Remove duplicated module

1 files changed, 0 insertions, 1461 deletions

diff --git a/config/cmake_ext_mod/FindMPI.cmake b/config/cmake_ext_mod/FindMPI.cmake
deleted file mode 100644
index 61ab4a4..0000000
--- a/config/cmake_ext_mod/FindMPI.cmake
+++ /dev/null
@@ -1,1461 +0,0 @@
-# Distributed under the OSI-approved BSD 3-Clause License.  See https://cmake.org/licensing for details.
-
-#.rst:
-# FindMPI
-# -------
-#
-# Find a Message Passing Interface (MPI) implementation.
-#
-# 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.
-#
-# Variables for using MPI
-# ^^^^^^^^^^^^^^^^^^^^^^^
-#
-# The module exposes the components ``C``, ``CXX``, ``MPICXX`` and ``Fortran``.
-# Each of these controls the various MPI languages to search for.
-# The difference between ``CXX`` and ``MPICXX`` is that ``CXX`` refers to the
-# MPI C API being usable from C++, whereas ``MPICXX`` refers to the MPI-2 C++ API
-# that was removed again in MPI-3.
-#
-# Depending on the enabled components the following variables will be set:
-#
-# ``MPI_FOUND``
-#   Variable indicating that MPI settings for all requested languages have been found.
-#   If no components are specified, this is true if MPI settings for all enabled languages
-#   were detected. Note that the ``MPICXX`` component does not affect this variable.
-# ``MPI_VERSION``
-#   Minimal version of MPI detected among the requested languages, or all enabled languages
-#   if no components were specified.
-#
-# This module will set the following variables per language in your
-# project, where ``<lang>`` is one of C, CXX, or Fortran:
-#
-# ``MPI_<lang>_FOUND``
-#   Variable indicating the MPI settings for ``<lang>`` were found and that
-#   simple MPI test programs compile with the provided settings.
-# ``MPI_<lang>_COMPILER``
-#   MPI compiler for ``<lang>`` if such a program exists.
-# ``MPI_<lang>_COMPILE_OPTIONS``
-#   Compilation options for MPI programs in ``<lang>``, given as a :ref:`;-list <CMake Language Lists>`.
-# ``MPI_<lang>_COMPILE_DEFINITIONS``
-#   Compilation definitions for MPI programs in ``<lang>``, given as a :ref:`;-list <CMake Language Lists>`.
-# ``MPI_<lang>_INCLUDE_DIRS``
-#   Include path(s) for MPI header.
-# ``MPI_<lang>_LINK_FLAGS``
-#   Linker flags for MPI programs.
-# ``MPI_<lang>_LIBRARIES``
-#   All libraries to link MPI programs against.
-#
-# Additionally, the following :prop_tgt:`IMPORTED` targets are defined:
-#
-# ``MPI::MPI_<lang>``
-#   Target for using MPI from ``<lang>``.
-#
-# The following variables indicating which bindings are present will be defined:
-#
-# ``MPI_MPICXX_FOUND``
-#   Variable indicating whether the MPI-2 C++ bindings are present (introduced in MPI-2, removed with MPI-3).
-# ``MPI_Fortran_HAVE_F77_HEADER``
-#   True if the Fortran 77 header ``mpif.h`` is available.
-# ``MPI_Fortran_HAVE_F90_MODULE``
-#   True if the Fortran 90 module ``mpi`` can be used for accessing MPI (MPI-2 and higher only).
-# ``MPI_Fortran_HAVE_F08_MODULE``
-#   True if the Fortran 2008 ``mpi_f08`` is available to MPI programs (MPI-3 and higher only).
-#
-# If possible, the MPI version will be determined by this module. The facilities to detect the MPI version
-# were introduced with MPI-1.2, and therefore cannot be found for older MPI versions.
-#
-# ``MPI_<lang>_VERSION_MAJOR``
-#   Major version of MPI implemented for ``<lang>`` by the MPI distribution.
-# ``MPI_<lang>_VERSION_MINOR``
-#   Minor version of MPI implemented for ``<lang>`` by the MPI distribution.
-# ``MPI_<lang>_VERSION``
-#   MPI version implemented for ``<lang>`` by the MPI distribution.
-#
-# Note that there's no variable for the C bindings being accessible through ``mpi.h``, since the MPI standards
-# always have required this binding to work in both C and C++ code.
-#
-# For running MPI programs, the module sets the following variables
-#
-# ``MPIEXEC_EXECUTABLE``
-#   Executable for running MPI programs, if such exists.
-# ``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.
-#
-# Variables for locating MPI
-# ^^^^^^^^^^^^^^^^^^^^^^^^^^
-#
-# This module performs a three step search for an MPI implementation:
-#
-# 1. Check if the compiler has MPI support built-in. This is the case if the user passed a
-#    compiler wrapper as ``CMAKE_<LANG>_COMPILER`` or if they're on a Cray system.
-# 2. Attempt to find an MPI compiler wrapper and determine the compiler information from it.
-# 3. Try to find an MPI implementation that does not ship such a wrapper by guessing settings.
-#    Currently, only Microsoft MPI and MPICH2 on Windows are supported.
-#
-# For controlling the second step, the following variables may be set:
-#
-# ``MPI_<lang>_COMPILER``
-#   Search for the specified compiler wrapper and use it.
-# ``MPI_<lang>_COMPILER_FLAGS``
-#   Flags to pass to the MPI compiler wrapper during interrogation. Some compiler wrappers
-#   support linking debug or tracing libraries if a specific flag is passed and this variable
-#   may be used to obtain them.
-# ``MPI_COMPILER_FLAGS``
-#   Used to initialize ``MPI_<lang>_COMPILER_FLAGS`` if no language specific flag has been given.
-#   Empty by default.
-# ``MPI_EXECUTABLE_SUFFIX``
-#   A suffix which is appended to all names that are being looked for. For instance you may set this
-#   to ``.mpich`` or ``.openmpi`` to prefer the one or the other on Debian and its derivatives.
-#
-# In order to control the guessing step, the following variable may be set:
-#
-# ``MPI_GUESS_LIBRARY_NAME``
-#   Valid values are ``MSMPI`` and ``MPICH2``. If set, only the given library will be searched for.
-#   By default, ``MSMPI`` will be preferred over ``MPICH2`` if both are available.
-#   This also sets ``MPI_SKIP_COMPILER_WRAPPER`` to ``true``, which may be overridden.
-#
-# Each of the search steps may be skipped with the following control variables:
-#
-# ``MPI_ASSUME_NO_BUILTIN_MPI``
-#   If true, the module assumes that the compiler itself does not provide an MPI implementation and
-#   skips to step 2.
-# ``MPI_SKIP_COMPILER_WRAPPER``
-#   If true, no compiler wrapper will be searched for.
-# ``MPI_SKIP_GUESSING``
-#   If true, the guessing step will be skipped.
-#
-# Additionally, the following control variable is available to change search behavior:
-#
-# ``MPI_CXX_SKIP_MPICXX``
-#   Add some definitions that will disable the MPI-2 C++ bindings.
-#   Currently supported are MPICH, Open MPI, Platform MPI and derivatives thereof,
-#   for example MVAPICH or Intel MPI.
-#
-# If the find procedure fails for a variable ``MPI_<lang>_WORKS``, then the settings detected by or passed to
-# the module did not work and even a simple MPI test program failed to compile.
-#
-# If all of these parameters were not sufficient to find the right MPI implementation, a user may
-# disable the entire autodetection process by specifying both a list of libraries in ``MPI_<lang>_LIBRARIES``
-# and a list of include directories in ``MPI_<lang>_ADDITIONAL_INCLUDE_DIRS``.
-# Any other variable may be set in addition to these two. The module will then validate the MPI settings and store the
-# settings in the cache.
-#
-# Cache variables for MPI
-# ^^^^^^^^^^^^^^^^^^^^^^^
-#
-# The variable ``MPI_<lang>_INCLUDE_DIRS`` will be assembled from the following variables.
-# For C and CXX:
-#
-# ``MPI_<lang>_HEADER_DIR``
-#   Location of the ``mpi.h`` header on disk.
-#
-# For Fortran:
-#
-# ``MPI_Fortran_F77_HEADER_DIR``
-#   Location of the Fortran 77 header ``mpif.h``, if it exists.
-# ``MPI_Fortran_MODULE_DIR``
-#   Location of the ``mpi`` or ``mpi_f08`` modules, if available.
-#
-# For all languages the following variables are additionally considered:
-#
-# ``MPI_<lang>_ADDITIONAL_INCLUDE_DIRS``
-#   A :ref:`;-list <CMake Language Lists>` of paths needed in addition to the normal include directories.
-# ``MPI_<include_name>_INCLUDE_DIR``
-#   Path variables for include folders referred to by ``<include_name>``.
-# ``MPI_<lang>_ADDITIONAL_INCLUDE_VARS``
-#   A :ref:`;-list <CMake Language Lists>` of ``<include_name>`` that will be added to the include locations of ``<lang>``.
-#
-# The variable ``MPI_<lang>_LIBRARIES`` will be assembled from the following variables:
-#
-# ``MPI_<lib_name>_LIBRARY``
-#   The location of a library called ``<lib_name>`` for use with MPI.
-# ``MPI_<lang>_LIB_NAMES``
-#   A :ref:`;-list <CMake Language Lists>` of ``<lib_name>`` that will be added to the include locations of ``<lang>``.
-#
-# Usage of mpiexec
-# ^^^^^^^^^^^^^^^^
-#
-# When using ``MPIEXEC_EXECUTABLE`` to execute MPI applications, you should typically
-# use all of the ``MPIEXEC_EXECUTABLE`` flags as follows:
-#
-# ::
-#
-#    ${MPIEXEC_EXECUTABLE} ${MPIEXEC_NUMPROC_FLAG} ${MPIEXEC_MAX_NUMPROCS}
-#      ${MPIEXEC_PREFLAGS} EXECUTABLE ${MPIEXEC_POSTFLAGS} ARGS
-#
-# where ``EXECUTABLE`` is the MPI program, and ``ARGS`` are the arguments to
-# pass to the MPI program.
-#
-# Advanced variables for using MPI
-# ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-#
-# The module can perform some advanced feature detections upon explicit request.
-#
-# **Important notice:** The following checks cannot be performed without *executing* an MPI test program.
-# Consider the special considerations for the behavior of :command:`try_run` during cross compilation.
-# Moreover, running an MPI program can cause additional issues, like a firewall notification on some systems.
-# You should only enable these detections if you absolutely need the information.
-#
-# If the following variables are set to true, the respective search will be performed:
-#
-# ``MPI_DETERMINE_Fortran_CAPABILITIES``
-#   Determine for all available Fortran bindings what the values of ``MPI_SUBARRAYS_SUPPORTED`` and
-#   ``MPI_ASYNC_PROTECTS_NONBLOCKING`` are and make their values available as ``MPI_Fortran_<binding>_SUBARRAYS``
-#   and ``MPI_Fortran_<binding>_ASYNCPROT``, where ``<binding>`` is one of ``F77_HEADER``, ``F90_MODULE`` and
-#   ``F08_MODULE``.
-# ``MPI_DETERMINE_LIBRARY_VERSION``
-#   For each language, find the output of ``MPI_Get_library_version`` and make it available as ``MPI_<lang>_LIBRARY_VERSION``.
-#   This information is usually tied to the runtime component of an MPI implementation and might differ depending on ``<lang>``.
-#   Note that the return value is entirely implementation defined. This information might be used to identify
-#   the MPI vendor and for example pick the correct one of multiple third party binaries that matches the MPI vendor.
