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helloworld-solution.c 409 B
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    #include <mpi.h>
    #include <stdio.h>
     
    int main(int argc, char *argv[])
    {
    int rank, nprocs, len;
    char   pname[MPI_MAX_PROCESSOR_NAME];
    
    
        MPI_Init(&argc, &argv);
        MPI_Comm_size(MPI_COMM_WORLD,&nprocs);
        MPI_Comm_rank(MPI_COMM_WORLD,&rank);
    
    
        MPI_Get_processor_name(pname,&len);
        printf("Hello world! from rank %d of %d on host %s\n", rank, nprocs,pname);
    
    
        MPI_Finalize();
    
        return 0;
    }