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# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import os
import re
from spack import *
from spack.package_test import compare_output_file, compile_c_and_execute
class Openblas(MakefilePackage):
"""OpenBLAS: An optimized BLAS library"""
homepage = 'https://www.openblas.net'
url = 'https://github.com/xianyi/OpenBLAS/archive/v0.2.19.tar.gz'
git = 'https://github.com/xianyi/OpenBLAS.git'
version('develop', branch='develop')
version('0.3.7', sha256='bde136122cef3dd6efe2de1c6f65c10955bbb0cc01a520c2342f5287c28f9379')
version('0.3.6', sha256='e64c8fe083832ffbc1459ab6c72f71d53afd3b36e8497c922a15a06b72e9002f')
version('0.3.5', sha256='0950c14bd77c90a6427e26210d6dab422271bc86f9fc69126725833ecdaa0e85')
version('0.3.4', sha256='4b4b4453251e9edb5f57465bf2b3cf67b19d811d50c8588cdf2ea1f201bb834f')
version('0.3.3', sha256='49d88f4494ae780e3d7fa51769c00d982d7cdb73e696054ac3baa81d42f13bab')
version('0.3.2', sha256='e8ba64f6b103c511ae13736100347deb7121ba9b41ba82052b1a018a65c0cb15')
version('0.3.1', sha256='1f5e956f35f3acdd3c74516e955d797a320c2e0135e31d838cbdb3ea94d0eb33')
version('0.3.0', sha256='cf51543709abe364d8ecfb5c09a2b533d2b725ea1a66f203509b21a8e9d8f1a1')
version('0.2.20', sha256='5ef38b15d9c652985774869efd548b8e3e972e1e99475c673b25537ed7bcf394')
version('0.2.19', sha256='9c40b5e4970f27c5f6911cb0a28aa26b6c83f17418b69f8e5a116bb983ca8557')
version('0.2.18', sha256='7d9f8d4ea4a65ab68088f3bb557f03a7ac9cb5036ef2ba30546c3a28774a4112')
version('0.2.17', sha256='0fe836dfee219ff4cadcc3567fb2223d9e0da5f60c7382711fb9e2c35ecf0dbf')
version('0.2.16', sha256='766f350d0a4be614812d535cead8c816fc3ad3b9afcd93167ea5e4df9d61869b')
version('0.2.15', sha256='73c40ace5978282224e5e122a41c8388c5a19e65a6f2329c2b7c0b61bacc9044')
variant('ilp64', default=False, description='Force 64-bit Fortran native integers')
variant('pic', default=True, description='Build position independent code')
variant('shared', default=True, description='Build shared libraries')
variant(
'threads', default='none',
description='Multithreading support',
values=('pthreads', 'openmp', 'none'),
multi=False
)
# virtual dependency
provides('blas')
provides('lapack')
# OpenBLAS >=3.0 has an official way to disable internal parallel builds
patch('make.patch', when='@0.2.16:0.2.20')
# This patch is in a pull request to OpenBLAS that has not been handled
# https://github.com/xianyi/OpenBLAS/pull/915
# UPD: the patch has been merged starting version 0.2.20
patch('openblas_icc.patch', when='@:0.2.19%intel')
patch('openblas_icc_openmp.patch', when='@:0.2.20%intel@16.0:')
patch('openblas_icc_fortran.patch', when='%intel@16.0:')
patch('openblas_icc_fortran2.patch', when='%intel@18.0:')
# Fixes compilation error on POWER8 with GCC 7
# https://github.com/xianyi/OpenBLAS/pull/1098
patch('power8.patch', when='@0.2.18:0.2.19 %gcc@7.1.0: target=power8')
# Change file comments to work around clang 3.9 assembler bug
# https://github.com/xianyi/OpenBLAS/pull/982
patch('openblas0.2.19.diff', when='@0.2.19')
# Fix CMake export symbol error
# https://github.com/xianyi/OpenBLAS/pull/1703
patch('openblas-0.3.2-cmake.patch', when='@0.3.1:0.3.2')
# Disable experimental TLS code that lead to many threading issues
# https://github.com/xianyi/OpenBLAS/issues/1735#issuecomment-422954465
# https://github.com/xianyi/OpenBLAS/issues/1761#issuecomment-421039174
# https://github.com/xianyi/OpenBLAS/pull/1765
patch('https://github.com/xianyi/OpenBLAS/commit/4d183e5567346f80f2ef97eb98f8601c47f8cb56.patch',
