nprow = 2;
npcol=2;
Cblacs_get(0,0,&ictxt);
Cblacs_gridinit(&ictxt,"R",nprow,npcol);
Cblacs_gridinfo(ictxt,&nprow,&npcol,&myrow,&mycol);

I can compile and run a mpi application using mpiexec without any difficulties. 

What I want to do is to run a mpi application not in Terminal, I mean without using mpiexec or mpirun.

Is this doable? If it is, how can I setup mpd daemon and other necessary stuffs in source level?

Thanks. 

==========

hello.c

==========

#include <stdio.h>

#include <mpi.h>

static int run()

{
	int node;

	MPI_Init(xxx, xxx); /* TODO */

	MPI_Comm_rank(MPI_COMM_WORLD, &node);
	printf("Hello World from Node (%d)\n", node);
	MPI_Finalize();
	return 0;	
}

int main (int argc, char **argv)

{

run();

return 0;

}