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setup.py
View file @ 5600b6b6
import os
import sys
import io
from setuptools import setup, find_packages
import distutils
from distutils.extension import Extension
from contextlib import redirect_stdout
from importlib import import_module
sys.path.insert(0, os.path.abspath('doc'))
from version_from_git import version_number_from_git
from setuptools import setup, __version__ as setuptools_version
if '--use-cython' in sys.argv:
USE_CYTHON = True
sys.argv.remove('--use-cython')
else:
USE_CYTHON = False
if int(setuptools_version.split('.')[0]) < 61:
raise Exception(
"[ERROR] pystencils requires at least setuptools version 61 to install.\n"
"If this error occurs during an installation via pip, it is likely that there is a conflict between "
"versions of setuptools installed by pip and the system package manager. "
"In this case, it is recommended to install pystencils into a virtual environment instead."
)
import versioneer
quick_tests = [
'test_datahandling.test_kernel',
'test_blocking_staggered.test_blocking_staggered',
'test_blocking_staggered.test_blocking_staggered',
'test_vectorization.test_vectorization_variable_size',
]
def get_cmdclass():
return versioneer.get_cmdclass()
class SimpleTestRunner(distutils.cmd.Command):
"""A custom command to run selected tests"""
description = 'run some quick tests'
user_options = []
@staticmethod
def _run_tests_in_module(test):
"""Short test runner function - to work also if py.test is not installed."""
test = 'pystencils_tests.' + test
mod, function_name = test.rsplit('.', 1)
if isinstance(mod, str):
mod = import_module(mod)
func = getattr(mod, function_name)
print(" -> %s in %s" % (function_name, mod.__name__))
with redirect_stdout(io.StringIO()):
func()
def initialize_options(self):
pass
def finalize_options(self):
pass
def run(self):
"""Run command."""
for test in quick_tests:
self._run_tests_in_module(test)
def readme():
with open('README.md') as f:
return f.read()
def cython_extensions(*extensions):
ext = '.pyx' if USE_CYTHON else '.c'
result = [Extension(e, [e.replace('.', '/') + ext]) for e in extensions]
if USE_CYTHON:
from Cython.Build import cythonize
result = cythonize(result, language_level=3)
return result
setup(name='pystencils',
version=version_number_from_git(),
description='Speeding up stencil computations on CPUs and GPUs',
long_description=readme(),
long_description_content_type="text/markdown",
author='Martin Bauer',
license='AGPLv3',
author_email='martin.bauer@fau.de',
url='https://i10git.cs.fau.de/pycodegen/pystencils/',
packages=['pystencils'] + ['pystencils.' + s for s in find_packages('pystencils')],
install_requires=['sympy>=1.1', 'numpy', 'appdirs', 'joblib'],
package_data={'pystencils': ['include/*.h']},
ext_modules = cython_extensions("pystencils.boundaries.createindexlistcython"),
classifiers=[
'Development Status :: 4 - Beta',
'Framework :: Jupyter',
'Topic :: Software Development :: Code Generators',
'Topic :: Scientific/Engineering :: Physics',
'Intended Audience :: Developers',
'Intended Audience :: Science/Research',
'License :: OSI Approved :: GNU Affero General Public License v3 or later (AGPLv3+)',
],
project_urls={
"Bug Tracker": "https://i10git.cs.fau.de/pycodegen/pystencils/issues",
"Documentation": "http://pycodegen.pages.walberla.net/pystencils/",
"Source Code": "https://i10git.cs.fau.de/pycodegen/pystencils",
},
extras_require={
'gpu': ['pycuda'],
'alltrafos': ['islpy', 'py-cpuinfo'],
'bench_db': ['blitzdb', 'pymongo', 'pandas'],
'interactive': ['matplotlib', 'ipy_table', 'imageio', 'jupyter', 'pyevtk'],
'doc': ['sphinx', 'sphinx_rtd_theme', 'nbsphinx',
'sphinxcontrib-bibtex', 'sphinx_autodoc_typehints', 'pandoc'],
},
tests_require=['pytest', 'pytest-cov', 'pytest-xdist', 'flake8', 'nbformat', 'nbconvert', 'ipython'],
python_requires=">=3.6",
cmdclass={
'quicktest': SimpleTestRunner
}
)
setup(
version=versioneer.get_version(),
cmdclass=get_cmdclass(),
)
pystencils/__init__.py → src/pystencils/__init__.py
View file @ 5600b6b6
"""Module to generate stencil kernels in C or CUDA using sympy expressions and call them as Python functions"""
from . import sympy_gmpy_bug_workaround # NOQA
from .enums import Backend, Target
from . import fd
from . import stencil as stencil
from .assignment import Assignment, assignment_from_stencil
from .data_types import TypedSymbol
from .datahandling import create_data_handling
from .display_utils import show_code, to_dot
from .assignment import Assignment, AddAugmentedAssignment, assignment_from_stencil
from .typing.typed_sympy import TypedSymbol
from .display_utils import get_code_obj, get_code_str, show_code, to_dot
from .field import Field, FieldType, fields
from .kernel_decorator import kernel
from .kernelcreation import create_indexed_kernel, create_kernel, create_staggered_kernel
from .config import CreateKernelConfig
from .cache import clear_cache
from .kernel_decorator import kernel, kernel_config
from .kernelcreation import create_kernel, create_staggered_kernel
from .simp import AssignmentCollection
from .slicing import make_slice
from .spatial_coordinates import x_, x_staggered, x_staggered_vector, x_vector, y_, y_staggered, z_, z_staggered
from .sympyextensions import SymbolCreator
from .datahandling import create_data_handling
__all__ = ['Field', 'FieldType', 'fields',
'TypedSymbol',
'make_slice',
'create_kernel', 'create_indexed_kernel', 'create_staggered_kernel',
'show_code', 'to_dot',
'CreateKernelConfig',
'create_kernel', 'create_staggered_kernel',
'Target', 'Backend',
'show_code', 'to_dot', 'get_code_obj', 'get_code_str',
'AssignmentCollection',
'Assignment',
'Assignment', 'AddAugmentedAssignment',
'assignment_from_stencil',
'SymbolCreator',
'create_data_handling',
'kernel',
'clear_cache',
'kernel', 'kernel_config',
'x_', 'y_', 'z_',
'x_staggered', 'y_staggered', 'z_staggered',
'x_vector', 'x_staggered_vector',
'fd',
'stencil']
from . import _version
__version__ = _version.get_versions()['version']
src/pystencils/_version.py 0 → 100644
View file @ 5600b6b6
# This file helps to compute a version number in source trees obtained from
# git-archive tarball (such as those provided by githubs download-from-tag
# feature). Distribution tarballs (built by setup.py sdist) and build
# directories (produced by setup.py build) will contain a much shorter file
# that just contains the computed version number.
# This file is released into the public domain.
# Generated by versioneer-0.29
# https://github.com/python-versioneer/python-versioneer
"""Git implementation of _version.py."""
import errno
import os
import re
import subprocess
import sys
from typing import Any, Callable, Dict, List, Optional, Tuple
import functools
def get_keywords() -> Dict[str, str]:
"""Get the keywords needed to look up the version information."""
# these strings will be replaced by git during git-archive.
# setup.py/versioneer.py will grep for the variable names, so they must
# each be defined on a line of their own. _version.py will just call
# get_keywords().
git_refnames = "$Format:%d$"
git_full = "$Format:%H$"
git_date = "$Format:%ci$"
keywords = {"refnames": git_refnames, "full": git_full, "date": git_date}
return keywords
class VersioneerConfig:
"""Container for Versioneer configuration parameters."""
VCS: str
style: str
tag_prefix: str
parentdir_prefix: str
versionfile_source: str
verbose: bool
def get_config() -> VersioneerConfig:
"""Create, populate and return the VersioneerConfig() object."""
# these strings are filled in when 'setup.py versioneer' creates
# _version.py
cfg = VersioneerConfig()
cfg.VCS = "git"
cfg.style = "pep440"
cfg.tag_prefix = "release/"
cfg.parentdir_prefix = "pystencils-"
cfg.versionfile_source = "src/pystencils/_version.py"
cfg.verbose = False
return cfg
class NotThisMethod(Exception):
"""Exception raised if a method is not valid for the current scenario."""
LONG_VERSION_PY: Dict[str, str] = {}
HANDLERS: Dict[str, Dict[str, Callable]] = {}
def register_vcs_handler(vcs: str, method: str) -> Callable: # decorator
"""Create decorator to mark a method as the handler of a VCS."""
def decorate(f: Callable) -> Callable:
"""Store f in HANDLERS[vcs][method]."""
if vcs not in HANDLERS:
HANDLERS[vcs] = {}
HANDLERS[vcs][method] = f
return f
return decorate
def run_command(
commands: List[str],
args: List[str],
cwd: Optional[str] = None,
verbose: bool = False,
hide_stderr: bool = False,
env: Optional[Dict[str, str]] = None,
) -> Tuple[Optional[str], Optional[int]]:
"""Call the given command(s)."""
assert isinstance(commands, list)
process = None
popen_kwargs: Dict[str, Any] = {}
if sys.platform == "win32":
# This hides the console window if pythonw.exe is used
startupinfo = subprocess.STARTUPINFO()
startupinfo.dwFlags |= subprocess.STARTF_USESHOWWINDOW
popen_kwargs["startupinfo"] = startupinfo
for command in commands:
try:
dispcmd = str([command] + args)
# remember shell=False, so use git.cmd on windows, not just git
process = subprocess.Popen([command] + args, cwd=cwd, env=env,
stdout=subprocess.PIPE,
stderr=(subprocess.PIPE if hide_stderr
else None), **popen_kwargs)
break
except OSError as e:
if e.errno == errno.ENOENT:
continue
if verbose:
print("unable to run %s" % dispcmd)
print(e)
return None, None
else:
if verbose:
print("unable to find command, tried %s" % (commands,))
return None, None
stdout = process.communicate()[0].strip().decode()
if process.returncode != 0:
if verbose:
print("unable to run %s (error)" % dispcmd)
print("stdout was %s" % stdout)
return None, process.returncode
return stdout, process.returncode
def versions_from_parentdir(
parentdir_prefix: str,
root: str,
verbose: bool,
) -> Dict[str, Any]:
"""Try to determine the version from the parent directory name.
Source tarballs conventionally unpack into a directory that includes both
the project name and a version string. We will also support searching up
two directory levels for an appropriately named parent directory
"""
rootdirs = []
for _ in range(3):
dirname = os.path.basename(root)
if dirname.startswith(parentdir_prefix):
return {"version": dirname[len(parentdir_prefix):],
"full-revisionid": None,
"dirty": False, "error": None, "date": None}
rootdirs.append(root)
root = os.path.dirname(root) # up a level
if verbose:
print("Tried directories %s but none started with prefix %s" %
(str(rootdirs), parentdir_prefix))
raise NotThisMethod("rootdir doesn't start with parentdir_prefix")
@register_vcs_handler("git", "get_keywords")
def git_get_keywords(versionfile_abs: str) -> Dict[str, str]:
"""Extract version information from the given file."""
# the code embedded in _version.py can just fetch the value of these
# keywords. When used from setup.py, we don't want to import _version.py,
# so we do it with a regexp instead. This function is not used from
# _version.py.
keywords: Dict[str, str] = {}
try:
with open(versionfile_abs, "r") as fobj:
for line in fobj:
if line.strip().startswith("git_refnames ="):
mo = re.search(r'=\s*"(.*)"', line)
if mo:
keywords["refnames"] = mo.group(1)
if line.strip().startswith("git_full ="):
mo = re.search(r'=\s*"(.*)"', line)
if mo:
keywords["full"] = mo.group(1)
if line.strip().startswith("git_date ="):
mo = re.search(r'=\s*"(.*)"', line)
if mo:
keywords["date"] = mo.group(1)
except OSError:
pass
return keywords
@register_vcs_handler("git", "keywords")
def git_versions_from_keywords(
keywords: Dict[str, str],
tag_prefix: str,
verbose: bool,
) -> Dict[str, Any]:
"""Get version information from git keywords."""
if "refnames" not in keywords:
raise NotThisMethod("Short version file found")
date = keywords.get("date")
if date is not None:
# Use only the last line. Previous lines may contain GPG signature
# information.
date = date.splitlines()[-1]
# git-2.2.0 added "%cI", which expands to an ISO-8601 -compliant
# datestamp. However we prefer "%ci" (which expands to an "ISO-8601
# -like" string, which we must then edit to make compliant), because
# it's been around since git-1.5.3, and it's too difficult to
# discover which version we're using, or to work around using an
# older one.
date = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
refnames = keywords["refnames"].strip()
if refnames.startswith("$Format"):
if verbose:
print("keywords are unexpanded, not using")
raise NotThisMethod("unexpanded keywords, not a git-archive tarball")
refs = {r.strip() for r in refnames.strip("()").split(",")}
# starting in git-1.8.3, tags are listed as "tag: foo-1.0" instead of
# just "foo-1.0". If we see a "tag: " prefix, prefer those.
TAG = "tag: "
tags = {r[len(TAG):] for r in refs if r.startswith(TAG)}
if not tags:
# Either we're using git < 1.8.3, or there really are no tags. We use
# a heuristic: assume all version tags have a digit. The old git %d
# expansion behaves like git log --decorate=short and strips out the
# refs/heads/ and refs/tags/ prefixes that would let us distinguish
# between branches and tags. By ignoring refnames without digits, we
# filter out many common branch names like "release" and
# "stabilization", as well as "HEAD" and "master".
tags = {r for r in refs if re.search(r'\d', r)}
if verbose:
print("discarding '%s', no digits" % ",".join(refs - tags))
if verbose:
print("likely tags: %s" % ",".join(sorted(tags)))
for ref in sorted(tags):
# sorting will prefer e.g. "2.0" over "2.0rc1"
if ref.startswith(tag_prefix):
r = ref[len(tag_prefix):]
# Filter out refs that exactly match prefix or that don't start
# with a number once the prefix is stripped (mostly a concern
# when prefix is '')
if not re.match(r'\d', r):
continue
if verbose:
print("picking %s" % r)
return {"version": r,
"full-revisionid": keywords["full"].strip(),
"dirty": False, "error": None,
"date": date}
# no suitable tags, so version is "0+unknown", but full hex is still there
if verbose:
print("no suitable tags, using unknown + full revision id")
return {"version": "0+unknown",
"full-revisionid": keywords["full"].strip(),
"dirty": False, "error": "no suitable tags", "date": None}
@register_vcs_handler("git", "pieces_from_vcs")
def git_pieces_from_vcs(
tag_prefix: str,
root: str,
verbose: bool,
runner: Callable = run_command
) -> Dict[str, Any]:
"""Get version from 'git describe' in the root of the source tree.
This only gets called if the git-archive 'subst' keywords were *not*
expanded, and _version.py hasn't already been rewritten with a short
version string, meaning we're inside a checked out source tree.
"""
GITS = ["git"]
if sys.platform == "win32":
GITS = ["git.cmd", "git.exe"]
# GIT_DIR can interfere with correct operation of Versioneer.
# It may be intended to be passed to the Versioneer-versioned project,
# but that should not change where we get our version from.
env = os.environ.copy()
env.pop("GIT_DIR", None)
runner = functools.partial(runner, env=env)
_, rc = runner(GITS, ["rev-parse", "--git-dir"], cwd=root,
hide_stderr=not verbose)
if rc != 0:
if verbose:
print("Directory %s not under git control" % root)
raise NotThisMethod("'git rev-parse --git-dir' returned error")
# if there is a tag matching tag_prefix, this yields TAG-NUM-gHEX[-dirty]
# if there isn't one, this yields HEX[-dirty] (no NUM)
describe_out, rc = runner(GITS, [
"describe", "--tags", "--dirty", "--always", "--long",
"--match", f"{tag_prefix}[[:digit:]]*"
], cwd=root)
# --long was added in git-1.5.5
if describe_out is None:
raise NotThisMethod("'git describe' failed")
describe_out = describe_out.strip()
full_out, rc = runner(GITS, ["rev-parse", "HEAD"], cwd=root)
if full_out is None:
raise NotThisMethod("'git rev-parse' failed")
full_out = full_out.strip()
pieces: Dict[str, Any] = {}
pieces["long"] = full_out
pieces["short"] = full_out[:7] # maybe improved later
pieces["error"] = None
branch_name, rc = runner(GITS, ["rev-parse", "--abbrev-ref", "HEAD"],
cwd=root)
# --abbrev-ref was added in git-1.6.3
if rc != 0 or branch_name is None:
raise NotThisMethod("'git rev-parse --abbrev-ref' returned error")
branch_name = branch_name.strip()
if branch_name == "HEAD":
# If we aren't exactly on a branch, pick a branch which represents
# the current commit. If all else fails, we are on a branchless
# commit.
branches, rc = runner(GITS, ["branch", "--contains"], cwd=root)
# --contains was added in git-1.5.4
if rc != 0 or branches is None:
raise NotThisMethod("'git branch --contains' returned error")
branches = branches.split("\n")
# Remove the first line if we're running detached
if "(" in branches[0]:
branches.pop(0)
# Strip off the leading "* " from the list of branches.
branches = [branch[2:] for branch in branches]
if "master" in branches:
branch_name = "master"
elif not branches:
branch_name = None
else:
# Pick the first branch that is returned. Good or bad.
branch_name = branches[0]
pieces["branch"] = branch_name
# parse describe_out. It will be like TAG-NUM-gHEX[-dirty] or HEX[-dirty]
# TAG might have hyphens.
git_describe = describe_out
# look for -dirty suffix
dirty = git_describe.endswith("-dirty")
pieces["dirty"] = dirty
if dirty:
git_describe = git_describe[:git_describe.rindex("-dirty")]
# now we have TAG-NUM-gHEX or HEX
if "-" in git_describe:
# TAG-NUM-gHEX
mo = re.search(r'^(.+)-(\d+)-g([0-9a-f]+)$', git_describe)
if not mo:
# unparsable. Maybe git-describe is misbehaving?
pieces["error"] = ("unable to parse git-describe output: '%s'"
% describe_out)
return pieces
# tag
full_tag = mo.group(1)
if not full_tag.startswith(tag_prefix):
if verbose:
fmt = "tag '%s' doesn't start with prefix '%s'"
print(fmt % (full_tag, tag_prefix))
pieces["error"] = ("tag '%s' doesn't start with prefix '%s'"
% (full_tag, tag_prefix))
return pieces
pieces["closest-tag"] = full_tag[len(tag_prefix):]
# distance: number of commits since tag
pieces["distance"] = int(mo.group(2))
# commit: short hex revision ID
pieces["short"] = mo.group(3)
else:
# HEX: no tags
pieces["closest-tag"] = None
out, rc = runner(GITS, ["rev-list", "HEAD", "--left-right"], cwd=root)
pieces["distance"] = len(out.split()) # total number of commits
# commit date: see ISO-8601 comment in git_versions_from_keywords()
date = runner(GITS, ["show", "-s", "--format=%ci", "HEAD"], cwd=root)[0].strip()
# Use only the last line. Previous lines may contain GPG signature
# information.
date = date.splitlines()[-1]
pieces["date"] = date.strip().replace(" ", "T", 1).replace(" ", "", 1)
return pieces
def plus_or_dot(pieces: Dict[str, Any]) -> str:
"""Return a + if we don't already have one, else return a ."""
if "+" in pieces.get("closest-tag", ""):
return "."
return "+"
def render_pep440(pieces: Dict[str, Any]) -> str:
"""Build up version string, with post-release "local version identifier".
