I think you're mixing a few versions there: - You mention installing Open MPI v1.10 - But you say that running ompi_info shows MCA v2.1 (which probably means Open MPI v2.1) - And you say that running your code with MCA v2.0 (which probably means Open MPI v2.0) works
You might want to de-snaggle which version of Open MPI you are actually using, and verify that you are using that version on all nodes in your job. After that, describe what the problem is with your code. You may have an actual bug that just happens to work on Open MPI v2.0 but fails with Open MPI v2.1. > On Oct 13, 2017, at 9:18 AM, abhisek Mondal <abhisek.m...@gmail.com> wrote: > > Hi, > > I have installed an openmpi using following command: > yum install openmpi-1.10.0-10.el7 > > When I put ompi_info command it shows me that it is using MCAv.2.1. Is there > any way I can use MCA2.0 ? > > My program is not working under MCA2.1. > Please help me out here. > > Thank you > > -- > Abhisek Mondal > Senior Research Fellow > Structural Biology and Bioinformatics Division > CSIR-Indian Institute of Chemical Biology > Kolkata 700032 > INDIA > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://lists.open-mpi.org/mailman/listinfo/users -- Jeff Squyres jsquy...@cisco.com _______________________________________________ users mailing list users@lists.open-mpi.org https://lists.open-mpi.org/mailman/listinfo/users