-#
-# Backward Compatibility
-# ^^^^^^^^^^^^^^^^^^^^^^
-#
-# For backward compatibility with older versions of FindMPI, these
-# variables are set, but deprecated:
-#
-# ::
-#
-#    MPI_COMPILER        MPI_LIBRARY        MPI_EXTRA_LIBRARY
-#    MPI_COMPILE_FLAGS   MPI_INCLUDE_PATH   MPI_LINK_FLAGS
-#    MPI_LIBRARIES
-#
-# In new projects, please use the ``MPI_<lang>_XXX`` equivalents.
-# Additionally, the following variables are deprecated:
-#
-# ``MPI_<lang>_COMPILE_FLAGS``
-#   Use ``MPI_<lang>_COMPILE_OPTIONS`` and ``MPI_<lang>_COMPILE_DEFINITIONS`` instead.
-# ``MPI_<lang>_INCLUDE_PATH``
-#   For consumption use ``MPI_<lang>_INCLUDE_DIRS`` and for specifying folders use ``MPI_<lang>_ADDITIONAL_INCLUDE_DIRS`` instead.
-# ``MPIEXEC``
-#   Use ``MPIEXEC_EXECUTABLE`` instead.
-
-cmake_policy(PUSH)
-cmake_policy(SET CMP0057 NEW) # if IN_LIST
-
-# include this to handle the QUIETLY and REQUIRED arguments
-include(${CMAKE_ROOT}/Modules/FindPackageHandleStandardArgs.cmake)
-include(GetPrerequisites)
-
-# Generic compiler names
-set(_MPI_C_GENERIC_COMPILER_NAMES          mpicc    mpcc      mpicc_r mpcc_r)
-set(_MPI_CXX_GENERIC_COMPILER_NAMES        mpicxx   mpiCC     mpcxx   mpCC    mpic++   mpc++
-                                           mpicxx_r mpiCC_r   mpcxx_r mpCC_r  mpic++_r mpc++_r)
-set(_MPI_Fortran_GENERIC_COMPILER_NAMES    mpif95   mpif95_r  mpf95   mpf95_r
-                                           mpif90   mpif90_r  mpf90   mpf90_r
-                                           mpif77   mpif77_r  mpf77   mpf77_r
-                                           mpifc)
-
-# GNU compiler names
-set(_MPI_GNU_C_COMPILER_NAMES              mpigcc mpgcc mpigcc_r mpgcc_r)
-set(_MPI_GNU_CXX_COMPILER_NAMES            mpig++ mpg++ mpig++_r mpg++_r mpigxx)
-set(_MPI_GNU_Fortran_COMPILER_NAMES        mpigfortran mpgfortran mpigfortran_r mpgfortran_r
-                                           mpig77 mpig77_r mpg77 mpg77_r)
-
-# Intel MPI compiler names on Windows
-if(WIN32)
-  list(APPEND _MPI_C_GENERIC_COMPILER_NAMES       mpicc.bat)
-  list(APPEND _MPI_CXX_GENERIC_COMPILER_NAMES     mpicxx.bat)
-  list(APPEND _MPI_Fortran_GENERIC_COMPILER_NAMES mpifc.bat)
-
-  # Intel MPI compiler names
-  set(_MPI_Intel_C_COMPILER_NAMES            mpiicc.bat)
-  set(_MPI_Intel_CXX_COMPILER_NAMES          mpiicpc.bat)
-  set(_MPI_Intel_Fortran_COMPILER_NAMES      mpiifort.bat mpif77.bat mpif90.bat)
-
-  # Intel MPI compiler names for MSMPI
-  set(_MPI_MSVC_C_COMPILER_NAMES             mpicl.bat)
-  set(_MPI_MSVC_CXX_COMPILER_NAMES           mpicl.bat)
-else()
-  # Intel compiler names
-  set(_MPI_Intel_C_COMPILER_NAMES            mpiicc)
-  set(_MPI_Intel_CXX_COMPILER_NAMES          mpiicpc  mpiicxx mpiic++)
-  set(_MPI_Intel_Fortran_COMPILER_NAMES      mpiifort mpiif95 mpiif90 mpiif77)
-endif()
-
-# PGI compiler names
-set(_MPI_PGI_C_COMPILER_NAMES              mpipgcc mppgcc)
-set(_MPI_PGI_CXX_COMPILER_NAMES            mpipgCC mppgCC)
-set(_MPI_PGI_Fortran_COMPILER_NAMES        mpipgf95 mpipgf90 mppgf95 mppgf90 mpipgf77 mppgf77)
-
-# XLC MPI Compiler names
-set(_MPI_XL_C_COMPILER_NAMES               mpxlc      mpxlc_r    mpixlc     mpixlc_r)
-set(_MPI_XL_CXX_COMPILER_NAMES             mpixlcxx   mpixlC     mpixlc++   mpxlcxx   mpxlc++   mpixlc++   mpxlCC
-                                           mpixlcxx_r mpixlC_r   mpixlc++_r mpxlcxx_r mpxlc++_r mpixlc++_r mpxlCC_r)
-set(_MPI_XL_Fortran_COMPILER_NAMES         mpixlf95   mpixlf95_r mpxlf95 mpxlf95_r
-                                           mpixlf90   mpixlf90_r mpxlf90 mpxlf90_r
-                                           mpixlf77   mpixlf77_r mpxlf77 mpxlf77_r
-                                           mpixlf     mpixlf_r   mpxlf   mpxlf_r)
-
-# Prepend vendor-specific compiler wrappers to the list. If we don't know the compiler,
-# attempt all of them.
-# By attempting vendor-specific compiler names first, we should avoid situations where the compiler wrapper
-# stems from a proprietary MPI and won't know which compiler it's being used for. For instance, Intel MPI
-# controls its settings via the I_MPI_CC environment variables if the generic name is being used.
-# If we know which compiler we're working with, we can use the most specialized wrapper there is in order to
-# pick up the right settings for it.
-foreach (LANG IN ITEMS C CXX Fortran)
-  set(_MPI_${LANG}_COMPILER_NAMES "")
-  foreach (id IN ITEMS GNU Intel MSVC PGI XL)
-    if (NOT CMAKE_${LANG}_COMPILER_ID OR CMAKE_${LANG}_COMPILER_ID STREQUAL id)
-      list(APPEND _MPI_${LANG}_COMPILER_NAMES ${_MPI_${id}_${LANG}_COMPILER_NAMES}${MPI_EXECUTABLE_SUFFIX})
-    endif()
-    unset(_MPI_${id}_${LANG}_COMPILER_NAMES)
-  endforeach()
-  list(APPEND _MPI_${LANG}_COMPILER_NAMES ${_MPI_${LANG}_GENERIC_COMPILER_NAMES}${MPI_EXECUTABLE_SUFFIX})
-  unset(_MPI_${LANG}_GENERIC_COMPILER_NAMES)
-endforeach()
-
-# Names to try for mpiexec
-# Only mpiexec commands are guaranteed to behave as described in the standard,
-# mpirun commands are not covered by the standard in any way whatsoever.
-# lamexec is the executable for LAM/MPI, srun is for SLURM or Open MPI with SLURM support.
-# srun -n X <executable> is however a valid command, so it behaves 'like' mpiexec.
-set(_MPIEXEC_NAMES_BASE                   mpiexec mpiexec.hydra mpiexec.mpd mpirun lamexec srun)
-
-unset(_MPIEXEC_NAMES)
-foreach(_MPIEXEC_NAME IN LISTS _MPIEXEC_NAMES_BASE)
-  list(APPEND _MPIEXEC_NAMES "${_MPIEXEC_NAME}${MPI_EXECUTABLE_SUFFIX}")
-endforeach()
-unset(_MPIEXEC_NAMES_BASE)
-
-function (_MPI_check_compiler LANG QUERY_FLAG OUTPUT_VARIABLE RESULT_VARIABLE)
-  if(DEFINED MPI_${LANG}_COMPILER_FLAGS)
-    separate_arguments(_MPI_COMPILER_WRAPPER_OPTIONS NATIVE_COMMAND "${MPI_${LANG}_COMPILER_FLAGS}")
-  else()
-    separate_arguments(_MPI_COMPILER_WRAPPER_OPTIONS NATIVE_COMMAND "${MPI_COMPILER_FLAGS}")
-  endif()
-  execute_process(
-    COMMAND ${MPI_${LANG}_COMPILER} ${_MPI_COMPILER_WRAPPER_OPTIONS} ${QUERY_FLAG}
-    OUTPUT_VARIABLE  WRAPPER_OUTPUT OUTPUT_STRIP_TRAILING_WHITESPACE
-    ERROR_VARIABLE   WRAPPER_OUTPUT ERROR_STRIP_TRAILING_WHITESPACE
-    RESULT_VARIABLE  WRAPPER_RETURN)
-  # Some compiler wrappers will yield spurious zero return values, for example
-  # Intel MPI tolerates unknown arguments and if the MPI wrappers loads a shared
-  # library that has invalid or missing version information there would be warning
-  # messages emitted by ld.so in the compiler output. In either case, we'll treat
-  # the output as invalid.
-  if("${WRAPPER_OUTPUT}" MATCHES "undefined reference|unrecognized|need to set|no version information available")
-    set(WRAPPER_RETURN 255)
-  endif()
-  # Ensure that no error output might be passed upwards.
-  if(NOT WRAPPER_RETURN EQUAL 0)
-    unset(WRAPPER_OUTPUT)
-  endif()
-  set(${OUTPUT_VARIABLE} "${WRAPPER_OUTPUT}" PARENT_SCOPE)
-  set(${RESULT_VARIABLE} "${WRAPPER_RETURN}" PARENT_SCOPE)
-endfunction()
-
-function (_MPI_interrogate_compiler lang)
-  unset(MPI_COMPILE_CMDLINE)
-  unset(MPI_LINK_CMDLINE)
-
-  unset(MPI_COMPILE_OPTIONS_WORK)
-  unset(MPI_COMPILE_DEFINITIONS_WORK)
-  unset(MPI_INCLUDE_DIRS_WORK)
-  unset(MPI_LINK_FLAGS_WORK)
-  unset(MPI_LIB_NAMES_WORK)
-  unset(MPI_LIB_FULLPATHS_WORK)
-
-  # 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.
-  # Open MPI also supports -show, but separates linker and compiler information
-  _MPI_check_compiler(${LANG} "-showme:compile" MPI_COMPILE_CMDLINE MPI_COMPILER_RETURN)
-  if (MPI_COMPILER_RETURN EQUAL 0)
-    _MPI_check_compiler(${LANG} "-showme:link" MPI_LINK_CMDLINE MPI_COMPILER_RETURN)
-
-    if (NOT MPI_COMPILER_RETURN EQUAL 0)
-      unset(MPI_COMPILE_CMDLINE)
-    endif()
-  endif()
-
-  # MPICH and MVAPICH offer -compile-info and -link-info.
-  # For modern versions, both do the same as -show. However, for old versions, they do differ
-  # when called for mpicxx and mpif90 and it's necessary to use them over -show in order to find the
-  # removed MPI C++ bindings.
-  if (NOT MPI_COMPILER_RETURN EQUAL 0)
-    _MPI_check_compiler(${LANG} "-compile-info" MPI_COMPILE_CMDLINE MPI_COMPILER_RETURN)
-
-    if (MPI_COMPILER_RETURN EQUAL 0)
-      _MPI_check_compiler(${LANG} "-link-info" MPI_LINK_CMDLINE MPI_COMPILER_RETURN)
-
-      if (NOT MPI_COMPILER_RETURN EQUAL 0)
-        unset(MPI_COMPILE_CMDLINE)
-      endif()
-    endif()
-  endif()
-
-  # MPICH, MVAPICH2 and Intel MPI just use "-show". Open MPI also offers this, but the
-  # -showme commands are more specialized.