Our goal: TAG[+DISTANCE.gHEX[.dirty]] . Note that if you
get a tagged build and then dirty it, you'll get TAG+0.gHEX.dirty
Exceptions:
1: no tags. git_describe was just HEX. 0+untagged.DISTANCE.gHEX[.dirty]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += plus_or_dot(pieces)
rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
else:
# exception #1
rendered = "0+untagged.%d.g%s" % (pieces["distance"],
pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
return rendered
def render_pep440_branch(pieces: Dict[str, Any]) -> str:
"""TAG[[.dev0]+DISTANCE.gHEX[.dirty]] .
The ".dev0" means not master branch. Note that .dev0 sorts backwards
(a feature branch will appear "older" than the master branch).
Exceptions:
1: no tags. 0[.dev0]+untagged.DISTANCE.gHEX[.dirty]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
if pieces["branch"] != "master":
rendered += ".dev0"
rendered += plus_or_dot(pieces)
rendered += "%d.g%s" % (pieces["distance"], pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
else:
# exception #1
rendered = "0"
if pieces["branch"] != "master":
rendered += ".dev0"
rendered += "+untagged.%d.g%s" % (pieces["distance"],
pieces["short"])
if pieces["dirty"]:
rendered += ".dirty"
return rendered
def pep440_split_post(ver: str) -> Tuple[str, Optional[int]]:
"""Split pep440 version string at the post-release segment.
Returns the release segments before the post-release and the
post-release version number (or -1 if no post-release segment is present).
"""
vc = str.split(ver, ".post")
return vc[0], int(vc[1] or 0) if len(vc) == 2 else None
def render_pep440_pre(pieces: Dict[str, Any]) -> str:
"""TAG[.postN.devDISTANCE] -- No -dirty.
Exceptions:
1: no tags. 0.post0.devDISTANCE
"""
if pieces["closest-tag"]:
if pieces["distance"]:
# update the post release segment
tag_version, post_version = pep440_split_post(pieces["closest-tag"])
rendered = tag_version
if post_version is not None:
rendered += ".post%d.dev%d" % (post_version + 1, pieces["distance"])
else:
rendered += ".post0.dev%d" % (pieces["distance"])
else:
# no commits, use the tag as the version
rendered = pieces["closest-tag"]
else:
# exception #1
rendered = "0.post0.dev%d" % pieces["distance"]
return rendered
def render_pep440_post(pieces: Dict[str, Any]) -> str:
"""TAG[.postDISTANCE[.dev0]+gHEX] .
The ".dev0" means dirty. Note that .dev0 sorts backwards
(a dirty tree will appear "older" than the corresponding clean one),
but you shouldn't be releasing software with -dirty anyways.
Exceptions:
1: no tags. 0.postDISTANCE[.dev0]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += ".post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
rendered += plus_or_dot(pieces)
rendered += "g%s" % pieces["short"]
else:
# exception #1
rendered = "0.post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
rendered += "+g%s" % pieces["short"]
return rendered
def render_pep440_post_branch(pieces: Dict[str, Any]) -> str:
"""TAG[.postDISTANCE[.dev0]+gHEX[.dirty]] .
The ".dev0" means not master branch.
Exceptions:
1: no tags. 0.postDISTANCE[.dev0]+gHEX[.dirty]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += ".post%d" % pieces["distance"]
if pieces["branch"] != "master":
rendered += ".dev0"
rendered += plus_or_dot(pieces)
rendered += "g%s" % pieces["short"]
if pieces["dirty"]:
rendered += ".dirty"
else:
# exception #1
rendered = "0.post%d" % pieces["distance"]
if pieces["branch"] != "master":
rendered += ".dev0"
rendered += "+g%s" % pieces["short"]
if pieces["dirty"]:
rendered += ".dirty"
return rendered
def render_pep440_old(pieces: Dict[str, Any]) -> str:
"""TAG[.postDISTANCE[.dev0]] .
The ".dev0" means dirty.
Exceptions:
1: no tags. 0.postDISTANCE[.dev0]
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"] or pieces["dirty"]:
rendered += ".post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
else:
# exception #1
rendered = "0.post%d" % pieces["distance"]
if pieces["dirty"]:
rendered += ".dev0"
return rendered
def render_git_describe(pieces: Dict[str, Any]) -> str:
"""TAG[-DISTANCE-gHEX][-dirty].
Like 'git describe --tags --dirty --always'.
Exceptions:
1: no tags. HEX[-dirty] (note: no 'g' prefix)
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
if pieces["distance"]:
rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
else:
# exception #1
rendered = pieces["short"]
if pieces["dirty"]:
rendered += "-dirty"
return rendered
def render_git_describe_long(pieces: Dict[str, Any]) -> str:
"""TAG-DISTANCE-gHEX[-dirty].
Like 'git describe --tags --dirty --always -long'.
The distance/hash is unconditional.
Exceptions:
1: no tags. HEX[-dirty] (note: no 'g' prefix)
"""
if pieces["closest-tag"]:
rendered = pieces["closest-tag"]
rendered += "-%d-g%s" % (pieces["distance"], pieces["short"])
else:
# exception #1
rendered = pieces["short"]
if pieces["dirty"]:
rendered += "-dirty"
return rendered
def render(pieces: Dict[str, Any], style: str) -> Dict[str, Any]:
"""Render the given version pieces into the requested style."""
if pieces["error"]:
return {"version": "unknown",
"full-revisionid": pieces.get("long"),
"dirty": None,
"error": pieces["error"],
"date": None}
if not style or style == "default":
style = "pep440" # the default
if style == "pep440":
rendered = render_pep440(pieces)
elif style == "pep440-branch":
rendered = render_pep440_branch(pieces)
elif style == "pep440-pre":
rendered = render_pep440_pre(pieces)
elif style == "pep440-post":
rendered = render_pep440_post(pieces)
elif style == "pep440-post-branch":
rendered = render_pep440_post_branch(pieces)
elif style == "pep440-old":
rendered = render_pep440_old(pieces)
elif style == "git-describe":
rendered = render_git_describe(pieces)
elif style == "git-describe-long":
rendered = render_git_describe_long(pieces)
else:
raise ValueError("unknown style '%s'" % style)
return {"version": rendered, "full-revisionid": pieces["long"],
"dirty": pieces["dirty"], "error": None,
"date": pieces.get("date")}
def get_versions() -> Dict[str, Any]:
"""Get version information or return default if unable to do so."""
# I am in _version.py, which lives at ROOT/VERSIONFILE_SOURCE. If we have
# __file__, we can work backwards from there to the root. Some
# py2exe/bbfreeze/non-CPython implementations don't do __file__, in which
# case we can only use expanded keywords.
cfg = get_config()
verbose = cfg.verbose
try:
return git_versions_from_keywords(get_keywords(), cfg.tag_prefix,
verbose)
except NotThisMethod:
pass
try:
root = os.path.realpath(__file__)
# versionfile_source is the relative path from the top of the source
# tree (where the .git directory might live) to this file. Invert
# this to find the root from __file__.
for _ in cfg.versionfile_source.split('/'):
root = os.path.dirname(root)
except NameError:
return {"version": "0+unknown", "full-revisionid": None,
"dirty": None,
"error": "unable to find root of source tree",
"date": None}
try:
pieces = git_pieces_from_vcs(cfg.tag_prefix, root, verbose)
return render(pieces, cfg.style)
except NotThisMethod:
pass
try:
if cfg.parentdir_prefix:
return versions_from_parentdir(cfg.parentdir_prefix, root, verbose)
except NotThisMethod:
pass
return {"version": "0+unknown", "full-revisionid": None,
"dirty": None,
"error": "unable to compute version", "date": None}
pystencils/alignedarray.py → src/pystencils/alignedarray.py
View file @ 5600b6b6
import numpy as np
def aligned_empty(shape, byte_alignment=32, dtype=np.float64, byte_offset=0, order='C', align_inner_coordinate=True):
def aligned_empty(shape, byte_alignment=True, dtype=np.float64, byte_offset=0, order='C', align_inner_coordinate=True):
"""
Creates an aligned empty numpy array
Args:
shape: size of the array
byte_alignment: alignment in bytes, for the start address of the array holds (a % byte_alignment) == 0
By default, use the maximum required by the CPU (or 512 bits if this cannot be detected).
When 'cacheline' is specified, the size of a cache line is used.
dtype: numpy data type
byte_offset: offset in bytes for position that should be aligned i.e. (a+byte_offset) % byte_alignment == 0
typically used to align first inner cell instead of ghost layer
order: storage linearization order
align_inner_coordinate: if True, the start of the innermost coordinate lines are aligned as well
"""
if byte_alignment is True or byte_alignment == 'cacheline':
from pystencils.backends.simd_instruction_sets import (get_supported_instruction_sets, get_cacheline_size,
get_vector_instruction_set)
instruction_sets = get_supported_instruction_sets()
if instruction_sets is None:
byte_alignment = 64
elif byte_alignment == 'cacheline':
cacheline_sizes = [get_cacheline_size(is_name) for is_name in instruction_sets]
if all([s is None for s in cacheline_sizes]) or \
max([s for s in cacheline_sizes if s is not None]) > 0x100000:
widths = [get_vector_instruction_set(dtype, is_name)['width'] * np.dtype(dtype).itemsize
for is_name in instruction_sets
if type(get_vector_instruction_set(dtype, is_name)['width']) is int]
byte_alignment = 64 if all([s is None for s in widths]) else max(widths)
else:
byte_alignment = max([s for s in cacheline_sizes if s is not None])
elif not any([type(get_vector_instruction_set(dtype, is_name)['width']) is int
for is_name in instruction_sets]):
byte_alignment = 64
else:
byte_alignment = max([get_vector_instruction_set(dtype, is_name)['width'] * np.dtype(dtype).itemsize
for is_name in instruction_sets
if type(get_vector_instruction_set(dtype, is_name)['width']) is int])
if (not align_inner_coordinate) or (not hasattr(shape, '__len__')):
size = np.prod(shape)
d = np.dtype(dtype)
......@@ -51,7 +77,7 @@ def aligned_empty(shape, byte_alignment=32, dtype=np.float64, byte_offset=0, ord
return tmp
def aligned_zeros(shape, byte_alignment=16, dtype=float, byte_offset=0, order='C', align_inner_coordinate=True):
def aligned_zeros(shape, byte_alignment=True, dtype=np.float64, byte_offset=0, order='C', align_inner_coordinate=True):
arr = aligned_empty(shape, dtype=dtype, byte_offset=byte_offset,
order=order, byte_alignment=byte_alignment, align_inner_coordinate=align_inner_coordinate)
x = np.zeros((), arr.dtype)
......@@ -59,7 +85,7 @@ def aligned_zeros(shape, byte_alignment=16, dtype=float, byte_offset=0, order='C
return arr
def aligned_ones(shape, byte_alignment=16, dtype=float, byte_offset=0, order='C', align_inner_coordinate=True):
def aligned_ones(shape, byte_alignment=True, dtype=np.float64, byte_offset=0, order='C', align_inner_coordinate=True):
arr = aligned_empty(shape, dtype=dtype, byte_offset=byte_offset,
order=order, byte_alignment=byte_alignment, align_inner_coordinate=align_inner_coordinate)
x = np.ones((), arr.dtype)
......
pystencils/assignment.py → src/pystencils/assignment.py
View file @ 5600b6b6
# -*- coding: utf-8 -*-
import numpy as np
import sympy as sp
from sympy.codegen.ast import Assignment, AugmentedAssignment, AddAugmentedAssignment
from sympy.printing.latex import LatexPrinter
try:
from sympy.codegen.ast import Assignment
except ImportError:
Assignment = None
__all__ = ['Assignment', 'assignment_from_stencil']
__all__ = ['Assignment', 'AugmentedAssignment', 'AddAugmentedAssignment', 'assignment_from_stencil']
def print_assignment_latex(printer, expr):
binop = f"{expr.binop}=" if isinstance(expr, AugmentedAssignment) else ''
"""sympy cannot print Assignments as Latex. Thus, this function is added to the sympy Latex printer"""
printed_lhs = printer.doprint(expr.lhs)
printed_rhs = printer.doprint(expr.rhs)
return r"{printed_lhs} \leftarrow {printed_rhs}".format(printed_lhs=printed_lhs, printed_rhs=printed_rhs)
return fr"{printed_lhs} \leftarrow_{{{binop}}} {printed_rhs}"
def assignment_str(assignment):
return r"{lhs} ← {rhs}".format(lhs=assignment.lhs, rhs=assignment.rhs)
op = f"{assignment.binop}=" if isinstance(assignment, AugmentedAssignment) else '←'
return fr"{assignment.lhs} {op} {assignment.rhs}"
if Assignment:
_old_new = sp.codegen.ast.Assignment.__new__
Assignment.__str__ = assignment_str
LatexPrinter._print_Assignment = print_assignment_latex
else:
# back port for older sympy versions that don't have Assignment yet
# TODO Typing Part2 add default type, defult_float_type, default_int_type and use sane defaults
def _Assignment__new__(cls, lhs, rhs, *args, **kwargs):
if isinstance(lhs, (list, tuple, sp.Matrix)) and isinstance(rhs, (list, tuple, sp.Matrix)):
assert len(lhs) == len(rhs), f'{lhs} and {rhs} must have same length when performing vector assignment!'
return tuple(_old_new(cls, a, b, *args, **kwargs) for a, b in zip(lhs, rhs))
return _old_new(cls, lhs, rhs, *args, **kwargs)
class Assignment(sp.Rel): # pragma: no cover
rel_op = ':='
__slots__ = []
Assignment.__str__ = assignment_str
Assignment.__new__ = _Assignment__new__
LatexPrinter._print_Assignment = print_assignment_latex
def __new__(cls, lhs, rhs=0, **assumptions):
from sympy.matrices.expressions.matexpr import (
MatrixElement, MatrixSymbol)
lhs = sp.sympify(lhs)
rhs = sp.sympify(rhs)
# Tuple of things that can be on the lhs of an assignment
assignable = (sp.Symbol, MatrixSymbol, MatrixElement, sp.Indexed)
if not isinstance(lhs, assignable):
raise TypeError("Cannot assign to lhs of type %s." % type(lhs))
return sp.Rel.__new__(cls, lhs, rhs, **assumptions)
AugmentedAssignment.__str__ = assignment_str
LatexPrinter._print_AugmentedAssignment = print_assignment_latex
__str__ = assignment_str
_print_Assignment = print_assignment_latex
sp.MutableDenseMatrix.__hash__ = lambda self: hash(tuple(self))
def assignment_from_stencil(stencil_array, input_field, output_field,
......@@ -73,16 +63,19 @@ def assignment_from_stencil(stencil_array, input_field, output_field,
... [0, 6, 0]]
By default 'visual ordering is used - i.e. the stencil is applied as the nested lists are written down
>>> assignment_from_stencil(stencil, f, g, order='visual')
Assignment(g_C, 3*f_W + 6*f_S + 4*f_C + 2*f_N + 5*f_E)
>>> expected_output = Assignment(g[0, 0], 3*f[-1, 0] + 6*f[0, -1] + 4*f[0, 0] + 2*f[0, 1] + 5*f[1, 0])
>>> assignment_from_stencil(stencil, f, g, order='visual') == expected_output
True
'numpy' ordering uses the first coordinate of the stencil array for x offset, second for y offset etc.
>>> assignment_from_stencil(stencil, f, g, order='numpy')
Assignment(g_C, 2*f_W + 3*f_S + 4*f_C + 5*f_N + 6*f_E)
>>> expected_output = Assignment(g[0, 0], 2*f[-1, 0] + 3*f[0, -1] + 4*f[0, 0] + 5*f[0, 1] + 6*f[1, 0])
>>> assignment_from_stencil(stencil, f, g, order='numpy') == expected_output
True
You can also pass field accesses to apply the stencil at an already shifted position:
>>> assignment_from_stencil(stencil, f[1, 0], g[2, 0])
Assignment(g_2E, 3*f_C + 6*f_SE + 4*f_E + 2*f_NE + 5*f_2E)
>>> expected_output = Assignment(g[2, 0], 3*f[0, 0] + 6*f[1, -1] + 4*f[1, 0] + 2*f[1, 1] + 5*f[2, 0])
>>> assignment_from_stencil(stencil, f[1, 0], g[2, 0]) == expected_output
True
"""
from pystencils.field import Field
......
pystencils/astnodes.py → src/pystencils/astnodes.py
View file @ 5600b6b6
import collections.abc
import itertools
import uuid
from typing import Any, List, Optional, Sequence, Set, Union
import jinja2
import sympy as sp
from pystencils.data_types import TypedSymbol, cast_func, create_type
from pystencils.assignment import Assignment
from pystencils.enums import Target, Backend
from pystencils.field import Field
from pystencils.kernelparameters import FieldPointerSymbol, FieldShapeSymbol, FieldStrideSymbol
from pystencils.sympyextensions import fast_subs
from pystencils.typing import (create_type, get_next_parent_of_type,
FieldPointerSymbol, FieldShapeSymbol, FieldStrideSymbol, TypedSymbol, CFunction)
NodeOrExpr = Union['Node', sp.Expr]
......@@ -33,9 +37,13 @@ class Node:
raise NotImplementedError()
def subs(self, subs_dict) -> None:
"""Inplace! substitute, similar to sympy's but modifies the AST inplace."""
for a in self.args:
a.subs(subs_dict)
"""Inplace! Substitute, similar to sympy's but modifies the AST inplace."""
for i, a in enumerate(self.args):
result = a.subs(subs_dict)
if isinstance(a, sp.Expr): # sympy expressions' subs is out-of-place
self.args[i] = result
else: # all other should be in-place
assert result is None
@property
def func(self):
......@@ -102,14 +110,22 @@ class Conditional(Node):
result = self.true_block.undefined_symbols
if self.false_block:
result.update(self.false_block.undefined_symbols)
result.update(self.condition_expr.atoms(sp.Symbol))
if hasattr(self.condition_expr, 'atoms'):
result.update(self.condition_expr.atoms(sp.Symbol))
return result
def __str__(self):
return 'if:({!s}) '.format(self.condition_expr)
return self.__repr__()
def __repr__(self):
return 'if:({!r}) '.format(self.condition_expr)
result = f'if:({self.condition_expr!r}) '
if self.true_block:
result += f'\n\t{self.true_block}) '
if self.false_block:
result = 'else: '
result += f'\n\t{self.false_block} '
return result
def replace_by_true_block(self):
"""Replaces the conditional by its True block"""
......@@ -121,7 +137,6 @@ class Conditional(Node):
class KernelFunction(Node):
class Parameter:
"""Function parameter.
......@@ -161,7 +176,9 @@ class KernelFunction(Node):
def field_name(self):
return self.fields[0].name
def __init__(self, body, target, backend, compile_function, ghost_layers, function_name="kernel"):
def __init__(self, body, target: Target, backend: Backend, compile_function, ghost_layers,
function_name: str = "kernel",
assignments=None):
super(KernelFunction, self).__init__()
self._body = body
body.parent = self
......@@ -175,15 +192,20 @@ class KernelFunction(Node):
self.instruction_set = None # used in `vectorize` function to tell the backend which i.s. (SSE,AVX) to use
# function that compiles the node to a Python callable, is set by the backends
self._compile_function = compile_function
self.assignments = assignments
# If nontemporal stores are activated together with the Neon instruction set it results in cacheline zeroing
# For cacheline zeroing the information of the field size for each field is needed. Thus, in this case
# all field sizes are kernel parameters and not just the common field size used for the loops
self.use_all_written_field_sizes = False
@property
def target(self):
"""Currently either 'cpu' or 'gpu' """
"""See pystencils.Target"""
return self._target
@property
def backend(self):
"""Backend for generating the code e.g. 'llvm', 'c', 'cuda' """
"""Backend for generating the code: `Backend`"""
return self._backend
@property
......@@ -208,9 +230,21 @@ class KernelFunction(Node):
return self._body,
@property
def fields_accessed(self) -> Set['ResolvedFieldAccess']:
def fields_accessed(self) -> Set[Field]:
"""Set of Field instances: fields which are accessed inside this kernel function"""
return set(o.field for o in self.atoms(ResolvedFieldAccess))
return set(o.field for o in itertools.chain(self.atoms(ResolvedFieldAccess)))
@property
def fields_written(self) -> Set[Field]:
assignments = self.atoms(SympyAssignment)
return set().union(itertools.chain.from_iterable([f.field for f in a.lhs.free_symbols if hasattr(f, 'field')]
for a in assignments))
@property
def fields_read(self) -> Set[Field]:
assignments = self.atoms(SympyAssignment)
return set().union(itertools.chain.from_iterable([f.field for f in a.rhs.free_symbols if hasattr(f, 'field')]
for a in assignments))
def get_parameters(self) -> Sequence['KernelFunction.Parameter']:
"""Returns list of parameters for this function.
