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CMake/Modules/FindLAPACK.cmake

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#.rst:
# FindLAPACK
# ----------
#
# Find 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).
#
# This module sets the following variables:
#
# ::
#
# LAPACK_FOUND - set to true if a 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 - set to true if a library implementing the LAPACK f95
# interface is found
# BLA_STATIC if set on this determines what kind of linkage we do (static)
# BLA_VENDOR if set checks only the specified vendor, if not set checks
# all the possibilities
# BLA_F95 if set on tries to find the f95 interfaces for BLAS/LAPACK
#
# ## List of vendors (BLA_VENDOR) valid in this module # Intel(mkl),
# ACML,Apple, NAS, Generic
#=============================================================================
# Copyright 2007-2009 Kitware, Inc.
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
if (NOT _LANGUAGES_ MATCHES Fortran)
include(${CMAKE_CURRENT_LIST_DIR}/CheckFunctionExists.cmake)
else ()
include(${CMAKE_CURRENT_LIST_DIR}/CheckFortranFunctionExists.cmake)
endif ()
set(LAPACK_FOUND FALSE)
set(LAPACK95_FOUND FALSE)
# TODO: move this stuff to separate module
macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas _threads)
# This macro checks for the existence of the combination of fortran libraries
# given by _list. If the combination is found, this macro checks (using the
# Check_Fortran_Function_Exists macro) whether can link against that library
# combination using the name of a routine given by _name using the linker
# flags given by _flags. If the combination of libraries is found and passes
# the link test, LIBRARIES is set to the list of complete library paths that
# have been found. Otherwise, LIBRARIES is set to FALSE.
# N.B. _prefix is the prefix applied to the names of all cached variables that
# are generated internally and marked advanced by this macro.
set(_libraries_work TRUE)
set(${LIBRARIES})
set(_combined_name)
if (NOT _libdir)
if (WIN32)
set(_libdir ENV LIB)
elseif (APPLE)
set(_libdir ENV DYLD_LIBRARY_PATH)
else ()
set(_libdir ENV LD_LIBRARY_PATH)
endif ()
endif ()
foreach(_library ${_list})
set(_combined_name ${_combined_name}_${_library})
if(_libraries_work)
if (BLA_STATIC)
if (WIN32)
set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
endif ()
if (APPLE)
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 ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
endif ()
endif ()
find_library(${_prefix}_${_library}_LIBRARY
NAMES ${_library}
PATHS ${_libdir}
)
mark_as_advanced(${_prefix}_${_library}_LIBRARY)
set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
endif()
endforeach()
if(_libraries_work)
# Test this combination of libraries.
if(UNIX AND BLA_STATIC)
set(CMAKE_REQUIRED_LIBRARIES ${_flags} "-Wl,--start-group" ${${LIBRARIES}} ${_blas} "-Wl,--end-group" ${_threads})
else()
set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threads})
endif()
# message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
if (NOT _LANGUAGES_ MATCHES Fortran)
check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
else ()
check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
endif ()
set(CMAKE_REQUIRED_LIBRARIES)
mark_as_advanced(${_prefix}${_combined_name}_WORKS)
set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
#message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
endif()
if(_libraries_work)
set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})
else()
set(${LIBRARIES} FALSE)
endif()
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 ${BLAS_LINKER_FLAGS})
if ($ENV{BLA_VENDOR} MATCHES ".+")
set(BLA_VENDOR $ENV{BLA_VENDOR})
else ()
if(NOT BLA_VENDOR)
set(BLA_VENDOR "All")
endif()
endif ()
if (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
if(NOT LAPACK_LIBRARIES)
check_lapack_libraries(
LAPACK_LIBRARIES
LAPACK
cheev
""
"goto2"
"${BLAS_LIBRARIES}"
""
)
endif()
endif ()
#acml lapack
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 ()
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 ()
#intel lapack
if (BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
if (NOT WIN32)
set(LM "-lm")
endif ()
if (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
find_PACKAGE(Threads)
else()
find_package(Threads REQUIRED)
endif()
set(LAPACK_SEARCH_LIBS "")
if (BLA_F95)
set(LAPACK_mkl_SEARCH_SYMBOL "CHEEV")
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_intel_lp64")
else()
set(LAPACK_mkl_SEARCH_SYMBOL "cheev")
set(_LIBRARIES LAPACK_LIBRARIES)
set(_BLAS_LIBRARIES ${BLAS_LIBRARIES})
# old
list(APPEND LAPACK_SEARCH_LIBS
"mkl_lapack")
# new >= 10.3
list(APPEND LAPACK_SEARCH_LIBS
"mkl_gf_lp64")
endif()
# First try empty lapack libs
if (NOT ${_LIBRARIES})
check_lapack_libraries(
${_LIBRARIES}
BLAS
${LAPACK_mkl_SEARCH_SYMBOL}
""
""
"${_BLAS_LIBRARIES}"
"${CMAKE_THREAD_LIBS_INIT};${LM}"
)
endif ()
# Then try the search libs
foreach (IT ${LAPACK_SEARCH_LIBS})
if (NOT ${_LIBRARIES})
check_lapack_libraries(
${_LIBRARIES}
BLAS
${LAPACK_mkl_SEARCH_SYMBOL}
""
"${IT}"
"${_BLAS_LIBRARIES}"
"${CMAKE_THREAD_LIBS_INIT};${LM}"
)
endif ()
endforeach ()
endif ()
endif()
else()
message(STATUS "LAPACK requires BLAS")
endif()
if(BLA_F95)
if(LAPACK95_LIBRARIES)
set(LAPACK95_FOUND TRUE)
else()
set(LAPACK95_FOUND FALSE)
endif()
if(NOT LAPACK_FIND_QUIETLY)
if(LAPACK95_FOUND)
message(STATUS "A library with LAPACK95 API found.")
else()
if(LAPACK_FIND_REQUIRED)
message(FATAL_ERROR
"A required library with LAPACK95 API not found. Please specify library location."
)
else()
message(STATUS
"A library with LAPACK95 API not found. Please specify library location."
)
endif()
endif()
endif()
set(LAPACK_FOUND "${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()
set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
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