| # Distributed under the OSI-approved BSD 3-Clause License. See accompanying |
| # file Copyright.txt or https://cmake.org/licensing for details. |
| |
| #[=======================================================================[.rst: |
| FindLAPACK |
| ---------- |
| |
| Find Linear Algebra PACKage (LAPACK) library |
| |
| This module finds an installed Fortran library that implements the |
| LAPACK linear-algebra interface (see http://www.netlib.org/lapack/). |
| |
| The approach follows that taken for the ``autoconf`` macro file, |
| ``acx_lapack.m4`` (distributed at |
| http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html). |
| |
| Input Variables |
| ^^^^^^^^^^^^^^^ |
| |
| The following variables may be set to influence this module's behavior: |
| |
| ``BLA_STATIC`` |
| if ``ON`` use static linkage |
| |
| ``BLA_VENDOR`` |
| If set, checks only the specified vendor, if not set checks all the |
| possibilities. List of vendors valid in this module: |
| |
| * ``OpenBLAS`` |
| * ``FLAME`` |
| * ``Intel10_32`` (intel mkl v10 32 bit) |
| * ``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`` (intel mkl v10+ 64 bit, threaded code, ilp64 model) |
| * ``Intel10_64ilp_seq`` (intel mkl v10+ 64 bit, sequential code, ilp64 model) |
| * ``Intel10_64_dyn`` (intel mkl v10+ 64 bit, single dynamic library) |
| * ``Intel`` (obsolete versions of mkl 32 and 64 bit) |
| * ``ACML`` |
| * ``Apple`` |
| * ``NAS`` |
| * ``Generic`` |
| |
| ``BLA_F95`` |
| if ``ON`` tries to find the BLAS95/LAPACK95 interfaces |
| |
| Result Variables |
| ^^^^^^^^^^^^^^^^ |
| |
| This module defines the following variables: |
| |
| ``LAPACK_FOUND`` |
| library implementing the LAPACK interface is found |
| ``LAPACK_LINKER_FLAGS`` |
| uncached list of required linker flags (excluding ``-l`` and ``-L``). |
| ``LAPACK_LIBRARIES`` |
| uncached list of libraries (using full path name) to link against |
| to use LAPACK |
| ``LAPACK95_LIBRARIES`` |
| uncached list of libraries (using full path name) to link against |
| to use LAPACK95 |
| ``LAPACK95_FOUND`` |
| library implementing the LAPACK95 interface is found |
| |
| .. note:: |
| |
| C, CXX or Fortran must be enabled to detect a BLAS/LAPACK library. |
| C or CXX must be enabled to use Intel Math Kernel Library (MKL). |
| |
| For example, to use Intel MKL libraries and/or Intel compiler: |
| |
| .. code-block:: cmake |
| |
| set(BLA_VENDOR Intel10_64lp) |
| find_package(LAPACK) |
| #]=======================================================================] |
| |
| # Check the language being used |
| if(NOT (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED OR CMAKE_Fortran_COMPILER_LOADED)) |
| if(LAPACK_FIND_REQUIRED) |
| message(FATAL_ERROR "FindLAPACK requires Fortran, C, or C++ to be enabled.") |
| else() |
| message(STATUS "Looking for LAPACK... - NOT found (Unsupported languages)") |
| return() |
| endif() |
| endif() |
| |
| 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}/CMakePushCheckState.cmake) |
| |
| cmake_push_check_state() |
| set(CMAKE_REQUIRED_QUIET ${LAPACK_FIND_QUIETLY}) |
| |
| set(LAPACK_FOUND FALSE) |
| set(LAPACK95_FOUND FALSE) |
| |
| set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES}) |
| 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 ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf) |
| endif() |
| endif() |
| |
| # TODO: move this stuff to a separate module |
| |
| macro(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _threadlibs _addlibdir _subdirs _blas) |
| # This macro checks for the existence of the combination of fortran libraries |
| # given by _list. If the combination is found, this macro checks (using the |
| # Check_Fortran_Function_Exists macro) whether can link against that library |
