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ENH: Enhance FindMPI module by properly handling backward compatibility with the older module, adding documentation, and coping with multiple include and linker paths

This commit is contained in:
Douglas Gregor 2008-03-31 10:55:32 -04:00
parent b03c246a00
commit 5b3e62c7bc
1 changed files with 132 additions and 96 deletions
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228
Modules/FindMPI.cmake
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@ -1,95 +1,132 @@
# This module looks for the Message Passing Interface (MPI). # - 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
# (defined by the MPI forum) for which many implementations are
# available. All of these implementations have somewhat different
# compilation approaches (different include paths, libraries to link
# against, etc.), and this module tries to smooth out those differences.
# #
# This module will set the following variables: # This module will set the following variables:
# MPI_FOUND TRUE if we have found MPI # MPI_FOUND TRUE if we have found MPI
# MPI_COMPILE_FLAGS Compilation flags for MPI programs # MPI_COMPILE_FLAGS Compilation flags for MPI programs
# MPI_INCLUDE_PATH Include path for MPI header # MPI_INCLUDE_PATH Include path(s) for MPI header
# MPI_LINK_FLAGS Linking flags for MPI programs # MPI_LINK_FLAGS Linking flags for MPI programs
# MPI_LIBRARIES Libraries to link MPI programs against # MPI_LIBRARY First MPI library to link against (cached)
# MPI_LIBRARY Deprecated; first MPI library to link against # MPI_EXTRA_LIBRARY Extra MPI libraries to link against (cached)
# MPI_EXTRA_LIBRARY Deprecated; second MPI library to link against # MPI_LIBRARIES All libraries to link MPI programs against
# MPIEXEC Executable for running MPI programs # MPIEXEC Executable for running MPI programs
# MPIEXEC_NUMPROC_FLAG Flag to pass to MPIEXEC before giving it the
# number of processors to run on
# MPIEXEC_PREFLAGS Flags to pass to MPIEXEC directly before the
# executable to run.
# MPIEXEC_POSTFLAGS Flags to pass to MPIEXEC after all other flags.
# #
# This module will attempt to auto-detect these settings, first by # This module will attempt to auto-detect these settings, first by
# looking for a C++ MPI driver (e.g., mpic++, mpiCC, or mpicxx; set by # looking for a MPI compiler, which many MPI implementations provide
# MPICXX) and later by checking common MPI paths and library names. # as a pass-through to the native compiler to simplify the compilation
# of MPI programs. The MPI compiler is stored in the cache variable
# MPI_COMPILER, and will attempt to look for commonly-named drivers
# mpic++, mpicxx, mpiCC, or mpicc. If the compiler driver is found and
# recognized, it will be used to set all of the module variables. To
# skip this auto-detection, set MPI_LIBRARY and MPI_INCLUDE_PATH in
# the CMake cache.
#
# 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.
#
# If CMake initially finds a different MPI than was intended, and you
# want to use the MPI compiler auto-detection for a different MPI
# implementation, set MPI_COMPILER to the MPI compiler driver you want
# to use (e.g., mpicxx) and then set MPI_LIBRARY to the string
# MPI_LIBRARY-NOTFOUND. When you re-configure, auto-detection of MPI
# will run again with the newly-specified MPI_COMPILER.
#
# When using MPIEXEC to execute MPI applications, you should typically
# use all of the MPIEXEC flags as follows:
# ${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
# MPI program.
# Try to find the MPI driver program # Try to find the MPI driver program
find_program(MPICXX find_program(MPI_COMPILER
NAMES mpic++ mpicxx mpiCC NAMES mpic++ mpicxx mpiCC mpicc
DOC "MPI C++ compiler. Used only to detect MPI compilation flags.") DOC "MPI compiler. Used only to detect MPI compilation flags.")
mark_as_advanced(MPICXX) mark_as_advanced(MPI_COMPILER)
find_program(MPIEXEC find_program(MPIEXEC
NAMES mpiexec mpirun NAMES mpiexec mpirun lamexec
DOC "Executable for running MPI programs.") DOC "Executable for running MPI programs.")
