Compiling C++ code with MPI for parallel processing


#include "mpi.h"
int main(int argc,char** argv)
{
MPI_Init(&argc,&argv);
...
...
MPI_Finalize();
}

then compile with
mpicxx

to run it, use
mpirun -np 4 ./a.out
for using 4 copies in 4 processors.

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