diff options
Diffstat (limited to 'Modules/FindMPI.cmake')
| -rw-r--r-- | Modules/FindMPI.cmake | 144 |
1 files changed, 89 insertions, 55 deletions
diff --git a/Modules/FindMPI.cmake b/Modules/FindMPI.cmake index d5014dd5b0..e945ec5de6 100644 --- a/Modules/FindMPI.cmake +++ b/Modules/FindMPI.cmake @@ -1,5 +1,5 @@ # - Message Passing Interface (MPI) module. -# +# # The Message Passing Interface (MPI) is a library used to write # high-performance parallel applications that use message passing, and # is typically deployed on a cluster. MPI is a standard interface @@ -35,7 +35,7 @@ # # If no compiler driver is found or the compiler driver is not # recognized, this module will then search for common include paths -# and library names to try to detect MPI. +# and library names to try to detect MPI. # # If CMake initially finds a different MPI than was intended, and you # want to use the MPI compiler auto-detection for a different MPI @@ -49,7 +49,7 @@ # ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} PROCS ${MPIEXEC_PREFLAGS} EXECUTABLE # ${MPIEXEC_POSTFLAGS} ARGS # where PROCS is the number of processors on which to execute the program, -# EXECUTABLE is the MPI program, and ARGS are the arguments to pass to the +# EXECUTABLE is the MPI program, and ARGS are the arguments to pass to the # MPI program. #============================================================================= @@ -65,27 +65,64 @@ # (To distributed this file outside of CMake, substitute the full # License text for the above reference.) -# Try to find the MPI driver program -find_program(MPI_COMPILER - NAMES mpic++ mpicxx mpiCC mpicc - DOC "MPI compiler. Used only to detect MPI compilation flags.") -mark_as_advanced(MPI_COMPILER) +# This module is maintained by David Partyka <dave.partyka@kitware.com>. + +# A set of directories to search through in addition to the standard system paths +# that find_program will search through. +# Microsoft HPC SDK is automatically added to the system path +# Argonne National Labs MPICH2 sets a registry key that we can use. -file(TO_CMAKE_PATH "$ENV{ProgramFiles}" ProgramFiles) +set(MPI_PACKAGE_DIR + mpi + mpich + openmpi + lib/mpi + lib/mpich + lib/openmpi + "MPICH/SDK" + "Microsoft Compute Cluster Pack" + ) + +set(MPI_PREFIX_PATH) +if(WIN32) + list(APPEND MPI_PREFIX_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MPICH\\SMPD;binary]/..") +endif() + +foreach(SystemPrefixDir ${CMAKE_SYSTEM_PREFIX_PATH}) + foreach(MpiPackageDir ${MPI_PREFIX_PATH}) + if(EXISTS ${SystemPrefixDir}/${MpiPackageDir}) + list(APPEND MPI_PREFIX_PATH "${SystemPrefixDir}/${MpiPackageDir}") + endif() + endforeach(MpiPackageDir) +endforeach(SystemPrefixDir) + +# Most mpi distros have some form of mpiexec which gives us something we can reliably look for. find_program(MPIEXEC NAMES mpiexec mpirun lamexec - PATHS /usr/bin /usr/local/bin /usr/local/mpi/bin - "$ENV{SystemDrive}/Program Files/MPICH/SDK/Bin" - "${ProgramFiles}/MPICH2/Bin" - "$ENV{SystemDrive}/Program Files/Microsoft Compute Cluster Pack/Bin" - "$ENV{SystemDrive}/Program Files/Microsoft HPC Pack 2008 SDK/Bin" - DOC "Executable for running MPI programs.") + PATHS ${MPI_PREFIX_PATH} + PATH_SUFFIXES bin + DOC "Executable for running MPI programs." + ) + +# call get_filename_component twice to remove mpiexec and the directory it exists in (typically bin). +# This gives us a fairly reliable base directory to search for /bin /lib and /include from. +get_filename_component(MPI_BASE_DIR "${MPIEXEC}" PATH) +get_filename_component(MPI_BASE_DIR "${MPI_BASE_DIR}" PATH) + +# If there is an mpi compiler find it and interogate (farther below) it for the include +# and lib dirs otherwise we will continue to search from ${MPI_BASE_DIR}. +find_program(MPI_COMPILER + NAMES mpic++ mpicxx mpiCC mpicc + HINTS "${MPI_BASE_DIR}" + PATH_SUFFIXES bin + DOC "MPI compiler. Used only to detect MPI compilation flags.") +mark_as_advanced(MPI_COMPILER) set(MPIEXEC_NUMPROC_FLAG "-np" CACHE STRING "Flag used by MPI to specify the number of processes for MPIEXEC; the next option will be the number of processes.") set(MPIEXEC_PREFLAGS "" CACHE STRING "These flags will be directly before the executable that is being run by MPIEXEC.") set(MPIEXEC_POSTFLAGS "" CACHE STRING "These flags will come after all flags given to MPIEXEC.") set(MPIEXEC_MAX_NUMPROCS "2" CACHE STRING "Maximum number of processors available to run MPI applications.") -mark_as_advanced(MPIEXEC MPIEXEC_NUMPROC_FLAG MPIEXEC_PREFLAGS +mark_as_advanced(MPIEXEC MPIEXEC_NUMPROC_FLAG MPIEXEC_PREFLAGS MPIEXEC_POSTFLAGS MPIEXEC_MAX_NUMPROCS) if (MPI_INCLUDE_PATH AND MPI_LIBRARY) @@ -95,15 +132,16 @@ elseif (MPI_COMPILER) # Check whether the -showme:compile option works. This indicates # that we have either Open MPI or a newer version of LAM-MPI, and # implies that -showme:link will also work. - exec_program(${MPI_COMPILER} - ARGS -showme:compile + # Note that Windows distros do not have an mpi compiler to interogate. + exec_program(${MPI_COMPILER} + ARGS -showme:compile OUTPUT_VARIABLE MPI_COMPILE_CMDLINE RETURN_VALUE MPI_COMPILER_RETURN) if (MPI_COMPILER_RETURN EQUAL 0) # If we appear to have -showme:compile, then we should also have # -showme:link. Try it. - exec_program(${MPI_COMPILER} + exec_program(${MPI_COMPILER} ARGS -showme:link OUTPUT_VARIABLE MPI_LINK_CMDLINE RETURN_VALUE MPI_COMPILER_RETURN) @@ -117,21 +155,21 @@ elseif (MPI_COMPILER) # Do nothing: we have our command lines now else (MPI_COMPILER_RETURN EQUAL 0) # Older versions of LAM-MPI have "-showme". Try it. - exec_program(${MPI_COMPILER} + exec_program(${MPI_COMPILER} ARGS -showme OUTPUT_VARIABLE MPI_COMPILE_CMDLINE RETURN_VALUE MPI_COMPILER_RETURN) - endif (MPI_COMPILER_RETURN EQUAL 0) + endif (MPI_COMPILER_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0) # Do nothing: we have our command lines now else (MPI_COMPILER_RETURN EQUAL 0) # MPICH uses "-show". Try it. - exec_program(${MPI_COMPILER} + exec_program(${MPI_COMPILER} ARGS -show OUTPUT_VARIABLE MPI_COMPILE_CMDLINE RETURN_VALUE MPI_COMPILER_RETURN) - endif (MPI_COMPILER_RETURN EQUAL 0) + endif (MPI_COMPILER_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0) # We have our command lines, but we might need to copy @@ -167,12 +205,12 @@ elseif (MPI_COMPILE_CMDLINE) string(REGEX REPLACE "//" "/" IPATH ${IPATH}) list(APPEND MPI_INCLUDE_PATH_WORK ${IPATH}) endforeach(IPATH) - + if (NOT MPI_INCLUDE_PATH_WORK) if (MPI_COMPILER_MAY_HAVE_INCLIBDIRS) # The compile command line didn't have any include paths on it, # but we may have -showme:incdirs. Use it. - exec_program(${MPI_COMPILER} + exec_program(${MPI_COMPILER} ARGS -showme:incdirs OUTPUT_VARIABLE MPI_INCLUDE_PATH_WORK RETURN_VALUE MPI_COMPILER_RETURN) @@ -183,7 +221,10 @@ elseif (MPI_COMPILE_CMDLINE) if (NOT MPI_INCLUDE_PATH_WORK) # If all else fails, just search for mpi.h in the normal include # paths. - find_path(MPI_INCLUDE_PATH mpi.h) + find_path(MPI_INCLUDE_PATH