sha256='714aea33692304a50bd0ccde42590c176c82ded4a8ac7f06e573dc8071929c33',
when='@0.3.3')
# Fix parallel build issues on filesystems
# with missing sub-second timestamp resolution
patch('https://github.com/xianyi/OpenBLAS/commit/79ea839b635d1fd84b6ce8a47e086f01d64198e6.patch',
sha256='f1b066a4481a50678caeb7656bf3e6764f45619686ac465f257c8017a2dc1ff0',
when='@0.3.0:0.3.3')
# Add conditions to f_check to determine the Fujitsu compiler
patch('openblas_fujitsu.patch', when='%fj')
conflicts('%intel@16', when='@0.2.15:0.2.19')
@property
def parallel(self):
# unclear whether setting `-j N` externally was supported before 0.3
return self.spec.version >= Version('0.3.0')
@run_before('edit')
def check_compilers(self):
# As of 06/2016 there is no mechanism to specify that packages which
# depends on Blas/Lapack need C or/and Fortran symbols. For now
# require both.
if self.compiler.fc is None:
raise InstallError(
'OpenBLAS requires both C and Fortran compilers!'
)
# Add support for OpenMP
if (self.spec.satisfies('threads=openmp') and
self.spec.satisfies('%clang')):
if str(self.spec.compiler.version).endswith('-apple'):
raise InstallError("Apple's clang does not support OpenMP")
if '@:0.2.19' in self.spec:
# Openblas (as of 0.2.19) hardcoded that OpenMP cannot
# be used with any (!) compiler named clang, bummer.
raise InstallError(
'OpenBLAS @:0.2.19 does not support OpenMP with clang!'
)
@staticmethod
def _read_targets(target_file):
"""Parse a list of available targets from the OpenBLAS/TargetList.txt
file.
"""
micros = []
re_target = re.compile(r'^[A-Z0-9_]+$')
for line in target_file:
match = re_target.match(line)
if match is not None:
micros.append(line.strip().lower())
return micros
@staticmethod
def _microarch_target_args(microarch, available_targets):
"""Given a spack microarchitecture and a list of targets found in
OpenBLAS' TargetList.txt, determine the best command-line arguments.
"""
args = [] # Return value
# List of available architectures, and possible aliases
openblas_arch = set(['alpha', 'arm', 'ia64', 'mips', 'mips64',
'power', 'sparc', 'zarch'])
openblas_arch_map = {
'amd64': 'x86_64',
'powerpc64': 'power',
'i386': 'x86',
'aarch64': 'arm64',
}
openblas_arch.update(openblas_arch_map.keys())
openblas_arch.update(openblas_arch_map.values())
# Add spack-only microarchitectures to list
skylake = set(["skylake", "skylake_avx512"])
available_targets = set(available_targets) | skylake | openblas_arch
# Find closest ancestor that is known to build in blas
if microarch.name not in available_targets:
for microarch in microarch.ancestors:
if microarch.name in available_targets:
break
arch_name = microarch.family.name
if arch_name in openblas_arch:
# Apply possible spack->openblas arch name mapping
arch_name = openblas_arch_map.get(arch_name, arch_name)
args.append('ARCH=' + arch_name)
if microarch.vendor == 'generic':
# User requested a generic platform, or we couldn't find a good
# match for the requested one. Allow OpenBLAS to determine
# an optimized kernel at run time.
args.append('DYNAMIC_ARCH=1')
elif microarch.name in skylake:
# Special case for renaming skylake family
args.append('TARGET=SKYLAKEX')
if microarch.name == "skylake":
# Special case for disabling avx512 instructions
args.append('NO_AVX512=1')
else:
args.append('TARGET=' + microarch.name.upper())
return args
@property
def make_defs(self):
