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pycodegen
pystencils
Commits
393cf72a
Commit
393cf72a
authored
Nov 14, 2020
by
Michael Kuron
Browse files
ARM NEON vectorization
parent
2d758462
Pipeline
#27982
failed with stage
in 6 minutes and 12 seconds
Changes
3
Pipelines
1
Hide whitespace changes
Inline
Side-by-side
pystencils/backends/cbackend.py
View file @
393cf72a
...
...
@@ -531,6 +531,11 @@ class VectorizedCustomSympyPrinter(CustomSympyPrinter):
assert
self
.
instruction_set
[
'width'
]
==
expr_type
.
width
return
None
def
_print_Abs
(
self
,
expr
):
if
'abs'
in
self
.
instruction_set
and
isinstance
(
expr
.
args
[
0
],
vector_memory_access
):
return
self
.
instruction_set
[
'abs'
].
format
(
self
.
_print
(
expr
.
args
[
0
]))
return
super
().
_print_Abs
(
expr
)
def
_print_Function
(
self
,
expr
):
if
isinstance
(
expr
,
vector_memory_access
):
arg
,
data_type
,
aligned
,
_
,
mask
=
expr
.
args
...
...
pystencils/backends/simd_instruction_sets.py
View file @
393cf72a
def
get_vector_instruction_set
(
data_type
=
'double'
,
instruction_set
=
'avx'
):
if
instruction_set
in
[
'neon'
,
'sve'
]:
return
get_vector_instruction_set_arm
(
data_type
,
instruction_set
)
else
:
return
get_vector_instruction_set_x86
(
data_type
,
instruction_set
)
# noinspection SpellCheckingInspection
def
get_vector_instruction_set
(
data_type
=
'double'
,
instruction_set
=
'avx'
):
def
get_vector_instruction_set
_x86
(
data_type
,
instruction_set
):
comparisons
=
{
'=='
:
'_CMP_EQ_UQ'
,
'!='
:
'_CMP_NEQ_UQ'
,
...
...
@@ -137,7 +142,8 @@ def get_vector_instruction_set(data_type='double', instruction_set='avx'):
result
[
'any'
]
=
'!_ktestz_mask%d_u8({0}, {0})'
%
(
size
,
)
result
[
'all'
]
=
'_kortestc_mask%d_u8({0}, {0})'
%
(
size
,
)
result
[
'blendv'
]
=
'%s_mask_blend_%s({2}, {0}, {1})'
%
(
pre
,
suf
)
result
[
'rsqrt'
]
=
"_mm512_rsqrt14_%s({0})"
%
(
suf
,)
result
[
'rsqrt'
]
=
"%s_rsqrt14_%s({0})"
%
(
pre
,
suf
)
result
[
'abs'
]
=
"%s_abs_%s({0})"
%
(
pre
,
suf
)
result
[
'bool'
]
=
"__mmask%d"
%
(
size
,)
params
=
" | "
.
join
([
"({{{i}}} ? {power} : 0)"
.
format
(
i
=
i
,
power
=
2
**
i
)
for
i
in
range
(
8
)])
...
...
