Include mpi.h in Clion

Question

I am running linux (Debian) and I want to include the header mpi.h into my project. The mpi.h is located under /usr/include/mpi and running mpiCC and mpirun shows that it's installed. I couldn't find a clear tutorial.

Answer 1

You should add include_directories(/usr/include/mpi/) to your CMakeLists.txt and just include the header:

#include <mpi.h>

Answer 2

You should include the header file mpi/mpi.h

Like this

    #include<mpi/mpi.h>