-  if (NOT MPI_COMPILER_RETURN EQUAL 0)
-    _MPI_check_compiler(${LANG} "-show" MPI_COMPILE_CMDLINE MPI_COMPILER_RETURN)
-  endif()
-
-  # Older versions of LAM/MPI have "-showme". Open MPI also supports this.
-  # Unknown to MPICH, MVAPICH and Intel MPI.
-  if (NOT MPI_COMPILER_RETURN EQUAL 0)
-    _MPI_check_compiler(${LANG} "-showme" MPI_COMPILE_CMDLINE MPI_COMPILER_RETURN)
-  endif()
-
-  if (NOT (MPI_COMPILER_RETURN EQUAL 0) OR NOT (DEFINED MPI_COMPILE_CMDLINE))
-    # Cannot interrogate this compiler, so exit.
-    set(MPI_${LANG}_WRAPPER_FOUND FALSE PARENT_SCOPE)
-    return()
-  endif()
-  unset(MPI_COMPILER_RETURN)
-
-  # We have our command lines, but we might need to copy MPI_COMPILE_CMDLINE
-  # into MPI_LINK_CMDLINE, if we didn't find the link line.
-  if (NOT DEFINED MPI_LINK_CMDLINE)
-    set(MPI_LINK_CMDLINE "${MPI_COMPILE_CMDLINE}")
-  endif()
-
-  # At this point, we obtained some output from a compiler wrapper that works.
-  # We'll now try to parse it into variables with meaning to us.
-  if("${LANG}" STREQUAL "Fortran")
-    # Some MPICH-1 and MVAPICH-1 versions return a three command answer for Fortran, consisting
-    # out of a symlink command for mpif.h, the actual compiler command and a deletion of the
-    # created symlink. We need to detect that case, remember the include path and drop the
-    # symlink/deletion operation to obtain the link/compile lines we'd usually expect.
-    if("${MPI_COMPILE_CMDLINE}" MATCHES "^ln -s ([^\" ]+|\"[^\"]+\") mpif.h")
-      get_filename_component(MPI_INCLUDE_DIRS_WORK "${CMAKE_MATCH_1}" DIRECTORY)
-      string(REGEX REPLACE "^ln -s ([^\" ]+|\"[^\"]+\") mpif.h\n" "" MPI_COMPILE_CMDLINE "${MPI_COMPILE_CMDLINE}")
-      string(REGEX REPLACE "^ln -s ([^\" ]+|\"[^\"]+\") mpif.h\n" "" MPI_LINK_CMDLINE "${MPI_LINK_CMDLINE}")
-      string(REGEX REPLACE "\nrm -f mpif.h$" "" MPI_COMPILE_CMDLINE "${MPI_COMPILE_CMDLINE}")
-      string(REGEX REPLACE "\nrm -f mpif.h$" "" MPI_LINK_CMDLINE "${MPI_LINK_CMDLINE}")
-    endif()
-  endif()
-
-  # The Intel MPI wrapper on Linux will emit some objcopy commands after its compile command
-  # if -static_mpi was passed to the wrapper. To avoid spurious matches, we need to drop these lines.
-  if(UNIX)
-    string(REGEX REPLACE "(^|\n)objcopy[^\n]+(\n|$)" "" MPI_COMPILE_CMDLINE "${MPI_COMPILE_CMDLINE}")
-    string(REGEX REPLACE "(^|\n)objcopy[^\n]+(\n|$)" "" MPI_LINK_CMDLINE "${MPI_LINK_CMDLINE}")
-  endif()
-
-  # Extract compile options from the compile command line.
-  string(REGEX MATCHALL "(^| )-f([^\" ]+|\"[^\"]+\")" MPI_ALL_COMPILE_OPTIONS "${MPI_COMPILE_CMDLINE}")
-
-  foreach(_MPI_COMPILE_OPTION IN LISTS MPI_ALL_COMPILE_OPTIONS)
-    string(REGEX REPLACE "^ " "" _MPI_COMPILE_OPTION "${_MPI_COMPILE_OPTION}")
-    # Ignore -fstack-protector directives: These occur on MPICH and MVAPICH when the libraries
-    # themselves were built with this flag. However, this flag is unrelated to using MPI, and
-    # we won't match the accompanying --param-ssp-size and -Wp,-D_FORTIFY_SOURCE flags and therefore
-    # produce inconsistent results with the regularly flags.
-    # Similarly, aliasing flags do not belong into our flag array.
-    if(NOT "${_MPI_COMPILE_OPTION}" MATCHES "^-f(stack-protector|(no-|)strict-aliasing|PI[CE]|pi[ce])")
-      list(APPEND MPI_COMPILE_OPTIONS_WORK "${_MPI_COMPILE_OPTION}")
-    endif()
-  endforeach()
-
-  # Same deal, with the definitions. We also treat arguments passed to the preprocessor directly.
-  string(REGEX MATCHALL "(^| )(-Wp,|-Xpreprocessor |)[-/]D([^\" ]+|\"[^\"]+\")" MPI_ALL_COMPILE_DEFINITIONS "${MPI_COMPILE_CMDLINE}")
-
-  foreach(_MPI_COMPILE_DEFINITION IN LISTS MPI_ALL_COMPILE_DEFINITIONS)
-    string(REGEX REPLACE "^ ?(-Wp,|-Xpreprocessor )?[-/]D" "" _MPI_COMPILE_DEFINITION "${_MPI_COMPILE_DEFINITION}")
-    string(REPLACE "\"" "" _MPI_COMPILE_DEFINITION "${_MPI_COMPILE_DEFINITION}")
-    if(NOT "${_MPI_COMPILE_DEFINITION}" MATCHES "^_FORTIFY_SOURCE.*")
-      list(APPEND MPI_COMPILE_DEFINITIONS_WORK "${_MPI_COMPILE_DEFINITION}")
-    endif()
-  endforeach()
-
-  # Extract include paths from compile command line
-  string(REGEX MATCHALL "(^| )[-/]I([^\" ]+|\"[^\"]+\")" MPI_ALL_INCLUDE_PATHS "${MPI_COMPILE_CMDLINE}")
-
-  # If extracting failed to work, we'll try using -showme:incdirs.
-  if (NOT MPI_ALL_INCLUDE_PATHS)
-    _MPI_check_compiler(${LANG} "-showme:incdirs" MPI_INCDIRS_CMDLINE MPI_INCDIRS_COMPILER_RETURN)
-    if(MPI_INCDIRS_COMPILER_RETURN)
-      separate_arguments(MPI_ALL_INCLUDE_PATHS NATIVE_COMMAND "${MPI_INCDIRS_CMDLINE}")
-    endif()
-  endif()
-
-  foreach(_MPI_INCLUDE_PATH IN LISTS MPI_ALL_INCLUDE_PATHS)
-    string(REGEX REPLACE "^ ?[-/]I" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
-    string(REPLACE "\"" "" _MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}")
-    get_filename_component(_MPI_INCLUDE_PATH "${_MPI_INCLUDE_PATH}" REALPATH)
-    list(APPEND MPI_INCLUDE_DIRS_WORK "${_MPI_INCLUDE_PATH}")
-  endforeach()
-
-  # Extract linker paths from the link command line
-  string(REGEX MATCHALL "(^| )(-Wl,|-Xlinker |)(-L|[/-]LIBPATH:|[/-]libpath:)([^\" ]+|\"[^\"]+\")" MPI_ALL_LINK_PATHS "${MPI_LINK_CMDLINE}")
-
-  # If extracting failed to work, we'll try using -showme:libdirs.
-  if (NOT MPI_ALL_LINK_PATHS)
-    _MPI_check_compiler(${LANG} "-showme:libdirs" MPI_LIBDIRS_CMDLINE MPI_LIBDIRS_COMPILER_RETURN)
-    if(MPI_LIBDIRS_COMPILER_RETURN)
-      separate_arguments(MPI_ALL_LINK_PATHS NATIVE_COMMAND "${MPI_LIBDIRS_CMDLINE}")
-    endif()
-  endif()
-
-  foreach(_MPI_LPATH IN LISTS MPI_ALL_LINK_PATHS)
-    string(REGEX REPLACE "^ ?(-Wl,|-Xlinker )?(-L|[/-]LIBPATH:|[/-]libpath:)" "" _MPI_LPATH "${_MPI_LPATH}")
-    string(REPLACE "\"" "" _MPI_LPATH "${_MPI_LPATH}")
-    get_filename_component(_MPI_LPATH "${_MPI_LPATH}" REALPATH)
-    list(APPEND MPI_LINK_DIRECTORIES_WORK "${_MPI_LPATH}")
-  endforeach()
-
-  # Extract linker flags from the link command line
-  string(REGEX MATCHALL "(^| )(-Wl,|-Xlinker )([^\" ]+|\"[^\"]+\")" MPI_ALL_LINK_FLAGS "${MPI_LINK_CMDLINE}")
-
-  foreach(_MPI_LINK_FLAG IN LISTS MPI_ALL_LINK_FLAGS)
-    string(STRIP "${_MPI_LINK_FLAG}" _MPI_LINK_FLAG)
-    # MPI might be marked to build with non-executable stacks but this should not propagate.
-    if (NOT "${_MPI_LINK_FLAG}" MATCHES "(-Wl,|-Xlinker )-z,noexecstack")
-      if (MPI_LINK_FLAGS_WORK)
-        string(APPEND MPI_LINK_FLAGS_WORK " ${_MPI_LINK_FLAG}")
-      else()
-        set(MPI_LINK_FLAGS_WORK "${_MPI_LINK_FLAG}")
-      endif()
-    endif()
-  endforeach()
-
-  # Extract the set of libraries to link against from the link command
-  # line
-  string(REGEX MATCHALL "(^| )-l([^\" ]+|\"[^\"]+\")" MPI_LIBNAMES "${MPI_LINK_CMDLINE}")
-
-  foreach(_MPI_LIB_NAME IN LISTS MPI_LIBNAMES)
-    string(REGEX REPLACE "^ ?-l" "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-    string(REPLACE "\"" "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-    get_filename_component(_MPI_LIB_PATH "${_MPI_LIB_NAME}" DIRECTORY)
-    if(NOT "${_MPI_LIB_PATH}" STREQUAL "")
-      list(APPEND MPI_LIB_FULLPATHS_WORK "${_MPI_LIB_NAME}")
-    else()
-      list(APPEND MPI_LIB_NAMES_WORK "${_MPI_LIB_NAME}")
-    endif()
-  endforeach()
-
-  if(WIN32)
-    # A compiler wrapper on Windows will just have the name of the
-    # library to link on its link line, potentially with a full path
-    string(REGEX MATCHALL "(^| )([^\" ]+\\.lib|\"[^\"]+\\.lib\")" MPI_LIBNAMES "${MPI_LINK_CMDLINE}")
-    foreach(_MPI_LIB_NAME IN LISTS MPI_LIBNAMES)
-      string(REGEX REPLACE "^ " "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-      string(REPLACE "\"" "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-      get_filename_component(_MPI_LIB_PATH "${_MPI_LIB_NAME}" DIRECTORY)
-      if(NOT "${_MPI_LIB_PATH}" STREQUAL "")
-        list(APPEND MPI_LIB_FULLPATHS_WORK "${_MPI_LIB_NAME}")
-      else()
-        list(APPEND MPI_LIB_NAMES_WORK "${_MPI_LIB_NAME}")
-      endif()
-    endforeach()
-  else()
-    # On UNIX platforms, archive libraries can be given with full path.