| # combination using the name of a routine given by _name using the linker |
| # flags given by _flags. If the combination of libraries is found and passes |
| # the link test, LIBRARIES is set to the list of complete library paths that |
| # have been found. Otherwise, LIBRARIES is set to FALSE. |
| |
| # N.B. _prefix is the prefix applied to the names of all cached variables that |
| # are generated internally and marked advanced by this macro. |
| # _addlibdir is a list of additional search paths. _subdirs is a list of path |
| # suffixes to be used by find_library(). |
| |
| set(_libraries_work TRUE) |
| set(${LIBRARIES}) |
| set(_combined_name) |
| |
| 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 ${_list}) |
| if(_library MATCHES "^-Wl,--(start|end)-group$") |
| # Respect linker flags like --start/end-group (required by MKL) |
| set(${LIBRARIES} ${${LIBRARIES}} "${_library}") |
| else() |
| set(_combined_name ${_combined_name}_${_library}) |
| if(_libraries_work) |
| find_library(${_prefix}_${_library}_LIBRARY |
| NAMES ${_library} |
| PATHS ${_extaddlibdir} |
| PATH_SUFFIXES ${_subdirs} |
| ) |
| #message("DEBUG: find_library(${_library}) got ${${_prefix}_${_library}_LIBRARY}") |
| mark_as_advanced(${_prefix}_${_library}_LIBRARY) |
| set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY}) |
| set(_libraries_work ${${_prefix}_${_library}_LIBRARY}) |
| endif() |
| endif() |
| endforeach() |
| |
| if(_libraries_work) |
| # Test this combination of libraries. |
| set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threadlibs}) |
| #message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}") |
| if(CMAKE_Fortran_COMPILER_LOADED) |
| check_fortran_function_exists("${_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}${_blas}" STREQUAL "") |
| set(${LIBRARIES} "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES") |
| else() |
| set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threadlibs}) |
| endif() |
| else() |
| set(${LIBRARIES} FALSE) |
| endif() |
| #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}") |
| endmacro() |
| |
| set(LAPACK_LINKER_FLAGS) |
| set(LAPACK_LIBRARIES) |
| set(LAPACK95_LIBRARIES) |
| |
| if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED) |
| find_package(BLAS) |
| else() |
| find_package(BLAS REQUIRED) |
| endif() |
| |
| if(BLAS_FOUND) |
| set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS}) |
| if(NOT $ENV{BLA_VENDOR} STREQUAL "") |
| set(BLA_VENDOR $ENV{BLA_VENDOR}) |
| else() |
| if(NOT BLA_VENDOR) |
| set(BLA_VENDOR "All") |
| endif() |
| endif() |
| |
| # LAPACK in the Intel MKL 10+ library? |
| if(BLA_VENDOR MATCHES "Intel" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| if(CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED) |
| # System-specific settings |
| if(NOT WIN32) |
| set(LAPACK_mkl_LM "-lm") |
| set(LAPACK_mkl_LDL "-ldl") |
| endif() |
| |
| if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED) |
| find_package(Threads) |
| else() |
| find_package(Threads REQUIRED) |
| endif() |
| |
| if(BLA_VENDOR MATCHES "_64ilp") |
| set(LAPACK_mkl_ILP_MODE "ilp64") |
| else() |
| set(LAPACK_mkl_ILP_MODE "lp64") |
| endif() |
| |
| set(LAPACK_SEARCH_LIBS "") |
| |
| if(BLA_F95) |
| set(LAPACK_mkl_SEARCH_SYMBOL "cheev_f95") |
| set(_LIBRARIES LAPACK95_LIBRARIES) |
| set(_BLAS_LIBRARIES ${BLAS95_LIBRARIES}) |
| |
| # old |
| list(APPEND LAPACK_SEARCH_LIBS |
| "mkl_lapack95") |
| # new >= 10.3 |
| list(APPEND LAPACK_SEARCH_LIBS |
| "mkl_intel_c") |
| list(APPEND LAPACK_SEARCH_LIBS |
| "mkl_lapack95_${LAPACK_mkl_ILP_MODE}") |
| else() |
| set(LAPACK_mkl_SEARCH_SYMBOL "cheev") |
| set(_LIBRARIES LAPACK_LIBRARIES) |
| set(_BLAS_LIBRARIES ${BLAS_LIBRARIES}) |
| |
| # old and new >= 10.3 |
| list(APPEND LAPACK_SEARCH_LIBS |
