diff options
Diffstat (limited to 'Modules/FindLAPACK.cmake')
| -rw-r--r-- | Modules/FindLAPACK.cmake | 267 |
1 files changed, 142 insertions, 125 deletions
diff --git a/Modules/FindLAPACK.cmake b/Modules/FindLAPACK.cmake index 45e4be7..b8a3363 100644 --- a/Modules/FindLAPACK.cmake +++ b/Modules/FindLAPACK.cmake @@ -8,11 +8,11 @@ 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/). +`LAPACK linear-algebra interface`_. -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). +At least one of the ``C``, ``CXX``, or ``Fortran`` languages must be enabled. + +.. _`LAPACK linear-algebra interface`: http://www.netlib.org/lapack/ Input Variables ^^^^^^^^^^^^^^^ @@ -23,51 +23,8 @@ The following variables may be set to influence this module's behavior: 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: - - * ``FlexiBLAS`` - * ``OpenBLAS`` - * ``FLAME`` - * ``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`` (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`` - * ``Arm`` - * ``Arm_mp`` - * ``Arm_ilp64`` - * ``Arm_ilp64_mp`` - * ``EML`` - * ``EML_mt`` - * ``Generic`` - - .. versionadded:: 3.6 - ``OpenBLAS`` support. - - .. versionadded:: 3.11 - ``FLAME`` support. - - .. versionadded:: 3.13 - Added ILP64 MKL variants (``Intel10_64ilp``, ``Intel10_64ilp_seq``). - - .. versionadded:: 3.17 - Added single dynamic library MKL variant (``Intel10_64_dyn``). - - .. versionadded:: 3.18 - Arm Performance Libraries support (``Arm``, ``Arm_mp``, ``Arm_ilp64``, - ``Arm_ilp64_mp``). - - .. versionadded:: 3.19 - ``FlexiBLAS`` support. - - .. versionadded:: 3.20 - Elbrus Math Library support (``EML``, ``EML_mt``). + 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/LAPACK95 interfaces @@ -81,11 +38,11 @@ The following variables may be set to influence this module's behavior: Imported targets ^^^^^^^^^^^^^^^^ -.. versionadded:: 3.18 - -This module defines the following :prop_tgt:`IMPORTED` target: +This module defines the following :prop_tgt:`IMPORTED` targets: ``LAPACK::LAPACK`` + .. versionadded:: 3.18 + The libraries to use for LAPACK, if found. Result Variables @@ -106,52 +63,82 @@ This module defines the following variables: ``LAPACK95_FOUND`` library implementing the LAPACK95 interface is found -.. note:: +Intel MKL +^^^^^^^^^ + +To use the Intel MKL implementation of LAPACK, 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: - 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). +.. code-block:: cmake - For example, to use Intel MKL libraries and/or Intel compiler: + set(BLA_VENDOR Intel10_64lp) + find_package(LAPACK) - .. code-block:: cmake +In order to build a project using Intel MKL, and end user must first +establish an Intel MKL environment. See the :module:`FindBLAS` module +section on :ref:`Intel MKL` for details. - set(BLA_VENDOR Intel10_64lp) - find_package(LAPACK) #]=======================================================================] +# The approach follows that of the ``autoconf`` macro file, ``acx_lapack.m4`` +# (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html). + if(CMAKE_Fortran_COMPILER_LOADED) include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranFunctionExists.cmake) else() include(${CMAKE_CURRENT_LIST_DIR}/CheckFunctionExists.cmake) endif() -include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake) include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) function(_add_lapack_target) if(LAPACK_FOUND AND NOT TARGET LAPACK::LAPACK) add_library(LAPACK::LAPACK INTERFACE IMPORTED) + + # Filter out redundant BLAS info and replace with the BLAS target 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}") + set(_lapack_flags "${LAPACK_LINKER_FLAGS}") + if(TARGET BLAS::BLAS) + if(_lapack_libs AND BLAS_LIBRARIES) + foreach(_blas_lib