......@@ -218,6 +252,11 @@ class KernelFunction(Node):
This function is expensive, cache the result where possible!
"""
field_map = {f.name: f for f in self.fields_accessed}
sizes = set()
if self.use_all_written_field_sizes:
sizes = set().union(*(a.shape[:a.spatial_dimensions] for a in self.fields_written))
sizes = filter(lambda s: isinstance(s, FieldShapeSymbol), sizes)
def get_fields(symbol):
if hasattr(symbol, 'field_name'):
......@@ -227,9 +266,13 @@ class KernelFunction(Node):
return ()
argument_symbols = self._body.undefined_symbols - self.global_variables
argument_symbols.update(sizes)
parameters = [self.Parameter(symbol, get_fields(symbol)) for symbol in argument_symbols]
if hasattr(self, 'indexing'):
parameters += [self.Parameter(s, []) for s in self.indexing.symbolic_parameters()]
# Exclude paramters of type CFunction. These parameters will result in a C function call that will be handled
# by including a respective header file in the compute kernel. Hence, it is not a free parameter.
parameters = [p for p in parameters if not isinstance(p.symbol, CFunction)]
parameters.sort(key=lambda p: p.symbol.name)
return parameters
......@@ -240,7 +283,7 @@ class KernelFunction(Node):
def __repr__(self):
params = [p.symbol for p in self.get_parameters()]
return '{0} {1}({2})'.format(type(self).__name__, self.function_name, params)
return f'{type(self).__name__} {self.function_name}({params})'
def compile(self, *args, **kwargs):
if self._compile_function is None:
......@@ -263,12 +306,17 @@ class SkipIteration(Node):
class Block(Node):
def __init__(self, nodes: List[Node]):
def __init__(self, nodes: Union[Node, List[Node]]):
super(Block, self).__init__()
if not isinstance(nodes, list):
nodes = [nodes]
self._nodes = nodes
self.parent = None
for n in self._nodes:
n.parent = self
try:
n.parent = self
except AttributeError:
pass
@property
def args(self):
......@@ -278,23 +326,39 @@ class Block(Node):
for a in self.args:
a.subs(subs_dict)
def insert_front(self, node):
node.parent = self
self._nodes.insert(0, node)
def fast_subs(self, subs_dict, skip=None):
self._nodes = [fast_subs(a, subs_dict, skip) for a in self._nodes]
return self
def insert_front(self, node, if_not_exists=False):
if if_not_exists and len(self._nodes) > 0 and self._nodes[0] == node:
return
if isinstance(node, collections.abc.Iterable):
node = list(node)
for n in node:
n.parent = self
self._nodes = node + self._nodes
else:
node.parent = self
self._nodes.insert(0, node)
def insert_before(self, new_node, insert_before):
def insert_before(self, new_node, insert_before, if_not_exists=False):
new_node.parent = self
assert self._nodes.count(insert_before) == 1
idx = self._nodes.index(insert_before)
# move all assignment (definitions to the top)
if isinstance(new_node, SympyAssignment) and new_node.is_declaration:
while idx > 0:
pn = self._nodes[idx - 1]
if isinstance(pn, LoopOverCoordinate) or isinstance(pn, Conditional):
idx -= 1
else:
break
self._nodes.insert(idx, new_node)
if not if_not_exists or self._nodes[idx] != new_node:
self._nodes.insert(idx, new_node)
def insert_after(self, new_node, insert_after, if_not_exists=False):
new_node.parent = self
assert self._nodes.count(insert_after) == 1
idx = self._nodes.index(insert_after) + 1
if not if_not_exists or not (self._nodes[idx - 1] == new_node
or (idx < len(self._nodes) and self._nodes[idx] == new_node)):
self._nodes.insert(idx, new_node)
def append(self, node):
if isinstance(node, list) or isinstance(node, tuple):
......@@ -311,6 +375,7 @@ class Block(Node):
return tmp
def replace(self, child, replacements):
assert self._nodes.count(child) == 1
idx = self._nodes.index(child)
del self._nodes[idx]
if type(replacements) is list:
......@@ -325,7 +390,10 @@ class Block(Node):
def symbols_defined(self):
result = set()
for a in self.args:
result.update(a.symbols_defined)
if isinstance(a, Assignment):
result.update(a.free_symbols)
else:
result.update(a.symbols_defined)
return result
@property
......@@ -333,8 +401,12 @@ class Block(Node):
result = set()
defined_symbols = set()
for a in self.args:
result.update(a.undefined_symbols)
defined_symbols.update(a.symbols_defined)
if isinstance(a, Assignment):
result.update(a.free_symbols)
defined_symbols.update({a.lhs})
else:
result.update(a.undefined_symbols)
defined_symbols.update(a.symbols_defined)
return result - defined_symbols
def __str__(self):
......@@ -357,9 +429,9 @@ class PragmaBlock(Block):
class LoopOverCoordinate(Node):
LOOP_COUNTER_NAME_PREFIX = "ctr"
BlOCK_LOOP_COUNTER_NAME_PREFIX = "_blockctr"
BLOCK_LOOP_COUNTER_NAME_PREFIX = "_blockctr"
def __init__(self, body, coordinate_to_loop_over, start, stop, step=1, is_block_loop=False):
def __init__(self, body, coordinate_to_loop_over, start, stop, step=1, is_block_loop=False, custom_loop_ctr=None):
super(LoopOverCoordinate, self).__init__(parent=None)
self.body = body
body.parent = self
......@@ -370,11 +442,12 @@ class LoopOverCoordinate(Node):
self.body.parent = self
self.prefix_lines = []
self.is_block_loop = is_block_loop
self.custom_loop_ctr = custom_loop_ctr
def new_loop_with_different_body(self, new_body):
result = LoopOverCoordinate(new_body, self.coordinate_to_loop_over, self.start, self.stop,
self.step, self.is_block_loop)
result.prefix_lines = [l for l in self.prefix_lines]
self.step, self.is_block_loop, self.custom_loop_ctr)
result.prefix_lines = [prefix_line for prefix_line in self.prefix_lines]
return result
def subs(self, subs_dict):
......@@ -386,6 +459,16 @@ class LoopOverCoordinate(Node):
if hasattr(self.step, "subs"):
self.step = self.step.subs(subs_dict)
def fast_subs(self, subs_dict, skip=None):
self.body = fast_subs(self.body, subs_dict, skip)
if isinstance(self.start, sp.Basic):
self.start = fast_subs(self.start, subs_dict, skip)
if isinstance(self.stop, sp.Basic):
self.stop = fast_subs(self.stop, subs_dict, skip)
if isinstance(self.step, sp.Basic):
self.step = fast_subs(self.step, subs_dict, skip)
return self
@property
def args(self):
result = [self.body]
......@@ -418,18 +501,21 @@ class LoopOverCoordinate(Node):
@staticmethod
def get_loop_counter_name(coordinate_to_loop_over):
return "%s_%s" % (LoopOverCoordinate.LOOP_COUNTER_NAME_PREFIX, coordinate_to_loop_over)
return f"{LoopOverCoordinate.LOOP_COUNTER_NAME_PREFIX}_{coordinate_to_loop_over}"
@staticmethod
def get_block_loop_counter_name(coordinate_to_loop_over):
return "%s_%s" % (LoopOverCoordinate.BlOCK_LOOP_COUNTER_NAME_PREFIX, coordinate_to_loop_over)
return f"{LoopOverCoordinate.BLOCK_LOOP_COUNTER_NAME_PREFIX}_{coordinate_to_loop_over}"
@property
def loop_counter_name(self):
if self.is_block_loop:
return LoopOverCoordinate.get_block_loop_counter_name(self.coordinate_to_loop_over)
if self.custom_loop_ctr:
return self.custom_loop_ctr.name
else:
return LoopOverCoordinate.get_loop_counter_name(self.coordinate_to_loop_over)
if self.is_block_loop:
return LoopOverCoordinate.get_block_loop_counter_name(self.coordinate_to_loop_over)
else:
return LoopOverCoordinate.get_loop_counter_name(self.coordinate_to_loop_over)
@staticmethod
def is_loop_counter_symbol(symbol):
......@@ -443,22 +529,26 @@ class LoopOverCoordinate(Node):
@staticmethod
def get_loop_counter_symbol(coordinate_to_loop_over):
return TypedSymbol(LoopOverCoordinate.get_loop_counter_name(coordinate_to_loop_over), 'int')
return TypedSymbol(LoopOverCoordinate.get_loop_counter_name(coordinate_to_loop_over), 'int', nonnegative=True)
@staticmethod
def get_block_loop_counter_symbol(coordinate_to_loop_over):
return TypedSymbol(LoopOverCoordinate.get_block_loop_counter_name(coordinate_to_loop_over), 'int')
return TypedSymbol(LoopOverCoordinate.get_block_loop_counter_name(coordinate_to_loop_over),
'int',
nonnegative=True)
@property
def loop_counter_symbol(self):
if self.is_block_loop:
return self.get_block_loop_counter_symbol(self.coordinate_to_loop_over)
if self.custom_loop_ctr:
return self.custom_loop_ctr
else:
return self.get_loop_counter_symbol(self.coordinate_to_loop_over)
if self.is_block_loop:
return self.get_block_loop_counter_symbol(self.coordinate_to_loop_over)
else:
return self.get_loop_counter_symbol(self.coordinate_to_loop_over)
@property
def is_outermost_loop(self):
from pystencils.transformations import get_next_parent_of_type
return get_next_parent_of_type(self, LoopOverCoordinate) is None
@property
......@@ -478,15 +568,17 @@ class LoopOverCoordinate(Node):
class SympyAssignment(Node):
def __init__(self, lhs_symbol, rhs_expr, is_const=True):
def __init__(self, lhs_symbol, rhs_expr, is_const=True, use_auto=False):
super(SympyAssignment, self).__init__(parent=None)
self._lhs_symbol = lhs_symbol
self.rhs = rhs_expr
self._lhs_symbol = sp.sympify(lhs_symbol)
self._rhs = sp.sympify(rhs_expr)
self._is_const = is_const
self._is_declaration = self.__is_declaration()
self._use_auto = use_auto
def __is_declaration(self):
if isinstance(self._lhs_symbol, cast_func):
from pystencils.typing import CastFunc
if isinstance(self._lhs_symbol, CastFunc):
return False
if any(isinstance(self._lhs_symbol, c) for c in (Field.Access, sp.Indexed, TemporaryMemoryAllocation)):
return False
......@@ -496,15 +588,35 @@ class SympyAssignment(Node):
def lhs(self):
return self._lhs_symbol
@property
def rhs(self):
return self._rhs
@lhs.setter
def lhs(self, new_value):
self._lhs_symbol = new_value
self._is_declaration = self.__is_declaration()
@rhs.setter
def rhs(self, new_rhs_expr):
self._rhs = new_rhs_expr
def subs(self, subs_dict):
self.lhs = fast_subs(self.lhs, subs_dict)
self.rhs = fast_subs(self.rhs, subs_dict)
def fast_subs(self, subs_dict, skip=None):
self.lhs = fast_subs(self.lhs, subs_dict, skip)
self.rhs = fast_subs(self.rhs, subs_dict, skip)
return self
def optimize(self, optimizations):
try:
from sympy.codegen.rewriting import optimize
self.rhs = optimize(self.rhs, optimizations)
except Exception:
pass
@property
def args(self):
return [self._lhs_symbol, self.rhs]
......@@ -517,7 +629,7 @@ class SympyAssignment(Node):
@property
def undefined_symbols(self):
result = self.rhs.atoms(sp.Symbol)
result = {s for s in self.rhs.free_symbols if not isinstance(s, sp.Indexed)}
# Add loop counters if there a field accesses
loop_counters = set()
for symbol in result:
......@@ -525,7 +637,9 @@ class SympyAssignment(Node):
for i in range(len(symbol.offsets)):
loop_counters.add(LoopOverCoordinate.get_loop_counter_symbol(i))
result.update(loop_counters)
result.update(self._lhs_symbol.atoms(sp.Symbol))
return result
@property
......@@ -536,6 +650,10 @@ class SympyAssignment(Node):
def is_const(self):
return self._is_const
@property
def use_auto(self):
return self._use_auto
def replace(self, child, replacement):
if child == self.lhs:
replacement.parent = self
......@@ -544,7 +662,7 @@ class SympyAssignment(Node):
replacement.parent = self
self.rhs = replacement
else:
raise ValueError('%s is not in args of %s' % (replacement, self.__class__))
raise ValueError(f'{replacement} is not in args of {self.__class__}')
def __repr__(self):
return repr(self.lhs) + " ← " + repr(self.rhs)
......@@ -552,13 +670,21 @@ class SympyAssignment(Node):
def _repr_html_(self):
printed_lhs = sp.latex(self.lhs)
printed_rhs = sp.latex(self.rhs)
return "${printed_lhs} \\leftarrow {printed_rhs}$".format(printed_lhs=printed_lhs, printed_rhs=printed_rhs)
return f"${printed_lhs} \\leftarrow {printed_rhs}$"
def __hash__(self):
return hash((self.lhs, self.rhs))
def __eq__(self, other):
return type(self) is type(other) and (self.lhs, self.rhs) == (other.lhs, other.rhs)
class ResolvedFieldAccess(sp.Indexed):
def __new__(cls, base, linearized_index, field, offsets, idx_coordinate_values):
if not isinstance(base, sp.IndexedBase):
assert isinstance(base, TypedSymbol)
base = sp.IndexedBase(base, shape=(1,))
assert isinstance(base.label, TypedSymbol)
obj = super(ResolvedFieldAccess, cls).__new__(cls, base, linearized_index)
obj.field = field
obj.offsets = offsets
......@@ -570,7 +696,7 @@ class ResolvedFieldAccess(sp.Indexed):
self.args[1].subs(old, new),
self.field, self.offsets, self.idx_coordinate_values)
def fast_subs(self, substitutions):
def fast_subs(self, substitutions, skip=None):
if self in substitutions:
return substitutions[self]
return ResolvedFieldAccess(self.args[0].subs(substitutions),
......@@ -587,11 +713,14 @@ class ResolvedFieldAccess(sp.Indexed):
def __str__(self):
top = super(ResolvedFieldAccess, self).__str__()
return "%s (%s)" % (top, self.typed_symbol.dtype)
return f"{top} ({self.typed_symbol.dtype})"
def __getnewargs__(self):
return self.base, self.indices[0], self.field, self.offsets, self.idx_coordinate_values
def __getnewargs_ex__(self):
return (self.base, self.indices[0], self.field, self.offsets, self.idx_coordinate_values), {}
class TemporaryMemoryAllocation(Node):
"""Node for temporary memory buffer allocation.
......@@ -663,56 +792,79 @@ def early_out(condition):
return Conditional(vec_all(condition), Block([SkipIteration()]))
class DestructuringBindingsForFieldClass(Node):
"""
Defines all variables needed for describing a field (shape, pointer, strides)
"""
CLASS_TO_MEMBER_DICT = {
FieldPointerSymbol: "data",
FieldShapeSymbol: "shape",
FieldStrideSymbol: "stride"
}
CLASS_NAME_TEMPLATE = jinja2.Template("Field<{{ dtype }}, {{ ndim }}>")
def get_dummy_symbol(dtype='bool'):
return TypedSymbol(f'dummy{uuid.uuid4().hex}', create_type(dtype))
class SourceCodeComment(Node):
def __init__(self, text):
self.text = text
@property
def fields_accessed(self) -> Set['ResolvedFieldAccess']:
"""Set of Field instances: fields which are accessed inside this kernel function"""
return set(o.field for o in self.atoms(ResolvedFieldAccess))
def args(self):
return []
def __init__(self, body):
super(DestructuringBindingsForFieldClass, self).__init__()
self.headers = ['<Field.h>']
self.body = body
@property
def symbols_defined(self):
return set()
@property
def args(self) -> List[NodeOrExpr]:
"""Returns all arguments/children of this node."""
def undefined_symbols(self):
return set()
def __str__(self):
return "/* " + self.text + " */"
def __repr__(self):
return self.__str__()
class EmptyLine(Node):
def __init__(self):
pass
@property
def symbols_defined(self) -> Set[sp.Symbol]:
"""Set of symbols which are defined by this node."""
undefined_field_symbols = {s for s in self.body.undefined_symbols
if isinstance(s, (FieldPointerSymbol, FieldShapeSymbol, FieldStrideSymbol))}
return undefined_field_symbols
def args(self):
return []
@property
def undefined_symbols(self) -> Set[sp.Symbol]:
field_map = {f.name: f for f in self.fields_accessed}
undefined_field_symbols = self.symbols_defined
corresponding_field_names = {s.field_name for s in undefined_field_symbols if hasattr(s, 'field_name')}
corresponding_field_names |= {s.field_names[0] for s in undefined_field_symbols if hasattr(s, 'field_names')}
return {TypedSymbol(f, self.CLASS_NAME_TEMPLATE.render(dtype=field_map[f].dtype, ndim=field_map[f].ndim) + '&')
for f in corresponding_field_names} | \
(self.body.undefined_symbols - undefined_field_symbols)
def symbols_defined(self):
return set()
def subs(self, subs_dict) -> None:
"""Inplace! substitute, similar to sympy's but modifies the AST inplace."""
self.body.subs(subs_dict)
@property
def undefined_symbols(self):
return set()
def __str__(self):
return ""
def __repr__(self):
return self.__str__()
class ConditionalFieldAccess(sp.Function):
"""
:class:`pystencils.Field.Access` that is only executed if a certain condition is met.
Can be used, for instance, for out-of-bound checks.