| "mkl_lapack") |
| endif() |
| |
| # MKL uses a multitude of partially platform-specific subdirectories: |
| if(BLA_VENDOR STREQUAL "Intel10_32") |
| set(LAPACK_mkl_ARCH_NAME "ia32") |
| else() |
| set(LAPACK_mkl_ARCH_NAME "intel64") |
| endif() |
| if(WIN32) |
| set(LAPACK_mkl_OS_NAME "win") |
| elseif(APPLE) |
| set(LAPACK_mkl_OS_NAME "mac") |
| else() |
| set(LAPACK_mkl_OS_NAME "lin") |
| endif() |
| if(DEFINED ENV{MKLROOT}) |
| set(LAPACK_mkl_MKLROOT "$ENV{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(LAPACK_mkl_MKLROOT_LAST_DIR "${LAPACK_mkl_MKLROOT}" NAME) |
| if(LAPACK_mkl_MKLROOT_LAST_DIR STREQUAL "mkl") |
| get_filename_component(LAPACK_mkl_MKLROOT "${LAPACK_mkl_MKLROOT}" DIRECTORY) |
| endif() |
| endif() |
| set(LAPACK_mkl_LIB_PATH_SUFFIXES |
| "compiler/lib" "compiler/lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}" |
| "mkl/lib" "mkl/lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}" |
| "lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}") |
| |
| # First try empty lapack libs |
| if(NOT ${_LIBRARIES}) |
| check_lapack_libraries( |
| ${_LIBRARIES} |
| LAPACK |
| ${LAPACK_mkl_SEARCH_SYMBOL} |
| "" |
| "" |
| "${CMAKE_THREAD_LIBS_INIT};${LAPACK_mkl_LM};${LAPACK_mkl_LDL}" |
| "${LAPACK_mkl_MKLROOT}" |
| "${LAPACK_mkl_LIB_PATH_SUFFIXES}" |
| "${_BLAS_LIBRARIES}" |
| ) |
| endif() |
| |
| # Then try the search libs |
| foreach(IT ${LAPACK_SEARCH_LIBS}) |
| string(REPLACE " " ";" SEARCH_LIBS ${IT}) |
| if(NOT ${_LIBRARIES}) |
| check_lapack_libraries( |
| ${_LIBRARIES} |
| LAPACK |
| ${LAPACK_mkl_SEARCH_SYMBOL} |
| "" |
| "${SEARCH_LIBS}" |
| "${CMAKE_THREAD_LIBS_INIT};${LAPACK_mkl_LM};${LAPACK_mkl_LDL}" |
| "${LAPACK_mkl_MKLROOT}" |
| "${LAPACK_mkl_LIB_PATH_SUFFIXES}" |
| "${_BLAS_LIBRARIES}" |
| ) |
| endif() |
| endforeach() |
| |
| unset(LAPACK_mkl_ILP_MODE) |
| unset(LAPACK_mkl_SEARCH_SYMBOL) |
| unset(LAPACK_mkl_LM) |
| unset(LAPACK_mkl_LDL) |
| unset(LAPACK_mkl_MKLROOT) |
| unset(LAPACK_mkl_ARCH_NAME) |
| unset(LAPACK_mkl_OS_NAME) |
| unset(LAPACK_mkl_LIB_PATH_SUFFIXES) |
| endif() |
| endif() |
| endif() |
| |
| # gotoblas? (http://www.tacc.utexas.edu/tacc-projects/gotoblas2) |
| if(BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "goto2" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| |
| # OpenBLAS? (http://www.openblas.net) |
| if(BLA_VENDOR STREQUAL "OpenBLAS" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "openblas" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| |
| # FLAME's blis library? (https://github.com/flame/blis) |
| if(BLA_VENDOR STREQUAL "FLAME" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "flame" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| |
| # BLAS in acml library? |
| if(BLA_VENDOR MATCHES "ACML" OR BLA_VENDOR STREQUAL "All") |
| if(BLAS_LIBRARIES MATCHES ".+acml.+") |
| set(LAPACK_LIBRARIES ${BLAS_LIBRARIES}) |
| endif() |
| endif() |
| |
| # Apple LAPACK library? |
| if(BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "Accelerate" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| |
| # Apple NAS (vecLib) library? |
| if(BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "vecLib" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| |
| # Generic LAPACK library? |
| if(BLA_VENDOR STREQUAL "Generic" OR |
| BLA_VENDOR STREQUAL "ATLAS" OR |
| BLA_VENDOR STREQUAL "All") |
| if(NOT LAPACK_LIBRARIES) |
| check_lapack_libraries( |
| LAPACK_LIBRARIES |
| LAPACK |
| cheev |
| "" |
| "lapack" |
| "" |
| "" |
| "" |
| "${BLAS_LIBRARIES}" |
| ) |
| endif() |
| endif() |
| else() |
| message(STATUS "LAPACK requires BLAS") |
| endif() |
| |
| if(BLA_F95) |
| 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() |
| |
| cmake_pop_check_state() |
| set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) |
