From what I understand so far, there is no need to have machines.LINUX file if I am running in a single machine. I have a quad core machine and I want to use all cores. But when I run, only one node is used. How do I use all 4 nodes?
As I have understood so far you have run non-MPI program.
I was running an MPI program but misunderstood the way it should run on my machine! i am used to using a batch file based submitting in a supercomputer and I forgot to use mpirun command.
Thanks for the fast reply.