From fa8ed205ba074d19c2a66855a6ecdb959ef38e0d Mon Sep 17 00:00:00 2001 From: Allen Byrne Date: Thu, 7 Sep 2017 10:00:19 -0500 Subject: HDFFV-9988 merge findmpi from cmake and add intel path --- config/cmake_ext_mod/FindMPI.cmake | 130 +++++++++++++++++++++++++------------ 1 file changed, 87 insertions(+), 43 deletions(-) diff --git a/config/cmake_ext_mod/FindMPI.cmake b/config/cmake_ext_mod/FindMPI.cmake index ff1ead2..f566ade 100644 --- a/config/cmake_ext_mod/FindMPI.cmake +++ b/config/cmake_ext_mod/FindMPI.cmake @@ -9,71 +9,78 @@ # The Message Passing Interface (MPI) is a library used to write # high-performance distributed-memory parallel applications, 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 them have somewhat different include paths, libraries to link -# against, etc., and this module tries to smooth out those differences. +# by the MPI forum) for which many implementations are available. # # Variables # ^^^^^^^^^ # # This module will set the following variables per language in your -# project, where is one of C, CXX, or Fortran: -# -# :: -# -# MPI__FOUND TRUE if FindMPI found MPI flags for -# MPI__COMPILER MPI Compiler wrapper for -# MPI__COMPILE_FLAGS Compilation flags for MPI programs -# MPI__INCLUDE_PATH Include path(s) for MPI header -# MPI__LINK_FLAGS Linking flags for MPI programs -# MPI__LIBRARIES All libraries to link MPI programs against +# project, where ```` is one of C, CXX, or Fortran: +# +# ``MPI__FOUND`` +# Variable indicating the MPI settings for ```` were found. +# ``MPI__COMPILER`` +# MPI Compiler wrapper for ````. +# ``MPI__COMPILE_FLAGS`` +# Compilation flags for MPI programs, separated by spaces. +# This is *not* a :ref:`;-list `. +# ``MPI__INCLUDE_PATH`` +# Include path(s) for MPI header. +# ``MPI__LINK_FLAGS`` +# Linker flags for MPI programs. +# ``MPI__LIBRARIES`` +# All libraries to link MPI programs against. +# +# Additionally, the following :prop_tgt:`IMPORTED` targets are defined: +# +# ``MPI::MPI_`` +# Target for using MPI from ````. # # Additionally, FindMPI sets the following variables for running MPI # programs from the command line: # -# :: -# -# 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 other flags +# ``MPIEXEC`` +# Executable for running MPI programs, if provided. +# ``MPIEXEC_NUMPROC_FLAG`` +# Flag to pass to ``MPIEXEC`` before giving it the number of processors to run on. +# ``MPIEXEC_MAX_NUMPROCS`` +# Number of MPI processors to utilize. Defaults to the number +# of processors detected on the host system. +# ``MPIEXEC_PREFLAGS`` +# Flags to pass to ``MPIEXEC`` directly before the executable to run. +# ``MPIEXEC_POSTFLAGS`` +# Flags to pass to ``MPIEXEC`` after other flags. # # Usage # ^^^^^ # -# To use this module, simply call FindMPI from a CMakeLists.txt file, or -# run ``find_package(MPI)``, then run CMake. If you are happy with the +# To use this module, call ``find_package(MPI)``. If you are happy with the # auto-detected configuration for your language, then you're done. If # not, you have two options: # -# :: -# -# 1. Set MPI__COMPILER to the MPI wrapper (mpicc, etc.) of your -# choice and reconfigure. FindMPI will attempt to determine all the -# necessary variables using THAT compiler's compile and link flags. -# 2. If this fails, or