Hi, I am trying to run my MPI program on multiple processes, but I get the below errors, attached is the code. The code runs fine on 1 process. When running through Visual studio 2008: buffer provided too short for path: 4096 provided, 0 needed launch failed: CreateProcess(""ABC-HP c:\Users\ABC\Desktop\BS\Debug\BS.e xe) on 'ABC-HP' failed, error 87 - The parameter is incorrect. When running through command prompt: Fatal error in PMPI_Scatter: Invalid count, error stack: PMPI_Scatter(791): MPI_Scatter(sbuf=10030040, scount=-858993460, MPI_INT, rbuf=0 0000000, rcount=-858993460, MPI_INT, root=0, MPI_COMM_WORLD) failed PMPI_Scatter(728): Negative count, value is -858993460 Enter number of elements to be sorted job aborted: rank: node: exit code[: error message] 0: ABC-HP: 1: process 0 exited without calling finalize Please help. Regards.