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-rw-r--r--var/spack/repos/builtin/packages/openblas/package.py134
1 files changed, 82 insertions, 52 deletions
diff --git a/var/spack/repos/builtin/packages/openblas/package.py b/var/spack/repos/builtin/packages/openblas/package.py
index 09324c8414..695dcec80c 100644
--- a/var/spack/repos/builtin/packages/openblas/package.py
+++ b/var/spack/repos/builtin/packages/openblas/package.py
@@ -4,10 +4,10 @@
# 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
-import spack.architecture
class Openblas(MakefilePackage):
@@ -33,17 +33,9 @@ class Openblas(MakefilePackage):
version('0.2.16', sha256='766f350d0a4be614812d535cead8c816fc3ad3b9afcd93167ea5e4df9d61869b')
version('0.2.15', sha256='73c40ace5978282224e5e122a41c8388c5a19e65a6f2329c2b7c0b61bacc9044')
- variant(
- 'shared',
- default=True,
- description='Build shared libraries as well as static libs.'
- )
- variant('ilp64', default=False, description='64 bit integers')
+ variant('ilp64', default=False, description='Force 64-bit Fortran native integers')
variant('pic', default=True, description='Build position independent code')
-
- variant('cpu_target', default='auto',
- description='Set CPU target architecture (leave empty for '
- 'autodetection; GENERIC, SSE_GENERIC, NEHALEM, ...)')
+ variant('shared', default=True, description='Build shared libraries')
variant(
'threads', default='none',
@@ -52,24 +44,6 @@ class Openblas(MakefilePackage):
multi=False
)
- variant(
- 'virtual_machine',
- default=False,
- description="Adding options to build openblas on Linux virtual machine"
- )
-
- variant(
- 'avx2',
- default=True,
- description='Enable use of AVX2 instructions'
- )
-
- variant(
- 'avx512',
- default=False,
- description='Enable use of AVX512 instructions'
- )
-
# virtual dependency
provides('blas')
provides('lapack')
@@ -142,14 +116,80 @@ class Openblas(MakefilePackage):
'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),
@@ -161,23 +201,15 @@ class Openblas(MakefilePackage):
else:
make_defs.append('MAKE_NB_JOBS=0') # flag provided by OpenBLAS
- if self.spec.variants['virtual_machine'].value:
- make_defs += [
- 'DYNAMIC_ARCH=1',
- 'NUM_THREADS=64', # OpenBLAS stores present no of CPUs as max
- ]
-
- if self.spec.variants['cpu_target'].value != 'auto':
- make_defs += [
- 'TARGET={0}'.format(self.spec.variants['cpu_target'].value)
- ]
- # invoke make with the correct TARGET for aarch64
- elif 'aarch64' in spack.architecture.sys_type():
- make_defs += [
- 'TARGET=ARMV8'
- ]
- if self.spec.satisfies('%gcc@:4.8.4'):
- make_defs += ['NO_AVX2=1']
+ # 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([
@@ -201,11 +233,9 @@ class Openblas(MakefilePackage):
if '+ilp64' in self.spec:
make_defs += ['INTERFACE64=1']
- if self.spec.target.family == 'x86_64':
- if '~avx2' in self.spec:
- make_defs += ['NO_AVX2=1']
- if '~avx512' in self.spec:
- make_defs += ['NO_AVX512=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