I have setup and configure accordingly except for NFS part. Because I am not requiring it for my application. I have set my ssh to login each other without password. I started with 2 nodes 1st. I can compile and run in my headnode using openmpi. But when I try to run my MPI application across nodes, there is nothing displaying. It just like hanging there.
Headnode: master client: slave4
The command I used to mpirun across nodes is as below:
mpirun -np 4 --host slave4 output
Since I not using NFS, so I installed OpenMPI in every nodes with same locations.
I wondering I missed out any configurations or not.