OilfieldToolsNet/opm-core
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

FindPetsc uses system-provided MPI if available

Browse Source 
When building with USE_MPI=ON the FindPetsc now uses the system provided
MPI if available. Falls back to looking for the PETSc provided unimpi for
sequential builds.
This commit is contained in:
Jørgen Kvalsvik 2014-09-17 13:33:41 +02:00
parent b595dd0abd
commit 95357155e4
1 changed files with 39 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

49
cmake/Modules/FindPetsc.cmake
View File

@ -73,13 +73,41 @@ if (NOT PETSC_NORMAL_INCLUDE_DIR)
PATH_SUFFIXES "petsc-3.4.4" "include" "petsc"
)
endif (NOT PETSC_NORMAL_INCLUDE_DIR)
if (NOT PETSC_MPIUNI_INCLUDE_DIR)
find_path (PETSC_MPIUNI_INCLUDE_DIR
NAMES "mpi.h"
PATHS ${PETSC_ROOT}
PATH_SUFFIXES "mpiuni" "mpi"
)
endif (NOT PETSC_MPIUNI_INCLUDE_DIR)
# if parallel computing is explicitly enabled - reuse the paths and links from
# OpmMainLib + OpmFind
# this needs to be called explicitly as FindPetsc runs before OpmMainLib starts
# looking for MPI (for some reason). Ideally this isn't necessary
if(USE_MPI)
find_package(MPI)
endif()
set(PETSC_MPI_FOUND ${MPI_FOUND})
set(PETSC_MPI_INCLUDE_DIRS ${MPI_INCLUDE_PATH})
set(PETSC_MPI_LIBRARIES ${MPI_LIBRARIES})
# fallback - use the petsc provided implementation of serial MPI.
if (NOT PETSC_MPI_INCLUDE_DIRS)
message(STATUS "Building without MPI support - looking for PETSc provided serial implementation")
find_path (PETSC_MPI_INCLUDE_DIRS
NAMES "mpi.h"
PATHS ${PETSC_ROOT}/include
PATH_SUFFIXES "mpiuni"
)
if(PETSC_MPI_INCLUDE_DIRS)
# not setting special linkage
set(PETSC_MPI_FOUND 1)
endif(PETSC_MPI_INCLUDE_DIRS)
endif(NOT PETSC_MPI_INCLUDE_DIRS)
# couldn't find any usable mpi implementation - abort
if(NOT PETSC_MPI_FOUND)
message(STATUS "Could not find any suitable MPI implementation. Is PETSC_ROOT set?")
return()
endif()
# look for actual Petsc library
if (NOT PETSC_LIBRARY)
find_library(PETSC_LIBRARY
@ -92,10 +120,11 @@ if(NOT PETSC_LIBRARY)
message(STATUS "Could not find the PETSc library")
return()
endif()
list(APPEND CMAKE_REQUIRED_LIBRARIES "${PETSC_LIBRARY}")
if (PETSC_MPIUNI_INCLUDE_DIR AND PETSC_NORMAL_INCLUDE_DIR)
list (APPEND PETSC_INCLUDE_DIR ${PETSC_MPIUNI_INCLUDE_DIR} ${PETSC_NORMAL_INCLUDE_DIR})
list(APPEND CMAKE_REQUIRED_LIBRARIES "${PETSC_LIBRARY}" "${PETSC_MPI_LIBRARIES}")
if (PETSC_MPI_INCLUDE_DIRS AND PETSC_NORMAL_INCLUDE_DIR)
list (APPEND PETSC_INCLUDE_DIR ${PETSC_MPI_INCLUDE_DIRS} ${PETSC_NORMAL_INCLUDE_DIR})
endif()
include(FindPackageHandleStandardArgs)