555 lines
16 KiB
CMake
555 lines
16 KiB
CMake
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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# file Copyright.txt or https://cmake.org/licensing for details.
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#[=======================================================================[.rst:
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FindLAPACK
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----------
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Find Linear Algebra PACKage (LAPACK) library
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This module finds an installed Fortran library that implements the
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LAPACK linear-algebra interface (see http://www.netlib.org/lapack/).
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The approach follows that taken for the ``autoconf`` macro file,
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``acx_lapack.m4`` (distributed at
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http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
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Input Variables
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^^^^^^^^^^^^^^^
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The following variables may be set to influence this module's behavior:
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``BLA_STATIC``
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if ``ON`` use static linkage
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``BLA_VENDOR``
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If set, checks only the specified vendor, if not set checks all the
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possibilities. List of vendors valid in this module:
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* ``OpenBLAS``
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* ``FLAME``
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* ``Intel10_32`` (intel mkl v10 32 bit)
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* ``Intel10_64lp`` (intel mkl v10+ 64 bit, threaded code, lp64 model)
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* ``Intel10_64lp_seq`` (intel mkl v10+ 64 bit, sequential code, lp64 model)
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* ``Intel10_64ilp`` (intel mkl v10+ 64 bit, threaded code, ilp64 model)
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* ``Intel10_64ilp_seq`` (intel mkl v10+ 64 bit, sequential code, ilp64 model)
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* ``Intel10_64_dyn`` (intel mkl v10+ 64 bit, single dynamic library)
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* ``Intel`` (obsolete versions of mkl 32 and 64 bit)
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* ``ACML``
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* ``Apple``
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* ``NAS``
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* ``Arm``
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* ``Arm_mp``
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* ``Arm_ilp64``
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* ``Arm_ilp64_mp``
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* ``Generic``
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``BLA_F95``
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if ``ON`` tries to find the BLAS95/LAPACK95 interfaces
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Imported targets
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^^^^^^^^^^^^^^^^
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This module defines the following :prop_tgt:`IMPORTED` target:
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``LAPACK::LAPACK``
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The libraries to use for LAPACK, if found.
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Result Variables
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^^^^^^^^^^^^^^^^
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This module defines the following variables:
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``LAPACK_FOUND``
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library implementing the LAPACK interface is found
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``LAPACK_LINKER_FLAGS``
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uncached list of required linker flags (excluding ``-l`` and ``-L``).
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``LAPACK_LIBRARIES``
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uncached list of libraries (using full path name) to link against
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to use LAPACK
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``LAPACK95_LIBRARIES``
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uncached list of libraries (using full path name) to link against
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to use LAPACK95
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``LAPACK95_FOUND``
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library implementing the LAPACK95 interface is found
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.. note::
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C, CXX or Fortran must be enabled to detect a BLAS/LAPACK library.
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C or CXX must be enabled to use Intel Math Kernel Library (MKL).
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For example, to use Intel MKL libraries and/or Intel compiler:
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.. code-block:: cmake
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set(BLA_VENDOR Intel10_64lp)
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find_package(LAPACK)
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#]=======================================================================]
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# Check the language being used
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if(NOT (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED OR CMAKE_Fortran_COMPILER_LOADED))
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if(LAPACK_FIND_REQUIRED)
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message(FATAL_ERROR "FindLAPACK requires Fortran, C, or C++ to be enabled.")
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else()
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message(STATUS "Looking for LAPACK... - NOT found (Unsupported languages)")
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return()
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endif()
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endif()
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if(CMAKE_Fortran_COMPILER_LOADED)
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include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranFunctionExists.cmake)
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else()
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include(${CMAKE_CURRENT_LIST_DIR}/CheckFunctionExists.cmake)
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endif()
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include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
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cmake_push_check_state()
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set(CMAKE_REQUIRED_QUIET ${LAPACK_FIND_QUIETLY})
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set(LAPACK_FOUND FALSE)
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set(LAPACK95_FOUND FALSE)
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set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
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if(BLA_STATIC)
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if(WIN32)
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set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
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else()
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set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
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endif()
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else()
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if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
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# for ubuntu's libblas3gf and liblapack3gf packages
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set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
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endif()
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endif()
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# TODO: move this stuff to a separate module
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macro(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _threadlibs _addlibdir _subdirs _blas)
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# This macro checks for the existence of the combination of fortran libraries
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# given by _list. If the combination is found, this macro checks (using the
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# Check_Fortran_Function_Exists macro) whether can link against that library
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# combination using the name of a routine given by _name using the linker
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# flags given by _flags. If the combination of libraries is found and passes
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# the link test, LIBRARIES is set to the list of complete library paths that
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# have been found. Otherwise, LIBRARIES is set to FALSE.