mark_as_advanced(MPIEXEC)
if (NOT OLD_MPICXX STREQUAL MPICXX) 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(MPI_FORCE_RECONFIGURE TRUE) set(MPIEXEC_PREFLAGS "" CACHE STRING "These flags will be directly before the executable that is being run by MPIEXEC.")
set(OLD_MPICXX ${MPICXX} CACHE INTERNAL "Previous value of MPICXX" FORCE) set(MPIEXEC_POSTFLAGS "" CACHE STRING "These flags will come after all flags given to MPIEXEC.")
endif (NOT OLD_MPICXX STREQUAL MPICXX) set(MPIEXEC_MAX_NUMPROCS "2" CACHE STRING "Maximum number of processors available to run MPI applications.")
mark_as_advanced(MPIEXEC MPIEXEC_NUMPROC_FLAG MPIEXEC_PREFLAGS
if (NOT MPICXX) MPIEXEC_POSTFLAGS MPIEXEC_MAX_NUMPROCS)
# If there is no MPI C++ compiler, we force ourselves to configure
# MPI the old way.
set(MPI_FORCE_RECONFIGURE TRUE)
endif (NOT MPICXX)
if (MPICXX) if (MPI_INCLUDE_PATH AND MPI_LIBRARY)
# Do nothing: we already have MPI_INCLUDE_PATH and MPI_LIBRARY in
# the cache, and we don't want to override those settings.
elseif (MPI_COMPILER)
# Check whether the -showme:compile option works. This indicates # Check whether the -showme:compile option works. This indicates
# that we have either Open MPI or a newer version of LAM-MPI, and # that we have either Open MPI or a newer version of LAM-MPI, and
# implies that -showme:link will also work. # implies that -showme:link will also work.
exec_program(${MPICXX} exec_program(${MPI_COMPILER}
ARGS -showme:compile ARGS -showme:compile
OUTPUT_VARIABLE MPI_COMPILE_CMDLINE OUTPUT_VARIABLE MPI_COMPILE_CMDLINE
RETURN_VALUE MPICXX_RETURN) RETURN_VALUE MPI_COMPILER_RETURN)
if (MPICXX_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0)
# If we appear to have -showme:compile, then we should also have # If we appear to have -showme:compile, then we should also have
# -showme:link. Try it. # -showme:link. Try it.
exec_program(${MPICXX} exec_program(${MPI_COMPILER}
ARGS -showme:link ARGS -showme:link
OUTPUT_VARIABLE MPI_LINK_CMDLINE OUTPUT_VARIABLE MPI_LINK_CMDLINE
RETURN_VALUE MPICXX_RETURN) RETURN_VALUE MPI_COMPILER_RETURN)
endif (MPICXX_RETURN EQUAL 0) endif (MPI_COMPILER_RETURN EQUAL 0)
if (MPICXX_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0)
# Do nothing: we have our command lines now # Do nothing: we have our command lines now
else (MPICXX_RETURN EQUAL 0) else (MPI_COMPILER_RETURN EQUAL 0)
# Older versions of LAM-MPI have "-showme". Try it. # Older versions of LAM-MPI have "-showme". Try it.
exec_program(${MPICXX} exec_program(${MPI_COMPILER}
ARGS -showme ARGS -showme
OUTPUT_VARIABLE MPI_COMPILE_CMDLINE OUTPUT_VARIABLE MPI_COMPILE_CMDLINE
RETURN_VALUE MPICXX_RETURN) RETURN_VALUE MPI_COMPILER_RETURN)
endif (MPICXX_RETURN EQUAL 0) endif (MPI_COMPILER_RETURN EQUAL 0)
if (MPICXX_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0)
# Do nothing: we have our command lines now # Do nothing: we have our command lines now
else (MPICXX_RETURN EQUAL 0) else (MPI_COMPILER_RETURN EQUAL 0)
