Thipadin, I don't understand why this combination is being discussed ? On Thu, 3 Dec 2009, thipadin.seng-long at bull.net wrote: > salloc srun -n 1 mpirun -bynode -n 8 my_prog The "srun -n 1" is useless and I doubt anyone would ever try to use it. Is there a reason behind this ? Sylvain