hiii i am new here and i have a 18 node cluster that works pretty good when i execute the command: *mpiexec -f machinefile -n 18 hostname* and the folowing output: elec-cluster-1 elec-cluster-2 elec-cluster-3 elec-cluster-5 elec-cluster-4 elec-cluster-6 elec-cluster-7 elec-cluster-9 elec-cluster-8 elec-cluster-10 elec-cluster-11 elec-cluster-13 elec-cluster-14 elec-cluster-15 elec-cluster-16 elec-cluster-12 elec-cluster-18 elec-cluster-17 when i execute the command: *mpiexec -n 5 -f machinefile ./examples/cpi* nothing is seems to work and i receive: [proxy:0:0@elec-cluster-1] HYDU_create_process (/home/cluster/mpich2/mpich-3.1/src/pm/hydra/utils/launch/launch.c:75): execvp error on file ./examples/cpi (No such file or directory) =================================================================================== = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES = PID 2806 RUNNING AT 147.161.4.200 = EXIT CODE: 255 = CLEANING UP REMAINING PROCESSES = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES =================================================================================== [proxy:0:2@elec-cluster-3] HYDU_create_process (/home/cluster/mpich2/mpich-3.1/src/pm/hydra/utils/launch/launch.c:75): execvp error on file ./examples/cpi (No such file or directory) [proxy:0:3@elec-cluster-4] HYDU_create_process (/home/cluster/mpich2/mpich-3.1/src/pm/hydra/utils/launch/launch.c:75): =================================================================================== = BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES = PID 6718 RUNNING AT 147.161.4.202 = EXIT CODE: 255 = CLEANING UP REMAINING PROCESSES = YOU CAN IGNORE THE BELOW CLEANUP MESSAGES =================================================================================== i dont know what to do? another think is how to run and compile a c program? -- בברכה, יוסף אלון 050-4916740 _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss