Revision 20fa4ce8d89369441dc4f8a74d62611e8dfa36ea authored by Matthew Woehlke on 18 July 2024, 16:07:26 UTC, committed by Matthew Woehlke on 23 July 2024, 16:13:39 UTC
In order to support generation of Common Package Specifications, the mechanisms CMake uses to export package information need to be made more abstract. The prior commits began this refactoring; this continues by (actually) restructuring the classes used to generate the actual export files. To minimize churn, this introduces virtual base classes and diamond inheritance in order to separate logic which is format-agnostic but depends on the export mode (build-tree versus install-tree) from logic which is format-specific but mode-agnostic. This could probably be refactored further to use helper classes instead, and a future commit may do that, however an initial attempt to do that was proving even more invasive, such that this approach was deemed more manageable. While we're at it, add 'const' in more places where possible.
1 parent 6c66340
FindBLAS.cmake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindBLAS
--------
Find Basic Linear Algebra Subprograms (BLAS) library
This module finds an installed Fortran library that implements the
`BLAS linear-algebra interface`_.
At least one of the ``C``, ``CXX``, or ``Fortran`` languages must be enabled.
.. _`BLAS linear-algebra interface`: https://netlib.org/blas/
Input Variables
^^^^^^^^^^^^^^^
The following variables may be set to influence this module's behavior:
``BLA_STATIC``
if ``ON`` use static linkage
``BLA_VENDOR``
Set to one of the :ref:`BLAS/LAPACK Vendors` to search for BLAS only
from the specified vendor. If not set, all vendors are considered.
``BLA_F95``
if ``ON`` tries to find the BLAS95 interfaces
``BLA_PREFER_PKGCONFIG``
.. versionadded:: 3.11
if set ``pkg-config`` will be used to search for a BLAS library first
and if one is found that is preferred
``BLA_PKGCONFIG_BLAS``
.. versionadded:: 3.25
If set, the ``pkg-config`` method will look for this module name instead of
just ``blas``.
``BLA_SIZEOF_INTEGER``
.. versionadded:: 3.22
Specify the BLAS/LAPACK library integer size:
``4``
Search for a BLAS/LAPACK with 32-bit integer interfaces.
``8``
Search for a BLAS/LAPACK with 64-bit integer interfaces.
``ANY``
Search for any BLAS/LAPACK.
Most likely, a BLAS/LAPACK with 32-bit integer interfaces will be found.
Imported targets
^^^^^^^^^^^^^^^^
This module defines the following :prop_tgt:`IMPORTED` targets:
``BLAS::BLAS``
.. versionadded:: 3.18
The libraries to use for BLAS, if found.
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables:
``BLAS_FOUND``
library implementing the BLAS interface is found
``BLAS_LINKER_FLAGS``
uncached list of required linker flags (excluding ``-l`` and ``-L``).
``BLAS_LIBRARIES``
uncached list of libraries (using full path name) to link against
to use BLAS (may be empty if compiler implicitly links BLAS)
``BLAS95_LIBRARIES``
uncached list of libraries (using full path name) to link against
to use BLAS95 interface
``BLAS95_FOUND``
library implementing the BLAS95 interface is found
.. _`BLAS/LAPACK Vendors`:
BLAS/LAPACK Vendors
^^^^^^^^^^^^^^^^^^^
``Generic``
Generic reference implementation
``ACML``, ``ACML_MP``, ``ACML_GPU``
AMD Core Math Library
``AOCL``, ``AOCL_mt``
.. versionadded:: 3.27
AMD Optimizing CPU Libraries
``Apple``, ``NAS``
Apple BLAS (Accelerate), and Apple NAS (vecLib)
``Arm``, ``Arm_mp``, ``Arm_ilp64``, ``Arm_ilp64_mp``
.. versionadded:: 3.18
Arm Performance Libraries
``ATLAS``
Automatically Tuned Linear Algebra Software
``CXML``, ``DXML``
Compaq/Digital Extended Math Library
``EML``, ``EML_mt``
.. versionadded:: 3.20
Elbrus Math Library
``FLAME``
.. versionadded:: 3.11
BLIS Framework
``FlexiBLAS``
.. versionadded:: 3.19
``Fujitsu_SSL2``, ``Fujitsu_SSL2BLAMP``, ``Fujitsu_SSL2SVE``, ``Fujitsu_SSL2BLAMPSVE``
.. versionadded:: 3.20
Fujitsu SSL2 serial and parallel blas/lapack with SVE instructions
``Goto``
GotoBLAS
``IBMESSL``, ``IBMESSL_SMP``
IBM Engineering and Scientific Subroutine Library
``Intel``
