Skip to content
GitLab
Projects
Groups
Snippets
/
Help
Help
Support
Community forum
Keyboard shortcuts
?
Submit feedback
Contribute to GitLab
Sign in
Toggle navigation
Menu
Open sidebar
pycodegen
lbmpy
Commits
477170c6
Commit
477170c6
authored
May 27, 2021
by
Michael Kuron
Committed by
Markus Holzer
May 27, 2021
Browse files
Check if fluctuating LB compiles when vectorized
parent
a6e35ca6
Changes
1
Hide whitespace changes
Inline
Side-by-side
lbmpy_tests/test_fluctuating_lb.py
View file @
477170c6
...
...
@@ -6,6 +6,11 @@ from lbmpy.creationfunctions import *
from
lbmpy.macroscopic_value_kernels
import
macroscopic_values_setter
import
numpy
as
np
from
lbmpy.moments
import
is_bulk_moment
,
is_shear_moment
,
get_order
from
pystencils.rng
import
PhiloxTwoDoubles
import
pytest
from
pystencils.backends.simd_instruction_sets
import
get_supported_instruction_sets
,
get_vector_instruction_set
from
pystencils.cpu.cpujit
import
get_compiler_config
def
single_component_maxwell
(
x1
,
x2
,
kT
,
mass
):
...
...
@@ -242,3 +247,59 @@ def test_point_force(target="cpu"):
momentum
,
introduced_momentum
+
0.5
*
point_force
,
atol
=
1E-10
)
dh
.
cpu_arrays
[
"force"
][
force_pos
[
0
],
force_pos
[
1
],
force_pos
[
2
]]
=
np
.
zeros
(
3
)
@
pytest
.
mark
.
skipif
(
not
get_supported_instruction_sets
(),
reason
=
"No vector instruction sets supported"
)
@
pytest
.
mark
.
parametrize
(
'assume_aligned'
,
(
True
,
False
))
@
pytest
.
mark
.
parametrize
(
'assume_inner_stride_one'
,
(
True
,
False
))
@
pytest
.
mark
.
parametrize
(
'assume_sufficient_line_padding'
,
(
True
,
False
))
def
test_vectorization
(
assume_aligned
,
assume_inner_stride_one
,
assume_sufficient_line_padding
):
method
=
create_mrt_orthogonal
(
stencil
=
get_stencil
(
'D2Q9'
),
compressible
=
True
,
weighted
=
True
,
relaxation_rate_getter
=
rr_getter
)
collision_rule
=
create_lb_collision_rule
(
method
,
fluctuating
=
{
'temperature'
:
sp
.
Symbol
(
"kT"
),
'rng_node'
:
PhiloxTwoDoubles
,
'block_offsets'
:
(
0
,
0
),
},
optimization
=
{
'cse_global'
:
True
}
)
collision
=
create_lb_update_rule
(
collision_rule
=
collision_rule
,
stencil
=
method
.
stencil
,
method
=
method
,
compressible
=
True
,
kernel_type
=
'collide_only'
)
instruction_sets
=
get_supported_instruction_sets
()
if
get_compiler_config
()[
'os'
]
==
'windows'
:
# skip instruction sets supported by the CPU but not by the compiler
if
'avx'
in
instruction_sets
and
(
'/arch:avx2'
not
in
get_compiler_config
()[
'flags'
].
lower
()
and
'/arch:avx512'
not
in
get_compiler_config
()[
'flags'
].
lower
()):
instruction_sets
.
remove
(
'avx'
)
if
'avx512'
in
instruction_sets
and
'/arch:avx512'
not
in
get_compiler_config
()[
'flags'
].
lower
():
instruction_sets
.
remove
(
'avx512'
)
instruction_set
=
instruction_sets
[
-
1
]
opts
=
{
'cpu_openmp'
:
False
,
'cpu_vectorize_info'
:
{
'instruction_set'
:
instruction_set
,
'assume_aligned'
:
assume_aligned
,
'assume_inner_stride_one'
:
assume_inner_stride_one
,
'assume_sufficient_line_padding'
:
assume_sufficient_line_padding
,
},
'target'
:
'cpu'
}
if
not
assume_inner_stride_one
and
'storeS'
not
in
get_vector_instruction_set
(
'double'
,
instruction_set
):
with
pytest
.
warns
(
UserWarning
)
as
warn
:
code
=
ps
.
create_kernel
(
collision
,
**
opts
)
assert
'Could not vectorize loop'
in
warn
[
0
].
message
.
args
[
0
]
else
:
with
pytest
.
warns
(
None
)
as
warn
:
code
=
ps
.
create_kernel
(
collision
,
**
opts
)
assert
len
(
warn
)
==
0
code
.
compile
()
Write
Preview
Supports
Markdown
0%
Try again
or
attach a new file
.
Cancel
You are about to add
0
people
to the discussion. Proceed with caution.
Finish editing this message first!
Cancel
Please
register
or
sign in
to comment