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# N.B. _prefix is the prefix applied to the names of all cached variables that
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# are generated internally and marked advanced by this macro.
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# _addlibdir is a list of additional search paths. _subdirs is a list of path
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# suffixes to be used by find_library().
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set(_libraries_work TRUE)
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set(${LIBRARIES})
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set(_combined_name)
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set(_extaddlibdir "${_addlibdir}")
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if(WIN32)
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list(APPEND _extaddlibdir ENV LIB)
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elseif(APPLE)
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list(APPEND _extaddlibdir ENV DYLD_LIBRARY_PATH)
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else()
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list(APPEND _extaddlibdir ENV LD_LIBRARY_PATH)
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endif()
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list(APPEND _extaddlibdir "${CMAKE_C_IMPLICIT_LINK_DIRECTORIES}")
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foreach(_library ${_list})
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if(_library MATCHES "^-Wl,--(start|end)-group$")
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# Respect linker flags like --start/end-group (required by MKL)
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set(${LIBRARIES} ${${LIBRARIES}} "${_library}")
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else()
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set(_combined_name ${_combined_name}_${_library})
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if(_libraries_work)
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find_library(${_prefix}_${_library}_LIBRARY
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NAMES ${_library}
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PATHS ${_extaddlibdir}
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PATH_SUFFIXES ${_subdirs}
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)
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#message("DEBUG: find_library(${_library}) got ${${_prefix}_${_library}_LIBRARY}")
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mark_as_advanced(${_prefix}_${_library}_LIBRARY)
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set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
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set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
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endif()
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endif()
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endforeach()
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if(_libraries_work)
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# Test this combination of libraries.
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set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threadlibs})
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#message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
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if(CMAKE_Fortran_COMPILER_LOADED)
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check_fortran_function_exists("${_name}" ${_prefix}${_combined_name}_WORKS)
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else()
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check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
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endif()
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set(CMAKE_REQUIRED_LIBRARIES)
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set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
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endif()
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if(_libraries_work)
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if("${_list}${_blas}" STREQUAL "")
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set(${LIBRARIES} "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES")
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else()
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set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threadlibs})
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endif()
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else()
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set(${LIBRARIES} FALSE)
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endif()
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#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
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endmacro()
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set(LAPACK_LINKER_FLAGS)
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set(LAPACK_LIBRARIES)
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set(LAPACK95_LIBRARIES)
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if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
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find_package(BLAS)
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else()
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find_package(BLAS REQUIRED)
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endif()
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if(BLAS_FOUND)
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set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
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if(NOT $ENV{BLA_VENDOR} STREQUAL "")
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set(BLA_VENDOR $ENV{BLA_VENDOR})
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else()
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if(NOT BLA_VENDOR)
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set(BLA_VENDOR "All")
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endif()
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endif()
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# LAPACK in the Intel MKL 10+ library?
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if(BLA_VENDOR MATCHES "Intel" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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if(CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED)
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# System-specific settings
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if(NOT WIN32)
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set(LAPACK_mkl_LM "-lm")
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set(LAPACK_mkl_LDL "-ldl")
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endif()
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if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
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find_package(Threads)
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else()
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find_package(Threads REQUIRED)
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endif()
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if(BLA_VENDOR MATCHES "_64ilp")
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set(LAPACK_mkl_ILP_MODE "ilp64")
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else()
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set(LAPACK_mkl_ILP_MODE "lp64")
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endif()
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set(LAPACK_SEARCH_LIBS "")
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if(BLA_F95)
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set(LAPACK_mkl_SEARCH_SYMBOL "cheev_f95")
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set(_LIBRARIES LAPACK95_LIBRARIES)
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set(_BLAS_LIBRARIES ${BLAS95_LIBRARIES})
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# old
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list(APPEND LAPACK_SEARCH_LIBS
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"mkl_lapack95")