Intel MKL 32 bit and 64 bit obsolete versions
``Intel10_32``
Intel MKL v10 32 bit, threaded code
``Intel10_64lp``
Intel MKL v10+ 64 bit, threaded code, lp64 model
``Intel10_64lp_seq``
Intel MKL v10+ 64 bit, sequential code, lp64 model
``Intel10_64ilp``
.. versionadded:: 3.13
Intel MKL v10+ 64 bit, threaded code, ilp64 model
``Intel10_64ilp_seq``
.. versionadded:: 3.13
Intel MKL v10+ 64 bit, sequential code, ilp64 model
``Intel10_64_dyn``
.. versionadded:: 3.17
Intel MKL v10+ 64 bit, single dynamic library
``libblastrampoline``
.. versionadded:: 3.30
A BLAS/LAPACK demuxing library using PLT trampolines
``NVHPC``
.. versionadded:: 3.21
NVIDIA HPC SDK
``OpenBLAS``
.. versionadded:: 3.6
``PhiPACK``
Portable High Performance ANSI C (PHiPAC)
``SCSL``, ``SCSL_mp``
Scientific Computing Software Library
``SGIMATH``
SGI Scientific Mathematical Library
``SunPerf``
Sun Performance Library
.. _`Intel MKL`:
Intel MKL
^^^^^^^^^
To use the Intel MKL implementation of BLAS, a project must enable at least
one of the ``C`` or ``CXX`` languages. Set ``BLA_VENDOR`` to an Intel MKL
variant either on the command-line as ``-DBLA_VENDOR=Intel10_64lp`` or in
project code:
.. code-block:: cmake
set(BLA_VENDOR Intel10_64lp)
find_package(BLAS)
In order to build a project using Intel MKL, and end user must first
establish an Intel MKL environment:
Intel oneAPI
Source the full Intel environment script:
.. code-block:: shell
. /opt/intel/oneapi/setvars.sh
Or, source the MKL component environment script:
.. code-block:: shell
. /opt/intel/oneapi/mkl/latest/env/vars.sh
Intel Classic
Source the full Intel environment script:
.. code-block:: shell
. /opt/intel/bin/compilervars.sh intel64
Or, source the MKL component environment script:
.. code-block:: shell
. /opt/intel/mkl/bin/mklvars.sh intel64
The above environment scripts set the ``MKLROOT`` environment variable
to the top of the MKL installation. They also add the location of the
runtime libraries to the dynamic library loader environment variable for
your platform (e.g. ``LD_LIBRARY_PATH``). This is necessary for programs
linked against MKL to run.
.. note::
As of Intel oneAPI 2021.2, loading only the MKL component does not
make all of its dependencies available. In particular, the ``iomp5``
library must be available separately, or provided by also loading
the compiler component environment:
.. code-block:: shell
. /opt/intel/oneapi/compiler/latest/env/vars.sh
#]=======================================================================]
# The approach follows that of the ``autoconf`` macro file, ``acx_blas.m4``
# (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_blas.html).
# Check the language being used
if(NOT (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED OR CMAKE_Fortran_COMPILER_LOADED))
if(BLAS_FIND_REQUIRED)
message(FATAL_ERROR "FindBLAS requires Fortran, C, or C++ to be enabled.")
else()
message(STATUS "Looking for BLAS... - NOT found (Unsupported languages)")
return()
endif()
endif()
function(_add_blas_target)
if(BLAS_FOUND AND NOT TARGET BLAS::BLAS)
add_library(BLAS::BLAS INTERFACE IMPORTED)
if(BLAS_LIBRARIES)
set_target_properties(BLAS::BLAS PROPERTIES
INTERFACE_LINK_LIBRARIES "${BLAS_LIBRARIES}"
)
endif()
if(BLAS_LINKER_FLAGS)
set_target_properties(BLAS::BLAS PROPERTIES
INTERFACE_LINK_OPTIONS "${BLAS_LINKER_FLAGS}"
)
endif()
endif()
endfunction()
if(CMAKE_Fortran_COMPILER_LOADED)
include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranFunctionExists.cmake)
else()
include(${CMAKE_CURRENT_LIST_DIR}/CheckFunctionExists.cmake)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
if(BLA_PREFER_PKGCONFIG)
if(NOT BLA_PKGCONFIG_BLAS)
set(BLA_PKGCONFIG_BLAS "blas")
endif()
find_package(PkgConfig QUIET)
pkg_check_modules(PKGC_BLAS QUIET ${BLA_PKGCONFIG_BLAS})
if(PKGC_BLAS_FOUND)
set(BLAS_FOUND ${PKGC_BLAS_FOUND})
set(BLAS_LIBRARIES "${PKGC_BLAS_LINK_LIBRARIES}")
_add_blas_target()
return()
endif()
endif()
# TODO: move this stuff to a separate module
function(CHECK_BLAS_LIBRARIES LIBRARIES _prefix _name _flags _list _deps _addlibdir _subdirs)