IN LISTS BLAS_LIBRARIES) + list(REMOVE_ITEM _lapack_libs "${_blas_lib}") + endforeach() + endif() + if(_lapack_flags AND BLAS_LINKER_FLAGS) + foreach(_blas_flag IN LISTS BLAS_LINKER_FLAGS) + list(REMOVE_ITEM _lapack_flags "${_blas_flag}") + endforeach() + endif() list(APPEND _lapack_libs BLAS::BLAS) endif() - if(_lapack_libs) set_target_properties(LAPACK::LAPACK PROPERTIES INTERFACE_LINK_LIBRARIES "${_lapack_libs}" ) endif() - unset(_lapack_libs) + if(_lapack_flags) + set_target_properties(LAPACK::LAPACK PROPERTIES + INTERFACE_LINK_OPTIONS "${_lapack_flags}" + ) + endif() endif() endfunction() -macro(_lapack_find_library_setup) - cmake_push_check_state() - set(CMAKE_REQUIRED_QUIET ${LAPACK_FIND_QUIETLY}) +# TODO: move this stuff to a separate module + +function(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _deps _addlibdir _subdirs _blas) + # 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) - 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}) @@ -164,33 +151,6 @@ macro(_lapack_find_library_setup) set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf) endif() endif() -endmacro() - -macro(_lapack_find_library_teardown) - set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES}) - unset(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES) - cmake_pop_check_state() -endmacro() - -# TODO: move this stuff to a separate module - -macro(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _threadlibs _addlibdir _subdirs _blas) - # This macro checks for the existence of the combination of fortran libraries - # given by _list. If the combination is found, this macro checks (using the - # Check_Fortran_Function_Exists macro) whether can link against that library - # combination using the name of a routine given by _name using the linker - # flags given by _flags. If the combination of libraries is found and passes - # the link test, LIBRARIES is set to the list of complete library paths that - # have been found. Otherwise, LIBRARIES is set to FALSE. - - # N.B. _prefix is the prefix applied to the names of all cached variables that - # are generated internally and marked advanced by this macro. - # _addlibdir is a list of additional search paths. _subdirs is a list of path - # suffixes to be used by find_library(). - - set(_libraries_work TRUE) - set(${LIBRARIES}) - set(_combined_name) set(_extaddlibdir "${_addlibdir}") if(WIN32) @@ -203,31 +163,37 @@ macro(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _threadlibs _a list(APPEND _extaddlibdir "${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}} "${_library}") + if(_library MATCHES "^-") + # Respect linker flags as-is (required by MKL) + list(APPEND _libraries "${_library}") else() - set(_combined_name ${_combined_name}_${_library}) + string(REGEX REPLACE "[^A-Za-z0-9]" "_" _lib_var "${_library}") + set(_combined_name ${_combined_name}_${_lib_var}) + if(NOT "${_deps}" STREQUAL "") + set(_combined_name ${_combined_name}_deps) + endif() if(_libraries_work) - find_library(${_prefix}_${_library}_LIBRARY + find_library(${_prefix}_${_lib_var}_LIBRARY NAMES ${_library} NAMES_PER_DIR 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}_${_library}_LIBRARY}) + mark_as_advanced(${_prefix}_${_lib_var}_LIBRARY) + list(APPEND _libraries ${${_prefix}_${_lib_var}_LIBRARY}) + set(_libraries_work ${${_prefix}_${_lib_var}_LIBRARY}) endif() endif() endforeach() - unset(_library) + foreach(_flag ${_flags}) + string(REGEX REPLACE "[^A-Za-z0-9]" "_" _flag_var "${_flag}") + set(_combined_name ${_combined_name}_${_flag_var}) + 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}") + set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${_libraries} ${_blas} ${_deps}) + set(CMAKE_REQUIRED_QUIET ${LAPACK_FIND_QUIETLY}) if(CMAKE_Fortran_COMPILER_LOADED) check_fortran_function_exists("${_name}" ${_prefix}${_combined_name}_WORKS) else() @@ -239,19 +205,15 @@ macro(CHECK_LAPACK_LIBRARIES LIBRARIES _prefix _name _flags _list _threadlibs _a if(_libraries_work) if("${_list}${_blas}" STREQUAL "") - set(${LIBRARIES} "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES") + set(_libraries "${LIBRARIES}-PLACEHOLDER-FOR-EMPTY-LIBRARIES") else() - set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threadlibs}) + list(APPEND _libraries ${_blas} ${_deps}) endif() else() - set(${LIBRARIES} FALSE) + set(_libraries FALSE) endif() - - unset(_extaddlibdir) - unset(_libraries_work) - unset(_combined_name) - #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}") -endmacro() + set(${LIBRARIES} "${_libraries}" PARENT_SCOPE) +endfunction() macro(_lapack_find_dependency dep) set(_lapack_quiet_arg) @@ -274,11 +236,10 @@ macro(_lapack_find_dependency dep) set(_lapack_quiet_arg) endmacro() -_lapack_find_library_setup() - set(LAPACK_LINKER_FLAGS) set(LAPACK_LIBRARIES) set(LAPACK95_LIBRARIES) +set(_lapack_fphsa_req_var LAPACK_LIBRARIES) # Check the language being used if(NOT (CMAKE_C_COMPILER_LOADED OR CMAKE_CXX_COMPILER_LOADED OR CMAKE_Fortran_COMPILER_LOADED)) @@ -385,7 +346,9 @@ if(NOT LAPACK_NOT_FOUND_MESSAGE) "compiler/lib/${LAPACK_mkl_ARCH_NAME}" "mkl/lib" "mkl/lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}" "mkl/lib/${LAPACK_mkl_ARCH_NAME}" - "lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}") + "lib" "lib/${LAPACK_mkl_ARCH_NAME}_${LAPACK_mkl_OS_NAME}" + "lib/${LAPACK_mkl_ARCH_NAME}" + ) # First try empty lapack libs if(NOT ${_LIBRARIES}) @@ -585,22 +548,78 @@ if(NOT LAPACK_NOT_FOUND_MESSAGE) ) endif() + # Fujitsu SSL2 Library? + if(NOT LAPACK_LIBRARIES + AND BLA_VENDOR MATCHES "Fujitsu_SSL2" OR BLA_VENDOR STREQUAL "All") + if(BLA_VENDOR STREQUAL "Fujitsu_SSL2BLAMP") + set(_ssl2_suffix BLAMP) + else() + set(_ssl2_suffix) + endif() + set(_ssl2_blas) + if(BLAS_LIBRARIES STREQUAL "") + set(_ssl2_blas "${BLAS_LINKER_FLAGS}") + else() + set(_ssl2_blas "${BLAS_LIBRARIES} ${BLAS_LINKER_FLAGS}") + endif() + check_lapack_libraries( + LAPACK_LIBRARIES + LAPACK + cheev + "-SSL2${_ssl2_suffix}" + "" + "" + "" + "" + "${_ssl2_blas}" + ) + if(LAPACK_LIBRARIES) + set(LAPACK_LINKER_FLAGS "-SSL2${_ssl2_suffix}") + set(_lapack_fphsa_req_var LAPACK_LINKER_FLAGS) + endif() + unset(_ssl2_suffix) + endif() + + # NVHPC Library? + if(NOT LAPACK_LIBRARIES + AND BLA_VENDOR MATCHES "NVHPC" OR BLA_VENDOR STREQUAL "All") + check_lapack_libraries( + LAPACK_LIBRARIES + LAPACK + cheev + "" + "lapack" + "-fortranlibs" + "" + "" + "${BLAS_LIBRARIES}" + ) + endif() + # Generic LAPACK library? if(NOT LAPACK_LIBRARIES AND (BLA_VENDOR STREQUAL "Generic" OR BLA_VENDOR STREQUAL "ATLAS" OR BLA_VENDOR STREQUAL "All")) + if(BLA_STATIC) + # We do not know for sure how the LAPACK reference implementation + # is built on this host. Guess typical dependencies. + set(_lapack_generic_deps "-lgfortran;-lm") + else() + set(_lapack_generic_deps "") + endif() check_lapack_libraries( LAPACK_LIBRARIES LAPACK cheev "" "lapack" - "" + "${_lapack_generic_deps}" "" "" "${BLAS_LIBRARIES}" ) + unset(_lapack_generic_deps) endif() endif() @@ -612,7 +631,7 @@ if(LAPACK_NOT_FOUND_MESSAGE) set(LAPACK_NOT_FOUND_MESSAGE REASON_FAILURE_MESSAGE ${LAPACK_NOT_FOUND_MESSAGE}) endif() -find_package_handle_standard_args(LAPACK REQUIRED_VARS LAPACK_LIBRARIES +find_package_handle_standard_args(LAPACK REQUIRED_VARS ${_lapack_fphsa_req_var} ${LAPACK_NOT_FOUND_MESSAGE}) unset(LAPACK_NOT_FOUND_MESSAGE) @@ -627,5 +646,3 @@ if(LAPACK_LIBRARIES STREQUAL "LAPACK_LIBRARIES-PLACEHOLDER-FOR-EMPTY-LIBRARIES") endif() _add_lapack_target() - -_lapack_find_library_teardown() |