"""
def __new__(cls, field_access, outofbounds_condition, outofbounds_value=0):
return sp.Function.__new__(cls, field_access, outofbounds_condition, sp.S(outofbounds_value))
@property
def func(self):
return self.__class__
def access(self):
return self.args[0]
def atoms(self, arg_type) -> Set[Any]:
return self.body.atoms(arg_type) | {s for s in self.symbols_defined if isinstance(s, arg_type)}
@property
def outofbounds_condition(self):
return self.args[1]
@property
def outofbounds_value(self):
return self.args[2]
def __getnewargs__(self):
return self.access, self.outofbounds_condition, self.outofbounds_value
def __getnewargs_ex__(self):
return (self.access, self.outofbounds_condition, self.outofbounds_value), {}
pystencils/backends/__init__.py → src/pystencils/backends/__init__.py
View file @ 5600b6b6
......@@ -6,9 +6,3 @@ try:
__all__.append('print_dot')
except ImportError:
pass
try:
from .llvm import generate_llvm # NOQA
__all__.append('generate_llvm')
except ImportError:
pass
src/pystencils/backends/arm_instruction_sets.py 0 → 100644
View file @ 5600b6b6
from pystencils.typing import CFunction
def get_argument_string(function_shortcut, first=''):
args = function_shortcut[function_shortcut.index('[') + 1: -1]
arg_string = "("
if first:
arg_string += first + ', '
for arg in args.split(","):
arg = arg.strip()
if not arg:
continue
if arg in ('0', '1', '2', '3', '4', '5'):
arg_string += "{" + arg + "},"
else:
arg_string += arg + ","
arg_string = arg_string[:-1] + ")"
return arg_string
def get_vector_instruction_set_arm(data_type='double', instruction_set='neon'):
if instruction_set not in ['neon', 'sme'] and not instruction_set.startswith('sve'):
raise NotImplementedError(instruction_set)
if instruction_set in ['sve', 'sve2', 'sme']:
cmp = 'cmp'
elif instruction_set.startswith('sve2') and instruction_set not in ('sve256', 'sve2048'):
cmp = 'cmp'
bitwidth = int(instruction_set[4:])
elif instruction_set.startswith('sve'):
cmp = 'cmp'
bitwidth = int(instruction_set[3:])
elif instruction_set == 'neon':
cmp = 'c'
bitwidth = 128
base_names = {
'+': 'add[0, 1]',
'-': 'sub[0, 1]',
'*': 'mul[0, 1]',
'/': 'div[0, 1]',
'sqrt': 'sqrt[0]',
'loadU': 'ld1[0]',
'storeU': 'st1[0, 1]',
'abs': 'abs[0]',
'==': f'{cmp}eq[0, 1]',
'!=': f'{cmp}eq[0, 1]',
'<=': f'{cmp}le[0, 1]',
'<': f'{cmp}lt[0, 1]',
'>=': f'{cmp}ge[0, 1]',
'>': f'{cmp}gt[0, 1]',
}
bits = {'double': 64,
'float': 32,
'int': 32}
result = dict()
if instruction_set in ['sve', 'sve2', 'sme']:
width = 'svcntd()' if data_type == 'double' else 'svcntw()'
intwidth = 'svcntw()'
result['bytes'] = 'svcntb()'
else:
width = bitwidth // bits[data_type]
intwidth = bitwidth // bits['int']
result['bytes'] = bitwidth // 8
if instruction_set.startswith('sve') or instruction_set == 'sme':
base_names['stream'] = 'stnt1[0, 1]'
prefix = 'sv'
suffix = f'_f{bits[data_type]}'
elif instruction_set == 'neon':
prefix = 'v'
suffix = f'q_f{bits[data_type]}'
if instruction_set in ['sve', 'sve2', 'sme']:
predicate = f'{prefix}whilelt_b{bits[data_type]}_u64({{loop_counter}}, {{loop_stop}})'
int_predicate = f'{prefix}whilelt_b{bits["int"]}_u64({{loop_counter}}, {{loop_stop}})'
else:
predicate = f'{prefix}whilelt_b{bits[data_type]}(0, {width})'
int_predicate = f'{prefix}whilelt_b{bits["int"]}(0, {intwidth})'
for intrinsic_id, function_shortcut in base_names.items():
function_shortcut = function_shortcut.strip()
name = function_shortcut[:function_shortcut.index('[')]
arg_string = get_argument_string(function_shortcut, first=predicate if prefix == 'sv' else '')
if prefix == 'sv' and not name.startswith('ld') and not name.startswith('st') and not name.startswith(cmp):
undef = '_x'
else:
undef = ''
result[intrinsic_id] = prefix + name + suffix + undef + arg_string
if instruction_set in ['sve', 'sve2', 'sme']:
result['width'] = CFunction(width, "int")
result['intwidth'] = CFunction(intwidth, "int")
else:
result['width'] = width
result['intwidth'] = intwidth
if instruction_set.startswith('sve') or instruction_set == 'sme':
result['makeVecConst'] = f'svdup_f{bits[data_type]}' + '({0})'
result['makeVecConstInt'] = f'svdup_s{bits["int"]}' + '({0})'
result['makeVecIndex'] = f'svindex_s{bits["int"]}' + '({0}, {1})'
if instruction_set != 'sme':
vindex = f'svindex_u{bits[data_type]}(0, {{0}})'
result['storeS'] = f'svst1_scatter_u{bits[data_type]}index_f{bits[data_type]}({predicate}, {{0}}, ' + \
vindex.format("{2}") + ', {1})'
result['loadS'] = f'svld1_gather_u{bits[data_type]}index_f{bits[data_type]}({predicate}, {{0}}, ' + \
vindex.format("{1}") + ')'
if instruction_set.startswith('sve2') and instruction_set not in ('sve256', 'sve2048'):
result['streamS'] = f'svstnt1_scatter_u{bits[data_type]}offset_f{bits[data_type]}({predicate}, {{0}}, ' + \
vindex.format(f"{{2}}*{bits[data_type]//8}") + ', {1})'
result['+int'] = f"svadd_s{bits['int']}_x({int_predicate}, " + "{0}, {1})"
result['float'] = f'svfloat{bits["float"]}_{"s" if instruction_set not in ["sve", "sve2", "sme"] else ""}t'
result['double'] = f'svfloat{bits["double"]}_{"s" if instruction_set not in ["sve", "sve2", "sme"] else ""}t'
result['int'] = f'svint{bits["int"]}_{"s" if instruction_set not in ["sve", "sve2", "sme"] else ""}t'
result['bool'] = f'svbool_{"s" if instruction_set not in ["sve", "sve2", "sme"] else ""}t'
result['headers'] = ['<arm_sve.h>', '<arm_acle.h>', '"arm_neon_helpers.h"']
result['&'] = f'svand_b_z({predicate},' + ' {0}, {1})'
result['|'] = f'svorr_b_z({predicate},' + ' {0}, {1})'
result['blendv'] = f'svsel_f{bits[data_type]}' + '({2}, {1}, {0})'
result['any'] = f'svptest_any({predicate}, {{0}})'
result['all'] = f'svcntp_b{bits[data_type]}({predicate}, {{0}}) == {width}'
result['maskStoreU'] = result['storeU'].replace(predicate, '{2}')
result['maskStream'] = result['stream'].replace(predicate, '{2}')
if instruction_set != 'sme':
result['maskStoreS'] = result['storeS'].replace(predicate, '{3}')
if instruction_set.startswith('sve2') and instruction_set not in ('sve256', 'sve2048'):
result['maskStreamS'] = result['streamS'].replace(predicate, '{3}')
result['streamFence'] = '__dmb(15)'
if instruction_set == 'sme':
result['function_prefix'] = '__attribute__((arm_locally_streaming))'
elif instruction_set not in ['sve', 'sve2', 'sme']:
result['compile_flags'] = [f'-msve-vector-bits={bitwidth}']
else:
result['makeVecConst'] = f'vdupq_n_f{bits[data_type]}' + '({0})'
result['makeVec'] = f'makeVec_f{bits[data_type]}' + '(' + ", ".join(['{' + str(i) + '}' for i in
range(width)]) + ')'
result['makeVecConstInt'] = f'vdupq_n_s{bits["int"]}' + '({0})'
result['makeVecInt'] = f'makeVec_s{bits["int"]}' + '({0}, {1}, {2}, {3})'
result['+int'] = f"vaddq_s{bits['int']}" + "({0}, {1})"
result[data_type] = f'float{bits[data_type]}x{width}_t'
result['int'] = f'int{bits["int"]}x{intwidth}_t'
result['bool'] = f'uint{bits[data_type]}x{width}_t'
result['headers'] = ['<arm_neon.h>', '"arm_neon_helpers.h"']
result['!='] = f'vmvnq_u{bits[data_type]}({result["=="]})'
result['&'] = f'vandq_u{bits[data_type]}' + '({0}, {1})'
result['|'] = f'vorrq_u{bits[data_type]}' + '({0}, {1})'
result['blendv'] = f'vbslq_f{bits[data_type]}' + '({2}, {1}, {0})'
result['any'] = f'vaddlvq_u8(vreinterpretq_u8_u{bits[data_type]}({{0}})) > 0'
result['all'] = f'vaddlvq_u8(vreinterpretq_u8_u{bits[data_type]}({{0}})) == 16*0xff'
# SVE has real nontemporal stores, so we only need to zero cachlines on Neon
result['cachelineZero'] = 'cachelineZero((void*) {0})'
result['cachelineSize'] = 'cachelineSize()'
return result
pystencils/backends/cbackend.py → src/pystencils/backends/cbackend.py
View file @ 5600b6b6
import re
from collections import namedtuple
import hashlib
from typing import Set
import jinja2
import numpy as np
import sympy as sp
from sympy.core import S
from sympy.printing.ccode import C89CodePrinter
from pystencils.astnodes import DestructuringBindingsForFieldClass, KernelFunction, Node
from pystencils.cpu.vectorization import vec_all, vec_any
from pystencils.data_types import (
PointerType, VectorType, address_of, cast_func, create_type, get_type_of_expression,
reinterpret_cast_func, vector_memory_access)
from sympy.logic.boolalg import BooleanFalse, BooleanTrue
from sympy.functions.elementary.trigonometric import TrigonometricFunction, InverseTrigonometricFunction
from sympy.functions.elementary.hyperbolic import HyperbolicFunction
from pystencils.astnodes import KernelFunction, LoopOverCoordinate, Node
from pystencils.cpu.vectorization import vec_all, vec_any, CachelineSize
from pystencils.typing import (
PointerType, VectorType, CastFunc, create_type, get_type_of_expression,
ReinterpretCastFunc, VectorMemoryAccess, BasicType, TypedSymbol, CFunction)
from pystencils.enums import Backend
from pystencils.fast_approximation import fast_division, fast_inv_sqrt, fast_sqrt
from pystencils.functions import DivFunc, AddressOf
from pystencils.integer_functions import (
bit_shift_left, bit_shift_right, bitwise_and, bitwise_or, bitwise_xor,
int_div, int_power_of_2, modulo_ceil)
from pystencils.kernelparameters import FieldPointerSymbol
try:
from sympy.printing.ccode import C99CodePrinter as CCodePrinter
from sympy.printing.c import C99CodePrinter as CCodePrinter # for sympy versions > 1.6
except ImportError:
from sympy.printing.ccode import CCodePrinter # for sympy versions < 1.1
from sympy.printing.ccode import C99CodePrinter as CCodePrinter
__all__ = ['generate_c', 'CustomCodeNode', 'PrintNode', 'get_headers', 'CustomSympyPrinter']
KERNCRAFT_NO_TERNARY_MODE = False
HEADER_REGEX = re.compile(r'^[<"].*[">]$')
def generate_c(ast_node: Node, signature_only: bool = False, dialect='c') -> str:
def generate_c(ast_node: Node,
signature_only: bool = False,
dialect: Backend = Backend.C,
custom_backend=None,
with_globals=True) -> str:
"""Prints an abstract syntax tree node as C or CUDA code.
This function does not need to distinguish between C, C++ or CUDA code, it just prints 'C-like' code as encoded
in the abstract syntax tree (AST). The AST is built differently for C or CUDA by calling different create_kernel
functions.
This function does not need to distinguish for most AST nodes between C, C++ or CUDA code, it just prints 'C-like'
code as encoded in the abstract syntax tree (AST). The AST is built differently for C or CUDA by calling different
create_kernel functions.
Args:
ast_node:
signature_only:
dialect: 'c' or 'cuda'
ast_node: ast representation of kernel
signature_only: generate signature without function body
dialect: `Backend`: 'C' or 'CUDA'
custom_backend: use own custom printer for code generation
with_globals: enable usage of global variables
Returns:
C-like code for the ast node and its descendants
"""
......@@ -49,14 +59,27 @@ def generate_c(ast_node: Node, signature_only: bool = False, dialect='c') -> str
ast_node.global_variables.update(d.symbols_defined)
else:
ast_node.global_variables = d.symbols_defined
printer = CBackend(signature_only=signature_only,
vector_instruction_set=ast_node.instruction_set,
dialect=dialect)
if custom_backend:
printer = custom_backend
elif dialect == Backend.C:
try:
# TODO Vectorization Revamp: instruction_set should not be just slapped on ast
instruction_set = ast_node.instruction_set
except Exception:
instruction_set = None
printer = CBackend(signature_only=signature_only,
vector_instruction_set=instruction_set)
elif dialect == Backend.CUDA:
from pystencils.backends.cuda_backend import CudaBackend
printer = CudaBackend(signature_only=signature_only)
else:
raise ValueError(f'Unknown {dialect=}')
code = printer(ast_node)
if not signature_only and isinstance(ast_node, KernelFunction):
code = "\n" + code
for declaration in global_declarations:
code = printer(declaration) + "\n" + code
if with_globals and global_declarations:
code = "\n" + code
for declaration in global_declarations:
code = printer(declaration) + "\n" + code
return code
......@@ -65,8 +88,8 @@ def get_global_declarations(ast):
global_declarations = []
def visit_node(sub_ast):
nonlocal global_declarations
if hasattr(sub_ast, "required_global_declarations"):
nonlocal global_declarations
global_declarations += sub_ast.required_global_declarations
if hasattr(sub_ast, "args"):
......@@ -75,7 +98,7 @@ def get_global_declarations(ast):
visit_node(ast)
return set(global_declarations)
return sorted(set(global_declarations), key=str)
def get_headers(ast_node: Node) -> Set[str]:
......@@ -88,15 +111,22 @@ def get_headers(ast_node: Node) -> Set[str]:
if hasattr(ast_node, 'headers'):
headers.update(ast_node.headers)
for a in ast_node.args:
if isinstance(a, Node):
if isinstance(a, (sp.Expr, Node)):
headers.update(get_headers(a))
for g in get_global_declarations(ast_node):
if isinstance(g, Node):
headers.update(get_headers(g))
for h in headers:
assert HEADER_REGEX.match(h), f'header /{h}/ does not follow the pattern /"..."/ or /<...>/'
return headers
# --------------------------------------- Backend Specific Nodes -------------------------------------------------------
# TODO future CustomCodeNode should not be backend specific move it elsewhere
class CustomCodeNode(Node):
def __init__(self, code, symbols_read, symbols_defined, parent=None):
super(CustomCodeNode, self).__init__(parent=parent)
......@@ -105,7 +135,7 @@ class CustomCodeNode(Node):
self._symbols_defined = set(symbols_defined)
self.headers = []
def get_code(self, dialect, vector_instruction_set):
def get_code(self, dialect, vector_instruction_set, print_arg):
return self._code
@property
......@@ -120,11 +150,17 @@ class CustomCodeNode(Node):
def undefined_symbols(self):
return self._symbols_read - self._symbols_defined
def __eq__(self, other):
return type(self) is type(other) and self._code == other._code
def __hash__(self):
return hash(self._code)
class PrintNode(CustomCodeNode):
# noinspection SpellCheckingInspection
def __init__(self, symbol_to_print):
code = '\nstd::cout << "%s = " << %s << std::endl; \n' % (symbol_to_print.name, symbol_to_print.name)
code = f'\nstd::cout << "{symbol_to_print.name} = " << {symbol_to_print.name} << std::endl; \n'
super(PrintNode, self).__init__(code, symbols_read=[symbol_to_print], symbols_defined=set())
self.headers.append("<iostream>")
......@@ -135,12 +171,12 @@ class PrintNode(CustomCodeNode):
# noinspection PyPep8Naming
class CBackend:
def __init__(self, sympy_printer=None, signature_only=False, vector_instruction_set=None, dialect='c'):
def __init__(self, sympy_printer=None, signature_only=False, vector_instruction_set=None, dialect=Backend.C):
if sympy_printer is None:
if vector_instruction_set is not None:
self.sympy_printer = VectorizedCustomSympyPrinter(vector_instruction_set, dialect)
self.sympy_printer = VectorizedCustomSympyPrinter(vector_instruction_set)
else:
self.sympy_printer = CustomSympyPrinter(dialect)
self.sympy_printer = CustomSympyPrinter()
else:
self.sympy_printer = sympy_printer
......@@ -148,6 +184,8 @@ class CBackend:
self._indent = " "
self._dialect = dialect
self._signatureOnly = signature_only
self._kwargs = {}
self.sympy_printer._kwargs = self._kwargs
def __call__(self, node):
prev_is = VectorType.instruction_set
......@@ -157,19 +195,25 @@ class CBackend:
return result
def _print(self, node):
if isinstance(node, str):
return node
for cls in type(node).__mro__:
method_name = "_print_" + cls.__name__
method_name = f"_print_{cls.__name__}"
if hasattr(self, method_name):
return getattr(self, method_name)(node)
raise NotImplementedError("CBackend does not support node of type " + str(type(node)))
raise NotImplementedError(f"{self.__class__.__name__} does not support node of type {node.__class__.__name__}")
def _print_AbstractType(self, node):
return str(node)
def _print_KernelFunction(self, node):
function_arguments = ["%s %s" % (str(s.symbol.dtype), s.symbol.name) for s in node.get_parameters()]
function_arguments = [f"{self._print(s.symbol.dtype)} {s.symbol.name}" for s in node.get_parameters()
if not type(s.symbol) is CFunction]
launch_bounds = ""
if self._dialect == 'cuda':
if self._dialect == Backend.CUDA:
max_threads = node.indexing.max_threads_per_block()
if max_threads:
launch_bounds = "__launch_bounds__({}) ".format(max_threads)
launch_bounds = f"__launch_bounds__({max_threads}) "
func_declaration = "FUNC_PREFIX %svoid %s(%s)" % (launch_bounds, node.function_name,
", ".join(function_arguments))
if self._signatureOnly:
......@@ -183,50 +227,166 @@ class CBackend:
return "{\n%s\n}" % (self._indent + self._indent.join(block_contents.splitlines(True)))
def _print_PragmaBlock(self, node):
return "%s\n%s" % (node.pragma_line, self._print_Block(node))
return f"{node.pragma_line}\n{self._print_Block(node)}"
def _print_LoopOverCoordinate(self, node):
counter_symbol = node.loop_counter_name
start = "int %s = %s" % (counter_symbol, self.sympy_printer.doprint(node.start))
condition = "%s < %s" % (counter_symbol, self.sympy_printer.doprint(node.stop))
update = "%s += %s" % (counter_symbol, self.sympy_printer.doprint(node.step),)
loop_str = "for (%s; %s; %s)" % (start, condition, update)
counter_name = node.loop_counter_name
counter_dtype = node.loop_counter_symbol.dtype.c_name
start = f"{counter_dtype} {counter_name} = {self.sympy_printer.doprint(node.start)}"
condition = f"{counter_name} < {self.sympy_printer.doprint(node.stop)}"
update = f"{counter_name} += {self.sympy_printer.doprint(node.step)}"
loop_str = f"for ({start}; {condition}; {update})"
self._kwargs['loop_counter'] = counter_name
self._kwargs['loop_stop'] = node.stop
prefix = "\n".join(node.prefix_lines)
if prefix:
prefix += "\n"
return "%s%s\n%s" % (prefix, loop_str, self._print(node.body))
return f"{prefix}{loop_str}\n{self._print(node.body)}"
def _print_SympyAssignment(self, node):
printed_lhs = self.sympy_printer.doprint(node.lhs)
printed_rhs = self.sympy_printer.doprint(node.rhs)
if node.is_declaration:
data_type = "const " + str(node.lhs.dtype) + " " if node.is_const else str(node.lhs.dtype) + " "
return "%s%s = %s;" % (data_type, self.sympy_printer.doprint(node.lhs),
self.sympy_printer.doprint(node.rhs))
if node.use_auto:
data_type = 'auto'
else:
data_type = self._print(node.lhs.dtype).replace(' const', '')
if node.is_const:
data_type = f'const {data_type}'
return f"{data_type} {printed_lhs} = {printed_rhs};"
else:
lhs_type = get_type_of_expression(node.lhs)
if type(lhs_type) is VectorType and isinstance(node.lhs, cast_func):
arg, data_type, aligned, nontemporal = node.lhs.args
lhs_type = get_type_of_expression(node.lhs) # TOOD: this should have been typed
printed_mask = ""
if type(lhs_type) is VectorType and isinstance(node.lhs, CastFunc):
arg, data_type, aligned, nontemporal, mask, stride = node.lhs.args
instr = 'storeU'
if aligned:
instr = 'stream' if nontemporal else 'storeA'
if nontemporal and 'storeA' not in self._vector_instruction_set and \
'stream' in self._vector_instruction_set:
instr = 'stream'
elif aligned:
instr = 'stream' if nontemporal and 'stream' in self._vector_instruction_set else 'storeA'
if mask != True: # NOQA
instr = 'maskStream' if nontemporal and 'maskStream' in self._vector_instruction_set else \
'maskStoreA' if aligned else 'maskStoreU'
if instr not in self._vector_instruction_set:
if instr == 'maskStream' and 'stream' in self._vector_instruction_set:
store, load = 'stream', 'loadA'
elif (instr in ('maskStream', 'maskStoreA')) and 'storeA' in self._vector_instruction_set:
store, load = 'storeA', 'loadA'
else:
store, load = 'storeU', 'loadU'
load = load if load in self._vector_instruction_set else 'loadU'
self._vector_instruction_set[instr] = self._vector_instruction_set[store].format(
'{0}', self._vector_instruction_set['blendv'].format(
self._vector_instruction_set[load].format('{0}', **self._kwargs),
'{1}', '{2}', **self._kwargs), **self._kwargs)
printed_mask = self.sympy_printer.doprint(mask)
if data_type.base_type.c_name == 'double':
if self._vector_instruction_set['double'] == '__m256d':
printed_mask = f"_mm256_castpd_si256({printed_mask})"
elif self._vector_instruction_set['double'] == '__m128d':
printed_mask = f"_mm_castpd_si128({printed_mask})"
elif data_type.base_type.c_name == 'float':
if self._vector_instruction_set['float'] == '__m256':
printed_mask = f"_mm256_castps_si256({printed_mask})"
elif self._vector_instruction_set['float'] == '__m128':
printed_mask = f"_mm_castps_si128({printed_mask})"
rhs_type = get_type_of_expression(node.rhs)
if type(rhs_type) is not VectorType:
rhs = cast_func(node.rhs, VectorType(rhs_type))
raise ValueError(f'Cannot vectorize {node.rhs} of type {rhs_type} inside of the pretty printer! '
f'This should have happen earlier!')