# This function checks for the existence of the combination of libraries
# given by _list. If the combination is found, this checks whether can link
# against that library combination using the name of a routine given by _name
# using the linker flags given by _flags. If the combination of libraries is
# found and passes the link test, ${LIBRARIES} is set to the list of complete
# library paths that have been found. Otherwise, ${LIBRARIES} is set to FALSE.
set(_libraries_work TRUE)
set(_libraries)
set(_combined_name)
if(BLA_STATIC)
if(WIN32)
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
else()
set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
endif()
else()
if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
# for ubuntu's libblas3gf and liblapack3gf packages
set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
endif()
endif()
set(_extaddlibdir "${_addlibdir}")
if(WIN32)
list(APPEND _extaddlibdir ENV LIB)
elseif(APPLE)
list(APPEND _extaddlibdir ENV DYLD_LIBRARY_PATH)
else()
list(APPEND _extaddlibdir ENV LD_LIBRARY_PATH)
endif()
list(APPEND _extaddlibdir "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
foreach(_library ${_list})
if(_library MATCHES "^-")
# Respect linker flags as-is (required by MKL)
list(APPEND _libraries "${_library}")
else()
string(REGEX REPLACE "[^A-Za-z0-9]" "_" _lib_var "${_library}")
string(APPEND _combined_name "_${_lib_var}")
if(NOT "${_deps}" STREQUAL "")
string(APPEND _combined_name "_deps")
endif()
if(_libraries_work)
find_library(${_prefix}_${_lib_var}_LIBRARY
NAMES ${_library}
NAMES_PER_DIR
PATHS ${_extaddlibdir}
PATH_SUFFIXES ${_subdirs}
)
mark_as_advanced(${_prefix}_${_lib_var}_LIBRARY)
list(APPEND _libraries ${${_prefix}_${_lib_var}_LIBRARY})
set(_libraries_work ${${_prefix}_${_lib_var}_LIBRARY})
endif()
endif()
endforeach()
foreach(_flag ${_flags})
string(REGEX REPLACE "[^A-Za-z0-9]" "_" _flag_var "${_flag}")
string(APPEND _combined_name "_${_flag_var}")
endforeach()
if(_libraries_work)
# Test this combination of libraries.
set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${_libraries} ${_deps})
set(CMAKE_REQUIRED_QUIET ${BLAS_FIND_QUIETLY})
if(CMAKE_Fortran_COMPILER_LOADED)
check_fortran_function_exists("${_name}" ${_prefix}${_combined_name}_WORKS)
else()
check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
endif()
set(CMAKE_REQUIRED_LIBRARIES)
set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
endif()
if(_libraries_work)
if("${_list}" STREQUAL "")
set(_libraries "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES")
else()
list(APPEND _libraries ${_deps})
endif()
else()
set(_libraries FALSE)
endif()
set(${LIBRARIES} "${_libraries}" PARENT_SCOPE)
endfunction()
set(BLAS_LINKER_FLAGS)
set(BLAS_LIBRARIES)
set(BLAS95_LIBRARIES)
set(_blas_fphsa_req_var BLAS_LIBRARIES)
if(NOT BLA_VENDOR)
if(NOT "$ENV{BLA_VENDOR}" STREQUAL "")
set(BLA_VENDOR "$ENV{BLA_VENDOR}")
else()
set(BLA_VENDOR "All")
endif()
endif()
if(NOT BLA_SIZEOF_INTEGER)
# in the reality we do not know which API of BLAS/LAPACK is masked in library
set(_blas_sizeof_integer "ANY")
elseif((BLA_SIZEOF_INTEGER STREQUAL "ANY") OR
(BLA_SIZEOF_INTEGER STREQUAL "4") OR
(BLA_SIZEOF_INTEGER STREQUAL "8"))
set(_blas_sizeof_integer ${BLA_SIZEOF_INTEGER})
else()
message(FATAL_ERROR "BLA_SIZEOF_INTEGER can have only <no value>, ANY, 4, or 8 values")
endif()
# Implicitly linked BLAS libraries?
if(BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
""
""
""
""
)
endif()
if(BLAS_WORKS)
# Give a more helpful "found" message
set(BLAS_WORKS "implicitly linked")
set(_blas_fphsa_req_var BLAS_WORKS)
endif()
endif()
# BLAS in the Intel MKL 10+ library?
if(BLA_VENDOR MATCHES "Intel" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
if(CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED)
# System-specific settings
if(WIN32)
if(BLA_STATIC)
set(BLAS_mkl_DLL_SUFFIX "")
else()
set(BLAS_mkl_DLL_SUFFIX "_dll")
endif()
else()
if(BLA_STATIC)
set(BLAS_mkl_START_GROUP "-Wl,--start-group")
set(BLAS_mkl_END_GROUP "-Wl,--end-group")
else()
set(BLAS_mkl_START_GROUP "")
set(BLAS_mkl_END_GROUP "")
endif()
