cmake/FindPTScotch.cmake

   1 # Copyright (C) 2017-2021  CEA/DEN, EDF R&D, OPEN CASCADE
   2 #
   3 # This library is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU Lesser General Public
   5 # License as published by the Free Software Foundation; either
   6 # version 2.1 of the License, or (at your option) any later version.
   7 #
   8 # This library is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 # Lesser General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU Lesser General Public
  14 # License along with this library; if not, write to the Free Software
  15 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  16 #
  17 # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  18 #
  19
  20 # ------
  21
  22 MESSAGE(STATUS "Check for PTscotch ...")
  23
  24 SET(PTSCOTCH_ROOT_DIR $ENV{PTSCOTCH_ROOT_DIR} CACHE PATH "Path to the PTSCOTCH.")
  25 IF(PTSCOTCH_ROOT_DIR)
  26   LIST(APPEND CMAKE_PREFIX_PATH "${PTSCOTCH_ROOT_DIR}")
  27 ENDIF(PTSCOTCH_ROOT_DIR)
  28
  29 FIND_LIBRARY(PTSCOTCH_LIBRARIES ptscotch PATH_SUFFIXES openmpi/lib)
  30 FIND_LIBRARY(PTSCOTCH_ERR_LIBRARIES ptscotcherr PATH_SUFFIXES openmpi/lib)
  31 SET(PTSCOTCH_LIBRARIES ${PTSCOTCH_LIBRARIES} ${PTSCOTCH_ERR_LIBRARIES})
  32 SET(SCOTCH_HEADER scotch.h)
  33 IF(PTSCOTCH_USE_LONG)
  34   SET(PTSCOTCH_SUFFIXES scotch-long)
  35 ELSEIF(PTSCOTCH_USE_INT64)
  36   SET(PTSCOTCH_SUFFIXES scotch-int64)
  37 ELSEIF(PTSCOTCH_USE_INT32)
  38   SET(PTSCOTCH_SUFFIXES scotch-int32)
  39 ENDIF()
  40 FIND_PATH(PTSCOTCH_INCLUDE_DIRS ${SCOTCH_HEADER} PATH_SUFFIXES ${PTSCOTCH_SUFFIXES} scotch)
  41
  42 # Detect version of scotch/ptscotch
  43
  44 FILE(TO_NATIVE_PATH "${PTSCOTCH_INCLUDE_DIRS}/${SCOTCH_HEADER}" SCOTCH_HEADER_FILE)
  45 FILE(READ ${SCOTCH_HEADER_FILE} SCOTCH_HEADER_FILE_CONTENT)
  46
  47 SET(ITER VERSION_MAJOR RELEASE_MINOR PATCHLEVEL_PATCH)
  48 FOREACH(mmp ${ITER})
  49   STRING(REPLACE "_" ";" mmp_list ${mmp})
  50   LIST(GET mmp_list 0 mmp_search)
  51   LIST(GET mmp_list 1 mmp_client)
  52   STRING(REGEX MATCH "#define[\t ]+SCOTCH_${mmp_search}[\t ]+([0-9]+)" SCOTCH_MAJOR_VERSION_LINE "${SCOTCH_HEADER_FILE_CONTENT}")
  53   STRING(REGEX MATCH "([0-9]+)" SCOTCH_VERSION_${mmp_client} "${SCOTCH_MAJOR_VERSION_LINE}")
  54 ENDFOREACH()
  55
  56 # End of detection of scotch/ptscotch
  57
  58 IF("${SCOTCH_VERSION_MAJOR}.${SCOTCH_VERSION_MINOR}.${SCOTCH_VERSION_PATCH}" VERSION_GREATER_EQUAL "6.0.0")
  59   # for ptscotch client of version >= 6.0.0 scotch.a library needs to be added
  60   FIND_LIBRARY(SCOTCH_LIBRARY scotch)
  61   LIST(APPEND PTSCOTCH_LIBRARIES ${SCOTCH_LIBRARY})
  62 ENDIF()
  63
  64 INCLUDE(FindPackageHandleStandardArgs)
  65 FIND_PACKAGE_HANDLE_STANDARD_ARGS(PTScotch REQUIRED_VARS PTSCOTCH_INCLUDE_DIRS PTSCOTCH_LIBRARIES)