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# new >= 10.3
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list(APPEND LAPACK_SEARCH_LIBS
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"mkl_intel_c")
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list(APPEND LAPACK_SEARCH_LIBS
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"mkl_lapack95_${LAPACK_mkl_ILP_MODE}")
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else()
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set(LAPACK_mkl_SEARCH_SYMBOL "cheev")
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set(_LIBRARIES LAPACK_LIBRARIES)
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set(_BLAS_LIBRARIES ${BLAS_LIBRARIES})
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# old and new >= 10.3
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list(APPEND LAPACK_SEARCH_LIBS
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"mkl_lapack")
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endif()
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# MKL uses a multitude of partially platform-specific subdirectories:
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if(BLA_VENDOR STREQUAL "Intel10_32")
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set(LAPACK_mkl_ARCH_NAME "ia32")
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else()
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set(LAPACK_mkl_ARCH_NAME "intel64")
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endif()
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if(WIN32)
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set(LAPACK_mkl_OS_NAME "win")
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elseif(APPLE)
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set(LAPACK_mkl_OS_NAME "mac")
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else()
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set(LAPACK_mkl_OS_NAME "lin")
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endif()
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if(DEFINED ENV{MKLROOT})
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file(TO_CMAKE_PATH "$ENV{MKLROOT}" LAPACK_mkl_MKLROOT)
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# If MKLROOT points to the subdirectory 'mkl', use the parent directory instead
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# so we can better detect other relevant libraries in 'compiler' or 'tbb':
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get_filename_component(LAPACK_mkl_MKLROOT_LAST_DIR "${LAPACK_mkl_MKLROOT}" NAME)
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if(LAPACK_mkl_MKLROOT_LAST_DIR STREQUAL "mkl")
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get_filename_component(LAPACK_mkl_MKLROOT "${LAPACK_mkl_MKLROOT}" DIRECTORY)
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endif()
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endif()
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set(LAPACK_mkl_LIB_PATH_SUFFIXES
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"compiler/lib" "compiler/lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}"
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"mkl/lib" "mkl/lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}"
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"lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}")
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# First try empty lapack libs
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if(NOT ${_LIBRARIES})
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check_lapack_libraries(
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${_LIBRARIES}
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LAPACK
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${LAPACK_mkl_SEARCH_SYMBOL}
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""
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""
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"${CMAKE_THREAD_LIBS_INIT};${LAPACK_mkl_LM};${LAPACK_mkl_LDL}"
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"${LAPACK_mkl_MKLROOT}"
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"${LAPACK_mkl_LIB_PATH_SUFFIXES}"
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"${_BLAS_LIBRARIES}"
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)
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endif()
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# Then try the search libs
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foreach(IT ${LAPACK_SEARCH_LIBS})
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string(REPLACE " " ";" SEARCH_LIBS ${IT})
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if(NOT ${_LIBRARIES})
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check_lapack_libraries(
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${_LIBRARIES}
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LAPACK
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${LAPACK_mkl_SEARCH_SYMBOL}
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""
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"${SEARCH_LIBS}"
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"${CMAKE_THREAD_LIBS_INIT};${LAPACK_mkl_LM};${LAPACK_mkl_LDL}"
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"${LAPACK_mkl_MKLROOT}"
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"${LAPACK_mkl_LIB_PATH_SUFFIXES}"
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"${_BLAS_LIBRARIES}"
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)
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endif()
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endforeach()
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unset(LAPACK_mkl_ILP_MODE)
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unset(LAPACK_mkl_SEARCH_SYMBOL)
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unset(LAPACK_mkl_LM)
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unset(LAPACK_mkl_LDL)
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unset(LAPACK_mkl_MKLROOT)
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unset(LAPACK_mkl_ARCH_NAME)
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unset(LAPACK_mkl_OS_NAME)
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unset(LAPACK_mkl_LIB_PATH_SUFFIXES)
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endif()
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endif()
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endif()
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# gotoblas? (http://www.tacc.utexas.edu/tacc-projects/gotoblas2)
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if(BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"goto2"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# OpenBLAS? (http://www.openblas.net)
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if(BLA_VENDOR STREQUAL "OpenBLAS" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"openblas"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# ArmPL? (https://developer.arm.com/tools-and-software/server-and-hpc/compile/arm-compiler-for-linux/arm-performance-libraries)
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if(BLA_VENDOR MATCHES "Arm" OR BLA_VENDOR STREQUAL "All")
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# Check for 64bit Integer support
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if(BLA_VENDOR MATCHES "_ilp64")
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set(LAPACK_armpl_LIB "armpl_ilp64")
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else()
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set(LAPACK_armpl_LIB "armpl_lp64")
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endif()
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# Check for OpenMP support, VIA BLA_VENDOR of Arm_mp or Arm_ipl64_mp
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if(BLA_VENDOR MATCHES "_mp")
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set(LAPACK_armpl_LIB "${LAPACK_armpl_LIB}_mp")
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endif()
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"${LAPACK_armpl_LIB}"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# FLAME's blis library? (https://github.com/flame/blis)
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if(BLA_VENDOR STREQUAL "FLAME" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"flame"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# BLAS in acml library?
