How to compile an MPI included c program using cmake

by

OpenMP

Is this a question about OpenMP? Then all you have to do is compile with -fopenmp which you can do by appending it to CMAKE_C_FLAGS, for example:

SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fopenmp)

MPI

For MPI, you have to find mpi first

find_package(MPI) #make it REQUIRED, if you want

then add it’s header files to your search path

include_directories(SYSTEM ${MPI_INCLUDE_PATH})

and finally link your program(s) (which is my_mpi_target in my case)

 target_link_libraries(my_mpi_target ${MPI_C_LIBRARIES})

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