Ankita, please read here: https://www.open-mpi.org/faq/?category=mpi-apps
On 25 April 2018 at 11:44, Ankita m <ankitamait...@gmail.com> wrote: > Can you please tell me whether to use mpicc compiler ar any other compiler > for openmpi programs > > On Wed, Apr 25, 2018 at 3:13 PM, Ankita m <ankitamait...@gmail.com> wrote: > >> i have 16 cores per one node. I usually use 4 node each node has 16 cores >> so total 64 processes. >> >> On Wed, Apr 25, 2018 at 2:57 PM, John Hearns via users < >> users@lists.open-mpi.org> wrote: >> >>> I do not see much wrong with that. >>> However nodes=4 ppn=2 makes 8 processes in all. >>> You are using mpirun -np 64 >>> >>> Actually it is better practice to use the PBS supplied environment >>> variables during the job, rather than hard-wiring 64 >>> I dont have access to a PBS cluster from my desk at the moment. >>> You could also investigate using mpiprocs=2 Then I think with openmpi >>> if it has compiled in PBS support all you would have to do is >>> mpirun >>> >>> Are you sure your compute servers only have two cores ?? >>> >>> I also see that you are commenting out the module load openmpi-3.0.1 I >>> would guess you want the default Opnempi, which is OK >>> >>> First thing I would do, before the mpirun line in that job script: >>> >>> which mpirun (check that you are picking up an Openmpi version) >>> >>> ldd ./cgles (check you are bringing in the libraries that you should) >>> >>> >>> Also run mpirun with the verbose flag -v >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> On 25 April 2018 at 11:10, Ankita m <ankitamait...@gmail.com> wrote: >>> >>>> >>>>> while using openmpi- 1.4.5 the program ended by showing this error >>>>> file (in the attachment) >>>>> >>>> >>>> I am Using PBS file . Below u can find the script that i am using to >>>> run my program >>>> >>>> _______________________________________________ >>>> users mailing list >>>> users@lists.open-mpi.org >>>> https://lists.open-mpi.org/mailman/listinfo/users >>>> >>> >>> >>> _______________________________________________ >>> users mailing list >>> users@lists.open-mpi.org >>> https://lists.open-mpi.org/mailman/listinfo/users >>> >> >> > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users >
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