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|
Allows you to specify order of BLAS/LAPACK preference
https://github.com/numpy/numpy/pull/13132
diff --git a/numpy/distutils/system_info.py b/numpy/distutils/system_info.py
index 806f4f7d3..0480d7b5a 100644
--- a/numpy/distutils/system_info.py
+++ b/numpy/distutils/system_info.py
@@ -474,6 +474,13 @@ class LapackSrcNotFoundError(LapackNotFoundError):
the LAPACK_SRC environment variable."""
+class BlasOptNotFoundError(NotFoundError):
+ """
+ Optimized (vendor) Blas libraries are not found.
+ Falls back to netlib Blas library which has worse performance.
+ A better performance should be easily gained by switching
+ Blas library."""
+
class BlasNotFoundError(NotFoundError):
"""
Blas (http://www.netlib.org/blas/) libraries not found.
@@ -1541,139 +1548,219 @@ Make sure that -lgfortran is used for C++ extensions.
class lapack_opt_info(system_info):
notfounderror = LapackNotFoundError
+ # Default order of LAPACK checks
+ lapack_order = ['mkl', 'openblas', 'atlas', 'accelerate', 'lapack']
- def calc_info(self):
+ def _calc_info_mkl(self):
+ info = get_info('lapack_mkl')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- lapack_mkl_info = get_info('lapack_mkl')
- if lapack_mkl_info:
- self.set_info(**lapack_mkl_info)
- return
+ def _calc_info_openblas(self):
+ info = get_info('openblas_lapack')
+ if info:
+ self.set_info(**info)
+ return True
+ info = get_info('openblas_clapack')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- openblas_info = get_info('openblas_lapack')
- if openblas_info:
- self.set_info(**openblas_info)
- return
+ def _calc_info_atlas(self):
+ info = get_info('atlas_3_10_threads')
+ if not info:
+ info = get_info('atlas_3_10')
+ if not info:
+ info = get_info('atlas_threads')
+ if not info:
+ info = get_info('atlas')
+ if info:
+ # Figure out if ATLAS has lapack...
+ # If not we need the lapack library, but not BLAS!
+ l = info.get('define_macros', [])
+ if ('ATLAS_WITH_LAPACK_ATLAS', None) in l \
+ or ('ATLAS_WITHOUT_LAPACK', None) in l:
+ # Get LAPACK (with possible warnings)
+ # If not found we don't accept anything
+ # since we can't use ATLAS with LAPACK!
+ lapack_info = self._get_info_lapack()
+ if not lapack_info:
+ return False
+ dict_append(info, **lapack_info)
+ self.set_info(**info)
+ return True
+ return False
- openblas_info = get_info('openblas_clapack')
- if openblas_info:
- self.set_info(**openblas_info)
- return
+ def _calc_info_accelerate(self):
+ info = get_info('accelerate')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- atlas_info = get_info('atlas_3_10_threads')
- if not atlas_info:
- atlas_info = get_info('atlas_3_10')
- if not atlas_info:
- atlas_info = get_info('atlas_threads')
- if not atlas_info:
- atlas_info = get_info('atlas')
-
- accelerate_info = get_info('accelerate')
- if accelerate_info and not atlas_info:
- self.set_info(**accelerate_info)
- return
+ def _get_info_blas(self):
+ # Default to get the optimized BLAS implementation
+ info = get_info('blas_opt')
+ if not info:
+ warnings.warn(BlasNotFoundError.__doc__ or '', stacklevel=3)
+ info_src = get_info('blas_src')
+ if not info_src:
+ warnings.warn(BlasSrcNotFoundError.__doc__ or '', stacklevel=3)
+ return {}
+ dict_append(info, libraries=[('fblas_src', info_src)])
+ return info
- need_lapack = 0
- need_blas = 0
- info = {}
- if atlas_info:
- l = atlas_info.get('define_macros', [])
- if ('ATLAS_WITH_LAPACK_ATLAS', None) in l \
- or ('ATLAS_WITHOUT_LAPACK', None) in l:
- need_lapack = 1
- info = atlas_info
+ def _get_info_lapack(self):
+ info = get_info('lapack')
+ if not info:
+ warnings.warn(LapackNotFoundError.__doc__ or '', stacklevel=3)
+ info_src = get_info('lapack_src')
+ if not info_src:
+ warnings.warn(LapackSrcNotFoundError.__doc__ or '', stacklevel=3)
+ return {}
+ dict_append(info, libraries=[('flapack_src', info_src)])
+ return info
- else:
- warnings.warn(AtlasNotFoundError.__doc__, stacklevel=2)
- need_blas = 1
- need_lapack = 1
+ def _calc_info_lapack(self):
+ info = self._get_info_lapack()
+ if info:
+ info_blas = self._get_info_blas()
+ dict_append(info, **info_blas)
dict_append(info, define_macros=[('NO_ATLAS_INFO', 1)])
+ self.set_info(**info)
+ return True
+ return False
- if need_lapack:
- lapack_info = get_info('lapack')
- #lapack_info = {} ## uncomment for testing
- if lapack_info:
- dict_append(info, **lapack_info)
- else:
- warnings.warn(LapackNotFoundError.__doc__, stacklevel=2)
- lapack_src_info = get_info('lapack_src')
- if not lapack_src_info:
- warnings.warn(LapackSrcNotFoundError.__doc__, stacklevel=2)
- return
- dict_append(info, libraries=[('flapack_src', lapack_src_info)])
-
- if need_blas:
- blas_info = get_info('blas')
- if blas_info:
- dict_append(info, **blas_info)
- else:
- warnings.warn(BlasNotFoundError.__doc__, stacklevel=2)
- blas_src_info = get_info('blas_src')
- if not blas_src_info:
- warnings.warn(BlasSrcNotFoundError.__doc__, stacklevel=2)
- return
- dict_append(info, libraries=[('fblas_src', blas_src_info)])
+ def calc_info(self):
+ user_order = os.environ.get('NPY_LAPACK_ORDER', None)
+ if user_order is None:
+ lapack_order = self.lapack_order
+ else:
+ # the user has requested the order of the
+ # check they are all in the available list, a COMMA SEPARATED list
+ user_order = user_order.lower().split(',')
+ non_existing = []
+ lapack_order = []
+ for order in user_order:
+ if order in self.lapack_order:
+ lapack_order.append(order)
+ elif len(order) > 0:
+ non_existing.append(order)
+ if len(non_existing) > 0:
+ raise ValueError("lapack_opt_info user defined "
+ "LAPACK order has unacceptable "
+ "values: {}".format(non_existing))
+
+ for lapack in lapack_order:
+ if getattr(self, '_calc_info_{}'.format(lapack))():
+ return
- self.set_info(**info)
- return
+ if 'lapack' not in lapack_order:
+ # Since the user may request *not* to use any library, we still need
+ # to raise warnings to signal missing packages!