# rhs = CastFunc(node.rhs, VectorType(rhs_type)) # Unknown width
else:
rhs = node.rhs
return self._vector_instruction_set[instr].format("&" + self.sympy_printer.doprint(node.lhs.args[0]),
self.sympy_printer.doprint(rhs)) + ';'
ptr = "&" + self.sympy_printer.doprint(node.lhs.args[0])
if stride != 1:
instr = ('maskStreamS' if nontemporal and 'maskStreamS' in self._vector_instruction_set else
'maskStoreS') if mask != True else \
('streamS' if nontemporal and 'streamS' in self._vector_instruction_set else 'storeS') # NOQA
return self._vector_instruction_set[instr].format(ptr, self.sympy_printer.doprint(rhs),
stride, printed_mask, **self._kwargs) + ';'
pre_code = ''
if nontemporal and 'cachelineZero' in self._vector_instruction_set and mask == True: # NOQA
first_cond = f"((uintptr_t) {ptr} & {CachelineSize.mask_symbol}) == 0"
offset = sp.Add(*[sp.Symbol(LoopOverCoordinate.get_loop_counter_name(i))
* node.lhs.args[0].field.spatial_strides[i] for i in
range(len(node.lhs.args[0].field.spatial_strides))])
if stride == 1:
offset = offset.subs({node.lhs.args[0].field.spatial_strides[0]: 1})
size = sp.Mul(*node.lhs.args[0].field.spatial_shape)
element_size = 8 if data_type.base_type.c_name == 'double' else 4
size_cond = f"({offset} + {CachelineSize.symbol/element_size}) < {size}"
pre_code = f"if ({first_cond} && {size_cond}) " + "{\n\t" + \
self._vector_instruction_set['cachelineZero'].format(ptr, **self._kwargs) + ';\n}\n'
code = self._vector_instruction_set[instr].format(ptr, self.sympy_printer.doprint(rhs),
printed_mask, **self._kwargs) + ';'
flushcond = f"((uintptr_t) {ptr} & {CachelineSize.mask_symbol}) == {CachelineSize.last_symbol}"
if nontemporal and 'flushCacheline' in self._vector_instruction_set:
code2 = self._vector_instruction_set['flushCacheline'].format(
ptr, self.sympy_printer.doprint(rhs), **self._kwargs) + ';'
code = f"{code}\nif ({flushcond}) {{\n\t{code2}\n}}"
elif aligned and nontemporal and 'storeAAndFlushCacheline' in self._vector_instruction_set:
lhs_hash = hashlib.sha1(self.sympy_printer.doprint(node.lhs).encode('ascii')).hexdigest()[:8]
rhs_hash = hashlib.sha1(self.sympy_printer.doprint(rhs).encode('ascii')).hexdigest()[:8]
tmpvar = f'_tmp_{lhs_hash}_{rhs_hash}'
code = 'const ' + self._print(node.lhs.dtype).replace(' const', '') + ' ' + tmpvar + ' = ' \
+ self.sympy_printer.doprint(rhs) + ';'
code1 = self._vector_instruction_set[instr].format(ptr, tmpvar, printed_mask, **self._kwargs) + ';'
maskStore, store, load = 'maskStoreAAndFlushCacheline', 'storeAAndFlushCacheline', 'loadA'
instr2 = maskStore if mask != True else store # NOQA
if instr2 not in self._vector_instruction_set:
self._vector_instruction_set[maskStore] = self._vector_instruction_set[store].format(
'{0}', self._vector_instruction_set['blendv'].format(
self._vector_instruction_set[load].format('{0}', **self._kwargs),
'{1}', '{2}', **self._kwargs),
**self._kwargs)
code2 = self._vector_instruction_set[instr2].format(ptr, tmpvar, printed_mask, **self._kwargs) + ';'
code += f"\nif ({flushcond}) {{\n\t{code2}\n}} else {{\n\t{code1}\n}}"
return pre_code + code
else:
return "%s = %s;" % (self.sympy_printer.doprint(node.lhs), self.sympy_printer.doprint(node.rhs))
return f"{printed_lhs} = {printed_rhs};"
def _print_NontemporalFence(self, _):
if 'streamFence' in self._vector_instruction_set:
return self._vector_instruction_set['streamFence'] + ';'
else:
return ''
def _print_CachelineSize(self, node):
if 'cachelineSize' in self._vector_instruction_set:
code = f'const size_t {node.symbol} = {self._vector_instruction_set["cachelineSize"]};\n'
code += f'const size_t {node.mask_symbol} = {node.symbol} - 1;\n'
vectorsize = self._vector_instruction_set['bytes']
code += f'const size_t {node.last_symbol} = {node.symbol} - {vectorsize};\n'
return code
else:
return ''
def _print_TemporaryMemoryAllocation(self, node):
align = 64
if self._vector_instruction_set:
align = self._vector_instruction_set['bytes']
else:
align = node.symbol.dtype.base_type.numpy_dtype.itemsize
np_dtype = node.symbol.dtype.base_type.numpy_dtype
required_size = np_dtype.itemsize * node.size + align
size = modulo_ceil(required_size, align)
code = "{dtype} {name}=({dtype})aligned_alloc({align}, {size}) + {offset};"
code = "#if defined(_MSC_VER)\n"
code += "{dtype} {name}=({dtype})_aligned_malloc({size}, {align}) + {offset};\n"
code += "#elif __cplusplus >= 201703L || __STDC_VERSION__ >= 201112L\n"
code += "{dtype} {name}=({dtype})aligned_alloc({align}, {size}) + {offset};\n"
code += "#else\n"
code += "{dtype} {name};\n"
code += "posix_memalign((void**) &{name}, {align}, {size});\n"
code += "{name} += {offset};\n"
code += "#endif"
return code.format(dtype=node.symbol.dtype,
name=self.sympy_printer.doprint(node.symbol.name),
size=self.sympy_printer.doprint(size),
......@@ -234,54 +394,46 @@ class CBackend:
align=align)
def _print_TemporaryMemoryFree(self, node):
align = 64
return "free(%s - %d);" % (self.sympy_printer.doprint(node.symbol.name), node.offset(align))
if self._vector_instruction_set:
align = self._vector_instruction_set['bytes']
else:
align = node.symbol.dtype.base_type.numpy_dtype.itemsize
code = "#if defined(_MSC_VER)\n"
code += "_aligned_free(%s - %d);\n" % (self.sympy_printer.doprint(node.symbol.name), node.offset(align))
code += "#else\n"
code += "free(%s - %d);\n" % (self.sympy_printer.doprint(node.symbol.name), node.offset(align))
code += "#endif"
return code
def _print_SkipIteration(self, _):
if self._dialect == 'cuda':
return "return;"
else:
return "continue;"
return "continue;"
def _print_CustomCodeNode(self, node):
return node.get_code(self._dialect, self._vector_instruction_set)
return node.get_code(self._dialect, self._vector_instruction_set, print_arg=self.sympy_printer._print)
def _print_SourceCodeComment(self, node):
return f"/* {node.text } */"
def _print_EmptyLine(self, node):
return ""
def _print_Conditional(self, node):
if type(node.condition_expr) is BooleanTrue:
return self._print_Block(node.true_block)
elif type(node.condition_expr) is BooleanFalse:
return self._print_Block(node.false_block)
cond_type = get_type_of_expression(node.condition_expr)
if isinstance(cond_type, VectorType):
raise ValueError("Problem with Conditional inside vectorized loop - use vec_any or vec_all")
condition_expr = self.sympy_printer.doprint(node.condition_expr)
true_block = self._print_Block(node.true_block)
result = "if (%s)\n%s " % (condition_expr, true_block)
result = f"if ({condition_expr})\n{true_block} "
if node.false_block:
false_block = self._print_Block(node.false_block)
result += "else " + false_block
result += f"else {false_block}"
return result
def _print_DestructuringBindingsForFieldClass(self, node: Node):
# Define all undefined symbols
undefined_field_symbols = node.symbols_defined
destructuring_bindings = ["%s = %s.%s%s;" %
(u.name,
u.field_name if hasattr(u, 'field_name') else u.field_names[0],
DestructuringBindingsForFieldClass.CLASS_TO_MEMBER_DICT[u.__class__],
"" if type(u) == FieldPointerSymbol else ("[%i]" % u.coordinate))
for u in undefined_field_symbols
]
destructuring_bindings.sort() # only for code aesthetics
template = jinja2.Template(
"""{
{% for binding in bindings -%}
{{ binding | indent(3) }}
{% endfor -%}
{{ block | indent(3) }}
}
""")
code = template.render(bindings=destructuring_bindings,
block=self._print(node.body))
return code
# ------------------------------------------ Helper function & classes -------------------------------------------------
......@@ -289,27 +441,33 @@ class CBackend:
# noinspection PyPep8Naming
class CustomSympyPrinter(CCodePrinter):
def __init__(self, dialect):
def __init__(self):
super(CustomSympyPrinter, self).__init__()
self._float_type = create_type("float32")
self._dialect = dialect
if 'Min' in self.known_functions:
del self.known_functions['Min']
if 'Max' in self.known_functions:
del self.known_functions['Max']
def _print_Pow(self, expr):
"""Don't use std::pow function, for small integer exponents, write as multiplication"""
if expr.exp.is_integer and expr.exp.is_number and 0 < expr.exp < 8:
return "(" + self._print(sp.Mul(*[expr.base] * expr.exp, evaluate=False)) + ")"
elif expr.exp.is_integer and expr.exp.is_number and - 8 < expr.exp < 0:
return "1 / ({})".format(self._print(sp.Mul(*[expr.base] * (-expr.exp), evaluate=False)))
# Ideally the printer has as little logic as possible. Therefore,
# powers should be rewritten as `DivFunc`s / unevaluated `Mul`s before
# printing. `NodeCollection` offers a convenience function to do just
# that. However, `cut_loops` rewrites unevaluated multiplications as
# `Pow`s again. Neither `deepcopy` nor `func(*args)` are suited to
# rebuild unevaluated expressions. Therefore, as long as we stick with
# SymPy, this is the only way to avoid printing `pow`s.
exp = expr.exp.expr if isinstance(expr.exp, CastFunc) else expr.exp
one_type = expr.base.dtype if hasattr(expr.base, "dtype") else get_type_of_expression(expr.base)
if exp.is_integer and exp.is_number and (0 < exp <= 8):
return f"({self._print(sp.Mul(*[expr.base] * exp, evaluate=False))})"
elif exp.is_integer and exp.is_number and (-8 <= exp < 0):
return f"{self._typed_number(1, one_type)} / ({self._print(sp.Mul(*([expr.base] * -exp), evaluate=False))})"
else:
return super(CustomSympyPrinter, self)._print_Pow(expr)
# TODO don't print ones in sp.Mul
def _print_Rational(self, expr):
"""Evaluate all rationals i.e. print 0.25 instead of 1.0/4.0"""
res = str(expr.evalf().num)
res = str(expr.evalf(17))
return res
def _print_Equality(self, expr):
......@@ -321,6 +479,15 @@ class CustomSympyPrinter(CCodePrinter):
result = super(CustomSympyPrinter, self)._print_Piecewise(expr)
return result.replace("\n", "")
def _print_Abs(self, expr):
if expr.args[0].is_integer:
return f'abs({self._print(expr.args[0])})'
else:
return f'fabs({self._print(expr.args[0])})'
def _print_AbstractType(self, node):
return str(node)
def _print_Function(self, expr):
infix_functions = {
bitwise_xor: '^',
......@@ -331,66 +498,113 @@ class CustomSympyPrinter(CCodePrinter):
}
if hasattr(expr, 'to_c'):
return expr.to_c(self._print)
if isinstance(expr, reinterpret_cast_func):
if isinstance(expr, ReinterpretCastFunc):
arg, data_type = expr.args
return "*((%s)(& %s))" % (PointerType(data_type, restrict=False), self._print(arg))
elif isinstance(expr, address_of):
if isinstance(data_type, PointerType):
const_str = "const" if data_type.const else ""
return f"(({const_str} {self._print(data_type.base_type)} *)(& {self._print(arg)}))"
else:
return f"*(({self._print(PointerType(data_type, restrict=False))})(& {self._print(arg)}))"
elif isinstance(expr, AddressOf):
assert len(expr.args) == 1, "address_of must only have one argument"
return "&(%s)" % self._print(expr.args[0])
elif isinstance(expr, cast_func):
return f"&({self._print(expr.args[0])})"
elif isinstance(expr, CastFunc):
cast = "(({data_type})({code}))"
arg, data_type = expr.args
if isinstance(arg, sp.Number):
if arg.is_Number and not isinstance(arg, (sp.core.numbers.Infinity, sp.core.numbers.NegativeInfinity)):
return self._typed_number(arg, data_type)
elif isinstance(arg, (InverseTrigonometricFunction, TrigonometricFunction, HyperbolicFunction)) \
and data_type == BasicType('float32'):
known = self.known_functions[arg.__class__.__name__.lower()]
code = self._print(arg)
return code.replace(known, f"{known}f")
elif isinstance(arg, (sp.Pow, sp.exp)) and data_type == BasicType('float32'):
known = ['sqrt', 'cbrt', 'pow', 'exp']
code = self._print(arg)
for k in known:
if k in code:
return code.replace(k, f'{k}f')
# Powers of small integers are printed as divisions/multiplications.
if '/' in code or '*' in code:
return cast.format(data_type=data_type, code=code)
raise ValueError(f"{code} doesn't give {known=} function back.")
else:
return "((%s)(%s))" % (data_type, self._print(arg))
return cast.format(data_type=data_type, code=self._print(arg))
elif isinstance(expr, fast_division):
if self._dialect == "cuda":
return "__fdividef(%s, %s)" % tuple(self._print(a) for a in expr.args)
else:
return "({})".format(self._print(expr.args[0] / expr.args[1]))
raise ValueError("fast_division is only supported for Taget.GPU")
elif isinstance(expr, fast_sqrt):
if self._dialect == "cuda":
return "__fsqrt_rn(%s)" % tuple(self._print(a) for a in expr.args)
else:
return "({})".format(self._print(sp.sqrt(expr.args[0])))
raise ValueError("fast_sqrt is only supported for Taget.GPU")
elif isinstance(expr, fast_inv_sqrt):
raise ValueError("fast_inv_sqrt is only supported for Taget.GPU")
elif isinstance(expr, vec_any) or isinstance(expr, vec_all):
return self._print(expr.args[0])
elif isinstance(expr, fast_inv_sqrt):
if self._dialect == "cuda":
return "__frsqrt_rn(%s)" % tuple(self._print(a) for a in expr.args)
elif isinstance(expr, sp.Abs):
return f"abs({self._print(expr.args[0])})"
elif isinstance(expr, sp.Mod):
if expr.args[0].is_integer and expr.args[1].is_integer:
return f"({self._print(expr.args[0])} % {self._print(expr.args[1])})"
else:
return "({})".format(self._print(1 / sp.sqrt(expr.args[0])))
return f"fmod({self._print(expr.args[0])}, {self._print(expr.args[1])})"
elif expr.func in infix_functions:
return "(%s %s %s)" % (self._print(expr.args[0]), infix_functions[expr.func], self._print(expr.args[1]))
return f"({self._print(expr.args[0])} {infix_functions[expr.func]} {self._print(expr.args[1])})"
elif expr.func == int_power_of_2:
return "(1 << (%s))" % (self._print(expr.args[0]))
return f"(1 << ({self._print(expr.args[0])}))"
elif expr.func == int_div:
return "((%s) / (%s))" % (self._print(expr.args[0]), self._print(expr.args[1]))
return f"(({self._print(expr.args[0])}) / ({self._print(expr.args[1])}))"
elif expr.func == DivFunc:
return f'(({self._print(expr.divisor)}) / ({self._print(expr.dividend)}))'
else:
return super(CustomSympyPrinter, self)._print_Function(expr)
name = expr.name if hasattr(expr, 'name') else expr.__class__.__name__
arg_str = ', '.join(self._print(a) for a in expr.args)
return f'{name}({arg_str})'
def _typed_number(self, number, dtype):
res = self._print(number)
if dtype.is_float():
if dtype == self._float_type:
if '.' not in res:
res += ".0f"
else:
res += "f"
return res
if dtype.numpy_dtype == np.float32:
return res + '.0f' if '.' not in res else res + 'f'
elif dtype.numpy_dtype == np.float64:
return res + '.0' if '.' not in res else res
elif dtype.is_int():
tokens = res.split('.')
if len(tokens) == 1:
return res
elif int(tokens[1]) != 0:
raise ValueError(f"Cannot print non-integer number {res} as an integer.")
