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cmake: fix mpi default on Windows

This commit is contained in:
Christoph Junghans 2020-04-03 09:57:14 -06:00
parent b83c98db14
commit cab260f3ab
1 changed files with 9 additions and 5 deletions
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14
cmake/CMakeLists.txt
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@ -176,11 +176,15 @@ if(PKG_USER-ADIOS)
target_link_libraries(lammps PRIVATE adios2::adios2)
endif()
# do MPI detection after language activation,
# in case MPI for these languages is required
set(MPI_CXX_SKIP_MPICXX TRUE)
find_package(MPI QUIET)
option(BUILD_MPI "Build MPI version" ${MPI_FOUND})
if (CMAKE_SYSTEM_NAME STREQUAL Windows)
option(BUILD_MPI "Build MPI version" OFF)
else()
# do MPI detection after language activation,
# in case MPI for these languages is required
set(MPI_CXX_SKIP_MPICXX TRUE)
find_package(MPI QUIET)
option(BUILD_MPI "Build MPI version" ${MPI_FOUND})
endif()
if(BUILD_MPI)
# We use a non-standard procedure to compile with MPI on windows