# Switch to GNU Fortran support layer if needed (but not on Apple, where MKL does not provide it)
if(CMAKE_Fortran_COMPILER_LOADED AND (CMAKE_Fortran_COMPILER_ID STREQUAL "GNU" OR CMAKE_Fortran_COMPILER_ID STREQUAL "LCC") AND NOT APPLE)
set(BLAS_mkl_INTFACE "gf")
set(BLAS_mkl_THREADING "gnu")
set(BLAS_mkl_OMP "gomp")
else()
set(BLAS_mkl_INTFACE "intel")
set(BLAS_mkl_THREADING "intel")
set(BLAS_mkl_OMP "iomp5")
endif()
set(BLAS_mkl_LM "-lm")
set(BLAS_mkl_LDL "-ldl")
endif()
if(BLAS_FIND_QUIETLY OR NOT BLAS_FIND_REQUIRED)
find_package(Threads)
else()
find_package(Threads REQUIRED)
endif()
if(_blas_sizeof_integer EQUAL 8)
set(BLAS_mkl_ILP_MODE "ilp64")
elseif(_blas_sizeof_integer EQUAL 4)
set(BLAS_mkl_ILP_MODE "lp64")
else()
if(BLA_VENDOR MATCHES "_64ilp")
set(BLAS_mkl_ILP_MODE "ilp64")
else()
set(BLAS_mkl_ILP_MODE "lp64")
endif()
endif()
set(BLAS_SEARCH_LIBS "")
if(BLA_F95)
set(BLAS_mkl_SEARCH_SYMBOL "sgemm_f95")
set(_BLAS_LIBRARIES BLAS95_LIBRARIES)
if(WIN32)
# Find the main file (32-bit or 64-bit)
set(BLAS_SEARCH_LIBS_WIN_MAIN "")
if(BLA_VENDOR STREQUAL "Intel10_32" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_MAIN
"mkl_blas95${BLAS_mkl_DLL_SUFFIX} mkl_intel_c${BLAS_mkl_DLL_SUFFIX}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_MAIN
"mkl_blas95_${BLAS_mkl_ILP_MODE}${BLAS_mkl_DLL_SUFFIX} mkl_intel_${BLAS_mkl_ILP_MODE}${BLAS_mkl_DLL_SUFFIX}")
endif()
# Add threading/sequential libs
set(BLAS_SEARCH_LIBS_WIN_THREAD "")
if(BLA_VENDOR MATCHES "^Intel10_64i?lp$" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"libguide40 mkl_intel_thread${BLAS_mkl_DLL_SUFFIX}")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"libiomp5md mkl_intel_thread${BLAS_mkl_DLL_SUFFIX}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp_seq$" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"mkl_sequential${BLAS_mkl_DLL_SUFFIX}")
endif()
# Cartesian product of the above
foreach(MAIN ${BLAS_SEARCH_LIBS_WIN_MAIN})
foreach(THREAD ${BLAS_SEARCH_LIBS_WIN_THREAD})
list(APPEND BLAS_SEARCH_LIBS
"${MAIN} ${THREAD} mkl_core${BLAS_mkl_DLL_SUFFIX}")
endforeach()
endforeach()
else()
if(BLA_VENDOR STREQUAL "Intel10_32" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS
"mkl_blas95 mkl_${BLAS_mkl_INTFACE} mkl_${BLAS_mkl_THREADING}_thread mkl_core guide")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_blas95 mkl_${BLAS_mkl_INTFACE} mkl_${BLAS_mkl_THREADING}_thread mkl_core ${BLAS_mkl_END_GROUP} ${BLAS_mkl_OMP}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp$" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS
"mkl_blas95 mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_THREADING}_thread mkl_core guide")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_blas95_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_THREADING}_thread mkl_core ${BLAS_mkl_END_GROUP} ${BLAS_mkl_OMP}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp_seq$" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_blas95_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_sequential mkl_core ${BLAS_mkl_END_GROUP}")
endif()
endif()
else()
set(BLAS_mkl_SEARCH_SYMBOL sgemm)
set(_BLAS_LIBRARIES BLAS_LIBRARIES)
if(WIN32)
# Find the main file (32-bit or 64-bit)
set(BLAS_SEARCH_LIBS_WIN_MAIN "")
if(BLA_VENDOR STREQUAL "Intel10_32" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_MAIN
"mkl_intel_c${BLAS_mkl_DLL_SUFFIX}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_MAIN
"mkl_intel_${BLAS_mkl_ILP_MODE}${BLAS_mkl_DLL_SUFFIX}")
endif()
# Add threading/sequential libs
set(BLAS_SEARCH_LIBS_WIN_THREAD "")
if(BLA_VENDOR STREQUAL "Intel10_32" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"libiomp5md mkl_intel_thread${BLAS_mkl_DLL_SUFFIX}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp$" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"libguide40 mkl_intel_thread${BLAS_mkl_DLL_SUFFIX}")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"libiomp5md mkl_intel_thread${BLAS_mkl_DLL_SUFFIX}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp_seq$" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS_WIN_THREAD
"mkl_sequential${BLAS_mkl_DLL_SUFFIX}")
endif()
# Cartesian product of the above
foreach(MAIN ${BLAS_SEARCH_LIBS_WIN_MAIN})