# MPICH uses "-show". Try it. # MPICH uses "-show". Try it.
exec_program(${MPICXX} exec_program(${MPI_COMPILER}
ARGS -show ARGS -show
OUTPUT_VARIABLE MPI_COMPILE_CMDLINE OUTPUT_VARIABLE MPI_COMPILE_CMDLINE
RETURN_VALUE MPICXX_RETURN) RETURN_VALUE MPI_COMPILER_RETURN)
endif (MPICXX_RETURN EQUAL 0) endif (MPI_COMPILER_RETURN EQUAL 0)
if (MPICXX_RETURN EQUAL 0) if (MPI_COMPILER_RETURN EQUAL 0)
# We have our command lines, but we might need to copy # We have our command lines, but we might need to copy
# MPI_COMPILE_CMDLINE into MPI_LINK_CMDLINE, if the underlying # MPI_COMPILE_CMDLINE into MPI_LINK_CMDLINE, if the underlying
if (NOT MPI_LINK_CMDLINE) if (NOT MPI_LINK_CMDLINE)
SET(MPI_LINK_CMDLINE ${MPI_COMPILE_CMDLINE}) SET(MPI_LINK_CMDLINE ${MPI_COMPILE_CMDLINE})
endif (NOT MPI_LINK_CMDLINE) endif (NOT MPI_LINK_CMDLINE)
else (MPICXX_RETURN EQUAL 0) else (MPI_COMPILER_RETURN EQUAL 0)
message(STATUS "Unable to determine MPI from MPI driver ${MPICXX}") message(STATUS "Unable to determine MPI from MPI driver ${MPI_COMPILER}")
endif (MPICXX_RETURN EQUAL 0) endif (MPI_COMPILER_RETURN EQUAL 0)
endif (MPICXX) endif (MPI_INCLUDE_PATH AND MPI_LIBRARY)
if (NOT MPI_FORCE_RECONFIGURE) if (MPI_INCLUDE_PATH AND MPI_LIBRARY)
# We don't actually have to reconfigure anything # Do nothing: we already have MPI_INCLUDE_PATH and MPI_LIBRARY in
# the cache, and we don't want to override those settings.
elseif (MPI_COMPILE_CMDLINE) elseif (MPI_COMPILE_CMDLINE)
# Extract compile flags from the compile command line. # Extract compile flags from the compile command line.
string(REGEX MATCHALL "-D([^\" ]+|\"[^\"]+\")" MPI_ALL_COMPILE_FLAGS ${MPI_COMPILE_CMDLINE}) string(REGEX MATCHALL "-D([^\" ]+|\"[^\"]+\")" MPI_ALL_COMPILE_FLAGS "${MPI_COMPILE_CMDLINE}")
set(MPI_COMPILE_FLAGS_WORK) set(MPI_COMPILE_FLAGS_WORK)
foreach(FLAG ${MPI_ALL_COMPILE_FLAGS}) foreach(FLAG ${MPI_ALL_COMPILE_FLAGS})
if (MPI_COMPILE_FLAGS_WORK) if (MPI_COMPILE_FLAGS_WORK)
@ -100,17 +137,25 @@ elseif (MPI_COMPILE_CMDLINE)
endforeach(FLAG) endforeach(FLAG)
# Extract include paths from compile command line # Extract include paths from compile command line
string(REGEX MATCH "-I([^\" ]+|\"[^\"]+\")" MPI_INCLUDE_PATH ${MPI_COMPILE_CMDLINE}) string(REGEX MATCHALL "-I([^\" ]+|\"[^\"]+\")" MPI_ALL_INCLUDE_PATHS "${MPI_COMPILE_CMDLINE}")
string(REGEX REPLACE "^-I" "" MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH}) set(MPI_INCLUDE_PATH_WORK)
string(REGEX REPLACE "//" "/" MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH}) foreach(IPATH ${MPI_ALL_INCLUDE_PATHS})
string(REGEX REPLACE "^-I" "" IPATH ${IPATH})
string(REGEX REPLACE "//" "/" IPATH ${IPATH})
list(APPEND MPI_INCLUDE_PATH_WORK ${IPATH})
endforeach(IPATH)
