$ mpirun -v -np 3 ./mpitest running /home/leroy2/Learning/./mpitest on 3 LINUX ch_p4 processors Created /home/leroy2/Learning/PI23057 rm_9181: p4_error: Could not gethostbyname for host /home/leroy2/Learning/./mpitest; may be invalid name : 61 p0_23168: p4_error: Child process exited while making connection to remote process on compute-0-0.local: 0