foreach(THREAD ${BLAS_SEARCH_LIBS_WIN_THREAD})
list(APPEND BLAS_SEARCH_LIBS
"${MAIN} ${THREAD} mkl_core${BLAS_mkl_DLL_SUFFIX}")
endforeach()
endforeach()
else()
if(BLA_VENDOR STREQUAL "Intel10_32" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS
"mkl_${BLAS_mkl_INTFACE} mkl_${BLAS_mkl_THREADING}_thread mkl_core guide")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_${BLAS_mkl_INTFACE} mkl_${BLAS_mkl_THREADING}_thread mkl_core ${BLAS_mkl_END_GROUP} ${BLAS_mkl_OMP}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp$" OR BLA_VENDOR STREQUAL "All")
# old version
list(APPEND BLAS_SEARCH_LIBS
"mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_THREADING}_thread mkl_core guide")
# mkl >= 10.3
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_${BLAS_mkl_THREADING}_thread mkl_core ${BLAS_mkl_END_GROUP} ${BLAS_mkl_OMP}")
endif()
if(BLA_VENDOR MATCHES "^Intel10_64i?lp_seq$" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS
"${BLAS_mkl_START_GROUP} mkl_${BLAS_mkl_INTFACE}_${BLAS_mkl_ILP_MODE} mkl_sequential mkl_core ${BLAS_mkl_END_GROUP}")
endif()
#older versions of intel mkl libs
if(BLA_VENDOR STREQUAL "Intel" OR BLA_VENDOR STREQUAL "All")
list(APPEND BLAS_SEARCH_LIBS
"mkl")
list(APPEND BLAS_SEARCH_LIBS
"mkl_ia32")
list(APPEND BLAS_SEARCH_LIBS
"mkl_em64t")
endif()
endif()
endif()
if(BLA_VENDOR MATCHES "^Intel10_64_dyn$" OR BLA_VENDOR STREQUAL "All")
# mkl >= 10.3 with single dynamic library
list(APPEND BLAS_SEARCH_LIBS
"mkl_rt")
endif()
# MKL uses a multitude of partially platform-specific subdirectories:
if(BLA_VENDOR STREQUAL "Intel10_32")
set(BLAS_mkl_ARCH_NAME "ia32")
else()
set(BLAS_mkl_ARCH_NAME "intel64")
endif()
if(WIN32)
set(BLAS_mkl_OS_NAME "win")
elseif(APPLE)
set(BLAS_mkl_OS_NAME "mac")
else()
set(BLAS_mkl_OS_NAME "lin")
endif()
if(DEFINED ENV{MKLROOT})
file(TO_CMAKE_PATH "$ENV{MKLROOT}" BLAS_mkl_MKLROOT)
# If MKLROOT points to the subdirectory 'mkl', use the parent directory instead
# so we can better detect other relevant libraries in 'compiler' or 'tbb':
get_filename_component(BLAS_mkl_MKLROOT_LAST_DIR "${BLAS_mkl_MKLROOT}" NAME)
if(BLAS_mkl_MKLROOT_LAST_DIR STREQUAL "mkl")
get_filename_component(BLAS_mkl_MKLROOT "${BLAS_mkl_MKLROOT}" DIRECTORY)
endif()
endif()
set(BLAS_mkl_LIB_PATH_SUFFIXES
"compiler/lib" "compiler/lib/${BLAS_mkl_ARCH_NAME}_${BLAS_mkl_OS_NAME}"
"compiler/lib/${BLAS_mkl_ARCH_NAME}"
"mkl/lib" "mkl/lib/${BLAS_mkl_ARCH_NAME}_${BLAS_mkl_OS_NAME}"
"mkl/lib/${BLAS_mkl_ARCH_NAME}"
"lib" "lib/${BLAS_mkl_ARCH_NAME}_${BLAS_mkl_OS_NAME}"
"lib/${BLAS_mkl_ARCH_NAME}"
)
foreach(_search ${BLAS_SEARCH_LIBS})
string(REPLACE " " ";" _search ${_search})
if(NOT ${_BLAS_LIBRARIES})
check_blas_libraries(
${_BLAS_LIBRARIES}
BLAS
${BLAS_mkl_SEARCH_SYMBOL}
""
"${_search}"
"${CMAKE_THREAD_LIBS_INIT};${BLAS_mkl_LM};${BLAS_mkl_LDL}"
"${BLAS_mkl_MKLROOT}"
"${BLAS_mkl_LIB_PATH_SUFFIXES}"
)
endif()
endforeach()
unset(_search)
unset(BLAS_mkl_ILP_MODE)
unset(BLAS_mkl_INTFACE)
unset(BLAS_mkl_THREADING)
unset(BLAS_mkl_OMP)
unset(BLAS_mkl_DLL_SUFFIX)
unset(BLAS_mkl_LM)
unset(BLAS_mkl_LDL)
unset(BLAS_mkl_MKLROOT)
unset(BLAS_mkl_MKLROOT_LAST_DIR)
unset(BLAS_mkl_ARCH_NAME)
unset(BLAS_mkl_OS_NAME)
unset(BLAS_mkl_LIB_PATH_SUFFIXES)
endif()
endif()
endif()
if(BLA_F95)
find_package_handle_standard_args(BLAS REQUIRED_VARS BLAS95_LIBRARIES)
set(BLAS95_FOUND ${BLAS_FOUND})
if(BLAS_FOUND)
set(BLAS_LIBRARIES "${BLAS95_LIBRARIES}")
endif()
endif()
# gotoblas? (http://www.tacc.utexas.edu/tacc-projects/gotoblas2)
if(BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"goto2"
""
""
""
)
endif()
endif()
# FlexiBLAS? (http://www.mpi-magdeburg.mpg.de/mpcsc/software/FlexiBLAS/)
if(BLA_VENDOR STREQUAL "FlexiBLAS" OR BLA_VENDOR STREQUAL "All")
set(_blas_flexiblas_lib "flexiblas")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_flexiblas_lib "64")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_flexiblas_lib}"
""
""
""
)
endif()
unset(_blas_flexiblas_lib)
endif()
# OpenBLAS? (http://www.openblas.net)
if(BLA_VENDOR STREQUAL "OpenBLAS" OR BLA_VENDOR STREQUAL "All")
set(_blas_openblas_lib "openblas")
if(_blas_sizeof_integer EQUAL 8)
if(MINGW)
string(APPEND _blas_openblas_lib "_64")
else()
string(APPEND _blas_openblas_lib "64")
endif()
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_openblas_lib}"
""
""
""
)
endif()
if(NOT BLAS_LIBRARIES AND (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED))
if(BLAS_FIND_QUIETLY OR NOT BLAS_FIND_REQUIRED)
find_package(Threads)
else()
find_package(Threads REQUIRED)
endif()
set(_threadlibs "${CMAKE_THREAD_LIBS_INIT}")
if(BLA_STATIC)
if (CMAKE_C_COMPILER_LOADED)
find_package(OpenMP QUIET COMPONENTS C)
list(PREPEND _threadlibs "${OpenMP_C_LIBRARIES}")
elseif(CMAKE_CXX_COMPILER_LOADED)
find_package(OpenMP QUIET COMPONENTS CXX)
list(PREPEND _threadlibs "${OpenMP_CXX_LIBRARIES}")
endif()
endif()
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_openblas_lib}"
"${_threadlibs}"
""
""
)
unset(_threadlibs)
endif()
unset(_blas_openblas_lib)
endif()
# ArmPL blas library? (https://developer.arm.com/tools-and-software/server-and-hpc/compile/arm-compiler-for-linux/arm-performance-libraries)
if(BLA_VENDOR MATCHES "Arm" OR BLA_VENDOR STREQUAL "All")
# Check for 64bit Integer support
if(_blas_sizeof_integer EQUAL 8)
set(_blas_armpl_lib "armpl_ilp64")
elseif(_blas_sizeof_integer EQUAL 4)
set(_blas_armpl_lib "armpl_lp64")
else()
if(BLA_VENDOR MATCHES "_ilp64")
set(_blas_armpl_lib "armpl_ilp64")
else()
set(_blas_armpl_lib "armpl_lp64")
endif()
endif()
# Check for OpenMP support, VIA BLA_VENDOR of Arm_mp or Arm_ipl64_mp
if(BLA_VENDOR MATCHES "_mp")
string(APPEND _blas_armpl_lib "_mp")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_armpl_lib}"
""
""
""
)
endif()
unset(_blas_armpl_lib)
endif()
# FLAME's blis library? (https://github.com/flame/blis)
if(BLA_VENDOR STREQUAL "FLAME" OR BLA_VENDOR STREQUAL "All")
set(_blas_flame_lib "blis")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_flame_lib "64")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_flame_lib}"
""
""
""
)
endif()
unset(_blas_flame_lib)
endif()
# AOCL's blis library? (https://developer.amd.com/amd-aocl/)
if(BLA_VENDOR MATCHES "AOCL" OR BLA_VENDOR STREQUAL "All")
set(_blas_aocl_lib "blis")
if(_blas_sizeof_integer EQUAL 8)
set(_blas_aocl_subdir "ILP64")
else()
set(_blas_aocl_subdir "LP64")
endif()
# Check for multi-threaded support
if(BLA_VENDOR MATCHES "_mt")
string(APPEND _blas_aocl_lib "-mt")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_aocl_lib}"
""
""
"${_blas_aocl_subdir}"
)
endif()
unset(_blas_aocl_lib)
unset(_blas_aocl_subdir)
endif()
# BLAS in the ATLAS library? (http://math-atlas.sourceforge.net/)
if(BLA_VENDOR STREQUAL "ATLAS" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
dgemm
""
"blas;f77blas;atlas"
""
""
""
)
endif()
endif()
# BLAS in PhiPACK libraries? (requires generic BLAS lib, too)
if(BLA_VENDOR STREQUAL "PhiPACK" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"sgemm;dgemm;blas"
""
""
""
)
endif()
endif()
# BLAS in Alpha CXML library?
if(BLA_VENDOR STREQUAL "CXML" OR BLA_VENDOR STREQUAL "All")
if(_blas_sizeof_integer EQUAL 8)
if(BLA_VENDOR STREQUAL "CXML")
message(FATAL_ERROR "CXML does not support Int64 type")
endif()
else()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"cxml"
""
""
""
)
endif()
endif()
endif()
# BLAS in Alpha DXML library? (now called CXML, see above)
if(BLA_VENDOR STREQUAL "DXML" OR BLA_VENDOR STREQUAL "All")
if(_blas_sizeof_integer EQUAL 8)
if(BLA_VENDOR STREQUAL "DXML")
message(FATAL_ERROR "DXML does not support Int64 type")
endif()
else()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"dxml"
""
""
""
)
endif()
endif()
endif()
# BLAS in Sun Performance library?
if(BLA_VENDOR STREQUAL "SunPerf" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
"-xlic_lib=sunperf"
"sunperf;sunmath"
""
""
""
)
if(BLAS_LIBRARIES)
set(BLAS_LINKER_FLAGS "-xlic_lib=sunperf")
endif()
endif()
endif()
# BLAS in SCSL library? (SGI/Cray Scientific Library)
if(BLA_VENDOR MATCHES "SCSL" OR BLA_VENDOR STREQUAL "All")
set(_blas_scsl_lib "scs")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_scsl_lib "_i8")
endif()
if(BLA_VENDOR MATCHES "_mp")
string(APPEND _blas_scsl_lib "_mp")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_scsl_lib}"
""
""
""
)
endif()
unset(_blas_scsl_lib)
endif()