else:
return tokens[0]
else:
return res
_print_Max = C89CodePrinter._print_Max
_print_Min = C89CodePrinter._print_Min
def _print_ConditionalFieldAccess(self, node):
return self._print(sp.Piecewise((node.outofbounds_value, node.outofbounds_condition), (node.access, True)))
def _print_Max(self, expr):
def inner_print_max(args):
if len(args) == 1:
return self._print(args[0])
half = len(args) // 2
a = inner_print_max(args[:half])
b = inner_print_max(args[half:])
return f"(({a} > {b}) ? {a} : {b})"
return inner_print_max(expr.args)
def _print_Min(self, expr):
def inner_print_min(args):
if len(args) == 1:
return self._print(args[0])
half = len(args) // 2
a = inner_print_min(args[:half])
b = inner_print_min(args[half:])
return f"(({a} < {b}) ? {a} : {b})"
return inner_print_min(expr.args)
# noinspection PyPep8Naming
class VectorizedCustomSympyPrinter(CustomSympyPrinter):
SummandInfo = namedtuple("SummandInfo", ['sign', 'term'])
def __init__(self, instruction_set, dialect):
super(VectorizedCustomSympyPrinter, self).__init__(dialect=dialect)
def __init__(self, instruction_set):
super(VectorizedCustomSympyPrinter, self).__init__()
self.instruction_set = instruction_set
def _scalarFallback(self, func_name, expr, *args, **kwargs):
......@@ -401,41 +615,113 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
assert self.instruction_set['width'] == expr_type.width
return None
def _print_Abs(self, expr):
if isinstance(get_type_of_expression(expr), (VectorType, VectorMemoryAccess)):
return self.instruction_set['abs'].format(self._print(expr.args[0]), **self._kwargs)
return super()._print_Abs(expr)
def _typed_vectorized_number(self, expr, data_type):
basic_data_type = data_type.base_type
number = self._typed_number(expr, basic_data_type)
instruction = 'makeVecConst'
if basic_data_type.is_bool():
instruction = 'makeVecConstBool'
# TODO Vectorization Revamp: is int, or sint, or uint (my guess is sint)
elif basic_data_type.is_int():
instruction = 'makeVecConstInt'
return self.instruction_set[instruction].format(number, **self._kwargs)
def _typed_vectorized_symbol(self, expr, data_type):
if not isinstance(expr, TypedSymbol):
raise ValueError(f'{expr} is not a TypeSymbol. It is {expr.type=}')
basic_data_type = data_type.base_type
symbol = self._print(expr)
if basic_data_type != expr.dtype:
symbol = f'(({basic_data_type})({symbol}))'
instruction = 'makeVecConst'
if basic_data_type.is_bool():
instruction = 'makeVecConstBool'
# TODO Vectorization Revamp: is int, or sint, or uint (my guess is sint)
elif basic_data_type.is_int():
instruction = 'makeVecConstInt'
return self.instruction_set[instruction].format(symbol, **self._kwargs)
def _print_CastFunc(self, expr):
arg, data_type = expr.args
if type(data_type) is VectorType:
base_type = data_type.base_type
# vector_memory_access is a cast_func itself so it should't be directly inside a cast_func
assert not isinstance(arg, VectorMemoryAccess)
if isinstance(arg, sp.Tuple):
is_boolean = get_type_of_expression(arg[0]) == create_type("bool")
is_integer = get_type_of_expression(arg[0]) == create_type("int")
printed_args = [self._print(a) for a in arg]
instruction = 'makeVecBool' if is_boolean else 'makeVecInt' if is_integer else 'makeVec'
if instruction == 'makeVecInt' and 'makeVecIndex' in self.instruction_set:
increments = np.array(arg)[1:] - np.array(arg)[:-1]
if len(set(increments)) == 1:
return self.instruction_set['makeVecIndex'].format(printed_args[0], increments[0],
**self._kwargs)
return self.instruction_set[instruction].format(*printed_args, **self._kwargs)
else:
if arg.is_Number and not isinstance(arg, (sp.core.numbers.Infinity, sp.core.numbers.NegativeInfinity)):
return self._typed_vectorized_number(arg, data_type)
elif isinstance(arg, TypedSymbol):
return self._typed_vectorized_symbol(arg, data_type)
elif isinstance(arg, (InverseTrigonometricFunction, TrigonometricFunction, HyperbolicFunction)) \
and base_type == BasicType('float32'):
raise NotImplementedError('Vectorizer is not tested for trigonometric functions yet')
# known = self.known_functions[arg.__class__.__name__.lower()]
# code = self._print(arg)
# return code.replace(known, f"{known}f")
elif isinstance(arg, sp.Pow):
if base_type == BasicType('float32') or base_type == BasicType('float64'):
return self._print_Pow(arg)
else:
raise NotImplementedError('Integer Pow is not implemented')
elif isinstance(arg, sp.UnevaluatedExpr):
return self._print(arg.args[0])
else:
raise NotImplementedError('Vectorizer cannot cast between different datatypes')
# to_type = self.instruction_set['suffix'][data_type.base_type.c_name]
# from_type = self.instruction_set['suffix'][get_type_of_expression(arg).base_type.c_name]
# return self.instruction_set['cast'].format(from_type, to_type, self._print(arg))
else:
return self._scalarFallback('_print_Function', expr)
# raise ValueError(f'Non VectorType cast "{data_type}" in vectorized code.')
def _print_Function(self, expr):
if isinstance(expr, vector_memory_access):
arg, data_type, aligned, _ = expr.args
if isinstance(expr, VectorMemoryAccess):
arg, data_type, aligned, _, mask, stride = expr.args
if stride != 1:
return self.instruction_set['loadS'].format(f"& {self._print(arg)}", stride, **self._kwargs)
instruction = self.instruction_set['loadA'] if aligned else self.instruction_set['loadU']
return instruction.format("& " + self._print(arg))
elif isinstance(expr, cast_func):
arg, data_type = expr.args
if type(data_type) is VectorType:
return self.instruction_set['makeVec'].format(self._print(arg))
elif expr.func == fast_division:
return instruction.format(f"& {self._print(arg)}", **self._kwargs)
elif expr.func == DivFunc:
result = self._scalarFallback('_print_Function', expr)
if not result:
result = self.instruction_set['/'].format(self._print(expr.args[0]), self._print(expr.args[1]))
result = self.instruction_set['/'].format(self._print(expr.divisor), self._print(expr.dividend),
**self._kwargs)
return result
elif expr.func == fast_sqrt:
return "({})".format(self._print(sp.sqrt(expr.args[0])))
elif expr.func == fast_inv_sqrt:
result = self._scalarFallback('_print_Function', expr)
if not result:
if self.instruction_set['rsqrt']:
return self.instruction_set['rsqrt'].format(self._print(expr.args[0]))
else:
return "({})".format(self._print(1 / sp.sqrt(expr.args[0])))
elif isinstance(expr, vec_any):
expr_type = get_type_of_expression(expr.args[0])
if type(expr_type) is not VectorType:
return self._print(expr.args[0])
else:
return self.instruction_set['any'].format(self._print(expr.args[0]))
elif isinstance(expr, vec_all):
elif isinstance(expr, fast_division):
raise ValueError("fast_division is only supported for Taget.GPU")
elif isinstance(expr, fast_sqrt):
raise ValueError("fast_sqrt is only supported for Taget.GPU")
elif isinstance(expr, fast_inv_sqrt):
raise ValueError("fast_inv_sqrt is only supported for Taget.GPU")
elif isinstance(expr, vec_any) or isinstance(expr, vec_all):
instr = 'any' if isinstance(expr, vec_any) else 'all'
expr_type = get_type_of_expression(expr.args[0])
if type(expr_type) is not VectorType:
return self._print(expr.args[0])
else:
return self.instruction_set['all'].format(self._print(expr.args[0]))
if isinstance(expr.args[0], sp.Rel):
op = expr.args[0].rel_op
if (instr, op) in self.instruction_set:
return self.instruction_set[(instr, op)].format(*[self._print(a) for a in expr.args[0].args],
**self._kwargs)
return self.instruction_set[instr].format(self._print(expr.args[0]), **self._kwargs)
return super(VectorizedCustomSympyPrinter, self)._print_Function(expr)
......@@ -448,7 +734,7 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
assert len(arg_strings) > 0
result = arg_strings[0]
for item in arg_strings[1:]:
result = self.instruction_set['&'].format(result, item)
result = self.instruction_set['&'].format(result, item, **self._kwargs)
return result
def _print_Or(self, expr):
......@@ -460,16 +746,31 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
assert len(arg_strings) > 0
result = arg_strings[0]
for item in arg_strings[1:]:
result = self.instruction_set['|'].format(result, item)
result = self.instruction_set['|'].format(result, item, **self._kwargs)
return result
def _print_Add(self, expr, order=None):
result = self._scalarFallback('_print_Add', expr)
try:
result = self._scalarFallback('_print_Add', expr)
except Exception:
result = None
if result:
return result
args = expr.args
# special treatment for all-integer args, for loop index arithmetic until we have proper int vectorization
suffix = ""
if all([(type(e) is CastFunc and str(e.dtype) == self.instruction_set['int']) or isinstance(e, sp.Integer)
or (type(e) is TypedSymbol and isinstance(e.dtype, BasicType) and e.dtype.is_int()) for e in args]):
dtype = set([e.dtype for e in args if type(e) is CastFunc])
assert len(dtype) == 1
dtype = dtype.pop()
args = [CastFunc(e, dtype) if (isinstance(e, sp.Integer) or isinstance(e, TypedSymbol)) else e
for e in args]
suffix = "int"
summands = []
for term in expr.args:
for term in args:
if term.func == sp.Mul:
sign, t = self._print_Mul(term, inside_add=True)
else:
......@@ -485,30 +786,36 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
assert len(summands) >= 2
processed = summands[0].term
for summand in summands[1:]:
func = self.instruction_set['-'] if summand.sign == -1 else self.instruction_set['+']
processed = func.format(processed, summand.term)
func = self.instruction_set['-' + suffix] if summand.sign == -1 else self.instruction_set['+' + suffix]
processed = func.format(processed, summand.term, **self._kwargs)
return processed
def _print_Pow(self, expr):
result = self._scalarFallback('_print_Pow', expr)
# Due to loop cutting sp.Mul is evaluated again.
try:
result = self._scalarFallback('_print_Pow', expr)
except ValueError:
result = None
if result:
return result
one = self.instruction_set['makeVec'].format(1.0)
if expr.exp.is_integer and expr.exp.is_number and 0 < expr.exp < 8:
return "(" + self._print(sp.Mul(*[expr.base] * expr.exp, evaluate=False)) + ")"
elif expr.exp == -1:
one = self.instruction_set['makeVec'].format(1.0)
return self.instruction_set['/'].format(one, self._print(expr.base))
elif expr.exp == 0.5:
return self.instruction_set['sqrt'].format(self._print(expr.base))
elif expr.exp == -0.5:
root = self.instruction_set['sqrt'].format(self._print(expr.base))
return self.instruction_set['/'].format(one, root)
elif expr.exp.is_integer and expr.exp.is_number and - 8 < expr.exp < 0:
return self.instruction_set['/'].format(one,
self._print(sp.Mul(*[expr.base] * (-expr.exp), evaluate=False)))
one = self.instruction_set['makeVecConst'].format(1.0, **self._kwargs)
root = self.instruction_set['sqrt'].format(self._print(expr.base), **self._kwargs)
if isinstance(expr.exp, CastFunc) and expr.exp.args[0].is_number:
exp = expr.exp.args[0]
else:
exp = expr.exp
# TODO the printer should not have any intelligence like this.
# TODO To remove all of these cases the vectoriser needs to be reworked. See loop cutting
if exp.is_integer and exp.is_number and 0 < exp < 8:
return self._print(sp.Mul(*[expr.base] * exp, evaluate=False))
elif exp == 0.5:
return root
elif exp == -0.5:
return self.instruction_set['/'].format(one, root, **self._kwargs)
else:
raise ValueError("Generic exponential not supported: " + str(expr))
......@@ -516,7 +823,10 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
# noinspection PyProtectedMember
from sympy.core.mul import _keep_coeff
result = self._scalarFallback('_print_Mul', expr)
if not inside_add:
result = self._scalarFallback('_print_Mul', expr)
else:
result = None
if result:
return result
......@@ -547,19 +857,19 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
result = a_str[0]
for item in a_str[1:]:
result = self.instruction_set['*'].format(result, item)
result = self.instruction_set['*'].format(result, item, **self._kwargs)
if len(b) > 0:
denominator_str = b_str[0]
for item in b_str[1:]:
denominator_str = self.instruction_set['*'].format(denominator_str, item)
result = self.instruction_set['/'].format(result, denominator_str)
denominator_str = self.instruction_set['*'].format(denominator_str, item, **self._kwargs)
result = self.instruction_set['/'].format(result, denominator_str, **self._kwargs)
if inside_add:
return sign, result
else:
if sign < 0:
return self.instruction_set['*'].format(self._print(S.NegativeOne), result)
return self.instruction_set['*'].format(self._print(S.NegativeOne), result, **self._kwargs)
else:
return result
......@@ -567,13 +877,13 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
result = self._scalarFallback('_print_Relational', expr)
if result:
return result
return self.instruction_set[expr.rel_op].format(self._print(expr.lhs), self._print(expr.rhs))
return self.instruction_set[expr.rel_op].format(self._print(expr.lhs), self._print(expr.rhs), **self._kwargs)
def _print_Equality(self, expr):
result = self._scalarFallback('_print_Equality', expr)
if result:
return result
return self.instruction_set['=='].format(self._print(expr.lhs), self._print(expr.rhs))
return self.instruction_set['=='].format(self._print(expr.lhs), self._print(expr.rhs), **self._kwargs)
def _print_Piecewise(self, expr):
result = self._scalarFallback('_print_Piecewise', expr)
......@@ -591,13 +901,11 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
result = self._print(expr.args[-1][0])
for true_expr, condition in reversed(expr.args[:-1]):
if isinstance(condition, cast_func) and get_type_of_expression(condition.args[0]) == create_type("bool"):
if not KERNCRAFT_NO_TERNARY_MODE:
result = "(({}) ? ({}) : ({}))".format(self._print(condition.args[0]), self._print(true_expr),
result)
else:
print("Warning - skipping ternary op")
if isinstance(condition, CastFunc) and get_type_of_expression(condition.args[0]) == create_type("bool"):
result = "(({}) ? ({}) : ({}))".format(self._print(condition.args[0]), self._print(true_expr),
result, **self._kwargs)
else:
# noinspection SpellCheckingInspection
result = self.instruction_set['blendv'].format(result, self._print(true_expr), self._print(condition))
result = self.instruction_set['blendv'].format(result, self._print(true_expr), self._print(condition),
**self._kwargs)
return result
src/pystencils/backends/cuda_backend.py 0 → 100644
View file @ 5600b6b6
from pystencils.astnodes import Node
from pystencils.backends.cbackend import CBackend, CustomSympyPrinter, generate_c
from pystencils.enums import Backend
from pystencils.fast_approximation import fast_division, fast_inv_sqrt, fast_sqrt
def generate_cuda(ast_node: Node, signature_only: bool = False, custom_backend=None, with_globals=True) -> str:
"""Prints an abstract syntax tree node as CUDA code.
Args:
ast_node: ast representation of kernel
signature_only: generate signature without function body
custom_backend: use own custom printer for code generation
with_globals: enable usage of global variables
Returns:
CUDA code for the ast node and its descendants
"""
return generate_c(ast_node, signature_only, dialect=Backend.CUDA,
custom_backend=custom_backend, with_globals=with_globals)
class CudaBackend(CBackend):
def __init__(self, sympy_printer=None,
signature_only=False):
if not sympy_printer:
sympy_printer = CudaSympyPrinter()
super().__init__(sympy_printer, signature_only, dialect=Backend.CUDA)
def _print_SharedMemoryAllocation(self, node):
dtype = node.symbol.dtype
name = self.sympy_printer.doprint(node.symbol.name)
num_elements = '*'.join([str(s) for s in node.shared_mem.shape])
code = f"__shared__ {dtype} {name}[{num_elements}];"
return code
@staticmethod
def _print_ThreadBlockSynchronization(_):
return "__synchtreads();"
def _print_TextureDeclaration(self, node):
cond = node.texture.field.dtype.numpy_dtype.itemsize > 4
return f'texture<{"fp_tex_" if cond else ""}{str(node.texture.field.dtype)}, ' \
f'cudaTextureType{node.texture.field.spacial_dimensions}D, cudaReadModeElementType> {node.texture};'
def _print_SkipIteration(self, _):
return "return;"
class CudaSympyPrinter(CustomSympyPrinter):
language = "CUDA"
def __init__(self):
super(CudaSympyPrinter, self).__init__()
def _print_Function(self, expr):
if isinstance(expr, fast_division):
assert len(expr.args) == 2, f"__fdividef has two arguments, but {len(expr.args)} where given"
return f"__fdividef({self._print(expr.args[0])}, {self._print(expr.args[1])})"
elif isinstance(expr, fast_sqrt):
assert len(expr.args) == 1, f"__fsqrt_rn has one argument, but {len(expr.args)} where given"
return f"__fsqrt_rn({self._print(expr.args[0])})"
elif isinstance(expr, fast_inv_sqrt):
assert len(expr.args) == 1, f"__frsqrt_rn has one argument, but {len(expr.args)} where given"
return f"__frsqrt_rn({self._print(expr.args[0])})"
return super()._print_Function(expr)
pystencils/backends/dot.py → src/pystencils/backends/dot.py
View file @ 5600b6b6
import graphviz
from graphviz import Digraph, lang
try:
from graphviz import Digraph
import graphviz.quoting as quote
except ImportError:
from graphviz import Digraph
import graphviz.lang as quote
from sympy.printing.printer import Printer
......@@ -12,7 +17,7 @@ class DotPrinter(Printer):
super(DotPrinter, self).__init__()
self._node_to_str_function = node_to_str_function
self.dot = Digraph(**kwargs)
self.dot.quote_edge = lang.quote
self.dot.quote_edge = quote.quote
def _print_KernelFunction(self, func):
self.dot.node(str(id(func)), style='filled', fillcolor='#a056db', label=self._node_to_str_function(func))
......@@ -50,22 +55,20 @@ class DotPrinter(Printer):
def __shortened(node):
from pystencils.astnodes import LoopOverCoordinate, KernelFunction, SympyAssignment, Block, Conditional
from pystencils.astnodes import LoopOverCoordinate, KernelFunction, SympyAssignment, Conditional
if isinstance(node, LoopOverCoordinate):
return "Loop over dim %d" % (node.coordinate_to_loop_over,)
elif isinstance(node, KernelFunction):
params = node.get_parameters()
param_names = [p.field_name for p in params if p.is_field_pointer]
param_names += [p.symbol.name for p in params if not p.is_field_parameter]
return "Func: %s (%s)" % (node.function_name, ",".join(param_names))
return f"Func: {node.function_name} ({','.join(param_names)})"
elif isinstance(node, SympyAssignment):
return repr(node.lhs)
elif isinstance(node, Block):
return "Block" + str(id(node))
elif isinstance(node, Conditional):
return repr(node)
else:
raise NotImplementedError("Cannot handle node type %s" % (type(node),))
raise NotImplementedError(f"Cannot handle node type {type(node)}")
def print_dot(node, view=False, short=False, **kwargs):
......
