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fftw: altivec only works for float (#13242)

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Christoph Junghans 2019-10-18 10:36:40 -06:00 committed by GitHub
parent 40a11c6bf6
commit b4383825be
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1 changed files with 17 additions and 6 deletions
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23
var/spack/repos/builtin/packages/fftw/package.py
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@ -137,19 +137,21 @@ def configure(self, spec, prefix):
if '+mpi' in spec:
options.append('--enable-mpi')
# Specific SIMD support. Note there's SSE support too for float, but
# given that it can be activated only for float and that most machines
# are new enough to have SSE2 it has been skipped not to complicate the
# recipe further.
# Specific SIMD support.
# all precisions
simd_features = ['sse2', 'avx', 'avx2', 'avx512', 'avx-128-fma',
'kcvi', 'altivec', 'vsx', 'neon']
'kcvi', 'vsx', 'neon']
# float only
float_simd_features = ['altivec', 'sse']
simd_options = []
for feature in simd_features:
msg = '--enable-{0}' if feature in spec.target else '--disable-{0}'
simd_options.append(msg.format(feature))
# If no features are found, enable the generic ones
if not any(f in spec.target for f in simd_features):
if not any(f in spec.target for f in
simd_features + float_simd_features):
simd_options += [
'--enable-generic-simd128',
'--enable-generic-simd256'
@ -178,6 +180,15 @@ def configure(self, spec, prefix):
if precision in ('float', 'double') and spec.satisfies('@3:'):
opts += simd_options
# float-only acceleration
if precision == 'float':
for feature in float_simd_features:
if feature in spec.target:
msg = '--enable-{0}'
else:
msg = '--disable-{0}'
opts.append(msg.format(feature))
with working_dir(precision, create=True):
configure(*opts)