cmake/FindLAPACK.cmake

   1 # - Find LAPACK library
   2 # This module finds an installed fortran library that implements the LAPACK
   3 # linear-algebra interface (see http://www.netlib.org/lapack/).
   4 #
   5 # The approach follows that taken for the autoconf macro file, acx_lapack.m4
   6 # (distributed at http://ac-archive.sourceforge.net/ac-archive/acx_lapack.html).
   7 #
   8 # This module sets the following variables:
   9 #  LAPACK_FOUND - set to true if a library implementing the LAPACK interface
  10 #    is found
  11 #  LAPACK_LINKER_FLAGS - uncached list of required linker flags (excluding -l
  12 #    and -L).
  13 #  LAPACK_LIBRARIES - uncached list of libraries (using full path name) to
  14 #    link against to use LAPACK
  15 #  LAPACK95_LIBRARIES - uncached list of libraries (using full path name) to
  16 #    link against to use LAPACK95
  17 #  LAPACK95_FOUND - set to true if a library implementing the LAPACK f95
  18 #    interface is found
  19 #  BLA_STATIC  if set on this determines what kind of linkage we do (static)
  20 #  BLA_VENDOR  if set checks only the specified vendor, if not set checks
  21 #     all the possibilities
  22 #  BLA_F95     if set on tries to find the f95 interfaces for BLAS/LAPACK
  23 ### List of vendors (BLA_VENDOR) valid in this module
  24 ##  Intel(mkl), ACML,Apple, NAS, Generic
  25
  26 #=============================================================================
  27 # Copyright 2007-2009 Kitware, Inc.
  28 #
  29 # Distributed under the OSI-approved BSD License (the "License");
  30 # see accompanying file Copyright.txt for details.
  31 #
  32 # This software is distributed WITHOUT ANY WARRANTY; without even the
  33 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  34 # See the License for more information.
  35 #=============================================================================
  36 # (To distribute this file outside of CMake, substitute the full
  37 #  License text for the above reference.)
  38
  39 set(_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
  40
  41 get_property(_LANGUAGES_ GLOBAL PROPERTY ENABLED_LANGUAGES)
  42 if (NOT _LANGUAGES_ MATCHES Fortran)
  43 include(CheckFunctionExists)
  44 else (NOT _LANGUAGES_ MATCHES Fortran)
  45 include(CheckFortranFunctionExists)
  46 endif (NOT _LANGUAGES_ MATCHES Fortran)
  47
  48 set(LAPACK_FOUND FALSE)
  49 set(LAPACK95_FOUND FALSE)
  50
  51 # TODO: move this stuff to separate module
  52
  53 macro(Check_Lapack_Libraries LIBRARIES _prefix _name _flags _list _blas _threads)
  54 # This macro checks for the existence of the combination of fortran libraries
  55 # given by _list.  If the combination is found, this macro checks (using the
  56 # Check_Fortran_Function_Exists macro) whether can link against that library
  57 # combination using the name of a routine given by _name using the linker
  58 # flags given by _flags.  If the combination of libraries is found and passes
  59 # the link test, LIBRARIES is set to the list of complete library paths that
  60 # have been found.  Otherwise, LIBRARIES is set to FALSE.
  61
  62 # N.B. _prefix is the prefix applied to the names of all cached variables that
  63 # are generated internally and marked advanced by this macro.
