Dear Jody Thank you for your reply. Based on hostfile examples you show me, I understand 'slots' is number of cpus of each node I mentioned in the file, am I true?
Wishes On Wed, Feb 26, 2014 at 1:02 PM, jody <jody....@gmail.com> wrote: > Hi > I think you should use the "--host" or "--hostfile" options: > http://www.open-mpi.org/faq/?category=running#simple-spmd-run > http://www.open-mpi.org/faq/?category=running#mpirun-host > Hope this helps > Jody > > > On Wed, Feb 26, 2014 at 8:31 AM, raha khalili > <khadije.khal...@gmail.com>wrote: > >> 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 >> >> >> _______________________________________________ >> users mailing list >> us...@open-mpi.org >> http://www.open-mpi.org/mailman/listinfo.cgi/users >> > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users > -- Khadije Khalili Ph.D Student of Solid-State Physics Department of Physics University of Mazandaran Babolsar, Iran kh.khal...@stu.umz.ac.ir