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if(BLA_VENDOR MATCHES "ACML" OR BLA_VENDOR STREQUAL "All")
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if(BLAS_LIBRARIES MATCHES ".+acml.+")
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set(LAPACK_LIBRARIES ${BLAS_LIBRARIES})
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endif()
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endif()
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# Apple LAPACK library?
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if(BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"Accelerate"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# Apple NAS (vecLib) library?
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if(BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"vecLib"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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# Generic LAPACK library?
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if(BLA_VENDOR STREQUAL "Generic" OR
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BLA_VENDOR STREQUAL "ATLAS" OR
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BLA_VENDOR STREQUAL "All")
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if(NOT LAPACK_LIBRARIES)
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check_lapack_libraries(
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LAPACK_LIBRARIES
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LAPACK
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cheev
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""
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"lapack"
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""
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""
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""
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"${BLAS_LIBRARIES}"
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)
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endif()
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endif()
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else()
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message(STATUS "LAPACK requires BLAS")
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endif()
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if(BLA_F95)
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|
if(LAPACK95_LIBRARIES)
|
|
set(LAPACK95_FOUND TRUE)
|
|
else()
|
|
set(LAPACK95_FOUND FALSE)
|
|
endif()
|
|
if(NOT LAPACK_FIND_QUIETLY)
|
|
if(LAPACK95_FOUND)
|
|
message(STATUS "A library with LAPACK95 API found.")
|
|
else()
|
|
if(LAPACK_FIND_REQUIRED)
|
|
message(FATAL_ERROR
|
|
"A required library with LAPACK95 API not found. Please specify library location."
|
|
)
|
|
else()
|
|
message(STATUS
|
|
"A library with LAPACK95 API not found. Please specify library location."
|
|
)
|
|
endif()
|
|
endif()
|
|
endif()
|
|
set(LAPACK_FOUND "${LAPACK95_FOUND}")
|
|
set(LAPACK_LIBRARIES "${LAPACK95_LIBRARIES}")
|
|
else()
|
|
if(LAPACK_LIBRARIES)
|
|
set(LAPACK_FOUND TRUE)
|
|
else()
|
|
set(LAPACK_FOUND FALSE)
|
|
endif()
|
|
|
|
if(NOT LAPACK_FIND_QUIETLY)
|
|
if(LAPACK_FOUND)
|
|
message(STATUS "A library with LAPACK API found.")
|
|
else()
|
|
if(LAPACK_FIND_REQUIRED)
|
|
message(FATAL_ERROR
|
|
"A required library with LAPACK API not found. Please specify library location."
|
|
)
|
|
else()
|
|
message(STATUS
|
|
"A library with LAPACK API not found. Please specify library location."
|
|
)
|
|
endif()
|
|
endif()
|
|
endif()
|
|
endif()
|
|
|
|
# On compilers that implicitly link LAPACK (such as ftn, cc, and CC on Cray HPC machines)
|
|
# we used a placeholder for empty LAPACK_LIBRARIES to get through our logic above.
|
|
if(LAPACK_LIBRARIES STREQUAL "LAPACK_LIBRARIES-PLACEHOLDER-FOR-EMPTY-LIBRARIES")
|
|
set(LAPACK_LIBRARIES "")
|
|
endif()
|
|
|
|
if(NOT TARGET LAPACK::LAPACK)
|
|
add_library(LAPACK::LAPACK INTERFACE IMPORTED)
|
|
set(_lapack_libs "${LAPACK_LIBRARIES}")
|
|
if(_lapack_libs AND TARGET BLAS::BLAS)
|
|
# remove the ${BLAS_LIBRARIES} from the interface and replace it
|
|
# with the BLAS::BLAS target
|
|
list(REMOVE_ITEM _lapack_libs "${BLAS_LIBRARIES}")
|
|
endif()
|
|
|
|
if(_lapack_libs)
|
|
set_target_properties(LAPACK::LAPACK PROPERTIES
|
|
INTERFACE_LINK_LIBRARIES "${_lapack_libs}"
|
|
)
|
|
endif()
|
|
unset(_lapack_libs)
|
|
endif()
|
|
|
|
cmake_pop_check_state()
|
|
set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
|