@@ -146,7 +152,57 @@ def get_vector_instruction_set(data_type='double', instruction_set='avx'):
result
[
'makeVecConstBool'
]
=
f
"__mmask8((
{
params
}
) )"
if
instruction_set
==
'avx'
and
data_type
==
'float'
:
result
[
'rsqrt'
]
=
"_mm256_rsqrt_ps({0})"
result
[
'rsqrt'
]
=
"%s_rsqrt_%s({0})"
%
(
pre
,
suf
)
return
result
def
get_vector_instruction_set_arm
(
data_type
,
instruction_set
):
size
=
64
if
data_type
==
'double'
else
32
ops
=
{
'*'
:
(
'mul'
,
2
),
'+'
:
(
'add'
,
2
),
'-'
:
(
'sub'
,
2
),
'/'
:
(
'div'
,
2
),
'sqrt'
:
(
'sqrt'
,
1
),
'rsqrt'
:
(
None
,
1
),
'abs'
:
(
'abs'
,
1
),
'=='
:
(
'ceq'
,
2
),
'<='
:
(
'cle'
,
2
),
'<'
:
(
'clt'
,
2
),
'>='
:
(
'cge'
,
2
),
'>'
:
(
'cgt'
,
2
),
'&'
:
(
'and'
,
2
),
'|'
:
(
'orr'
,
2
),
'storeU'
:
(
'st1'
,
2
),
'loadU'
:
(
'ld1'
,
1
),
'store'
:
(
'st1'
,
2
),
'load'
:
(
'ld1'
,
1
),
}
if
instruction_set
==
'neon'
:
width
=
{
(
"double"
,
"neon"
):
2
,
(
"float"
,
"neon"
):
4
}
result
=
{
'width'
:
width
[(
data_type
,
instruction_set
)],
'headers'
:
[
'<arm_neon.h>'
]
}
result
[
'double'
]
=
"float64x%d_t"
%
(
width
[(
'double'
,
instruction_set
)])
result
[
'float'
]
=
"float32x%d_t"
%
(
width
[(
'float'
,
instruction_set
)])
elif
instruction_set
==
'sve'
:
result
=
{
'headers'
:
[
'<arm_sve.h>'
]
}
result
[
'double'
]
=
"svfloat64_t"
result
[
'float'
]
=
"svfloat32_t"
for
op
,
instr
in
ops
.
items
():
instr
,
arity
=
instr
if
instr
:
result
[
op
]
=
'v%sq_f%d({%s})'
%
(
instr
,
size
,
'},{'
.
join
([
str
(
i
)
for
i
in
range
(
arity
)]))
if
instruction_set
==
'sve'
:
result
[
op
]
=
's'
+
result
[
op
]
else
:
result
[
op
]
=
None
if
instruction_set
==
'sve'
:
result
[
'!='
]
=
'svnot_u%d(%s)'
%
(
size
,
result
[
'=='
])
else
:
result
[
'!='
]
=
'vmvnq_u%d(%s)'
%
(
size
,
result
[
'=='
])
result
[
'stream'
]
=
'__builtin_nontemporal_store({1}, {0})'
return
result
...
...
@@ -162,6 +218,7 @@ def get_supported_instruction_sets():
required_sse_flags
=
{
'sse'
,
'sse2'
,
'ssse3'
,
'sse4_1'
,
'sse4_2'
}
required_avx_flags
=
{
'avx'
}
required_avx512_flags
=
{
'avx512f'
}
required_neon_flags
=
{
'neon'
}
flags
=
set
(
get_cpu_info
()[
'flags'
])
if
flags
.
issuperset
(
required_sse_flags
):
result
.
append
(
"sse"
)
...
...
@@ -169,4 +226,6 @@ def get_supported_instruction_sets():
result
.
append
(
"avx"
)
if
flags
.
issuperset
(
required_avx512_flags
):
result
.
append
(
"avx512"
)
if
flags
.
issuperset
(
required_neon_flags
):
result
.
append
(
"neon"
)
return
result
pystencils/cpu/vectorization.py
View file @
393cf72a
...
...
@@ -176,7 +176,7 @@ def insert_vector_casts(ast_node):
visit_expr
(
expr
.
args
[
4
]))
elif
isinstance
(
expr
,
cast_func
):
return
expr
elif
expr
.
func
is
sp
.
Abs
:
elif
expr
.
func
is
sp
.
Abs
and
'abs'
not
in
ast_node
.
instruction_set
:
new_arg
=
visit_expr
(
expr
.
args
[
0
])
pw
=
sp
.
Piecewise
((
-
1
*
new_arg
,
new_arg
<
0
),
(
new_arg
,
True
))
return
visit_expr
(
pw
)
...
...
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