On Sat, Nov 30, 2013 at 1:22 AM, Mahboobeh Eslami < mahboobeh.eslami at yahoo.com> wrote: > Thank you for your help > > What command do I use to use 8 cores > mdrun -nt 8 -s *.tpr or mpirun -np 8 mdrun_mpi -s *.tpr Chandan > > Good luck >