# Extract linker paths from the link command line # Extract linker paths from the link command line
string(REGEX MATCH "-L([^\" ]+|\"[^\"]+\")" MPI_LINK_PATH ${MPI_LINK_CMDLINE}) string(REGEX MATCHALL "-L([^\" ]+|\"[^\"]+\")" MPI_ALL_LINK_PATHS "${MPI_LINK_CMDLINE}")
string(REGEX REPLACE "^-L" "" MPI_LINK_PATH ${MPI_LINK_PATH}) set(MPI_LINK_PATH)
string(REGEX REPLACE "//" "/" MPI_LINK_PATH ${MPI_LINK_PATH}) foreach(LPATH ${MPI_ALL_LINK_PATHS})
string(REGEX REPLACE "^-L" "" LPATH ${LPATH})
string(REGEX REPLACE "//" "/" LPATH ${LPATH})
list(APPEND MPI_LINK_PATH ${LPATH})
endforeach(LPATH)
# Extract linker flags from the link command line # Extract linker flags from the link command line
string(REGEX MATCHALL "-Wl,([^\" ]+|\"[^\"]+\")" MPI_ALL_LINK_FLAGS ${MPI_LINK_CMDLINE}) string(REGEX MATCHALL "-Wl,([^\" ]+|\"[^\"]+\")" MPI_ALL_LINK_FLAGS "${MPI_LINK_CMDLINE}")
set(MPI_LINK_FLAGS_WORK) set(MPI_LINK_FLAGS_WORK)
foreach(FLAG ${MPI_ALL_LINK_FLAGS}) foreach(FLAG ${MPI_ALL_LINK_FLAGS})
if (MPI_LINK_FLAGS_WORK) if (MPI_LINK_FLAGS_WORK)
@ -122,7 +167,7 @@ elseif (MPI_COMPILE_CMDLINE)
# Extract the set of libraries to link against from the link command # Extract the set of libraries to link against from the link command
# line # line
string(REGEX MATCHALL "-l([^\" ]+|\"[^\"]+\")" MPI_LIBNAMES ${MPI_LINK_CMDLINE}) string(REGEX MATCHALL "-l([^\" ]+|\"[^\"]+\")" MPI_LIBNAMES "${MPI_LINK_CMDLINE}")
# Determine full path names for all of the libraries that one needs # Determine full path names for all of the libraries that one needs
# to link against in an MPI program # to link against in an MPI program
@ -143,31 +188,23 @@ elseif (MPI_COMPILE_CMDLINE)
# MPI_EXTRA_LIBRARY. # MPI_EXTRA_LIBRARY.
list(LENGTH MPI_LIBRARIES MPI_NUMLIBS) list(LENGTH MPI_LIBRARIES MPI_NUMLIBS)
if (MPI_NUMLIBS GREATER 0) if (MPI_NUMLIBS GREATER 0)
list(GET MPI_LIBRARIES 0 MPI_LIBRARY) list(GET MPI_LIBRARIES 0 MPI_LIBRARY_WORK)
set(MPI_LIBRARY ${MPI_LIBRARY_WORK} CACHE FILEPATH "MPI library to link against" FORCE)
else (MPI_NUMLIBS GREATER 0) else (MPI_NUMLIBS GREATER 0)
set(MPI_LIBRARY "MPI_LIBRARY-NOTFOUND") set(MPI_LIBRARY "MPI_LIBRARY-NOTFOUND" CACHE STRING "MPI library to link against" FORCE)
endif (MPI_NUMLIBS GREATER 0) endif (MPI_NUMLIBS GREATER 0)
if (MPI_NUMLIBS GREATER 1) if (MPI_NUMLIBS GREATER 1)
set(MPI_EXTRA_LIBRARY ${MPI_LIBRARIES}) set(MPI_EXTRA_LIBRARY_WORK ${MPI_LIBRARIES})
list(REMOVE_AT MPI_EXTRA_LIBRARY 0) list(REMOVE_AT MPI_EXTRA_LIBRARY_WORK 0)
set(MPI_EXTRA_LIBRARY ${MPI_EXTRA_LIBRARY_WORK} CACHE STRING "Extra MPI libraries to link against" FORCE)
else (MPI_NUMLIBS GREATER 1) else (MPI_NUMLIBS GREATER 1)
set(MPI_EXTRA_LIBRARY "MPI_EXTRA_LIBRARY-NOTFOUND") set(MPI_EXTRA_LIBRARY "MPI_EXTRA_LIBRARY-NOTFOUND" CACHE STRING "Extra MPI libraries to link against" FORCE)
endif (MPI_NUMLIBS GREATER 1) endif (MPI_NUMLIBS GREATER 1)
