[Mpi-forum] Problem with large number of process

Hello, I have a simple MPI program, everything is fine for a small number of processes = {10,100, and 1000}, the problem is that for 10000 processes I have a runtime error. The attached file contains the generated error messages for n = 10 000. - I tested my code on 4 nodes cluster within grid5000 platform (on each node: 2 CPUs Intel Xeon E5-2630 v3, 8 cores/CPU, 126GB RAM, 5x558GB HDD, 186GB SSD, 10Gbps ethernet) - The mpi.c file contains the following code: int main(int argc, char *argv[]) { int myRank, numProcs; MPI_Init(&argc, &argv); MPI_Comm_rank(MPI_COMM_WORLD, &myRank); MPI_Comm_size(MPI_COMM_WORLD, &numProcs); if(myRank==0) printf("%d -%d\n",numProcs,myRank); MPI_Finalize(); return(0); } Thank you.