  64
  65 set(_libraries_work TRUE)
  66 set(${LIBRARIES})
  67 set(_combined_name)
  68 if (NOT _libdir)
  69   if (WIN32)
  70     set(_libdir ENV LIB)
  71   elseif (APPLE)
  72     set(_libdir /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV DYLD_LIBRARY_PATH)
  73   else ()
  74     set(_libdir /usr/local/lib /usr/lib /usr/local/lib64 /usr/lib64 ENV LD_LIBRARY_PATH)
  75   endif ()
  76 endif ()
  77 foreach(_library ${_list})
  78   set(_combined_name ${_combined_name}_${_library})
  79
  80   if(_libraries_work)
  81     if (BLA_STATIC)
  82       if (WIN32)
  83         set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
  84       endif ( WIN32 )
  85       if (APPLE)
  86         set(CMAKE_FIND_LIBRARY_SUFFIXES .lib ${CMAKE_FIND_LIBRARY_SUFFIXES})
  87       else (APPLE)
  88         set(CMAKE_FIND_LIBRARY_SUFFIXES .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
  89       endif (APPLE)
  90     else (BLA_STATIC)
  91                         if (CMAKE_SYSTEM_NAME STREQUAL "Linux")
  92         # for ubuntu's libblas3gf and liblapack3gf packages
  93         set(CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES} .so.3gf)
  94       endif ()
  95     endif (BLA_STATIC)
  96     find_library(${_prefix}_${_library}_LIBRARY
  97       NAMES ${_library}
  98       PATHS ${_libdir}
  99       )
 100     mark_as_advanced(${_prefix}_${_library}_LIBRARY)
 101     set(${LIBRARIES} ${${LIBRARIES}} ${${_prefix}_${_library}_LIBRARY})
 102     set(_libraries_work ${${_prefix}_${_library}_LIBRARY})
 103   endif(_libraries_work)
 104 endforeach(_library ${_list})
 105
 106 if(_libraries_work)
 107   # Test this combination of libraries.
 108   if(UNIX AND BLA_STATIC)
 109     set(CMAKE_REQUIRED_LIBRARIES ${_flags} "-Wl,--start-group" ${${LIBRARIES}} ${_blas} "-Wl,--end-group" ${_threads})
 110   else(UNIX AND BLA_STATIC)
 111     set(CMAKE_REQUIRED_LIBRARIES ${_flags} ${${LIBRARIES}} ${_blas} ${_threads})
 112   endif(UNIX AND BLA_STATIC)
 113 #  message("DEBUG: CMAKE_REQUIRED_LIBRARIES = ${CMAKE_REQUIRED_LIBRARIES}")
 114   if (NOT _LANGUAGES_ MATCHES Fortran)
 115     check_function_exists("${_name}_" ${_prefix}${_combined_name}_WORKS)
 116   else (NOT _LANGUAGES_ MATCHES Fortran)
 117     check_fortran_function_exists(${_name} ${_prefix}${_combined_name}_WORKS)
 118   endif (NOT _LANGUAGES_ MATCHES Fortran)
 119   set(CMAKE_REQUIRED_LIBRARIES)
 120   mark_as_advanced(${_prefix}${_combined_name}_WORKS)
 121   set(_libraries_work ${${_prefix}${_combined_name}_WORKS})
 122   #message("DEBUG: ${LIBRARIES} = ${${LIBRARIES}}")
 123 endif(_libraries_work)
 124
 125  if(_libraries_work)
 126    set(${LIBRARIES} ${${LIBRARIES}} ${_blas} ${_threads})
 127  else(_libraries_work)
 128     set(${LIBRARIES} FALSE)
 129  endif(_libraries_work)
 130
 131 endmacro(Check_Lapack_Libraries)
 132
 133
 134 set(LAPACK_LINKER_FLAGS)
 135 set(LAPACK_LIBRARIES)
 136 set(LAPACK95_LIBRARIES)
 137
 138
 139 if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 140   find_package(BLAS)
 141 else(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 142   find_package(BLAS REQUIRED)
 143 endif(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 144
 145
 146 if(BLAS_FOUND)
 147   set(LAPACK_LINKER_FLAGS ${BLAS_LINKER_FLAGS})
 148   if ($ENV{BLA_VENDOR} MATCHES ".+")
 149     set(BLA_VENDOR $ENV{BLA_VENDOR})
 150   else ($ENV{BLA_VENDOR} MATCHES ".+")
 151     if(NOT BLA_VENDOR)
 152       set(BLA_VENDOR "All")
 153     endif(NOT BLA_VENDOR)
 154   endif ($ENV{BLA_VENDOR} MATCHES ".+")
 155
 156 if (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
 157  if(NOT LAPACK_LIBRARIES)
 158   check_lapack_libraries(
 159   LAPACK_LIBRARIES
 160   LAPACK
 161   cheev
 162   ""
 163   "goto2"
 164   "${BLAS_LIBRARIES}"
 165   ""
 166   )
 167  endif(NOT LAPACK_LIBRARIES)
 168 endif (BLA_VENDOR STREQUAL "Goto" OR BLA_VENDOR STREQUAL "All")
 169
 170
 171 #acml lapack
 172  if (BLA_VENDOR MATCHES "ACML.*" OR BLA_VENDOR STREQUAL "All")
 173    if (BLAS_LIBRARIES MATCHES ".+acml.+")
 174      set (LAPACK_LIBRARIES ${BLAS_LIBRARIES})
 175    endif ()
 176  endif ()
 177
 178 # Apple LAPACK library?