# BLAS in SGIMATH library?
if(BLA_VENDOR STREQUAL "SGIMATH" OR BLA_VENDOR STREQUAL "All")
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"complib.sgimath"
""
""
""
)
endif()
endif()
# BLAS in IBM ESSL library?
if(BLA_VENDOR MATCHES "IBMESSL" OR BLA_VENDOR STREQUAL "All")
set(_blas_essl_lib "essl")
if(BLA_VENDOR MATCHES "_SMP")
string(APPEND _blas_essl_lib "smp")
endif()
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_essl_lib "6464")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_essl_lib}"
""
""
""
)
endif()
unset(_blas_essl_lib)
endif()
# BLAS in acml library?
if(BLA_VENDOR MATCHES "ACML" OR BLA_VENDOR STREQUAL "All")
if(((BLA_VENDOR STREQUAL "ACML") AND (NOT BLAS_ACML_LIB_DIRS)) OR
((BLA_VENDOR STREQUAL "ACML_MP") AND (NOT BLAS_ACML_MP_LIB_DIRS)) OR
((BLA_VENDOR STREQUAL "ACML_GPU") AND (NOT BLAS_ACML_GPU_LIB_DIRS))
)
# try to find acml in "standard" paths
if(WIN32)
file(GLOB _ACML_ROOT "C:/AMD/acml*/ACML-EULA.txt")
else()
file(GLOB _ACML_ROOT "/opt/acml*/ACML-EULA.txt")
endif()
if(WIN32)
file(GLOB _ACML_GPU_ROOT "C:/AMD/acml*/GPGPUexamples")
else()
file(GLOB _ACML_GPU_ROOT "/opt/acml*/GPGPUexamples")
endif()
list(GET _ACML_ROOT 0 _ACML_ROOT)
list(GET _ACML_GPU_ROOT 0 _ACML_GPU_ROOT)
if(_ACML_ROOT)
get_filename_component(_ACML_ROOT ${_ACML_ROOT} PATH)
if(_blas_sizeof_integer EQUAL 8)
set(_ACML_PATH_SUFFIX "_int64")
else()
set(_ACML_PATH_SUFFIX "")
endif()
if(CMAKE_Fortran_COMPILER_ID STREQUAL "Intel")
set(_ACML_COMPILER32 "ifort32")
set(_ACML_COMPILER64 "ifort64")
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "IntelLLVM")
# 32-bit not supported
set(_ACML_COMPILER64 "ifx")
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "SunPro")
set(_ACML_COMPILER32 "sun32")
set(_ACML_COMPILER64 "sun64")
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "PGI")
set(_ACML_COMPILER32 "pgi32")
if(WIN32)
set(_ACML_COMPILER64 "win64")
else()
set(_ACML_COMPILER64 "pgi64")
endif()
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "Open64")
# 32 bit builds not supported on Open64 but for code simplicity
# We'll just use the same directory twice
set(_ACML_COMPILER32 "open64_64")
set(_ACML_COMPILER64 "open64_64")
elseif(CMAKE_Fortran_COMPILER_ID STREQUAL "NAG")
set(_ACML_COMPILER32 "nag32")
set(_ACML_COMPILER64 "nag64")
else()
set(_ACML_COMPILER32 "gfortran32")
set(_ACML_COMPILER64 "gfortran64")
endif()
if(BLA_VENDOR STREQUAL "ACML_MP")
set(_ACML_MP_LIB_DIRS
"${_ACML_ROOT}/${_ACML_COMPILER32}_mp${_ACML_PATH_SUFFIX}/lib"
"${_ACML_ROOT}/${_ACML_COMPILER64}_mp${_ACML_PATH_SUFFIX}/lib")
else()
set(_ACML_LIB_DIRS
"${_ACML_ROOT}/${_ACML_COMPILER32}${_ACML_PATH_SUFFIX}/lib"
"${_ACML_ROOT}/${_ACML_COMPILER64}${_ACML_PATH_SUFFIX}/lib")
endif()
endif()
elseif(BLAS_${BLA_VENDOR}_LIB_DIRS)
set(_${BLA_VENDOR}_LIB_DIRS ${BLAS_${BLA_VENDOR}_LIB_DIRS})
endif()
if(BLA_VENDOR STREQUAL "ACML_MP")
foreach(BLAS_ACML_MP_LIB_DIRS ${_ACML_MP_LIB_DIRS})
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
"" "acml_mp;acml_mv" "" ${BLAS_ACML_MP_LIB_DIRS} ""
)
if(BLAS_LIBRARIES)
break()
endif()
endforeach()
elseif(BLA_VENDOR STREQUAL "ACML_GPU")
foreach(BLAS_ACML_GPU_LIB_DIRS ${_ACML_GPU_LIB_DIRS})
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
"" "acml;acml_mv;CALBLAS" "" ${BLAS_ACML_GPU_LIB_DIRS} ""
)
if(BLAS_LIBRARIES)
break()
endif()
endforeach()
else()
foreach(BLAS_ACML_LIB_DIRS ${_ACML_LIB_DIRS})
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
"" "acml;acml_mv" "" ${BLAS_ACML_LIB_DIRS} ""
)
if(BLAS_LIBRARIES)
break()
endif()
endforeach()
endif()
# Either acml or acml_mp should be in LD_LIBRARY_PATH but not both
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"acml;acml_mv"
""
""
""
)
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"acml_mp;acml_mv"
""
""
""
)
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"acml;acml_mv;CALBLAS"
""
""
""
)
endif()