if your MPI implementation does not come with -# a compiler wrapper, then set both MPI__LIBRARIES and -# MPI__INCLUDE_PATH. You may also set any other variables -# listed above, but these two are required. This will circumvent -# autodetection entirely. +# 1. Set ``MPI__COMPILER`` to the MPI wrapper (e.g. ``mpicc``) of your +# choice and reconfigure. FindMPI will attempt to determine all the +# necessary variables using *that* compiler's compile and link flags. +# 2. If this fails, or if your MPI implementation does not come with +# a compiler wrapper, then set both ``MPI__LIBRARIES`` and +# ``MPI__INCLUDE_PATH``. You may also set any other variables +# listed above, but these two are required. This will circumvent +# autodetection entirely. # # When configuration is successful, ``MPI__COMPILER`` will be set to -# the compiler wrapper for , if it was found. ``MPI__FOUND`` +# the compiler wrapper for ````, if it was found. ``MPI__FOUND`` # and other variables above will be set if any MPI implementation was -# found for , regardless of whether a compiler was found. +# found for ````, regardless of whether a compiler was found. # # When using ``MPIEXEC`` to execute MPI applications, you should typically # use all of the ``MPIEXEC`` flags as follows: # # :: # -# ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} PROCS +# ${MPIEXEC} ${MPIEXEC_NUMPROC_FLAG} ${MPIEXEC_MAX_NUMPROCS} # ${MPIEXEC_PREFLAGS} EXECUTABLE ${MPIEXEC_POSTFLAGS} ARGS # -# where ``PROCS`` is the number of processors on which to execute the -# program, ``EXECUTABLE`` is the MPI program, and ``ARGS`` are the arguments to +# where ``EXECUTABLE`` is the MPI program, and ``ARGS`` are the arguments to # pass to the MPI program. # # Backward Compatibility @@ -101,12 +108,12 @@ include(GetPrerequisites) # The compilers are detected in this order: # # 1. Try to find the most generic available MPI compiler, as this is usually set up by -# cluster admins. e.g., if plain old mpicc is available, we'll use it and assume it's +# cluster admins, e.g. if plain old mpicc is available, we'll use it and assume it's # the right compiler. # # 2. If a generic mpicc is NOT found, then we attempt to find one that matches # CMAKE__COMPILER_ID. e.g. if you are using XL compilers, we'll try to find mpixlc -# and company, but not mpiicc. This hopefully prevents toolchain mismatches. +# and company, but not mpiicc. This hopefully prevents toolchain mismatches. # # If you want to force a particular MPI compiler other than what we autodetect (e.g. if you # want to compile regular stuff with GNU and parallel stuff with Intel), you can always set @@ -175,6 +182,9 @@ if(WIN32) list(APPEND _MPI_PREFIX_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MPICH\\SMPD;binary]/..") list(APPEND _MPI_PREFIX_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MPICH2;Path]") list(APPEND _MPI_PREFIX_PATH "$ENV{ProgramW6432}/MPICH2/") + # INTEL MPI + list(APPEND _MPI_PREFIX_PATH "$ENV{I_MPI_ROOT}/intel64/") + endif() # Build a list of prefixes to search for MPI. @@ -495,7 +505,7 @@ function (interrogate_mpi_compiler lang try_libs) set(MPI_${lang}_LIBRARIES ${MPI_LIBRARIES_WORK} CACHE STRING "MPI ${lang} libraries to link against" FORCE) mark_as_advanced(MPI_${lang}_COMPILE_FLAGS