 179 if (BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
 180  if(NOT LAPACK_LIBRARIES)
 181   check_lapack_libraries(
 182   LAPACK_LIBRARIES
 183   LAPACK
 184   cheev
 185   ""
 186   "Accelerate"
 187   "${BLAS_LIBRARIES}"
 188   ""
 189   )
 190  endif(NOT LAPACK_LIBRARIES)
 191 endif (BLA_VENDOR STREQUAL "Apple" OR BLA_VENDOR STREQUAL "All")
 192 if (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
 193   if ( NOT LAPACK_LIBRARIES )
 194     check_lapack_libraries(
 195     LAPACK_LIBRARIES
 196     LAPACK
 197     cheev
 198     ""
 199     "vecLib"
 200     "${BLAS_LIBRARIES}"
 201     ""
 202     )
 203   endif ( NOT LAPACK_LIBRARIES )
 204 endif (BLA_VENDOR STREQUAL "NAS" OR BLA_VENDOR STREQUAL "All")
 205 # Generic LAPACK library?
 206 if (BLA_VENDOR STREQUAL "Generic" OR
 207     BLA_VENDOR STREQUAL "ATLAS" OR
 208     BLA_VENDOR STREQUAL "All")
 209   if ( NOT LAPACK_LIBRARIES )
 210     check_lapack_libraries(
 211     LAPACK_LIBRARIES
 212     LAPACK
 213     cheev
 214     ""
 215     "lapack"
 216     "${BLAS_LIBRARIES}"
 217     ""
 218     )
 219   endif ( NOT LAPACK_LIBRARIES )
 220 endif ()
 221 #intel lapack
 222 if (BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
 223   if (NOT WIN32)
 224     set(LM "-lm")
 225   endif ()
 226   if (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
 227     if(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 228       find_PACKAGE(Threads)
 229     else(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 230       find_package(Threads REQUIRED)
 231     endif(LAPACK_FIND_QUIETLY OR NOT LAPACK_FIND_REQUIRED)
 232     if (BLA_F95)
 233       if(NOT LAPACK95_LIBRARIES)
 234         # old
 235         check_lapack_libraries(
 236           LAPACK95_LIBRARIES
 237           LAPACK
 238           cheev
 239           ""
 240           "mkl_lapack95"
 241           "${BLAS95_LIBRARIES}"
 242           "${CMAKE_THREAD_LIBS_INIT};${LM}"
 243           )
 244       endif(NOT LAPACK95_LIBRARIES)
 245       if(NOT LAPACK95_LIBRARIES)
 246         # new >= 10.3
 247         check_lapack_libraries(
 248           LAPACK95_LIBRARIES
 249           LAPACK
 250           CHEEV
 251           ""
 252           "mkl_intel_lp64"
 253           "${BLAS95_LIBRARIES}"
 254           "${CMAKE_THREAD_LIBS_INIT};${LM}"
 255           )
 256       endif(NOT LAPACK95_LIBRARIES)
 257     else(BLA_F95)
 258       if(NOT LAPACK_LIBRARIES)
 259         # old
 260         check_lapack_libraries(
 261           LAPACK_LIBRARIES
 262           LAPACK