+ warnings.warn(LapackNotFoundError.__doc__ or '', stacklevel=2)
+ warnings.warn(LapackSrcNotFoundError.__doc__ or '', stacklevel=2)
class blas_opt_info(system_info):
notfounderror = BlasNotFoundError
+ # Default order of BLAS checks
+ blas_order = ['mkl', 'blis', 'openblas', 'atlas', 'accelerate', 'blas']
- def calc_info(self):
+ def _calc_info_mkl(self):
+ info = get_info('blas_mkl')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- blas_mkl_info = get_info('blas_mkl')
- if blas_mkl_info:
- self.set_info(**blas_mkl_info)
- return
+ def _calc_info_blis(self):
+ info = get_info('blis')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- blis_info = get_info('blis')
- if blis_info:
- self.set_info(**blis_info)
- return
+ def _calc_info_openblas(self):
+ info = get_info('openblas')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- openblas_info = get_info('openblas')
- if openblas_info:
- self.set_info(**openblas_info)
- return
+ def _calc_info_atlas(self):
+ info = get_info('atlas_3_10_blas_threads')
+ if not info:
+ info = get_info('atlas_3_10_blas')
+ if not info:
+ info = get_info('atlas_blas_threads')
+ if not info:
+ info = get_info('atlas_blas')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- atlas_info = get_info('atlas_3_10_blas_threads')
- if not atlas_info:
- atlas_info = get_info('atlas_3_10_blas')
- if not atlas_info:
- atlas_info = get_info('atlas_blas_threads')
- if not atlas_info:
- atlas_info = get_info('atlas_blas')
-
- accelerate_info = get_info('accelerate')
- if accelerate_info and not atlas_info:
- self.set_info(**accelerate_info)
- return
+ def _calc_info_accelerate(self):
+ info = get_info('accelerate')
+ if info:
+ self.set_info(**info)
+ return True
+ return False
- need_blas = 0
+ def _calc_info_blas(self):
+ # Warn about a non-optimized BLAS library
+ warnings.warn(BlasOptNotFoundError.__doc__ or '', stacklevel=3)
info = {}
- if atlas_info:
- info = atlas_info
+ dict_append(info, define_macros=[('NO_ATLAS_INFO', 1)])
+
+ blas = get_info('blas')
+ if blas:
+ dict_append(info, **blas)
else:
- warnings.warn(AtlasNotFoundError.__doc__, stacklevel=2)
- need_blas = 1
- dict_append(info, define_macros=[('NO_ATLAS_INFO', 1)])
+ # Not even BLAS was found!
+ warnings.warn(BlasNotFoundError.__doc__ or '', stacklevel=3)
- if need_blas:
- blas_info = get_info('blas')
- if blas_info:
- dict_append(info, **blas_info)
- else:
- warnings.warn(BlasNotFoundError.__doc__, stacklevel=2)
- blas_src_info = get_info('blas_src')
- if not blas_src_info:
- warnings.warn(BlasSrcNotFoundError.__doc__, stacklevel=2)
- return
- dict_append(info, libraries=[('fblas_src', blas_src_info)])
+ blas_src = get_info('blas_src')
+ if not blas_src:
+ warnings.warn(BlasSrcNotFoundError.__doc__ or '', stacklevel=3)
+ return False
+ dict_append(info, libraries=[('fblas_src', blas_src)])
self.set_info(**info)
- return
+ return True
+
+ def calc_info(self):
+ user_order = os.environ.get('NPY_BLAS_ORDER', None)
+ if user_order is None:
+ blas_order = self.blas_order
+ else:
+ # the user has requested the order of the
+ # check they are all in the available list
+ user_order = user_order.lower().split(',')
+ non_existing = []
+ blas_order = []
+ for order in user_order:
+ if order in self.blas_order:
+ blas_order.append(order)
+ elif len(order) > 0:
+ non_existing.append(order)
+ if len(non_existing) > 0:
+ raise ValueError("blas_opt_info user defined BLAS order has unacceptable values: {}".format(non_existing))
+
+ for blas in blas_order:
+ if getattr(self, '_calc_info_{}'.format(blas))():
+ return
+
+ if 'blas' not in blas_order:
+ # Since the user may request *not* to use any library, we still need
+ # to raise warnings to signal missing packages!
+ warnings.warn(BlasNotFoundError.__doc__ or '', stacklevel=2)
+ warnings.warn(BlasSrcNotFoundError.__doc__ or '', stacklevel=2)
class blas_info(system_info):
|
