hi...

hi im having a problem during running my mpi program. when im try to run my program, this error happened:

One of the processes started by mpirun has exited with a nonzero exit
code.  This typically indicates that the process finished in error.
If your process did not finish in error, be sure to include a "return
0 " or "exit(0)" in your C code before exiting the application.

PID 26349 failed on node n0 (10.1.1.1) due to signal 13.

I've write already th return 0; in my program but the error still happen. please help me.
for your information im using LAM/MPI on rock cluster and my program using c++.

thanks...