-    string(REGEX MATCHALL "(^| )([^\" ]+\\.a|\"[^\"]+\\.a\")" MPI_LIBFULLPATHS "${MPI_LINK_CMDLINE}")
-    foreach(_MPI_LIB_NAME IN LISTS MPI_LIBFULLPATHS)
-      string(REGEX REPLACE "^ " "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-      string(REPLACE "\"" "" _MPI_LIB_NAME "${_MPI_LIB_NAME}")
-      get_filename_component(_MPI_LIB_PATH "${_MPI_LIB_NAME}" DIRECTORY)
-      if(NOT "${_MPI_LIB_PATH}" STREQUAL "")
-        list(APPEND MPI_LIB_FULLPATHS_WORK "${_MPI_LIB_NAME}")
-      else()
-        list(APPEND MPI_LIB_NAMES_WORK "${_MPI_LIB_NAME}")
-      endif()
-    endforeach()
-  endif()
-
-  # An MPI compiler wrapper could have its MPI libraries in the implictly
-  # linked directories of the compiler itself.
-  if(DEFINED CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES)
-    list(APPEND MPI_LINK_DIRECTORIES_WORK "${CMAKE_${LANG}_IMPLICIT_LINK_DIRECTORIES}")
-  endif()
-
-  # Determine full path names for all of the libraries that one needs
-  # to link against in an MPI program
-  unset(MPI_PLAIN_LIB_NAMES_WORK)
-  foreach(_MPI_LIB_NAME IN LISTS MPI_LIB_NAMES_WORK)
-    get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB_NAME}" NAME_WE)
-    list(APPEND MPI_PLAIN_LIB_NAMES_WORK "${_MPI_PLAIN_LIB_NAME}")
-    find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
-      NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
-      HINTS ${MPI_LINK_DIRECTORIES_WORK}
-      DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
-    )
-    mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
-  endforeach()
-
-  # Deal with the libraries given with full path next
-  unset(MPI_DIRECT_LIB_NAMES_WORK)
-  foreach(_MPI_LIB_FULLPATH IN LISTS MPI_LIB_FULLPATHS_WORK)
-    get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB_FULLPATH}" NAME_WE)
-    get_filename_component(_MPI_LIB_NAME "${_MPI_LIB_FULLPATH}" NAME)
-    get_filename_component(_MPI_LIB_PATH "${_MPI_LIB_FULLPATH}" DIRECTORY)
-    list(APPEND MPI_DIRECT_LIB_NAMES_WORK "${_MPI_PLAIN_LIB_NAME}")
-    find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
-      NAMES "${_MPI_LIB_NAME}"
-      HINTS ${_MPI_LIB_PATH}
-      DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
-    )
-    mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
-  endforeach()
-  if(MPI_DIRECT_LIB_NAMES_WORK)
-    set(MPI_PLAIN_LIB_NAMES_WORK "${MPI_DIRECT_LIB_NAMES_WORK};${MPI_PLAIN_LIB_NAMES_WORK}")
-  endif()
-
-  # MPI might require pthread to work. The above mechanism wouldn't detect it, but we need to
-  # link it in that case. -lpthread is covered by the normal library treatment on the other hand.
-  if("${MPI_COMPILE_CMDLINE}" MATCHES "-pthread")
-    list(APPEND MPI_COMPILE_OPTIONS_WORK "-pthread")
-    if(MPI_LINK_FLAGS_WORK)
-      string(APPEND MPI_LINK_FLAGS_WORK " -pthread")
-    else()
-      set(MPI_LINK_FLAGS_WORK "-pthread")
-    endif()
-  endif()
-
-  # If we found MPI, set up all of the appropriate cache entries
-  if(NOT MPI_${LANG}_COMPILE_OPTIONS)
-    set(MPI_${LANG}_COMPILE_OPTIONS          ${MPI_COMPILE_OPTIONS_WORK}     CACHE STRING "MPI ${LANG} compilation options"            FORCE)
-  endif()
-  if(NOT MPI_${LANG}_COMPILE_DEFINITIONS)
-    set(MPI_${LANG}_COMPILE_DEFINITIONS      ${MPI_COMPILE_DEFINITIONS_WORK} CACHE STRING "MPI ${LANG} compilation definitions"        FORCE)
-  endif()
-  if(NOT MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
-    set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS  ${MPI_INCLUDE_DIRS_WORK}        CACHE STRING "MPI ${LANG} additional include directories" FORCE)
-  endif()
-  if(NOT MPI_${LANG}_LINK_FLAGS)
-    set(MPI_${LANG}_LINK_FLAGS               ${MPI_LINK_FLAGS_WORK}          CACHE STRING "MPI ${LANG} linker flags"                   FORCE)
-  endif()
-  if(NOT MPI_${LANG}_LIB_NAMES)
-    set(MPI_${LANG}_LIB_NAMES                ${MPI_PLAIN_LIB_NAMES_WORK}     CACHE STRING "MPI ${LANG} libraries to link against"      FORCE)
-  endif()
-  set(MPI_${LANG}_WRAPPER_FOUND TRUE PARENT_SCOPE)
-endfunction()
-
-function(_MPI_guess_settings LANG)
-  set(MPI_GUESS_FOUND FALSE)
-  # Currently only MSMPI and MPICH2 on Windows are supported, so we can skip this search if we're not targeting that.
-  if(WIN32)
-    # MSMPI
-
-    # The environment variables MSMPI_INC and MSMPILIB32/64 are the only ways of locating the MSMPI_SDK,
-    # which is installed separately from the runtime. Thus it's possible to have mpiexec but not MPI headers
-    # or import libraries and vice versa.
-    if(NOT MPI_GUESS_LIBRARY_NAME OR "${MPI_GUESS_LIBRARY_NAME}" STREQUAL "MSMPI")
-      # We first attempt to locate the msmpi.lib. Should be find it, we'll assume that the MPI present is indeed
-      # Microsoft MPI.
-      if("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
-        set(MPI_MSMPI_LIB_PATH "$ENV{MSMPI_LIB64}")
-        set(MPI_MSMPI_INC_PATH_EXTRA "$ENV{MSMPI_INC}/x64")
-      else()
-        set(MPI_MSMPI_LIB_PATH "$ENV{MSMPI_LIB32}")
-        set(MPI_MSMPI_INC_PATH_EXTRA "$ENV{MSMPI_INC}/x86")
-      endif()
-
-      find_library(MPI_msmpi_LIBRARY
-        NAMES msmpi
-        HINTS ${MPI_MSMPI_LIB_PATH}
-        DOC "Location of the msmpi library for Microsoft MPI")
-      mark_as_advanced(MPI_msmpi_LIBRARY)
-
-      if(MPI_msmpi_LIBRARY)
-        # Next, we attempt to locate the MPI header. Note that for Fortran we know that mpif.h is a way
-        # MSMPI can be used and therefore that header has to be present.
-        if(NOT MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
-          get_filename_component(MPI_MSMPI_INC_DIR "$ENV{MSMPI_INC}" REALPATH)
-          set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "${MPI_MSMPI_INC_DIR}" CACHE STRING "MPI ${LANG} additional include directories" FORCE)
-          unset(MPI_MSMPI_INC_DIR)
-        endif()
-
-        # For MSMPI, one can compile the MPI module by building the mpi.f90 shipped with the MSMPI SDK,
-        # thus it might be present or provided by the user. Figuring out which is supported is done later on.
-        # The PGI Fortran compiler for instance ships a prebuilt set of modules in its own include folder.
-        # Should a user be employing PGI or have built its own set and provided it via cache variables, the
-        # splitting routine would have located the module files.
-
-        # For C and C++, we're done here (MSMPI does not ship the MPI-2 C++ bindings) - however, for Fortran
-        # we need some extra library to glue Fortran support together:
-        # MSMPI ships 2-4 Fortran libraries, each for different Fortran compiler behaviors. The library names
-        # ending with a c are using the cdecl calling convention, whereas those ending with an s are for Fortran
-        # implementations using stdcall. Therefore, the 64-bit MSMPI only ships those ending in 'c', whereas the 32-bit
-        # has both variants available.
-        # The second difference is the last but one letter, if it's an e(nd), the length of a string argument is
-        # passed by the Fortran compiler after all other arguments on the parameter list, if it's an m(ixed),
-        # it's passed immediately after the string address.
-
-        # To summarize:
-        #   - msmpifec: CHARACTER length passed after the parameter list and using cdecl calling convention
-        #   - msmpifmc: CHARACTER length passed directly after string address and using cdecl calling convention
-        #   - msmpifes: CHARACTER length passed after the parameter list and using stdcall calling convention
-        #   - msmpifms: CHARACTER length passed directly after string address and using stdcall calling convention
-        # 32-bit MSMPI ships all four libraries, 64-bit MSMPI ships only the first two.
-
-        # As is, Intel Fortran and PGI Fortran both use the 'ec' variant of the calling convention, whereas
-        # the old Compaq Visual Fortran compiler defaulted to the 'ms' version. It's possible to make Intel Fortran
-        # use the CVF calling convention using /iface:cvf, but we assume - and this is also assumed in FortranCInterface -
-        # this isn't the case. It's also possible to make CVF use the 'ec' variant, using /iface=(cref,nomixed_str_len_arg).
-
-        # Our strategy is now to locate all libraries, but enter msmpifec into the LIB_NAMES array.
-        # Should this not be adequate it's a straightforward way for a user to change the LIB_NAMES array and
-        # have his library found. Still, this should not be necessary outside of exceptional cases, as reasoned.
-        if ("${LANG}" STREQUAL "Fortran")
-          set(MPI_MSMPI_CALLINGCONVS c)
-          if("${CMAKE_SIZEOF_VOID_P}" EQUAL 4)
-            list(APPEND MPI_MSMPI_CALLINGCONVS s)
-          endif()
-          foreach(mpistrlenpos IN ITEMS e m)
-            foreach(mpicallingconv IN LISTS MPI_MSMPI_CALLINGCONVS)
-              find_library(MPI_msmpif${mpistrlenpos}${mpicallingconv}_LIBRARY
-                NAMES msmpif${mpistrlenpos}${mpicallingconv}
-                HINTS "${MPI_MSMPI_LIB_PATH}"
-                DOC "Location of the msmpi${mpistrlenpos}${mpicallingconv} library for Microsoft MPI")
-              mark_as_advanced(MPI_msmpif${mpistrlenpos}${mpicallingconv}_LIBRARY)
-            endforeach()
-          endforeach()
-          if(NOT MPI_${LANG}_LIB_NAMES)
-            set(MPI_${LANG}_LIB_NAMES "msmpi;msmpifec" CACHE STRING "MPI ${LANG} libraries to link against" FORCE)
-          endif()
-
-          # At this point we're *not* done. MSMPI requires an additional include file for Fortran giving the value
-          # of MPI_AINT. This file is called mpifptr.h located in the x64 and x86 subfolders, respectively.
-          find_path(MPI_mpifptr_INCLUDE_DIR
-            NAMES "mpifptr.h"
-            HINTS "${MPI_MSMPI_INC_PATH_EXTRA}"
-            DOC "Location of the mpifptr.h extra header for Microsoft MPI")
-          if(NOT MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
-            set(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS "mpifptr" CACHE STRING "MPI ${LANG} additional include directory variables, given in the form MPI_<name>_INCLUDE_DIR." FORCE)
-          endif()
-          mark_as_advanced(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS MPI_mpifptr_INCLUDE_DIR)
-        else()
-          if(NOT MPI_${LANG}_LIB_NAMES)
-            set(MPI_${LANG}_LIB_NAMES "msmpi" CACHE STRING "MPI ${LANG} libraries to link against" FORCE)
-          endif()
-        endif()
-        mark_as_advanced(MPI_${LANG}_LIB_NAMES)
-        set(MPI_GUESS_FOUND TRUE)
-      endif()
-    endif()
-
-    # At this point there's not many MPIs that we could still consider.
-    # OpenMPI 1.6.x and below supported Windows, but these ship compiler wrappers that still work.
-    # The only other relevant MPI implementation without a wrapper is MPICH2, which had Windows support in 1.4.1p1 and older.
-    if(NOT MPI_GUESS_LIBRARY_NAME OR "${MPI_GUESS_LIBRARY_NAME}" STREQUAL "MPICH2")
-      set(MPI_MPICH_PREFIX_PATHS
-        "$ENV{ProgramW6432}/MPICH2/lib"
-        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MPICH\\SMPD;binary]/../lib"
-        "[HKEY_LOCAL_MACHINE\\SOFTWARE\\MPICH2;Path]/lib"
-      )
-
-      # All of C, C++ and Fortran will need mpi.lib, so we'll look for this first
-      find_library(MPI_mpi_LIBRARY
-        NAMES mpi
-        HINTS ${MPI_MPICH_PREFIX_PATHS})
-      mark_as_advanced(MPI_mpi_LIBRARY)
-      # If we found mpi.lib, we detect the rest of MPICH2
-      if(MPI_mpi_LIBRARY)
-        set(MPI_MPICH_LIB_NAMES "mpi")
-        # If MPI-2 C++ bindings are requested, we need to locate cxx.lib as well.
-        # Otherwise, MPICH_SKIP_MPICXX will be defined and these bindings aren't needed.
-        if("${LANG}" STREQUAL "CXX" AND NOT MPI_CXX_SKIP_MPICXX)
-          find_library(MPI_cxx_LIBRARY
-            NAMES cxx
-            HINTS ${MPI_MPICH_PREFIX_PATHS})
-          mark_as_advanced(MPI_cxx_LIBRARY)
-          list(APPEND MPI_MPICH_LIB_NAMES "cxx")
-        # For Fortran, MPICH2 provides three different libraries:
-        #   fmpich2.lib which uses uppercase symbols and cdecl,
-        #   fmpich2s.lib which uses uppercase symbols and stdcall (32-bit only),
-        #   fmpich2g.lib which uses lowercase symbols with double underscores and cdecl.
-        # fmpich2s.lib would be useful for Compaq Visual Fortran, fmpich2g.lib has to be used with GNU g77 and is also
-        # provided in the form of an .a archive for MinGW and Cygwin. From our perspective, fmpich2.lib is the only one
-        # we need to try, and if it doesn't work with the given Fortran compiler we'd find out later on during validation
-        elseif("${LANG}" STREQUAL "Fortran")
-          find_library(MPI_fmpich2_LIBRARY
-            NAMES fmpich2
-            HINTS ${MPI_MPICH_PREFIX_PATHS})
-          find_library(MPI_fmpich2s_LIBRARY
-            NAMES fmpich2s
-            HINTS ${MPI_MPICH_PREFIX_PATHS})
-          find_library(MPI_fmpich2g_LIBRARY
-            NAMES fmpich2g
-            HINTS ${MPI_MPICH_PREFIX_PATHS})
-          mark_as_advanced(MPI_fmpich2_LIBRARY MPI_fmpich2s_LIBRARY MPI_fmpich2g_LIBRARY)
-          list(APPEND MPI_MPICH_LIB_NAMES "fmpich2")
-        endif()
-
-        if(NOT MPI_${LANG}_LIB_NAMES)
-          set(MPI_${LANG}_LIB_NAMES "${MPI_MPICH_LIB_NAMES}" CACHE STRING "MPI ${LANG} libraries to link against" FORCE)
-        endif()
-        unset(MPI_MPICH_LIB_NAMES)
-
-        if(NOT MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
-          # For MPICH2, the include folder would be in ../include relative to the library folder.
-          get_filename_component(MPI_MPICH_ROOT_DIR "${MPI_mpi_LIBRARY}" DIRECTORY)
-          get_filename_component(MPI_MPICH_ROOT_DIR "${MPI_MPICH_ROOT_DIR}" DIRECTORY)
-          if(IS_DIRECTORY "${MPI_MPICH_ROOT_DIR}/include")
-            set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "${MPI_MPICH_ROOT_DIR}/include" CACHE STRING "MPI ${LANG} additional include directory variables, given in the form MPI_<name>_INCLUDE_DIR." FORCE)
-          endif()
-          unset(MPI_MPICH_ROOT_DIR)
-        endif()
-        set(MPI_GUESS_FOUND TRUE)
-      endif()
-      unset(MPI_MPICH_PREFIX_PATHS)
-    endif()
-  endif()
-  set(MPI_${LANG}_GUESS_FOUND "${MPI_GUESS_FOUND}" PARENT_SCOPE)
-endfunction()
-
-function(_MPI_adjust_compile_definitions LANG)
-  if("${LANG}" STREQUAL "CXX")
-    # To disable the C++ bindings, we need to pass some definitions since the mpi.h header has to deal with both C and C++
-    # bindings in MPI-2.
-    if(MPI_CXX_SKIP_MPICXX AND NOT MPI_${LANG}_COMPILE_DEFINITIONS MATCHES "SKIP_MPICXX")
-      # MPICH_SKIP_MPICXX is being used in MPICH and derivatives like MVAPICH or Intel MPI
-      # OMPI_SKIP_MPICXX is being used in Open MPI
-      # _MPICC_H is being used for IBM Platform MPI
-      list(APPEND MPI_${LANG}_COMPILE_DEFINITIONS "MPICH_SKIP_MPICXX" "OMPI_SKIP_MPICXX" "_MPICC_H")
-      set(MPI_${LANG}_COMPILE_DEFINITIONS "${MPI_${LANG}_COMPILE_DEFINITIONS}" CACHE STRING "MPI ${LANG} compilation definitions" FORCE)
-    endif()
-  endif()
-endfunction()
-
-macro(_MPI_assemble_libraries LANG)
-  set(MPI_${LANG}_LIBRARIES "")
-  foreach(mpilib IN LISTS MPI_${LANG}_LIB_NAMES)
-    list(APPEND MPI_${LANG}_LIBRARIES ${MPI_${mpilib}_LIBRARY})
-  endforeach()
-endmacro()
-
-macro(_MPI_assemble_include_dirs LANG)
-  set(MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}")
-  if("${LANG}" MATCHES "(C|CXX)")
-    if(MPI_${LANG}_HEADER_DIR)
-      list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_HEADER_DIR}")
-    endif()
-  else() # Fortran
-    if(MPI_${LANG}_F77_HEADER_DIR)
-      list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_F77_HEADER_DIR}")
-    endif()
-    if(MPI_${LANG}_MODULE_DIR AND NOT "${MPI_${LANG}_MODULE_DIR}" IN_LIST MPI_${LANG}_INCLUDE_DIRS)
-      list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${LANG}_MODULE_DIR}")
-    endif()
-  endif()
-  if(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
-    foreach(mpiadditionalinclude IN LISTS MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
-      list(APPEND MPI_${LANG}_INCLUDE_DIRS "${MPI_${mpiadditionalinclude}_INCLUDE_DIR}")
-    endforeach()
-  endif()
-endmacro()
-
-function(_MPI_split_include_dirs LANG)
-  # Backwards compatibility: Search INCLUDE_PATH if given.
-  if(MPI_${LANG}_INCLUDE_PATH)
-    list(APPEND MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "${MPI_${LANG}_INCLUDE_PATH}")
-  endif()
-
-  # We try to find the headers/modules among those paths (and system paths)
-  # For C/C++, we just need to have a look for mpi.h.
-  if("${LANG}" MATCHES "(C|CXX)")
-    find_path(MPI_${LANG}_HEADER_DIR "mpi.h"
-      HINTS ${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}
-    )
-    mark_as_advanced(MPI_${LANG}_HEADER_DIR)
-    if(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
-      list(REMOVE_ITEM MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS "${MPI_${LANG}_HEADER_DIR}")
-    endif()
-  # Fortran is more complicated here: An implementation could provide
-  # any of the Fortran 77/90/2008 APIs for MPI. For example, MSMPI
-  # only provides Fortran 77 and - if mpi.f90 is built - potentially
-  # a Fortran 90 module.
-  elseif("${LANG}" STREQUAL "Fortran")
-    find_path(MPI_${LANG}_F77_HEADER_DIR "mpif.h"
-      HINTS ${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}
-    )
-    find_path(MPI_${LANG}_MODULE_DIR
-      NAMES "mpi.mod" "mpi_f08.mod"
-      HINTS ${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS}
-    )
-    if(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)
-      list(REMOVE_ITEM MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS
-        "${MPI_${LANG}_F77_HEADER_DIR}"
-        "${MPI_${LANG}_MODULE_DIR}"
-      )
-    endif()
-    mark_as_advanced(MPI_${LANG}_F77_HEADER_DIR MPI_${LANG}_MODULE_DIR)
-  endif()
-  set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS ${MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS} CACHE STRING "MPI ${LANG} additional include directories" FORCE)
-endfunction()
-
-macro(_MPI_create_imported_target LANG)
-  if(NOT TARGET MPI::MPI_${LANG})
-    add_library(MPI::MPI_${LANG} INTERFACE IMPORTED)
-  endif()
-
-  set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_COMPILE_OPTIONS "${MPI_${LANG}_COMPILE_OPTIONS}")
-  set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_COMPILE_DEFINITIONS "${MPI_${LANG}_COMPILE_DEFINITIONS}")
-
-  set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_LINK_LIBRARIES "")
-  if(MPI_${LANG}_LINK_FLAGS)
-    set_property(TARGET MPI::MPI_${LANG} APPEND PROPERTY INTERFACE_LINK_LIBRARIES "${MPI_${LANG}_LINK_FLAGS}")
-  endif()
-  # If the compiler links MPI implicitly, no libraries will be found as they're contained within
-  # CMAKE_<LANG>_IMPLICIT_LINK_LIBRARIES already.
-  if(MPI_${LANG}_LIBRARIES)
-    set_property(TARGET MPI::MPI_${LANG} APPEND PROPERTY INTERFACE_LINK_LIBRARIES "${MPI_${LANG}_LIBRARIES}")
-  endif()
-  # Given the new design of FindMPI, INCLUDE_DIRS will always be located, even under implicit linking.
-  set_property(TARGET MPI::MPI_${LANG} PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${MPI_${LANG}_INCLUDE_DIRS}")
-endmacro()
-
-function(_MPI_try_staged_settings LANG MPI_TEST_FILE_NAME MODE RUN_BINARY)
-  set(WORK_DIR "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindMPI")
-  set(SRC_DIR "${CMAKE_ROOT}/Modules/FindMPI")
-  set(BIN_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindMPI/${MPI_TEST_FILE_NAME}_${LANG}.bin")
-  unset(MPI_TEST_COMPILE_DEFINITIONS)
-  if("${LANG}" STREQUAL "Fortran")
-    if("${MODE}" STREQUAL "F90_MODULE")
-      set(MPI_Fortran_INCLUDE_LINE "use mpi\n      implicit none")
-    elseif("${MODE}" STREQUAL "F08_MODULE")
-      set(MPI_Fortran_INCLUDE_LINE "use mpi_f08\n      implicit none")
-    else() # F77 header
-      set(MPI_Fortran_INCLUDE_LINE "implicit none\n      include 'mpif.h'")
-    endif()
-    configure_file("${SRC_DIR}/${MPI_TEST_FILE_NAME}.f90.in" "${WORK_DIR}/${MPI_TEST_FILE_NAME}.f90" @ONLY)
-    set(MPI_TEST_SOURCE_FILE "${WORK_DIR}/${MPI_TEST_FILE_NAME}.f90")
-  elseif("${LANG}" STREQUAL "CXX")
-    configure_file("${SRC_DIR}/${MPI_TEST_FILE_NAME}.c" "${WORK_DIR}/${MPI_TEST_FILE_NAME}.cpp" COPYONLY)
-    set(MPI_TEST_SOURCE_FILE "${WORK_DIR}/${MPI_TEST_FILE_NAME}.cpp")
-    if("${MODE}" STREQUAL "TEST_MPICXX")
-      set(MPI_TEST_COMPILE_DEFINITIONS TEST_MPI_MPICXX)
-    endif()
-  else() # C
-    set(MPI_TEST_SOURCE_FILE "${SRC_DIR}/${MPI_TEST_FILE_NAME}.c")
-  endif()
-  if(RUN_BINARY)
-    try_run(MPI_RUN_RESULT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE} MPI_RESULT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE}
-     "${CMAKE_BINARY_DIR}" SOURCES "${MPI_TEST_SOURCE_FILE}"
-      COMPILE_DEFINITIONS ${MPI_TEST_COMPILE_DEFINITIONS}
-      LINK_LIBRARIES MPI::MPI_${LANG}
-      RUN_OUTPUT_VARIABLE MPI_RUN_OUTPUT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE})
-    set(MPI_RUN_OUTPUT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE} "${MPI_RUN_OUTPUT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE}}" PARENT_SCOPE)
-  else()
-    try_compile(MPI_RESULT_${LANG}_${MPI_TEST_FILE_NAME}_${MODE}
-      "${CMAKE_BINARY_DIR}" SOURCES "${MPI_TEST_SOURCE_FILE}"
-      COMPILE_DEFINITIONS ${MPI_TEST_COMPILE_DEFINITIONS}
-      LINK_LIBRARIES MPI::MPI_${LANG}
-      COPY_FILE "${BIN_FILE}")
-  endif()
-endfunction()
-
-macro(_MPI_check_lang_works LANG)
-  # For Fortran we may have by the MPI-3 standard an implementation that provides:
-  #   - the mpi_f08 module
-  #   - *both*, the mpi module and 'mpif.h'
-  # Since older MPI standards (MPI-1) did not define anything but 'mpif.h', we need to check all three individually.
-  if( NOT MPI_${LANG}_WORKS )
-    if("${LANG}" STREQUAL "Fortran")
-      set(MPI_Fortran_INTEGER_LINE "(kind=MPI_INTEGER_KIND)")
-      _MPI_try_staged_settings(${LANG} test_mpi F77_HEADER FALSE)
-      _MPI_try_staged_settings(${LANG} test_mpi F90_MODULE FALSE)
-      _MPI_try_staged_settings(${LANG} test_mpi F08_MODULE FALSE)
-
-      set(MPI_${LANG}_WORKS FALSE)
-
-      foreach(mpimethod IN ITEMS F77_HEADER F08_MODULE F90_MODULE)
-        if(MPI_RESULT_${LANG}_test_mpi_${mpimethod})
-          set(MPI_${LANG}_WORKS TRUE)
-          set(MPI_${LANG}_HAVE_${mpimethod} TRUE)
-        else()
-          set(MPI_${LANG}_HAVE_${mpimethod} FALSE)
-        endif()
-      endforeach()
-      # MPI-1 versions had no MPI_INTGER_KIND defined, so we need to try without it.
-      # However, MPI-1 also did not define the Fortran 90 and 08 modules, so we only try the F77 header.
-      unset(MPI_Fortran_INTEGER_LINE)
-      if(NOT MPI_${LANG}_WORKS)
-        _MPI_try_staged_settings(${LANG} test_mpi F77_HEADER_NOKIND FALSE)
-        if(MPI_RESULT_${LANG}_test_mpi_F77_HEADER_NOKIND)
-          set(MPI_${LANG}_WORKS TRUE)
-          set(MPI_${LANG}_HAVE_F77_HEADER TRUE)
-        endif()
-      endif()
-    else()
-      _MPI_try_staged_settings(${LANG} test_mpi normal FALSE)
-      # If 'test_mpi' built correctly, we've found valid MPI settings. There might not be MPI-2 C++ support, but there can't
-      # be MPI-2 C++ support without the C bindings being present, so checking for them is sufficient.
-      set(MPI_${LANG}_WORKS "${MPI_RESULT_${LANG}_test_mpi_normal}")
-    endif()
-  endif()
-endmacro()
-
-# Some systems install various MPI implementations in separate folders in some MPI prefix
-# This macro enumerates all such subfolders and adds them to the list of hints that will be searched.
-macro(MPI_search_mpi_prefix_folder PREFIX_FOLDER)
-  if(EXISTS "${PREFIX_FOLDER}")
-    file(GLOB _MPI_folder_children RELATIVE "${PREFIX_FOLDER}" "${PREFIX_FOLDER}/*")
-    foreach(_MPI_folder_child IN LISTS _MPI_folder_children)
-      if(IS_DIRECTORY "${PREFIX_FOLDER}/${_MPI_folder_child}")
-        list(APPEND MPI_HINT_DIRS "${PREFIX_FOLDER}/${_MPI_folder_child}")
-      endif()
-    endforeach()
-  endif()
-endmacro()
-
-set(MPI_HINT_DIRS ${MPI_HOME} $ENV{MPI_HOME} $ENV{I_MPI_ROOT})
-if("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux")
-  # SUSE Linux Enterprise Server stores its MPI implementations under /usr/lib64/mpi/gcc/<name>
-  # We enumerate the subfolders and append each as a prefix
-  MPI_search_mpi_prefix_folder("/usr/lib64/mpi/gcc")
-elseif("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Windows")
-  # MSMPI stores its runtime in a special folder, this adds the possible locations to the hints.
-  list(APPEND MPI_HINT_DIRS $ENV{MSMPI_BIN} "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\MPI;InstallRoot]")
-elseif("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "FreeBSD")
-  # FreeBSD ships mpich under the normal system paths - but available openmpi implementations
-  # will be found in /usr/local/mpi/<name>
-  MPI_search_mpi_prefix_folder("/usr/local/mpi/")
-endif()
-
-# Most MPI distributions have some form of mpiexec or mpirun which gives us something we can look for.
-# The MPI standard does not mandate the existence of either, but instead only makes requirements if a distribution
-# ships an mpiexec program (mpirun executables are not regulated by the standard).
-find_program(MPIEXEC_EXECUTABLE
-  NAMES ${_MPIEXEC_NAMES}
-  PATH_SUFFIXES bin sbin
-  HINTS ${MPI_HINT_DIRS}
-  DOC "Executable for running MPI programs.")
-
-# call get_filename_component twice to remove mpiexec and the directory it exists in (typically bin).
-# This gives us a fairly reliable base directory to search for /bin /lib and /include from.
-get_filename_component(_MPI_BASE_DIR "${MPIEXEC_EXECUTABLE}" PATH)
-get_filename_component(_MPI_BASE_DIR "${_MPI_BASE_DIR}" PATH)
-
-# According to the MPI standard, section 8.8 -n is a guaranteed, and the only guaranteed way to
-# launch an MPI process using mpiexec if such a program exists.
-set(MPIEXEC_NUMPROC_FLAG "-n"  CACHE STRING "Flag used by MPI to specify the number of processes for mpiexec; the next option will be the number of processes.")
-set(MPIEXEC_PREFLAGS     ""    CACHE STRING "These flags will be directly before the executable that is being run by mpiexec.")
-set(MPIEXEC_POSTFLAGS    ""    CACHE STRING "These flags will be placed after all flags passed to mpiexec.")
-
-# Set the number of processes to the physical processor count
-cmake_host_system_information(RESULT _MPIEXEC_NUMPROCS QUERY NUMBER_OF_PHYSICAL_CORES)
-set(MPIEXEC_MAX_NUMPROCS "${_MPIEXEC_NUMPROCS}" CACHE STRING "Maximum number of processors available to run MPI applications.")
-unset(_MPIEXEC_NUMPROCS)
-mark_as_advanced(MPIEXEC_EXECUTABLE MPIEXEC_NUMPROC_FLAG MPIEXEC_PREFLAGS MPIEXEC_POSTFLAGS MPIEXEC_MAX_NUMPROCS)
-
-#=============================================================================
-# Backward compatibility input hacks.  Propagate the FindMPI hints to C and
-# CXX if the respective new versions are not defined.  Translate the old
-# MPI_LIBRARY and MPI_EXTRA_LIBRARY to respective MPI_${LANG}_LIBRARIES.
-#
-# Once we find the new variables, we translate them back into their old
-# equivalents below.
-foreach (LANG IN ITEMS C CXX)
-  # Old input variables.
-  set(_MPI_OLD_INPUT_VARS COMPILER COMPILE_FLAGS INCLUDE_PATH LINK_FLAGS)
-
-  # Set new vars based on their old equivalents, if the new versions are not already set.
-  foreach (var ${_MPI_OLD_INPUT_VARS})
-    if (NOT MPI_${LANG}_${var} AND MPI_${var})
-      set(MPI_${LANG}_${var} "${MPI_${var}}")
-    endif()
-  endforeach()
-
-  # Chop the old compile flags into options and definitions
-  if(MPI_${LANG}_COMPILE_FLAGS)
-    unset(MPI_${LANG}_COMPILE_OPTIONS)
-    unset(MPI_${LANG}_COMPILE_DEFINITIONS)
-    separate_arguments(MPI_SEPARATE_FLAGS NATIVE_COMMAND "${MPI_${LANG}_COMPILE_FLAGS}")
-    foreach(_MPI_FLAG IN LISTS MPI_SEPARATE_FLAGS)
-      if("${_MPI_FLAG}" MATCHES "^ *[-/D]([^ ]+)")
-        list(APPEND MPI_${LANG}_COMPILE_DEFINITIONS "${CMAKE_MATCH_1}")
-      else()
-        list(APPEND MPI_${LANG}_COMPILE_FLAGS "${_MPI_FLAG}")
-      endif()
-    endforeach()
-    unset(MPI_SEPARATE_FLAGS)
-  endif()
-
-  # If a list of libraries was given, we'll split it into new-style cache variables
-  if(NOT MPI_${LANG}_LIB_NAMES)
-    foreach(_MPI_LIB IN LISTS MPI_${LANG}_LIBRARIES MPI_LIBRARY MPI_EXTRA_LIBRARY)
-      get_filename_component(_MPI_PLAIN_LIB_NAME "${_MPI_LIB}" NAME_WE)
-      get_filename_component(_MPI_LIB_NAME "${_MPI_LIB}" NAME)
-      get_filename_component(_MPI_LIB_DIR "${_MPI_LIB}" DIRECTORY)
-      list(APPEND MPI_PLAIN_LIB_NAMES_WORK "${_MPI_PLAIN_LIB_NAME}")
-      find_library(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY
-        NAMES "${_MPI_LIB_NAME}" "lib${_MPI_LIB_NAME}"
-        HINTS ${_MPI_LIB_DIR} $ENV{MPI_LIB}
-        DOC "Location of the ${_MPI_PLAIN_LIB_NAME} library for MPI"
-      )
-      mark_as_advanced(MPI_${_MPI_PLAIN_LIB_NAME}_LIBRARY)
-    endforeach()
-  endif()
-endforeach()
-#=============================================================================
-
-unset(MPI_VERSION)
-unset(MPI_VERSION_MAJOR)
-unset(MPI_VERSION_MINOR)
-
-unset(_MPI_MIN_VERSION)
-
-# This loop finds the compilers and sends them off for interrogation.
-foreach(LANG IN ITEMS C CXX Fortran)
-  if(CMAKE_${LANG}_COMPILER_LOADED)
-    if(NOT MPI_FIND_COMPONENTS)
-      set(_MPI_FIND_${LANG} TRUE)
-    elseif( ${LANG} IN_LIST MPI_FIND_COMPONENTS)
-      set(_MPI_FIND_${LANG} TRUE)
-    elseif( ${LANG} STREQUAL CXX AND NOT MPI_CXX_SKIP_MPICXX AND MPICXX IN_LIST MPI_FIND_COMPONENTS )
-      set(_MPI_FIND_${LANG} TRUE)
-    else()
-      set(_MPI_FIND_${LANG} FALSE)
-    endif()
-  else()
-    set(_MPI_FIND_${LANG} FALSE)
-  endif()
-  if(_MPI_FIND_${LANG})
-    if( ${LANG} STREQUAL CXX AND NOT MPICXX IN_LIST MPI_FIND_COMPONENTS )
-      set(MPI_CXX_SKIP_MPICXX FALSE CACHE BOOL "If true, the MPI-2 C++ bindings are disabled using definitions.")
-      mark_as_advanced(MPI_CXX_SKIP_MPICXX)
-    endif()
-    if(NOT (MPI_${LANG}_LIB_NAMES AND (MPI_${LANG}_INCLUDE_PATH OR MPI_${LANG}_INCLUDE_DIRS OR MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS)))
-      if(NOT MPI_${LANG}_COMPILER AND NOT MPI_ASSUME_NO_BUILTIN_MPI)
-        # Should the imported targets be empty, we effectively try whether the compiler supports MPI on its own, which is the case on e.g.
-        # Cray PrgEnv.
-        _MPI_create_imported_target(${LANG})
-        _MPI_check_lang_works(${LANG})
-
-        # If the compiler can build MPI code on its own, it functions as an MPI compiler and we'll set the variable to point to it.
-        if(MPI_${LANG}_WORKS)
-          set(MPI_${LANG}_COMPILER "${CMAKE_${LANG}_COMPILER}" CACHE FILEPATH "MPI compiler for ${LANG}" FORCE)
-        endif()
-      endif()
-
-      # If the user specified a library name we assume they prefer that library over a wrapper. If not, they can disable skipping manually.
-      if(NOT DEFINED MPI_SKIP_COMPILER_WRAPPER AND MPI_GUESS_LIBRARY_NAME)
-        set(MPI_SKIP_COMPILER_WRAPPER TRUE)
-      endif()
-      if(NOT MPI_SKIP_COMPILER_WRAPPER)
-        if(MPI_${LANG}_COMPILER)
-          # If the user supplies a compiler *name* instead of an absolute path, assume that we need to find THAT compiler.
-          if (NOT IS_ABSOLUTE "${MPI_${LANG}_COMPILER}")
-            # Get rid of our default list of names and just search for the name the user wants.
-            set(_MPI_${LANG}_COMPILER_NAMES "${MPI_${LANG}_COMPILER}")
-            unset(MPI_${LANG}_COMPILER CACHE)
-          endif()
-          # If the user specifies a compiler, we don't want to try to search libraries either.
-          set(MPI_PINNED_COMPILER TRUE)
-        else()
-          set(MPI_PINNED_COMPILER FALSE)
-        endif()
-
-        # If we have an MPI base directory, we'll try all compiler names in that one first.
-        # This should prevent mixing different MPI environments
-        if(_MPI_BASE_DIR)
-          find_program(MPI_${LANG}_COMPILER
-            NAMES  ${_MPI_${LANG}_COMPILER_NAMES}
-            PATH_SUFFIXES bin sbin
-            HINTS  ${_MPI_BASE_DIR}
-            NO_DEFAULT_PATH
-            DOC    "MPI compiler for ${LANG}"
-          )
-        endif()
-
-        # If the base directory did not help (for example because the mpiexec isn't in the same directory as the compilers),
-        # we shall try searching in the default paths.
-        find_program(MPI_${LANG}_COMPILER
-          NAMES  ${_MPI_${LANG}_COMPILER_NAMES}
-          PATH_SUFFIXES bin sbin
-          DOC    "MPI compiler for ${LANG}"
-        )
-
-        if(MPI_${LANG}_COMPILER STREQUAL CMAKE_${LANG}_COMPILER)
-          set(MPI_SKIP_GUESSING TRUE)
-        elseif(MPI_${LANG}_COMPILER)
-          _MPI_interrogate_compiler(${LANG})
-        else()
-          set(MPI_${LANG}_WRAPPER_FOUND FALSE)
-        endif()
-      else()
-        set(MPI_${LANG}_WRAPPER_FOUND FALSE)
-        set(MPI_PINNED_COMPILER FALSE)
-      endif()
-
-      if(NOT MPI_${LANG}_WRAPPER_FOUND AND NOT MPI_PINNED_COMPILER)
-        # For C++, we may use the settings for C. Should a given compiler wrapper for C++ not exist, but one for C does, we copy over the
-        # settings for C. An MPI distribution that is in this situation would be IBM Platform MPI.
-        if("${LANG}" STREQUAL "CXX" AND MPI_C_WRAPPER_FOUND)
-          set(MPI_${LANG}_COMPILE_OPTIONS          ${MPI_C_COMPILE_OPTIONS}     CACHE STRING "MPI ${LANG} compilation options"           )
-          set(MPI_${LANG}_COMPILE_DEFINITIONS      ${MPI_C_COMPILE_DEFINITIONS} CACHE STRING "MPI ${LANG} compilation definitions"       )
-          set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS  ${MPI_C_INCLUDE_DIRS}        CACHE STRING "MPI ${LANG} additional include directories")
-          set(MPI_${LANG}_LINK_FLAGS               ${MPI_C_LINK_FLAGS}          CACHE STRING "MPI ${LANG} linker flags"                  )
-          set(MPI_${LANG}_LIB_NAMES                ${MPI_C_LIB_NAMES}           CACHE STRING "MPI ${LANG} libraries to link against"     )
-          set(MPI_${LANG}_WRAPPER_FOUND TRUE)
-        elseif(NOT MPI_SKIP_GUESSING)
-          _MPI_guess_settings(${LANG})
-        endif()
-      endif()
-    endif()
-
-    _MPI_split_include_dirs(${LANG})
-    if(NOT MPI_${LANG}_COMPILER STREQUAL CMAKE_${LANG}_COMPILER)
-      _MPI_assemble_include_dirs(${LANG})
-      _MPI_assemble_libraries(${LANG})
-    endif()
-    _MPI_adjust_compile_definitions(${LANG})
-    # We always create imported targets even if they're empty
-    _MPI_create_imported_target(${LANG})
-
-    if(NOT MPI_${LANG}_WORKS)
-      _MPI_check_lang_works(${LANG})
-    endif()
-
-    # Next, we'll initialize the MPI variables that have not been previously set.
-    set(MPI_${LANG}_COMPILE_OPTIONS          "" CACHE STRING "MPI ${LANG} compilation flags"             )
-    set(MPI_${LANG}_COMPILE_DEFINITIONS      "" CACHE STRING "MPI ${LANG} compilation definitions"       )
-    set(MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS  "" CACHE STRING "MPI ${LANG} additional include directories")
-    set(MPI_${LANG}_LINK_FLAGS               "" CACHE STRING "MPI ${LANG} linker flags"                  )
-    set(MPI_${LANG}_LIB_NAMES                "" CACHE STRING "MPI ${LANG} libraries to link against"     )
-    mark_as_advanced(MPI_${LANG}_COMPILE_OPTIONS MPI_${LANG}_COMPILE_DEFINITIONS MPI_${LANG}_LINK_FLAGS
-      MPI_${LANG}_LIB_NAMES MPI_${LANG}_ADDITIONAL_INCLUDE_DIRS MPI_${LANG}_COMPILER)
-
-    # If we've found MPI, then we'll perform additional analysis: Determine the MPI version, MPI library version, supported
-    # MPI APIs (i.e. MPI-2 C++ bindings). For Fortran we also need to find specific parameters if we're under MPI-3.
-    if(MPI_${LANG}_WORKS)
-      if("${LANG}" STREQUAL "CXX" AND NOT DEFINED MPI_MPICXX_FOUND)
-        if(NOT MPI_CXX_SKIP_MPICXX AND NOT MPI_CXX_VALIDATE_SKIP_MPICXX)
-          _MPI_try_staged_settings(${LANG} test_mpi MPICXX FALSE)
-          if(MPI_RESULT_${LANG}_test_mpi_MPICXX)
-            set(MPI_MPICXX_FOUND TRUE)
-          else()
-            set(MPI_MPICXX_FOUND FALSE)
-          endif()
-        else()
-          set(MPI_MPICXX_FOUND FALSE)
-        endif()
-      endif()
-
-      # At this point, we know the bindings present but not the MPI version or anything else.
-      if(NOT DEFINED MPI_${LANG}_VERSION)
-        unset(MPI_${LANG}_VERSION_MAJOR)
-        unset(MPI_${LANG}_VERSION_MINOR)
-      endif()
-      set(MPI_BIN_FOLDER ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/FindMPI)
-
-      # For Fortran, we'll want to use the most modern MPI binding to test capabilities other than the
-      # Fortran parameters, since those depend on the method of consumption.
-      # For C++, we can always use the C bindings, and should do so, since the C++ bindings do not exist in MPI-3
-      # whereas the C bindings do, and the C++ bindings never offered any feature advantage over their C counterparts.
-      if("${LANG}" STREQUAL "Fortran")
-        if(MPI_${LANG}_HAVE_F08_MODULE)
-          set(MPI_${LANG}_HIGHEST_METHOD F08_MODULE)
-        elseif(MPI_${LANG}_HAVE_F90_MODULE)
-          set(MPI_${LANG}_HIGHEST_METHOD F90_MODULE)
-        else()
-          set(MPI_${LANG}_HIGHEST_METHOD F77_HEADER)
-        endif()
-
-        # Another difference between C and Fortran is that we can't use the preprocessor to determine whether MPI_VERSION
-        # and MPI_SUBVERSION are provided. These defines did not exist in MPI 1.0 and 1.1 and therefore might not
-        # exist. For C/C++, test_mpi.c will handle the MPI_VERSION extraction, but for Fortran, we need mpiver.f90.
-        if(NOT DEFINED MPI_${LANG}_VERSION)
-          _MPI_try_staged_settings(${LANG} mpiver ${MPI_${LANG}_HIGHEST_METHOD} FALSE)
-          if(MPI_RESULT_${LANG}_mpiver_${MPI_${LANG}_HIGHEST_METHOD})
-            file(STRINGS ${MPI_BIN_FOLDER}/mpiver_${LANG}.bin _MPI_VERSION_STRING LIMIT_COUNT 1 REGEX "INFO:MPI-VER")
-            if("${_MPI_VERSION_STRING}" MATCHES ".*INFO:MPI-VER\\[([0-9]+)\\.([0-9]+)\\].*")
-              set(MPI_${LANG}_VERSION_MAJOR "${CMAKE_MATCH_1}")
-              set(MPI_${LANG}_VERSION_MINOR "${CMAKE_MATCH_2}")
-              set(MPI_${LANG}_VERSION "${MPI_${LANG}_VERSION_MAJOR}.${MPI_${LANG}_VERSION_MINOR}")
-            endif()
-          endif()
-        endif()
-
-        # Finally, we want to find out which capabilities a given interface supports, compare the MPI-3 standard.
-        # This is determined by interface specific parameters MPI_SUBARRAYS_SUPPORTED and MPI_ASYNC_PROTECTS_NONBLOCKING
-        # and might vary between the different methods of consumption.
-        if(MPI_DETERMINE_Fortran_CAPABILITIES AND NOT MPI_Fortran_CAPABILITIES_DETERMINED)
-          foreach(mpimethod IN ITEMS F08_MODULE F90_MODULE F77_HEADER)
-            if(MPI_${LANG}_HAVE_${mpimethod})
-              set(MPI_${LANG}_${mpimethod}_SUBARRAYS FALSE)
-              set(MPI_${LANG}_${mpimethod}_ASYNCPROT FALSE)
-              _MPI_try_staged_settings(${LANG} fortranparam_mpi ${mpimethod} TRUE)
-              if(MPI_RESULT_${LANG}_fortranparam_mpi_${mpimethod} AND
-                NOT "${MPI_RUN_RESULT_${LANG}_fortranparam_mpi_${mpimethod}}" STREQUAL "FAILED_TO_RUN")
-                if("${MPI_RUN_OUTPUT_${LANG}_fortranparam_mpi_${mpimethod}}" MATCHES
-                  ".*INFO:SUBARRAYS\\[ *([TF]) *\\]-ASYNCPROT\\[ *([TF]) *\\].*")
-                  if("${CMAKE_MATCH_1}" STREQUAL "T")
-                    set(MPI_${LANG}_${mpimethod}_SUBARRAYS TRUE)
-                  endif()
-                  if("${CMAKE_MATCH_2}" STREQUAL "T")
-                    set(MPI_${LANG}_${mpimethod}_ASYNCPROT TRUE)
-                  endif()
-                endif()
-              endif()
-            endif()
-          endforeach()
-          set(MPI_Fortran_CAPABILITIES_DETERMINED TRUE)
-        endif()
-      else()
-        set(MPI_${LANG}_HIGHEST_METHOD normal)
-
-        # By the MPI-2 standard, MPI_VERSION and MPI_SUBVERSION are valid for both C and C++ bindings.
-        if(NOT DEFINED MPI_${LANG}_VERSION)
-          file(STRINGS ${MPI_BIN_FOLDER}/test_mpi_${LANG}.bin _MPI_VERSION_STRING LIMIT_COUNT 1 REGEX "INFO:MPI-VER")
-          if("${_MPI_VERSION_STRING}" MATCHES ".*INFO:MPI-VER\\[([0-9]+)\\.([0-9]+)\\].*")
-            set(MPI_${LANG}_VERSION_MAJOR "${CMAKE_MATCH_1}")
-            set(MPI_${LANG}_VERSION_MINOR "${CMAKE_MATCH_2}")
-            set(MPI_${LANG}_VERSION "${MPI_${LANG}_VERSION_MAJOR}.${MPI_${LANG}_VERSION_MINOR}")
-          endif()
-        endif()
-      endif()
-
-      unset(MPI_BIN_FOLDER)
-
-      # At this point, we have dealt with determining the MPI version and parameters for each Fortran method available.
-      # The one remaining issue is to determine which MPI library is installed.
-      # Determining the version and vendor of the MPI library is only possible via MPI_Get_library_version() at runtime,
-      # and therefore we cannot do this while cross-compiling (a user may still define MPI_<lang>_LIBRARY_VERSION_STRING
-      # themselves and we'll attempt splitting it, which is equivalent to provide the try_run output).
-      # It's also worth noting that the installed version string can depend on the language, or on the system the binary
-      # runs on if MPI is not statically linked.
-      if(MPI_DETERMINE_LIBRARY_VERSION AND NOT MPI_${LANG}_LIBRARY_VERSION_STRING)
-        _MPI_try_staged_settings(${LANG} libver_mpi ${MPI_${LANG}_HIGHEST_METHOD} TRUE)
-        if(MPI_RESULT_${LANG}_libver_mpi_${MPI_${LANG}_HIGHEST_METHOD} AND
-          "${MPI_RUN_RESULT_${LANG}_libver_mpi_${MPI_${LANG}_HIGHEST_METHOD}}" EQUAL "0")
-          string(STRIP "${MPI_RUN_OUTPUT_${LANG}_libver_mpi_${MPI_${LANG}_HIGHEST_METHOD}}"
-            MPI_${LANG}_LIBRARY_VERSION_STRING)
-        else()
-          set(MPI_${LANG}_LIBRARY_VERSION_STRING "NOTFOUND")
-        endif()
-      endif()
-    endif()
-
-    set(MPI_${LANG}_FIND_QUIETLY ${MPI_FIND_QUIETLY})
-    set(MPI_${LANG}_FIND_VERSION ${MPI_FIND_VERSION})
-    set(MPI_${LANG}_FIND_VERSION_EXACT ${MPI_FIND_VERSION_EXACT})
-
-    unset(MPI_${LANG}_REQUIRED_VARS)
-    if (MPI_${LANG}_WRAPPER_FOUND OR MPI_${LANG}_GUESS_FOUND)
-      foreach(mpilibname IN LISTS MPI_${LANG}_LIB_NAMES)
-        list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${mpilibname}_LIBRARY")
-      endforeach()
-      list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_LIB_NAMES")
-      if("${LANG}" STREQUAL "Fortran")
-        # For Fortran we only need one of the module or header directories to have *some* support for MPI.
-        if(NOT MPI_${LANG}_MODULE_DIR)
-          list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_F77_HEADER_DIR")
-        endif()
-        if(NOT MPI_${LANG}_F77_HEADER_DIR)
-          list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_MODULE_DIR")
-        endif()
-      else()
-        list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_HEADER_DIR")
-      endif()
-      if(MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
-        foreach(mpiincvar IN LISTS MPI_${LANG}_ADDITIONAL_INCLUDE_VARS)
-          list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${mpiincvar}_INCLUDE_DIR")
-        endforeach()
-      endif()
-      # Append the works variable now. If the settings did not work, this will show up properly.
-      list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_WORKS")
-    else()
-      # If the compiler worked implicitly, use its path as output.
-      # Should the compiler variable be set, we also require it to work.
-      list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_COMPILER")
-      if(MPI_${LANG}_COMPILER)
-        list(APPEND MPI_${LANG}_REQUIRED_VARS "MPI_${LANG}_WORKS")
-      endif()
-    endif()
-    find_package_handle_standard_args(MPI_${LANG} REQUIRED_VARS ${MPI_${LANG}_REQUIRED_VARS}
-      VERSION_VAR MPI_${LANG}_VERSION)
-
-    if(DEFINED MPI_${LANG}_VERSION)
-      if(NOT _MPI_MIN_VERSION OR _MPI_MIN_VERSION VERSION_GREATER MPI_${LANG}_VERSION)
-        set(_MPI_MIN_VERSION MPI_${LANG}_VERSION)
-      endif()
-    endif()
-  endif()
-endforeach()
-
-unset(_MPI_REQ_VARS)
-foreach(LANG IN ITEMS C CXX Fortran)
-  if((NOT MPI_FIND_COMPONENTS AND CMAKE_${LANG}_COMPILER_LOADED) OR LANG IN_LIST MPI_FIND_COMPONENTS)
-    list(APPEND _MPI_REQ_VARS "MPI_${LANG}_FOUND")
-  endif()
-endforeach()
-
-if(MPICXX IN_LIST MPI_FIND_COMPONENTS)
-  list(APPEND _MPI_REQ_VARS "MPI_MPICXX_FOUND")
-endif()
-
-find_package_handle_standard_args(MPI
-    REQUIRED_VARS ${_MPI_REQ_VARS}
-    VERSION_VAR ${_MPI_MIN_VERSION}
-    HANDLE_COMPONENTS)
-
-#=============================================================================
-# More backward compatibility stuff
-
-# For compatibility reasons, we also define MPIEXEC
-set(MPIEXEC "${MPIEXEC_EXECUTABLE}")
-
-# Copy over MPI_<LANG>_INCLUDE_PATH from the assembled INCLUDE_DIRS.
-foreach(LANG IN ITEMS C CXX Fortran)
-  if(MPI_${LANG}_FOUND)
-    set(MPI_${LANG}_INCLUDE_PATH "${MPI_${LANG}_INCLUDE_DIRS}")
-    unset(MPI_${LANG}_COMPILE_FLAGS)
-    if(MPI_${LANG}_COMPILE_OPTIONS)
-      set(MPI_${LANG}_COMPILE_FLAGS "${MPI_${LANG}_COMPILE_OPTIONS}")
-    endif()
-    if(MPI_${LANG}_COMPILE_DEFINITIONS)
-      foreach(_MPI_DEF IN LISTS MPI_${LANG}_COMPILE_DEFINITIONS)
-        string(APPEND MPI_${LANG}_COMPILE_FLAGS " -D${_MPI_DEF}")
-      endforeach()
-    endif()
-  endif()
-endforeach()
-
-# Bare MPI sans ${LANG} vars are set to CXX then C, depending on what was found.
-# This mimics the behavior of the old language-oblivious FindMPI.
-set(_MPI_OLD_VARS COMPILER INCLUDE_PATH COMPILE_FLAGS LINK_FLAGS LIBRARIES)
-if (MPI_CXX_FOUND)
-  foreach (var ${_MPI_OLD_VARS})
-    set(MPI_${var} ${MPI_CXX_${var}})
-  endforeach()
-elseif (MPI_C_FOUND)
-  foreach (var ${_MPI_OLD_VARS})
-    set(MPI_${var} ${MPI_C_${var}})
-  endforeach()
-endif()
-
-# Chop MPI_LIBRARIES into the old-style MPI_LIBRARY and MPI_EXTRA_LIBRARY, and set them in cache.
-if (MPI_LIBRARIES)
-  list(GET MPI_LIBRARIES 0 MPI_LIBRARY_WORK)
-  set(MPI_LIBRARY "${MPI_LIBRARY_WORK}")
-  unset(MPI_LIBRARY_WORK)
-else()
-  set(MPI_LIBRARY "MPI_LIBRARY-NOTFOUND")
-endif()
-
-list(LENGTH MPI_LIBRARIES MPI_NUMLIBS)
-if (MPI_NUMLIBS GREATER 1)
-  set(MPI_EXTRA_LIBRARY_WORK "${MPI_LIBRARIES}")
-  list(REMOVE_AT MPI_EXTRA_LIBRARY_WORK 0)
-  set(MPI_EXTRA_LIBRARY "${MPI_EXTRA_LIBRARY_WORK}")
-  unset(MPI_EXTRA_LIBRARY_WORK)
-else()
-  set(MPI_EXTRA_LIBRARY "MPI_EXTRA_LIBRARY-NOTFOUND")
-endif()
-#=============================================================================
-
-# unset these vars to cleanup namespace
-unset(_MPI_OLD_VARS)
-unset(_MPI_PREFIX_PATH)
-unset(_MPI_BASE_DIR)
-foreach (lang C CXX Fortran)
-  unset(_MPI_${LANG}_COMPILER_NAMES)
-endforeach()
-
-cmake_policy(POP)