Hi,
Is there any way to trace open mpi internal function calls in a MPI user
program? If so, can any one explain it with an example? such as helloworld? I
build open MPI with the VampirTrace options, and compile the following program
with picc-vt,. but I didn't get any tracing info.
Thanks
D. G.
#include <stdio.h>#include <mpi.h>
int main (int argc, char **argv){ int rank, size;
MPI_Init (&argc, &argv); MPI_Comm_rank (MPI_COMM_WORLD, &rank);
MPI_Comm_size (MPI_COMM_WORLD, &size); printf( "Hello world from process %d of
%d\n", rank, size ); MPI_Barrier(MPI_COMM_WORLD); MPI_Finalize(); return 0;}