spec = self.spec
# Configure fails to pick up fortran from FC=/abs/path/to/fc, but
# works fine with FC=/abs/path/to/gfortran.
# When mixing compilers make sure that
# $SPACK_ROOT/lib/spack/env/<compiler> have symlinks with reasonable
# names and hack them inside lib/spack/spack/compilers/<compiler>.py
make_defs = [
'CC={0}'.format(spack_cc),
'FC={0}'.format(spack_fc),
]
# force OpenBLAS to use externally defined parallel build
if self.spec.version < Version('0.3'):
make_defs.append('MAKE_NO_J=1') # flag defined by our make.patch
else:
make_defs.append('MAKE_NB_JOBS=0') # flag provided by OpenBLAS
# Add target and architecture flags
targetlist_name = join_path(self.stage.source_path, "TargetList.txt")
if os.path.exists(targetlist_name):
with open(targetlist_name) as f:
avail_targets = self._read_targets(f)
else:
avail_targets = []
make_defs += self._microarch_target_args(spec.target, avail_targets)
if '~shared' in self.spec:
if '+pic' in self.spec:
make_defs.extend([
'CFLAGS={0}'.format(self.compiler.pic_flag),
'FFLAGS={0}'.format(self.compiler.pic_flag)
])
make_defs += ['NO_SHARED=1']
# fix missing _dggsvd_ and _sggsvd_
if self.spec.satisfies('@0.2.16'):
make_defs += ['BUILD_LAPACK_DEPRECATED=1']
# Add support for multithreading
if self.spec.satisfies('threads=openmp'):
make_defs += ['USE_OPENMP=1', 'USE_THREAD=1']
elif self.spec.satisfies('threads=pthreads'):
make_defs += ['USE_OPENMP=0', 'USE_THREAD=1']
else:
make_defs += ['USE_OPENMP=0', 'USE_THREAD=0']
# 64bit ints
if '+ilp64' in self.spec:
make_defs += ['INTERFACE64=1']
# Prevent errors in `as` assembler from newer instructions
if self.spec.satisfies('%gcc@:4.8.4'):
make_defs.append('NO_AVX2=1')
return make_defs
@property
def headers(self):
# As in netlib-lapack, the only public headers for cblas and lapacke in
# openblas are cblas.h and lapacke.h. The remaining headers are private
# headers either included in one of these two headers, or included in
# one of the source files implementing functions declared in these
# headers.
return find_headers(['cblas', 'lapacke'], self.prefix.include)
@property
def build_targets(self):
targets = ['libs', 'netlib']
# Build shared if variant is set.
if '+shared' in self.spec:
targets += ['shared']
return self.make_defs + targets
@run_after('build')
@on_package_attributes(run_tests=True)
def check_build(self):
make('tests', *self.make_defs, parallel=False)
@property
def install_targets(self):
make_args = [
'install',
'PREFIX={0}'.format(self.prefix),
]
return make_args + self.make_defs
@run_after('install')
@on_package_attributes(run_tests=True)
def check_install(self):
spec = self.spec
# Openblas may pass its own test but still fail to compile Lapack
# symbols. To make sure we get working Blas and Lapack, do a small
# test.
source_file = join_path(os.path.dirname(self.module.__file__),
'test_cblas_dgemm.c')
blessed_file = join_path(os.path.dirname(self.module.__file__),
'test_cblas_dgemm.output')
include_flags = spec['openblas'].headers.cpp_flags
link_flags = spec['openblas'].libs.ld_flags
if self.compiler.name == 'intel':
link_flags += ' -lifcore'
if self.spec.satisfies('threads=pthreads'):
link_flags += ' -lpthread'
if spec.satisfies('threads=openmp'):
link_flags += ' -lpthread ' + self.compiler.openmp_flag
output = compile_c_and_execute(
source_file, [include_flags], link_flags.split()
)
compare_output_file(output, blessed_file)
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