src/pystencils/backends/json.py 0 → 100644
View file @ 5600b6b6
# -*- coding: utf-8 -*-
#
# Copyright © 2019 Stephan Seitz <stephan.seitz@fau.de>
#
# Distributed under terms of the GPLv3 license.
"""
"""
import json
from pystencils.astnodes import NodeOrExpr
from pystencils.backends.cbackend import CustomSympyPrinter, generate_c
try:
import yaml
except ImportError:
raise ImportError('yaml not installed')
def expr_to_dict(expr_or_node: NodeOrExpr, with_c_code=True, full_class_names=False):
"""Converts a SymPy expression to a serializable dict (mainly for debugging purposes)
The dict recursively contains all args of the expression as ``dict``s
See :func:`.write_json`
Args:
expr_or_node (NodeOrExpr): a SymPy expression or a :class:`pystencils.astnodes.Node`
with_c_code (bool, optional): include C representation of the nodes
full_class_names (bool, optional): use full class names (type(object) instead of ``type(object).__name__``
"""
self = {'str': str(expr_or_node)}
if with_c_code:
try:
self.update({'c': generate_c(expr_or_node)})
except Exception:
try:
self.update({'c': CustomSympyPrinter().doprint(expr_or_node)})
except Exception:
pass
for a in expr_or_node.args:
self.update({str(a.__class__ if full_class_names else a.__class__.__name__): expr_to_dict(a)})
return self
def print_json(expr_or_node: NodeOrExpr):
"""Print debug JSON of an AST to string
Args:
expr_or_node (NodeOrExpr): a SymPy expression or a :class:`pystencils.astnodes.Node`
Returns:
str: JSON representation of AST
"""
expr_or_node_dict = expr_to_dict(expr_or_node)
return json.dumps(expr_or_node_dict, indent=4)
def write_json(filename: str, expr_or_node: NodeOrExpr):
"""Writes debug JSON represenation of AST to file
Args:
filename (str): Path for the file to write
expr_or_node (NodeOrExpr): a SymPy expression or a :class:`pystencils.astnodes.Node`
"""
expr_or_node_dict = expr_to_dict(expr_or_node)
with open(filename, 'w') as f:
json.dump(expr_or_node_dict, f, indent=4)
def print_yaml(expr_or_node):
expr_or_node_dict = expr_to_dict(expr_or_node, full_class_names=False)
return yaml.dump(expr_or_node_dict)
def write_yaml(filename, expr_or_node):
expr_or_node_dict = expr_to_dict(expr_or_node)
with open(filename, 'w') as f:
yaml.dump(expr_or_node_dict, f)
src/pystencils/backends/ppc_instruction_sets.py 0 → 100644
View file @ 5600b6b6
def get_argument_string(function_shortcut):
args = function_shortcut[function_shortcut.index('[') + 1: -1]
arg_string = "("
for arg in args.split(","):
arg = arg.strip()
if not arg:
continue
if arg in ('0', '1', '2', '3', '4', '5'):
arg_string += "{" + arg + "},"
else:
arg_string += arg + ","
arg_string = arg_string[:-1] + ")"
return arg_string
def get_vector_instruction_set_ppc(data_type='double', instruction_set='vsx'):
if instruction_set != 'vsx':
raise NotImplementedError(instruction_set)
base_names = {
'+': 'add[0, 1]',
'-': 'sub[0, 1]',
'*': 'mul[0, 1]',
'/': 'div[0, 1]',
'sqrt': 'sqrt[0]',
'rsqrt': 'rsqrte[0]', # rsqrt is available too, but not on Clang
'loadU': 'xl[0x0, 0]',
'loadA': 'ld[0x0, 0]',
'storeU': 'xst[1, 0x0, 0]',
'storeA': 'st[1, 0x0, 0]',
'storeAAndFlushCacheline': 'stl[1, 0x0, 0]',
'abs': 'abs[0]',
'==': 'cmpeq[0, 1]',
'!=': 'cmpne[0, 1]',
'<=': 'cmple[0, 1]',
'<': 'cmplt[0, 1]',
'>=': 'cmpge[0, 1]',
'>': 'cmpgt[0, 1]',
'&': 'and[0, 1]',
'|': 'or[0, 1]',
'blendv': 'sel[0, 1, 2]',
('any', '=='): 'any_eq[0, 1]',
('any', '!='): 'any_ne[0, 1]',
('any', '<='): 'any_le[0, 1]',
('any', '<'): 'any_lt[0, 1]',
('any', '>='): 'any_ge[0, 1]',
('any', '>'): 'any_gt[0, 1]',
('all', '=='): 'all_eq[0, 1]',
('all', '!='): 'all_ne[0, 1]',
('all', '<='): 'all_le[0, 1]',
('all', '<'): 'all_lt[0, 1]',
('all', '>='): 'all_ge[0, 1]',
('all', '>'): 'all_gt[0, 1]',
}
bits = {'double': 64,
'float': 32,
'int': 32}
width = 128 // bits[data_type]
intwidth = 128 // bits['int']
result = dict()
result['bytes'] = 16
for intrinsic_id, function_shortcut in base_names.items():
function_shortcut = function_shortcut.strip()
name = function_shortcut[:function_shortcut.index('[')]
arg_string = get_argument_string(function_shortcut)
result[intrinsic_id] = 'vec_' + name + arg_string
if data_type == 'double':
# Clang and XL C++ are missing these for doubles
result['loadA'] = '(__vector double)' + result['loadA'].format('(float*) {0}')
result['storeA'] = result['storeA'].format('(float*) {0}', '(__vector float) {1}')
result['storeAAndFlushCacheline'] = result['storeAAndFlushCacheline'].format('(float*) {0}',
'(__vector float) {1}')
result['+int'] = "vec_add({0}, {1})"
result['width'] = width
result['intwidth'] = intwidth
result[data_type] = f'__vector {data_type}'
result['int'] = '__vector int'
result['bool'] = f'__vector __bool {"long long" if data_type == "double" else "int"}'
result['headers'] = ['<altivec.h>', '"ppc_altivec_helpers.h"']
result['makeVecConst'] = '((' + result[data_type] + '){{' + \
", ".join(['(' + data_type + ') {0}' for _ in range(width)]) + '}})'
result['makeVec'] = '((' + result[data_type] + '){{' + \
", ".join(['{' + data_type + '} {' + str(i) + '}' for i in range(width)]) + '}})'
result['makeVecConstInt'] = '((' + result['int'] + '){{' + ", ".join(['(int) {0}' for _ in range(intwidth)]) + '}})'
result['makeVecInt'] = '((' + result['int'] + '){{(int) {0}, (int) {1}, (int) {2}, (int) {3}}})'
result['any'] = 'vec_any_ne({0}, ((' + result['bool'] + ') {{' + ", ".join(['0'] * width) + '}}))'
result['all'] = 'vec_all_ne({0}, ((' + result['bool'] + ') {{' + ", ".join(['0'] * width) + '}}))'
result['cachelineSize'] = 'cachelineSize()'
result['cachelineZero'] = 'cachelineZero((void*) {0})'
return result
src/pystencils/backends/riscv_instruction_sets.py 0 → 100644
View file @ 5600b6b6
from pystencils.typing import CFunction
def get_argument_string(function_shortcut, last=''):
args = function_shortcut[function_shortcut.index('[') + 1: -1]
arg_string = "("
for arg in args.split(","):
arg = arg.strip()
if not arg:
continue
if arg in ('0', '1', '2', '3', '4', '5'):
arg_string += "{" + arg + "},"
else:
arg_string += arg + ","
if last:
arg_string += last + ','
arg_string = arg_string[:-1] + ")"
return arg_string
def get_vector_instruction_set_riscv(data_type='double', instruction_set='rvv'):
assert instruction_set == 'rvv'
bits = {'double': 64,
'float': 32,
'int': 32}
base_names = {
'+': 'fadd_vv[0, 1]',
'-': 'fsub_vv[0, 1]',
'*': 'fmul_vv[0, 1]',
'/': 'fdiv_vv[0, 1]',
'sqrt': 'fsqrt_v[0]',
'loadU': f'le{bits[data_type]}_v[0]',
'storeU': f'se{bits[data_type]}_v[0, 1]',
'maskStoreU': f'se{bits[data_type]}_v[2, 0, 1]',
'loadS': f'lse{bits[data_type]}_v[0, 1]',
'storeS': f'sse{bits[data_type]}_v[0, 2, 1]',
'maskStoreS': f'sse{bits[data_type]}_v[3, 0, 2, 1]',
'abs': 'fabs_v[0]',
'==': 'mfeq_vv[0, 1]',
'!=': 'mfne_vv[0, 1]',
'<=': 'mfle_vv[0, 1]',
'<': 'mflt_vv[0, 1]',
'>=': 'mfge_vv[0, 1]',
'>': 'mfgt_vv[0, 1]',
'&': 'mand_mm[0, 1]',
'|': 'mor_mm[0, 1]',
'blendv': 'merge_vvm[2, 0, 1]',
'any': 'cpop_m[0]',
'all': 'cpop_m[0]',
}
result = dict()
width = f'vsetvlmax_e{bits[data_type]}m1()'
intwidth = 'vsetvlmax_e{bits["int"]}m1()'
result['bytes'] = 'vsetvlmax_e8m1()'
prefix = 'v'
suffix = f'_f{bits[data_type]}m1'
vl = '{loop_stop} - {loop_counter}'
int_vl = f'({vl})*{bits[data_type]//bits["int"]}'
for intrinsic_id, function_shortcut in base_names.items():
function_shortcut = function_shortcut.strip()
name = function_shortcut[:function_shortcut.index('[')]
if name.startswith('mf'):
suffix2 = suffix + f'_b{bits[data_type]}'
elif name.endswith('_mm') or name.endswith('_m'):
suffix2 = f'_b{bits[data_type]}'
elif intrinsic_id.startswith('mask'):
suffix2 = suffix + '_m'
else:
suffix2 = suffix
arg_string = get_argument_string(function_shortcut, last=vl)
result[intrinsic_id] = prefix + name + suffix2 + arg_string
result['width'] = CFunction(width, "int")
result['intwidth'] = CFunction(intwidth, "int")
result['makeVecConst'] = f'vfmv_v_f_f{bits[data_type]}m1({{0}}, {vl})'
result['makeVecConstInt'] = f'vmv_v_x_i{bits["int"]}m1({{0}}, {int_vl})'
result['makeVecIndex'] = f'vmacc_vx_i{bits["int"]}m1({result["makeVecConstInt"]}, {{1}}, ' + \
f'vid_v_i{bits["int"]}m1({int_vl}), {int_vl})'
result['storeS'] = result['storeS'].replace('{2}', f'{{2}}*{bits[data_type]//8}')
result['loadS'] = result['loadS'].replace('{1}', f'{{1}}*{bits[data_type]//8}')
result['maskStoreS'] = result['maskStoreS'].replace('{2}', f'{{2}}*{bits[data_type]//8}')
result['+int'] = f"vadd_vv_i{bits['int']}m1({{0}}, {{1}}, {int_vl})"
result['float'] = f'vfloat{bits["float"]}m1_t'
result['double'] = f'vfloat{bits["double"]}m1_t'
result['int'] = f'vint{bits["int"]}m1_t'
result['bool'] = f'vbool{bits[data_type]}_t'
result['headers'] = ['<riscv_vector.h>', '"riscv_v_helpers.h"']
result['any'] += ' > 0x0'
result['all'] += f' == vsetvl_e{bits[data_type]}m1({vl})'
result['cachelineSize'] = 'cachelineSize()'
result['cachelineZero'] = 'cachelineZero((void*) {0})'
return result
src/pystencils/backends/simd_instruction_sets.py 0 → 100644
View file @ 5600b6b6
import os
import platform
from ctypes import CDLL, c_int, c_size_t, sizeof, byref
from warnings import warn
import numpy as np
from pystencils.backends.x86_instruction_sets import get_vector_instruction_set_x86
from pystencils.backends.arm_instruction_sets import get_vector_instruction_set_arm
from pystencils.backends.ppc_instruction_sets import get_vector_instruction_set_ppc
from pystencils.backends.riscv_instruction_sets import get_vector_instruction_set_riscv
from pystencils.cache import memorycache
from pystencils.typing import numpy_name_to_c
def get_vector_instruction_set(data_type='double', instruction_set='avx'):
if data_type == 'float':
warn(f"Ambiguous input for data_type: {data_type}. For single precision please use float32. "
f"For more information please take numpy.dtype as a reference. This input will not be supported in future "
f"releases")
data_type = 'float64'
type_name = numpy_name_to_c(np.dtype(data_type).name)
if instruction_set in ['neon', 'sme'] or instruction_set.startswith('sve'):
return get_vector_instruction_set_arm(type_name, instruction_set)
elif instruction_set in ['vsx']:
return get_vector_instruction_set_ppc(type_name, instruction_set)
elif instruction_set in ['rvv']:
return get_vector_instruction_set_riscv(type_name, instruction_set)
else:
return get_vector_instruction_set_x86(type_name, instruction_set)
@memorycache
def get_supported_instruction_sets():
"""List of supported instruction sets on current hardware, or None if query failed."""
if 'PYSTENCILS_SIMD' in os.environ:
return os.environ['PYSTENCILS_SIMD'].split(',')
if platform.system() == 'Darwin' and platform.machine() == 'arm64':
result = ['neon']
libc = CDLL('/usr/lib/libc.dylib')
value = c_int(0)
size = c_size_t(sizeof(value))
status = libc.sysctlbyname(b"hw.optional.arm.FEAT_SME", byref(value), byref(size), None, 0)
if status == 0 and value.value == 1:
result.insert(0, "sme")
return result
elif platform.system() == 'Windows' and platform.machine() == 'ARM64':
return ['neon']
elif platform.system() == 'Linux' and platform.machine() == 'aarch64':
result = ['neon'] # Neon is mandatory on 64-bit ARM
libc = CDLL('libc.so.6')
hwcap = libc.getauxval(16) # AT_HWCAP
hwcap2 = libc.getauxval(26) # AT_HWCAP2
if hwcap & (1 << 22): # HWCAP_SVE
if hwcap2 & (1 << 1): # HWCAP2_SVE2
name = 'sve2'
else:
name = 'sve'
length = 8 * libc.prctl(51, 0, 0, 0, 0) # PR_SVE_GET_VL
if length < 0:
raise OSError("SVE length query failed")
while length >= 128:
result.append(f"{name}{length}")
length //= 2
result.append(name)
if hwcap2 & (1 << 23): # HWCAP2_SME
result.insert(0, "sme") # prepend to list so it is not automatically chosen as best instruction set
return result
elif platform.system() == 'Linux' and platform.machine().startswith('riscv'):
libc = CDLL('libc.so.6')
hwcap = libc.getauxval(16) # AT_HWCAP
hwcap_isa_v = 1 << (ord('V') - ord('A')) # COMPAT_HWCAP_ISA_V
return ['rvv'] if hwcap & hwcap_isa_v else []
elif platform.system() == 'Linux' and platform.machine().startswith('ppc64'):
libc = CDLL('libc.so.6')
hwcap = libc.getauxval(16) # AT_HWCAP
return ['vsx'] if hwcap & 0x00000080 else [] # PPC_FEATURE_HAS_VSX
elif platform.machine() in ['x86_64', 'x86', 'AMD64', 'i386']:
try:
from cpuinfo import get_cpu_info
except ImportError:
return None
result = []
required_sse_flags = {'sse', 'sse2', 'ssse3', 'sse4_1', 'sse4_2'}
required_avx_flags = {'avx', 'avx2'}
required_avx512_flags = {'avx512f'}
possible_avx512vl_flags = {'avx512vl', 'avx10_1'}
flags = set(get_cpu_info()['flags'])
if flags.issuperset(required_sse_flags):
result.append("sse")
if flags.issuperset(required_avx_flags):
result.append("avx")
if flags.issuperset(required_avx512_flags):
result.append("avx512")
if not flags.isdisjoint(possible_avx512vl_flags):
result.append("avx512vl")
return result
else:
raise NotImplementedError('Instruction set detection for %s on %s is not implemented' %
(platform.system(), platform.machine()))
@memorycache
def get_cacheline_size(instruction_set):
"""Get the size (in bytes) of a cache block that can be zeroed without memory access.
Usually, this is identical to the cache line size."""
instruction_sets = get_vector_instruction_set('double', instruction_set)
if 'cachelineSize' not in instruction_sets:
return None
import pystencils as ps
from pystencils.astnodes import SympyAssignment
import numpy as np
from pystencils.cpu.vectorization import CachelineSize
arr = np.zeros((1, 1), dtype=np.float32)
f = ps.Field.create_from_numpy_array('f', arr, index_dimensions=0)
ass = [CachelineSize(), SympyAssignment(f.center, CachelineSize.symbol)]
ast = ps.create_kernel(ass, cpu_vectorize_info={'instruction_set': instruction_set})
kernel = ast.compile()
kernel(**{f.name: arr, CachelineSize.symbol.name: 0})
return int(arr[0, 0])
src/pystencils/backends/x86_instruction_sets.py 0 → 100644
View file @ 5600b6b6
def get_argument_string(intrinsic_id, width, function_shortcut):
if intrinsic_id == 'makeVecConst' or intrinsic_id == 'makeVecConstInt':
arg_string = f"({','.join(['{0}'] * width)})"
elif intrinsic_id == 'makeVec' or intrinsic_id == 'makeVecInt':
params = ["{" + str(i) + "}" for i in reversed(range(width))]
arg_string = f"({','.join(params)})"
elif intrinsic_id == 'makeVecBool':
params = [f"(({{{i}}} ? -1.0 : 0.0)" for i in reversed(range(width))]
arg_string = f"({','.join(params)})"
elif intrinsic_id == 'makeVecConstBool':
params = ["(({0}) ? -1.0 : 0.0)" for _ in range(width)]
arg_string = f"({','.join(params)})"
else:
args = function_shortcut[function_shortcut.index('[') + 1: -1]
arg_string = "("
for arg in args.split(","):
arg = arg.strip()
if not arg:
continue
if arg in ('0', '1', '2', '3', '4', '5'):
arg_string += "{" + arg + "},"
else:
arg_string += arg + ","
arg_string = arg_string[:-1] + ")"
return arg_string
def get_vector_instruction_set_x86(data_type='double', instruction_set='avx'):
comparisons = {
'==': '_CMP_EQ_UQ',
'!=': '_CMP_NEQ_UQ',
'>=': '_CMP_GE_OQ',
'<=': '_CMP_LE_OQ',
'<': '_CMP_NGE_UQ',
'>': '_CMP_NLE_UQ',
}
base_names = {
'+': 'add[0, 1]',
'-': 'sub[0, 1]',
'*': 'mul[0, 1]',
'/': 'div[0, 1]',
'&': 'and[0, 1]',
'|': 'or[0, 1]',
'blendv': 'blendv[0, 1, 2]',
'sqrt': 'sqrt[0]',
'makeVecConst': 'set[]',
'makeVec': 'set[]',
'makeVecBool': 'set[]',
'makeVecConstBool': 'set[]',
'makeVecInt': 'set[]',
'makeVecConstInt': 'set[]',
'loadU': 'loadu[0]',
'loadA': 'load[0]',
'storeU': 'storeu[0,1]',
'storeA': 'store[0,1]',
'stream': 'stream[0,1]',
'maskStoreA': 'mask_store[0, 2, 1]' if instruction_set.startswith('avx512') else 'maskstore[0, 2, 1]',
'maskStoreU': 'mask_storeu[0, 2, 1]' if instruction_set.startswith('avx512') else 'maskstore[0, 2, 1]',
}
for comparison_op, constant in comparisons.items():
base_names[comparison_op] = f'cmp[0, 1, {constant}]'
headers = {
'avx512': ['<immintrin.h>'],
'avx512vl': ['<immintrin.h>'],
'avx': ['<immintrin.h>'],
'sse': ['<immintrin.h>', '<xmmintrin.h>', '<emmintrin.h>', '<pmmintrin.h>',
'<tmmintrin.h>', '<smmintrin.h>', '<nmmintrin.h>']
}
suffix = {
'double': 'pd',
'float': 'ps',
'int': 'epi32'
}
prefix = {
'sse': '_mm',
'avx': '_mm256',
'avx512vl': '_mm256',
'avx512': '_mm512',
}
width = {
("double", "sse"): 2,
("float", "sse"): 4,
("int", "sse"): 4,
("double", "avx"): 4,
("float", "avx"): 8,
("int", "avx"): 8,
("double", "avx512vl"): 4,
("float", "avx512vl"): 8,
("int", "avx512vl"): 8,
("double", "avx512"): 8,
("float", "avx512"): 16,
("int", "avx512"): 16,
}
result = {
'width': width[(data_type, instruction_set)],
'intwidth': width[('int', instruction_set)],
'bytes': 4 * width[("float", instruction_set)]
}
pre = prefix[instruction_set]
for intrinsic_id, function_shortcut in base_names.items():
function_shortcut = function_shortcut.strip()
name = function_shortcut[:function_shortcut.index('[')]
if 'Int' in intrinsic_id:
suf = suffix['int']
arg_string = get_argument_string(intrinsic_id, result['intwidth'], function_shortcut)
else:
suf = suffix[data_type]
arg_string = get_argument_string(intrinsic_id, result['width'], function_shortcut)
mask_suffix = '_mask' if instruction_set.startswith('avx512') and intrinsic_id in comparisons.keys() else ''
result[intrinsic_id] = pre + "_" + name + "_" + suf + mask_suffix + arg_string
bit_width = result['width'] * (64 if data_type == 'double' else 32)
result['double'] = f"__m{bit_width}d"
result['float'] = f"__m{bit_width}"
result['int'] = f"__m{bit_width}i"
result['bool'] = result[data_type]
result['headers'] = headers[instruction_set]
result['any'] = f"{pre}_movemask_{suf}({{0}}) > 0"
result['all'] = f"{pre}_movemask_{suf}({{0}}) == {hex(2**result['width']-1)}"
setsuf = "x" if bit_width < 512 and bit_width // result['width'] == 64 else ""
if instruction_set.startswith('avx512'):
size = result['width']
masksize = max(size, 8)
result['&'] = f'_kand_mask{masksize}({{0}}, {{1}})'
result['|'] = f'_kor_mask{masksize}({{0}}, {{1}})'
result['any'] = f'!_ktestz_mask{masksize}_u8({{0}}, {{0}})'
result['all'] = f'_kortestc_mask{masksize}_u8({{0}}, {{0}})'
result['blendv'] = f'{pre}_mask_blend_{suf}({{2}}, {{0}}, {{1}})'
result['rsqrt'] = f"{pre}_rsqrt14_{suf}({{0}})"
result['bool'] = f"__mmask{masksize}"
params = " | ".join(["({{{i}}} ? {power} : 0)".format(i=i, power=2 ** i) for i in range(8)])
result['makeVecBool'] = f"__mmask8(({params}) )"
params = " | ".join(["({{0}} ? {power} : 0)".format(power=2 ** i) for i in range(8)])
result['makeVecConstBool'] = f"__mmask8(({params}) )"
vindex = f'{pre}_set_epi{bit_width//size}{setsuf}(' + \
', '.join([str(i) for i in range(result['width'])][::-1]) + ')'
vindex = f'{pre}_mullo_epi{bit_width//size}({vindex}, {pre}_set1_epi{bit_width//size}{setsuf}({{0}}))'
scale = bit_width // size // 8
result['storeS'] = f'{pre}_i{bit_width//size}scatter_{suf}({{0}}, ' + vindex.format("{2}") + \
f', {{1}}, {scale})'
result['maskStoreS'] = f'{pre}_mask_i{bit_width//size}scatter_{suf}({{0}}, {{3}}, ' + vindex.format("{2}") + \
f', {{1}}, {scale})'
if bit_width == 512:
result['loadS'] = f'{pre}_i{bit_width//size}gather_{suf}(' + vindex.format("{1}") + f', {{0}}, {scale})'
else:
result['loadS'] = f'{pre}_i{bit_width//size}gather_{suf}({{0}}, ' + vindex.format("{1}") + f', {scale})'
# abs intrinsic exists in 512 bits, but expands to a sequence. We generate that same sequence for 128 and 256 bits
if instruction_set == 'avx512':
result['abs'] = f"{pre}_abs_{suf}({{0}})"
else:
result['abs'] = f"{pre}_castsi{bit_width}_{suf}({pre}_and_si{bit_width}(" + \
f"{pre}_set1_epi{bit_width // result['width']}{setsuf}(0x7" + \
'f' * (bit_width // result['width'] // 4 - 1) + "), " + \
f"{pre}_cast{suf}_si{bit_width}({{0}})))"
if instruction_set == 'avx' and data_type == 'float':
result['rsqrt'] = f"{pre}_rsqrt_{suf}({{0}})"
result['+int'] = f"{pre}_add_{suffix['int']}({{0}}, {{1}})"
result['streamFence'] = '_mm_mfence()'
return result
src/pystencils/bit_masks.py 0 → 100644
View file @ 5600b6b6
import sympy as sp
# from pystencils.typing import get_type_of_expression
# noinspection PyPep8Naming
class flag_cond(sp.Function):
"""Evaluates a flag condition on a bit mask, and returns the value of one of two expressions,
depending on whether the flag is set.