 263           cheev
 264           ""
 265           "mkl_lapack"
 266           "${BLAS_LIBRARIES}"
 267           "${CMAKE_THREAD_LIBS_INIT};${LM}"
 268           )
 269       endif(NOT LAPACK_LIBRARIES)
 270       if(NOT LAPACK_LIBRARIES)
 271         # new >= 10.3
 272         check_lapack_libraries(
 273           LAPACK_LIBRARIES
 274           LAPACK
 275           cheev
 276           ""
 277           "mkl_gf_lp64"
 278           "${BLAS_LIBRARIES}"
 279           "${CMAKE_THREAD_LIBS_INIT};${LM}"
 280           )
 281       endif(NOT LAPACK_LIBRARIES)
 282     endif(BLA_F95)
 283   endif (_LANGUAGES_ MATCHES C OR _LANGUAGES_ MATCHES CXX)
 284 endif(BLA_VENDOR MATCHES "Intel*" OR BLA_VENDOR STREQUAL "All")
 285 else(BLAS_FOUND)
 286   message(STATUS "LAPACK requires BLAS")
 287 endif(BLAS_FOUND)
 288
 289 if(BLA_F95)
 290  if(LAPACK95_LIBRARIES)
 291   set(LAPACK95_FOUND TRUE)
 292  else(LAPACK95_LIBRARIES)
 293   set(LAPACK95_FOUND FALSE)
 294  endif(LAPACK95_LIBRARIES)
 295  if(NOT LAPACK_FIND_QUIETLY)
 296   if(LAPACK95_FOUND)
 297     message(STATUS "A library with LAPACK95 API found.")
 298   else(LAPACK95_FOUND)
 299     if(LAPACK_FIND_REQUIRED)
 300       message(FATAL_ERROR
 301       "A required library with LAPACK95 API not found. Please specify library location."
 302       )
 303     else(LAPACK_FIND_REQUIRED)
 304       message(STATUS
 305       "A library with LAPACK95 API not found. Please specify library location."
 306       )
 307     endif(LAPACK_FIND_REQUIRED)
 308   endif(LAPACK95_FOUND)
 309  endif(NOT LAPACK_FIND_QUIETLY)
 310  set(LAPACK_FOUND "${LAPACK95_FOUND}")
 311  set(LAPACK_LIBRARIES "${LAPACK95_LIBRARIES}")
 312 else(BLA_F95)
 313  if(LAPACK_LIBRARIES)
 314   set(LAPACK_FOUND TRUE)
 315  else(LAPACK_LIBRARIES)
 316   set(LAPACK_FOUND FALSE)
 317  endif(LAPACK_LIBRARIES)
 318
 319  if(NOT LAPACK_FIND_QUIETLY)
 320   if(LAPACK_FOUND)
 321     message(STATUS "A library with LAPACK API found.")
 322   else(LAPACK_FOUND)
 323     if(LAPACK_FIND_REQUIRED)
 324       message(FATAL_ERROR
 325       "A required library with LAPACK API not found. Please specify library location."
 326       )
 327     else(LAPACK_FIND_REQUIRED)
 328       message(STATUS
 329       "A library with LAPACK API not found. Please specify library location."
 330       )
 331     endif(LAPACK_FIND_REQUIRED)
 332   endif(LAPACK_FOUND)
 333  endif(NOT LAPACK_FIND_QUIETLY)
 334 endif(BLA_F95)
 335
 336 set(CMAKE_FIND_LIBRARY_SUFFIXES ${_lapack_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})