Dear Users This is my first post in open-mpi forum and I am beginner in using mpi. I want to run a program which does between 4 systems consist of one server and three nodes with 20 cpus. When I run: *mpirun -np 20 /home/khalili/espresso-5.0.2/bin/pw.x -in si.in <http://si.in> | tee si.out*, after writing htop from terminal, it seems the program doesn't use cpus of three other nodes and just use the cpus of server. Could you tell me please how do I can use all my cpus.
Regards -- Khadije Khalili Ph.D Student of Solid-State Physics Department of Physics University of Mazandaran Babolsar, Iran kh.khal...@stu.umz.ac.ir
