Mahesh, Depending what you are trying to accomplish, might using the mpirun option
-pernode -o- --pernode work for you? That requests that only one process be spawned per available node. We generally use this for hybrid codes, where the single process will spawn threads to the remaining processors. Just a thought, -- bennet On Fri, Nov 4, 2016 at 8:39 AM, Mahesh Nanavalla <mahesh.nanavalla...@gmail.com> wrote: > s........... > > Thanks for responding me. > i have solved that as below by limiting slots in hostfile > > root@OpenWrt:~# cat myhostfile > root@10.73.145.1 slots=1 > root@10.74.25.1 slots=1 > root@10.74.46.1 slots=1 > > > I want the difference between the slots limiting in myhostfile and runnig > --map-by node. > > I am awaiting for your reply. > > On Fri, Nov 4, 2016 at 5:25 PM, r...@open-mpi.org <r...@open-mpi.org> wrote: >> >> My apologies - the problem is that you list the option _after_ your >> executable name, and so we think it is an argument for your executable. You >> need to list the option _before_ your executable on the cmd line >> >> >> On Nov 4, 2016, at 4:44 AM, Mahesh Nanavalla >> <mahesh.nanavalla...@gmail.com> wrote: >> >> Thanks for reply, >> >> But,with space also not running on one process one each node >> >> root@OpenWrt:~# /usr/bin/mpirun --allow-run-as-root -np 3 --hostfile >> myhostfile /usr/bin/openmpiWiFiBulb --map-by node >> >> And >> >> If use like this it,s working fine(running one process on each node) >> /root@OpenWrt:~#/usr/bin/mpirun --allow-run-as-root -np 3 --host >> root@10.74.25.1,root@10.74.46.1,root@10.73.145.1 /usr/bin/openmpiWiFiBulb >> >> But,i want use hostfile only.. >> kindly help me..... >> >> >> On Fri, Nov 4, 2016 at 5:00 PM, r...@open-mpi.org <r...@open-mpi.org> wrote: >>> >>> you mistyped the option - it is “--map-by node”. Note the space between >>> “by” and “node” - you had typed it with a “-“ instead of a “space” >>> >>> >>> On Nov 4, 2016, at 4:28 AM, Mahesh Nanavalla >>> <mahesh.nanavalla...@gmail.com> wrote: >>> >>> Hi all, >>> >>> I am using openmpi-1.10.3,using quad core processor(node). >>> >>> I am running 3 processes on three nodes(provided by hostfile) each node >>> process is limited by --map-by-node as below >>> >>> root@OpenWrt:~# /usr/bin/mpirun --allow-run-as-root -np 3 --hostfile >>> myhostfile /usr/bin/openmpiWiFiBulb --map-by-node >>> >>> root@OpenWrt:~# cat myhostfile >>> root@10.73.145.1:1 >>> root@10.74.25.1:1 >>> root@10.74.46.1:1 >>> >>> >>> Problem is 3 process running on one node.it's not mapping one process by >>> node. >>> >>> is there any library used to run like above.if yes please tell me that . >>> >>> Kindly help me where am doing wrong... >>> >>> Thanks&Regards, >>> Mahesh N >>> >>> _______________________________________________ >>> users mailing list >>> users@lists.open-mpi.org >>> https://rfd.newmexicoconsortium.org/mailman/listinfo/users >>> >>> >>> >>> _______________________________________________ >>> users mailing list >>> users@lists.open-mpi.org >>> https://rfd.newmexicoconsortium.org/mailman/listinfo/users >> >> >> _______________________________________________ >> users mailing list >> users@lists.open-mpi.org >> https://rfd.newmexicoconsortium.org/mailman/listinfo/users >> >> >> >> _______________________________________________ >> users mailing list >> users@lists.open-mpi.org >> https://rfd.newmexicoconsortium.org/mailman/listinfo/users > > > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://rfd.newmexicoconsortium.org/mailman/listinfo/users _______________________________________________ users mailing list users@lists.open-mpi.org https://rfd.newmexicoconsortium.org/mailman/listinfo/users