endif() # ACML
# Apple BLAS library?
if(BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
if(_blas_sizeof_integer EQUAL 8)
if(BLA_VENDOR STREQUAL "Apple")
message(FATAL_ERROR "Accelerate Framework does not support Int64 type")
endif()
else()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
dgemm
""
"Accelerate"
""
""
""
)
endif()
endif()
endif()
# Apple NAS (vecLib) library?
if(BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
if(_blas_sizeof_integer EQUAL 8)
if(BLA_VENDOR STREQUAL "NAS")
message(FATAL_ERROR "Accelerate Framework does not support Int64 type")
endif()
else()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
dgemm
""
"vecLib"
""
""
""
)
endif()
endif()
endif()
# Elbrus Math Library?
if(BLA_VENDOR MATCHES "EML" OR BLA_VENDOR STREQUAL "All")
set(_blas_eml_lib "eml")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_eml_lib "_ilp64")
endif()
# Check for OpenMP support, VIA BLA_VENDOR of eml_mt
if(BLA_VENDOR MATCHES "_mt")
string(APPEND _blas_eml_lib "_mt")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_eml_lib}"
""
""
""
)
endif()
unset(_blas_eml_lib)
endif()
# Fujitsu SSL2 Library?
if(NOT BLAS_LIBRARIES
AND (BLA_VENDOR MATCHES "^Fujitsu_SSL2" OR BLA_VENDOR STREQUAL "All"))
set(_blas_fjlapack_lib "fjlapack")
set(_blas_fjlapack_flags "-Kopenmp")
if(BLA_VENDOR MATCHES "BLAMP")
string(APPEND _blas_fjlapack_lib "ex")
endif()
if(BLA_VENDOR MATCHES "SVE")
string(APPEND _blas_fjlapack_lib "sve")
endif()
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_fjlapack_lib "_ilp64")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
"${_blas_fjlapack_flags}"
"${_blas_fjlapack_lib}"
""
""
""
)
if(BLAS_LIBRARIES)
set(BLAS_LINKER_FLAGS ${_blas_fjlapack_flags})
endif()
endif()
unset(_blas_fjlapack_flags)
unset(_blas_fjlapack_lib)
endif()
# BLAS in nVidia HPC SDK? (https://developer.nvidia.com/hpc-sdk)
if(BLA_VENDOR STREQUAL "NVHPC" OR BLA_VENDOR STREQUAL "All")
set(_blas_nvhpc_lib "blas")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_nvhpc_lib "_ilp64")
elseif(_blas_sizeof_integer EQUAL 4)
string(APPEND _blas_nvhpc_lib "_lp64")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_nvhpc_lib}"
""
""
""
)
endif()
# an additional check for NVHPC 2020
# which does not have differentiation
# between lp64 and ilp64 modes
if(NOT BLAS_LIBRARIES AND NOT _blas_sizeof_integer EQUAL 8)
set(_blas_nvhpc_lib "blas")
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_nvhpc_lib}"
""
""
""
)
endif()
unset(_blas_nvhpc_lib)
endif()
# libblastrampoline? (https://github.com/JuliaLinearAlgebra/libblastrampoline/tree/main)
if(BLA_VENDOR STREQUAL "libblastrampoline" OR BLA_VENDOR STREQUAL "All")
set(_blas_libblastrampoline_lib "blastrampoline")
if(WIN32)
# Windows appends the version number to the library
string(APPEND _blas_libblastrampoline_lib "-5")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_libblastrampoline_lib}"
""
""
""
)
endif()
unset(_blas_libblastrampoline_lib)
endif()
# Generic BLAS library?
if(BLA_VENDOR STREQUAL "Generic" OR
BLA_VENDOR STREQUAL "All")
set(_blas_generic_lib "blas")
if(_blas_sizeof_integer EQUAL 8)
string(APPEND _blas_generic_lib "64")
endif()
if(NOT BLAS_LIBRARIES)
check_blas_libraries(
BLAS_LIBRARIES
BLAS
sgemm
""
"${_blas_generic_lib}"
""
""
""
)
endif()
unset(_blas_generic_lib)
endif()
# On compilers that implicitly link BLAS (i.e. CrayPrgEnv) we used a
# placeholder for empty BLAS_LIBRARIES to get through our logic above.
if(BLAS_LIBRARIES STREQUAL "BLAS_LIBRARIES-PLACEHOLDER-FOR-EMPTY-LIBRARIES")
set(BLAS_LIBRARIES "")
endif()
if(NOT BLA_F95)
find_package_handle_standard_args(BLAS REQUIRED_VARS ${_blas_fphsa_req_var})
endif()
_add_blas_target()
unset(_blas_fphsa_req_var)
unset(_blas_sizeof_integer)
unset(_BLAS_LIBRARIES)
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