mpi.h + HINTS ${MPI_BASE_DIR} ${MPI_PREFIX_PATH} + PATH_SUFFIXES include + ) set(MPI_INCLUDE_PATH_WORK ${MPI_INCLUDE_PATH}) endif (NOT MPI_INCLUDE_PATH_WORK) @@ -200,7 +241,7 @@ elseif (MPI_COMPILE_CMDLINE) if (MPI_COMPILER_MAY_HAVE_INCLIBDIRS) # The compile command line didn't have any linking paths on it, # but we may have -showme:libdirs. Use it. - exec_program(${MPI_COMPILER} + exec_program(${MPI_COMPILER} ARGS -showme:libdirs OUTPUT_VARIABLE MPI_LINK_PATH RETURN_VALUE MPI_COMPILER_RETURN) @@ -261,41 +302,29 @@ elseif (MPI_COMPILE_CMDLINE) set(MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH_WORK} CACHE STRING "MPI include path" FORCE) set(MPI_LINK_FLAGS ${MPI_LINK_FLAGS_WORK} CACHE STRING "MPI linking flags" FORCE) else (MPI_COMPILE_CMDLINE) - find_path(MPI_INCLUDE_PATH mpi.h - /usr/local/include - /usr/include - /usr/include/mpi - /usr/local/mpi/include - "$ENV{SystemDrive}/Program Files/MPICH/SDK/Include" - "${ProgramFiles}/MPICH2/include" - "$ENV{SystemDrive}/Program Files/Microsoft Compute Cluster Pack/Include" - "$ENV{SystemDrive}/Program Files/Microsoft HPC Pack 2008 SDK/Include" +# No MPI compiler to interogate so attempt to find everything with find functions. + find_path(MPI_INCLUDE_PATH mpi.h + HINTS ${MPI_BASE_DIR} ${MPI_PREFIX_PATH} + PATH_SUFFIXES include ) # Decide between 32-bit and 64-bit libraries for Microsoft's MPI - if (CMAKE_CL_64) + if("${CMAKE_SIZEOF_VOID_P}" EQUAL 8) set(MS_MPI_ARCH_DIR amd64) - else (CMAKE_CL_64) + else() set(MS_MPI_ARCH_DIR i386) - endif (CMAKE_CL_64) + endif() - find_library(MPI_LIBRARY + find_library(MPI_LIBRARY NAMES mpi mpich msmpi - PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib - "$ENV{SystemDrive}/Program Files/MPICH/SDK/Lib" - "${ProgramFiles}/MPICH2/Lib" - "$ENV{SystemDrive}/Program Files/Microsoft Compute Cluster Pack/Lib/${MS_MPI_ARCH_DIR}" - "$ENV{SystemDrive}/Program Files/Microsoft HPC Pack 2008 SDK/Lib/${MS_MPI_ARCH_DIR}" + HINTS ${MPI_BASE_DIR} ${MPI_PREFIX_PATH} + PATH_SUFFIXES lib lib/${MS_MPI_ARCH_DIR} Lib Lib/${MS_MPI_ARCH_DIR} ) - find_library(MPI_LIBRARY - NAMES mpich2 - PATHS - "${ProgramFiles}/MPICH2/Lib") - find_library(MPI_EXTRA_LIBRARY + find_library(MPI_EXTRA_LIBRARY NAMES mpi++ - PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib - "$ENV{SystemDrive}/Program Files/MPICH/SDK/Lib" + HINTS ${MPI_BASE_DIR} ${MPI_PREFIX_PATH} + PATH_SUFFIXES lib DOC "Extra MPI libraries to link against.") set(MPI_COMPILE_FLAGS "" CACHE STRING "MPI compilation flags") @@ -308,7 +337,7 @@ if("${MPI_LIBRARY}" MATCHES "mpich.rts") set(MPI_LIBRARY ${MPI_LIBRARY} msglayer.rts devices.rts rts.rts devices.rts) endif("${MPI_LIBRARY}" MATCHES "mpich.rts") -# Set up extra variables to conform to +# Set up extra variables to conform to if (MPI_EXTRA_LIBRARY) set(MPI_LIBRARIES ${MPI_LIBRARY} ${MPI_EXTRA_LIBRARY}) else (MPI_EXTRA_LIBRARY) @@ -322,8 +351,13 @@ else (MPI_INCLUDE_PATH AND MPI_LIBRARY) endif (MPI_INCLUDE_PATH AND MPI_LIBRARY) include(FindPackageHandleStandardArgs) -# handle the QUIETLY and REQUIRED arguments +# handle the QUIETLY and REQUIRED arguments find_package_handle_standard_args(MPI DEFAULT_MSG MPI_LIBRARY MPI_INCLUDE_PATH) -mark_as_advanced(MPI_INCLUDE_PATH MPI_COMPILE_FLAGS MPI_LINK_FLAGS MPI_LIBRARY +mark_as_advanced(MPI_INCLUDE_PATH MPI_COMPILE_FLAGS MPI_LINK_FLAGS MPI_LIBRARY MPI_EXTRA_LIBRARY) + +# unset to cleanup namespace +unset(MPI_PACKAGE_DIR) +unset(MPI_PREFIX_PATH) +unset(MPI_BASE_DIR) |