Three argument version:
```
flag_cond(flag_bit, mask, expr) = expr if (flag_bit is set in mask) else 0
```
Four argument version:
```
flag_cond(flag_bit, mask, expr_then, expr_else) = expr_then if (flag_bit is set in mask) else expr_else
```
"""
nargs = (3, 4)
def __new__(cls, flag_bit, mask_expression, *expressions):
# TODO Jan reintroduce checking
# flag_dtype = get_type_of_expression(flag_bit)
# if not flag_dtype.is_int():
# raise ValueError('Argument flag_bit must be of integer type.')
#
# mask_dtype = get_type_of_expression(mask_expression)
# if not mask_dtype.is_int():
# raise ValueError('Argument mask_expression must be of integer type.')
return super().__new__(cls, flag_bit, mask_expression, *expressions)
def to_c(self, print_func):
flag_bit = self.args[0]
mask = self.args[1]
then_expression = self.args[2]
flag_bit_code = print_func(flag_bit)
mask_code = print_func(mask)
then_code = print_func(then_expression)
code = f"(({mask_code}) >> ({flag_bit_code}) & 1) * ({then_code})"
if len(self.args) > 3:
else_expression = self.args[3]
else_code = print_func(else_expression)
code += f" + (({mask_code}) >> ({flag_bit_code}) ^ 1) * ({else_code})"
return code
pystencils/boundaries/boundaryconditions.py → src/pystencils/boundaries/boundaryconditions.py
View file @ 5600b6b6
from typing import Any, List, Tuple
from pystencils import Assignment
from pystencils.astnodes import SympyAssignment
from pystencils.boundaries.boundaryhandling import BoundaryOffsetInfo
from pystencils.data_types import create_type
from pystencils.typing import create_type
class Boundary:
......@@ -14,7 +14,7 @@ class Boundary:
def __init__(self, name=None):
self._name = name
def __call__(self, field, direction_symbol, index_field) -> List[Assignment]:
def __call__(self, field, direction_symbol, index_field) -> List[SympyAssignment]:
"""Defines the boundary behavior and must therefore be implemented by all boundaries.
Here the boundary is defined as a list of sympy assignments, from which a boundary kernel is generated.
......@@ -63,20 +63,20 @@ class Neumann(Boundary):
neighbor = BoundaryOffsetInfo.offset_from_dir(direction_symbol, field.spatial_dimensions)
if field.index_dimensions == 0:
return [Assignment(field.center, field[neighbor])]
return [SympyAssignment(field.center, field[neighbor])]
else:
from itertools import product
if not field.has_fixed_index_shape:
raise NotImplementedError("Neumann boundary works only for fields with fixed index shape")
index_iter = product(*(range(i) for i in field.index_shape))
return [Assignment(field(*idx), field[neighbor](*idx)) for idx in index_iter]
return [SympyAssignment(field(*idx), field[neighbor](*idx)) for idx in index_iter]
def __hash__(self):
# All boundaries of these class behave equal -> should also be equal
return hash("Neumann")
def __eq__(self, other):
return type(other) == Neumann
return type(other) is Neumann
class Dirichlet(Boundary):
......@@ -84,7 +84,7 @@ class Dirichlet(Boundary):
inner_or_boundary = False
single_link = True
def __init__(self, value, name="Dirchlet"):
def __init__(self, value, name=None):
super().__init__(name)
self._value = value
......@@ -103,11 +103,11 @@ class Dirichlet(Boundary):
def __call__(self, field, direction_symbol, index_field, **kwargs):
if field.index_dimensions == 0:
return [Assignment(field, index_field("value") if self.additional_data else self._value)]
return [SympyAssignment(field.center, index_field("value") if self.additional_data else self._value)]
elif field.index_dimensions == 1:
assert not self.additional_data
if not field.has_fixed_index_shape:
raise NotImplementedError("Field needs fixed index shape")
assert len(self._value) == field.index_shape[0], "Dirichlet value does not match index shape of field"
return [Assignment(field(i), self._value[i]) for i in range(field.index_shape[0])]
return [SympyAssignment(field(i), self._value[i]) for i in range(field.index_shape[0])]
raise NotImplementedError("Dirichlet boundary not implemented for fields with more than one index dimension")
pystencils/boundaries/boundaryhandling.py → src/pystencils/boundaries/boundaryhandling.py
View file @ 5600b6b6
from functools import lru_cache
import numpy as np
import sympy as sp
from pystencils import create_indexed_kernel
from pystencils.assignment import Assignment
from pystencils import create_kernel, CreateKernelConfig, Target
from pystencils.astnodes import SympyAssignment
from pystencils.backends.cbackend import CustomCodeNode
from pystencils.boundaries.createindexlist import (
create_boundary_index_array, numpy_data_type_for_boundary_object)
from pystencils.cache import memorycache
from pystencils.data_types import TypedSymbol, create_type
from pystencils.typing import TypedSymbol, create_type
from pystencils.gpu.gpu_array_handler import GPUArrayHandler
from pystencils.field import Field
from pystencils.kernelparameters import FieldPointerSymbol
from pystencils.typing.typed_sympy import FieldPointerSymbol
try:
# noinspection PyPep8Naming
import waLBerla as wlb
if wlb.cpp_available:
from pystencils.datahandling.parallel_datahandling import ParallelDataHandling
import cupy.cuda.runtime
else:
ParallelDataHandling = None
except ImportError:
ParallelDataHandling = None
DEFAULT_FLAG_TYPE = np.uint32
......@@ -22,11 +35,11 @@ class FlagInterface:
>>> dh = create_data_handling((4, 5))
>>> fi = FlagInterface(dh, 'flag_field', np.uint8)
>>> assert dh.has_data('flag_field')
>>> fi.reserve_next_flag()
>>> int(fi.reserve_next_flag())
2
>>> fi.reserve_flag(4)
>>> int(fi.reserve_flag(4))
4
>>> fi.reserve_next_flag()
>>> int(fi.reserve_next_flag())
8
"""
......@@ -55,13 +68,13 @@ class FlagInterface:
self._used_flags.add(flag)
assert self._is_power_of_2(flag)
return flag
raise ValueError("All available {} flags are reserved".format(self.max_bits))
raise ValueError(f"All available {self.max_bits} flags are reserved")
def reserve_flag(self, flag):
assert self._is_power_of_2(flag)
flag = self.dtype(flag)
if flag in self._used_flags:
raise ValueError("The flag {flag} is already reserved".format(flag=flag))
raise ValueError(f"The flag {flag} is already reserved")
self._used_flags.add(flag)
return flag
......@@ -73,7 +86,7 @@ class FlagInterface:
class BoundaryHandling:
def __init__(self, data_handling, field_name, stencil, name="boundary_handling", flag_interface=None,
target='cpu', openmp=True):
target: Target = Target.CPU, openmp=True):
assert data_handling.has_data(field_name)
assert data_handling.dim == len(stencil[0]), "Dimension of stencil and data handling do not match"
self._data_handling = data_handling
......@@ -87,8 +100,33 @@ class BoundaryHandling:
fi = flag_interface
self.flag_interface = fi if fi is not None else FlagInterface(data_handling, name + "Flags")
gpu = self._target == 'gpu'
data_handling.add_custom_class(self._index_array_name, self.IndexFieldBlockData, cpu=True, gpu=gpu)
if ParallelDataHandling and isinstance(self.data_handling, ParallelDataHandling):
array_handler = GPUArrayHandler(cupy.cuda.runtime.getDevice())
else:
array_handler = self.data_handling.array_handler
def to_cpu(gpu_version, cpu_version):
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
for obj, cpu_arr in cpu_version.items():
array_handler.download(gpu_version[obj], cpu_arr)
def to_gpu(gpu_version, cpu_version):
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
for obj, cpu_arr in cpu_version.items():
if obj not in gpu_version or gpu_version[obj].shape != cpu_arr.shape:
gpu_version[obj] = array_handler.empty(cpu_arr.shape, cpu_arr.dtype)
array_handler.upload(gpu_version[obj], cpu_arr)
else:
array_handler.upload(gpu_version[obj], cpu_arr)
class_ = self.IndexFieldBlockData
class_.to_cpu = to_cpu
class_.to_gpu = to_gpu
gpu = self._target in data_handling._GPU_LIKE_TARGETS
data_handling.add_custom_class(self._index_array_name, class_, cpu=True, gpu=gpu)
@property
def data_handling(self):
......@@ -204,7 +242,7 @@ class BoundaryHandling:
if self._dirty:
self.prepare()
for b in self._data_handling.iterate(gpu=self._target == 'gpu'):
for b in self._data_handling.iterate(gpu=self._target in self._data_handling._GPU_LIKE_TARGETS):
for b_obj, idx_arr in b[self._index_array_name].boundary_object_to_index_list.items():
kwargs[self._field_name] = b[self._field_name]
kwargs['indexField'] = idx_arr
......@@ -219,7 +257,7 @@ class BoundaryHandling:
if self._dirty:
self.prepare()
for b in self._data_handling.iterate(gpu=self._target == 'gpu'):
for b in self._data_handling.iterate(gpu=self._target in self._data_handling._GPU_LIKE_TARGETS):
for b_obj, idx_arr in b[self._index_array_name].boundary_object_to_index_list.items():
arguments = kwargs.copy()
arguments[self._field_name] = b[self._field_name]
......@@ -236,11 +274,13 @@ class BoundaryHandling:
"""
Writes a VTK field where each cell with the given boundary is marked with 1, other cells are 0
This can be used to display the simulation geometry in Paraview
:param file_name: vtk filename
:param boundaries: boundary object, or special string 'domain' for domain cells or special string 'all' for all
boundary conditions.
can also be a sequence, to write multiple boundaries to VTK file
:param ghost_layers: number of ghost layers to write, or True for all, False for none
Params:
file_name: vtk filename
boundaries: boundary object, or special string 'domain' for domain cells or special string 'all' for all
boundary conditions.
can also be a sequence, to write multiple boundaries to VTK file
ghost_layers: number of ghost layers to write, or True for all, False for none
"""
if boundaries == 'all':
boundaries = list(self._boundary_object_to_boundary_info.keys()) + ['domain']
......@@ -275,7 +315,7 @@ class BoundaryHandling:
def _create_boundary_kernel(self, symbolic_field, symbolic_index_field, boundary_obj):
return create_boundary_kernel(symbolic_field, symbolic_index_field, self.stencil, boundary_obj,
target=self._target, openmp=self._openmp)
target=self._target, cpu_openmp=self._openmp)
def _create_index_fields(self):
dh = self._data_handling
......@@ -302,7 +342,7 @@ class BoundaryHandling:
def _boundary_data_initialization(self, boundary_obj, boundary_data_setter, **kwargs):
if boundary_obj.additional_data_init_callback:
boundary_obj.additional_data_init_callback(boundary_data_setter, **kwargs)
if self._target == 'gpu':
if self._target in self._data_handling._GPU_LIKE_TARGETS:
self._data_handling.to_gpu(self._index_array_name)
class BoundaryInfo(object):
......@@ -312,7 +352,7 @@ class BoundaryHandling:
self.kernel = kernel
class IndexFieldBlockData:
def __init__(self, *_1, **_2):
def __init__(self, *args, **kwargs):
self.boundary_object_to_index_list = {}
self.boundary_object_to_data_setter = {}
......@@ -320,24 +360,6 @@ class BoundaryHandling:
self.boundary_object_to_index_list.clear()
self.boundary_object_to_data_setter.clear()
@staticmethod
def to_cpu(gpu_version, cpu_version):
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
for obj, cpu_arr in cpu_version.items():
gpu_version[obj].get(cpu_arr)
@staticmethod
def to_gpu(gpu_version, cpu_version):
from pycuda import gpuarray
gpu_version = gpu_version.boundary_object_to_index_list
cpu_version = cpu_version.boundary_object_to_index_list
for obj, cpu_arr in cpu_version.items():
if obj not in gpu_version or gpu_version[obj].shape != cpu_arr.shape:
gpu_version[obj] = gpuarray.to_gpu(cpu_arr)
else:
gpu_version[obj].set(cpu_arr)
class BoundaryDataSetter:
......@@ -359,26 +381,26 @@ class BoundaryDataSetter:
assert coord < self.dim
return self.index_array[self.coord_map[coord]] + self.offset[coord] - self.ghost_layers + 0.5
@memorycache()
@lru_cache()
def link_offsets(self):
return self.stencil[self.index_array['dir']]
@memorycache()
@lru_cache()
def link_positions(self, coord):
return self.non_boundary_cell_positions(coord) + 0.5 * self.link_offsets()[:, coord]
@memorycache()
@lru_cache()
def boundary_cell_positions(self, coord):
return self.non_boundary_cell_positions(coord) + self.link_offsets()[:, coord]
def __setitem__(self, key, value):
if key not in self.boundary_data_names:
raise KeyError("Invalid boundary data name %s. Allowed are %s" % (key, self.boundary_data_names))
raise KeyError(f"Invalid boundary data name {key}. Allowed are {self.boundary_data_names}")
self.index_array[key] = value
def __getitem__(self, item):
if item not in self.boundary_data_names:
raise KeyError("Invalid boundary data name %s. Allowed are %s" % (item, self.boundary_data_names))
raise KeyError(f"Invalid boundary data name {item}. Allowed are {self.boundary_data_names}")
return self.index_array[item]
......@@ -404,29 +426,30 @@ class BoundaryOffsetInfo(CustomCodeNode):
code = "\n"
for i in range(dim):
offset_str = ", ".join([str(d[i]) for d in stencil])
code += "const int64_t %s [] = { %s };\n" % (offset_sym[i].name, offset_str)
code += "const int32_t %s [] = { %s };\n" % (offset_sym[i].name, offset_str)
inv_dirs = []
for direction in stencil:
inverse_dir = tuple([-i for i in direction])
inv_dirs.append(str(stencil.index(inverse_dir)))
code += "const int %s [] = { %s };\n" % (self.INV_DIR_SYMBOL.name, ", ".join(inv_dirs))
code += "const int32_t %s [] = { %s };\n" % (self.INV_DIR_SYMBOL.name, ", ".join(inv_dirs))
offset_symbols = BoundaryOffsetInfo._offset_symbols(dim)
super(BoundaryOffsetInfo, self).__init__(code, symbols_read=set(),
symbols_defined=set(offset_symbols + [self.INV_DIR_SYMBOL]))
@staticmethod
def _offset_symbols(dim):
return [TypedSymbol("c%s" % (d,), create_type(np.int64)) for d in ['x', 'y', 'z'][:dim]]
return [TypedSymbol(f"c{d}", create_type(np.int32)) for d in ['x', 'y', 'z'][:dim]]
INV_DIR_SYMBOL = TypedSymbol("invdir", "int")
INV_DIR_SYMBOL = TypedSymbol("invdir", np.int32)
def create_boundary_kernel(field, index_field, stencil, boundary_functor, target='cpu', openmp=True):
def create_boundary_kernel(field, index_field, stencil, boundary_functor, target=Target.CPU, **kernel_creation_args):
elements = [BoundaryOffsetInfo(stencil)]
index_arr_dtype = index_field.dtype.numpy_dtype
dir_symbol = TypedSymbol("dir", index_arr_dtype.fields['dir'][0])
elements += [Assignment(dir_symbol, index_field[0]('dir'))]
dir_symbol = TypedSymbol("dir", np.int32)
elements += [SympyAssignment(dir_symbol, index_field[0]('dir'))]
elements += boundary_functor(field, direction_symbol=dir_symbol, index_field=index_field)
return create_indexed_kernel(elements, [index_field], target=target, cpu_openmp=openmp)
config = CreateKernelConfig(index_fields=[index_field], target=target, skip_independence_check=True,
**kernel_creation_args)
return create_kernel(elements, config=config)