MPI_${lang}_INCLUDE_PATH MPI_${lang}_LINK_FLAGS MPI_${lang}_LIBRARIES) - # clear out our temporary lib/header detectionv variable here. + # clear out our temporary lib/header detection variable here. set(MPI_LIB "MPI_LIB-NOTFOUND" CACHE INTERNAL "Scratch variable for MPI lib detection" FORCE) set(MPI_HEADER_PATH "MPI_HEADER_PATH-NOTFOUND" CACHE INTERNAL "Scratch variable for MPI header detection" FORCE) endif() @@ -565,10 +575,21 @@ find_program(MPIEXEC get_filename_component(_MPI_BASE_DIR "${MPIEXEC}" PATH) get_filename_component(_MPI_BASE_DIR "${_MPI_BASE_DIR}" PATH) -set(MPIEXEC_NUMPROC_FLAG "-np" CACHE STRING "Flag used by MPI to specify the number of processes for MPIEXEC; the next option will be the number of processes.") +# According to the MPI standard, section 8.8 -n is a guaranteed, and the only guaranteed way to +# launch an MPI process using mpiexec if such a program exists. +set(MPIEXEC_NUMPROC_FLAG "-n" CACHE STRING "Flag used by MPI to specify the number of processes for MPIEXEC; the next option will be the number of processes.") set(MPIEXEC_PREFLAGS "" CACHE STRING "These flags will be directly before the executable that is being run by MPIEXEC.") set(MPIEXEC_POSTFLAGS "" CACHE STRING "These flags will come after all flags given to MPIEXEC.") -set(MPIEXEC_MAX_NUMPROCS "2" CACHE STRING "Maximum number of processors available to run MPI applications.") + +# Set the number of processes to the processor count and the previous default +# of 2 if that couldn't be determined. +include(${CMAKE_ROOT}/Modules/ProcessorCount.cmake) +ProcessorCount(_MPIEXEC_NUMPROCS) +if("${_MPIEXEC_NUMPROCS}" EQUAL "0") + set(_MPIEXEC_NUMPROCS 2) +endif() +set(MPIEXEC_MAX_NUMPROCS "${_MPIEXEC_NUMPROCS}" CACHE STRING "Maximum number of processors available to run MPI applications.") +unset(_MPIEXEC_NUMPROCS) mark_as_advanced(MPIEXEC MPIEXEC_NUMPROC_FLAG MPIEXEC_PREFLAGS MPIEXEC_POSTFLAGS MPIEXEC_MAX_NUMPROCS) @@ -643,6 +664,28 @@ foreach (lang C CXX Fortran) else() find_package_handle_standard_args(MPI_${lang} DEFAULT_MSG MPI_${lang}_LIBRARIES MPI_${lang}_INCLUDE_PATH) endif() + + if(MPI_${lang}_FOUND) + if(NOT TARGET MPI::MPI_${lang}) + add_library(MPI::MPI_${lang} INTERFACE IMPORTED) + endif() + if(MPI_${lang}_COMPILE_FLAGS) + separate_arguments(_MPI_${lang}_COMPILE_OPTIONS NATIVE_COMMAND "${MPI_${lang}_COMPILE_FLAGS}") + set_property(TARGET MPI::MPI_${lang} PROPERTY + INTERFACE_COMPILE_OPTIONS "${_MPI_${lang}_COMPILE_OPTIONS}") + endif() + + unset(_MPI_${lang}_LINK_LINE) + if(MPI_${lang}_LINK_FLAGS) + list(APPEND _MPI_${lang}_LINK_LINE "${MPI_${lang}_LINK_FLAGS}") + endif() + list(APPEND _MPI_${lang}_LINK_LINE "${MPI_${lang}_LIBRARIES}") + set_property(TARGET MPI::MPI_${lang} PROPERTY + INTERFACE_LINK_LIBRARIES "${_MPI_${lang}_LINK_LINE}") + + set_property(TARGET MPI::MPI_${lang} PROPERTY + INTERFACE_INCLUDE_DIRECTORIES "${MPI_${lang}_INCLUDE_PATH}") + endif() endif() endforeach() @@ -682,6 +725,7 @@ if (MPI_NUMLIBS GREATER 1) else() set(MPI_EXTRA_LIBRARY "MPI_EXTRA_LIBRARY-NOTFOUND" CACHE STRING "Extra MPI libraries to link against" FORCE) endif() +mark_as_advanced(MPI_LIBRARY MPI_EXTRA_LIBRARY) #============================================================================= # unset these vars to cleanup namespace -- cgit v0.12