# Set up all of the appropriate cache entries # Set up all of the appropriate cache entries
set(MPI_FOUND TRUE CACHE INTERNAL "Whether MPI was found" FORCE) set(MPI_COMPILE_FLAGS ${MPI_COMPILE_FLAGS_WORK} CACHE STRING "MPI compilation flags" FORCE)
set(MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH_WORK} CACHE STRING "MPI include path" FORCE)
if (NOT MPI_FORCE_RECONFIGURE) set(MPI_LINK_FLAGS ${MPI_LINK_FLAGS_WORK} CACHE STRING "MPI linking flags" FORCE)
set(MPI_COMPILE_FLAGS ${MPI_COMPILE_FLAGS_WORK} CACHE STRING "MPI compilation flags")
set(MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH} CACHE STRING "MPI include path")
set(MPI_LINK_FLAGS ${MPI_LINK_FLAGS_WORK} CACHE STRING "MPI linking flags")
set(MPI_LIBRARIES ${MPI_LIBRARIES} CACHE STRING "MPI libraries to link against, separated by semicolons")
else (NOT MPI_FORCE_RECONFIGURE)
set(MPI_COMPILE_FLAGS ${MPI_COMPILE_FLAGS_WORK} CACHE STRING "MPI compilation flags" FORCE)
set(MPI_INCLUDE_PATH ${MPI_INCLUDE_PATH} CACHE STRING "MPI include path" FORCE)
set(MPI_LINK_FLAGS ${MPI_LINK_FLAGS_WORK} CACHE STRING "MPI linking flags" FORCE)
set(MPI_LIBRARIES ${MPI_LIBRARIES} CACHE STRING "MPI libraries to link against, separated by semicolons" FORCE)
endif (NOT MPI_FORCE_RECONFIGURE)
else (MPI_COMPILE_CMDLINE) else (MPI_COMPILE_CMDLINE)
find_path(MPI_INCLUDE_PATH mpi.h find_path(MPI_INCLUDE_PATH mpi.h
/usr/local/include /usr/local/include
@ -176,16 +213,16 @@ else (MPI_COMPILE_CMDLINE)
/usr/local/mpi/include /usr/local/mpi/include
"C:/Program Files/MPICH/SDK/Include" "C:/Program Files/MPICH/SDK/Include"
"$ENV{SystemDrive}/Program Files/MPICH2/include" "$ENV{SystemDrive}/Program Files/MPICH2/include"
"C:/Program Files/Microsoft Compute Cluster Pack/Include" "$ENV{SystemDrive}/Program Files/Microsoft Compute Cluster Pack/Include"
) )
# TODO: How do we know whether we're building 32-bit vs. 64-bit? # TODO: How do we know whether we're building 32-bit vs. 64-bit for MS-MPI?
find_library(MPI_LIBRARY find_library(MPI_LIBRARY
NAMES mpi mpich NAMES mpi mpich
PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib
"C:/Program Files/MPICH/SDK/Lib" "C:/Program Files/MPICH/SDK/Lib"
"$ENV{SystemDrive}/Program Files/MPICH/SDK/Lib" "$ENV{SystemDrive}/Program Files/MPICH/SDK/Lib"
"C:/Program Files/Microsoft Compute Cluster Pack/Lib/i386" "$ENV{SystemDrive}/Program Files/Microsoft Compute Cluster Pack/Lib/i386"
) )
find_library(MPI_LIBRARY find_library(MPI_LIBRARY
NAMES mpich2 NAMES mpich2
@ -196,24 +233,11 @@ else (MPI_COMPILE_CMDLINE)
NAMES mpi++ NAMES mpi++
PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib PATHS /usr/lib /usr/local/lib /usr/local/mpi/lib
"C:/Program Files/MPICH/SDK/Lib" "C:/Program Files/MPICH/SDK/Lib"
"C:/Program Files/Microsoft Compute Cluster Pack/Lib/i386" DOC "Extra MPI libraries to link against.")
