I'm pasting the error inline, for others' information. FYI, the error is "unable to open host file: machinefile". ----8<---- mpirun -f machinefile -n 2 /home/urp/mpich-install/hello [[email protected]] HYDU_parse_hostfile (./utils/args/args.c:323): unable to open host file: machinefile [[email protected]] mfile_fn (./ui/mpich/utils.c:341): error parsing hostfile [[email protected]] match_arg (./utils/args/args.c:153): match handler returned error [[email protected]] HYDU_parse_array (./utils/args/args.c:175): argument matching returned error [[email protected]] parse_args (./ui/mpich/utils.c:1609): error parsing input array [[email protected]] HYD_uii_mpx_get_parameters (./ui/mpich/utils.c:1660): unable to parse user arguments [[email protected]] main (./ui/mpich/mpiexec.c:153): error parsing parameters [root@masternode ~]# ----8<---- On 08/19/2013 01:27 AM, urmila pol wrote:

Dear sir,

I have attaching the screenshots of my errors please guide me .waiting for reply.

With regards,

Dr.Urmila R. Pol Assistant Professor, Department of computer Science, Shivaji University, Kolhapur.

-- Pavan Balaji http://www.mcs.anl.gov/~balaji