DOC "If a second MPI library is necessary, specify it here.")
set(MPI_COMPILE_FLAGS "" CACHE STRING "MPI compilation flags") set(MPI_COMPILE_FLAGS "" CACHE STRING "MPI compilation flags")
set(MPI_LINK_FLAGS "" CACHE STRING "MPI linking flags") set(MPI_LINK_FLAGS "" CACHE STRING "MPI linking flags")
endif (MPI_INCLUDE_PATH AND MPI_LIBRARY)
if (MPI_EXTRA_LIBRARY)
set(MPI_LIBRARIES "${MPI_LIBRARY};${MPI_EXTRA_LIBRARY}" CACHE STRING "MPI libraries to link against, separated by semicolons")
else (MPI_EXTRA_LIBRARY)
set(MPI_LIBRARIES ${MPI_LIBRARY} CACHE STRING "MPI libraries to link against, separated by semicolons")
endif (MPI_EXTRA_LIBRARY)
if (MPI_LIBRARY)
set(MPI_FOUND TRUE CACHE INTERNAL "Whether MPI was found" FORCE)
else (MPI_LIBRARY)
set(MPI_FOUND FALSE CACHE INTERNAL "Whether MPI was found" FORCE)
endif (MPI_LIBRARY)
endif (NOT MPI_FORCE_RECONFIGURE)
# on BlueGene/L the MPI lib is named libmpich.rts.a, there also these additional libs are required # on BlueGene/L the MPI lib is named libmpich.rts.a, there also these additional libs are required
if("${MPI_LIBRARY}" MATCHES "mpich.rts") if("${MPI_LIBRARY}" MATCHES "mpich.rts")
@ -221,10 +245,22 @@ if("${MPI_LIBRARY}" MATCHES "mpich.rts")
set(MPI_LIBRARY ${MPI_LIBRARY} msglayer.rts devices.rts rts.rts devices.rts) set(MPI_LIBRARY ${MPI_LIBRARY} msglayer.rts devices.rts rts.rts devices.rts)
endif("${MPI_LIBRARY}" MATCHES "mpich.rts") endif("${MPI_LIBRARY}" MATCHES "mpich.rts")
set(MPI_LIBRARY ${MPI_LIBRARY} CACHE INTERNAL "MPI library to link against. Deprecated: use MPI_LIBRARIES instead") # Set up extra variables to conform to
set(MPI_EXTRA_LIBRARY ${MPI_EXTRA_LIBRARY} CACHE INTERNAL "Second MPI library to link against. Deprecated: use MPI_LIBRARIES instead") if (MPI_EXTRA_LIBRARY)
set(MPI_LIBRARIES ${MPI_LIBRARY} ${MPI_EXTRA_LIBRARY})
else (MPI_EXTRA_LIBRARY)
set(MPI_LIBRARIES ${MPI_LIBRARY})
endif (MPI_EXTRA_LIBRARY)
if (MPI_INCLUDE_PATH AND MPI_LIBRARY)
set(MPI_FOUND TRUE)
else (MPI_INCLUDE_PATH AND MPI_LIBRARY)
set(MPI_FOUND FALSE)
endif (MPI_INCLUDE_PATH AND MPI_LIBRARY)
include(FindPackageHandleStandardArgs) 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) 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_LIBRARIES)
mark_as_advanced(MPI_INCLUDE_PATH MPI_COMPILE_FLAGS MPI_LINK_FLAGS MPI_LIBRARY
MPI_EXTRA_LIBRARY)