Hi Gilles, Thanks for the suggestion. If I do exclude sm in the command line in the following way it seems to work.
@chimera examples]$ mpirun -np 1 --mca btl ^sm hello_c libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs0 libibverbs: Warning: no userspace device-specific driver found for /sys/class/infiniband_verbs/uverbs0 -------------------------------------------------------------------------- [[20190,1],0]: A high-performance Open MPI point-to-point messaging module was unable to find any relevant network interfaces: Module: OpenFabrics (openib) Host: chimera Another transport will be used instead, although this may result in lower performance. NOTE: You can disable this warning by setting the MCA parameter btl_base_warn_component_unused to 0. -------------------------------------------------------------------------- Hello, world, I am 0 of 1, (Open MPI v3.1.3, package: Open MPI u...@chimera.ncl.res.in Distribution, ident: 3.1.3, repo rev: v3.1.3, Oct 29, 2018, 119) Will you suggest any way to permanently disable it. I know you have suggested checking openmpi-mca-params.conf file. But I am unable to locate it. If you can mention the steps it will be a huge help for me. Thanks Srijan On Mon, 13 Jul 2020 at 06:35, Gilles Gouaillardet via users < users@lists.open-mpi.org> wrote: > Srijan, > > The logs suggest you explicitly request the btl/sm component, and this > typically occurs > via a openmpi-mca-params.conf (that contains a line such as btl = > sm,openib,self), or the OMPI_MCA_btl environment variable > > Cheers, > > Gilles > > On Mon, Jul 13, 2020 at 1:50 AM Srijan Chatterjee via users < > users@lists.open-mpi.org> wrote: > >> Dear Open MPI users, >> I am using the following system >> CentOS release 6.6 >> Rocks 6.2 >> I have been trying to install openmpi-3.1.3. >> After installing it, in the example folder if want to test run I got the >> following error >> >> I run command mpirun -np 1 hello_c >> >> [user@chimera examples]$ mpirun -np 1 hello_c >> libibverbs: Warning: no userspace device-specific driver found for >> /sys/class/infiniband_verbs/uverbs0 >> libibverbs: Warning: no userspace device-specific driver found for >> /sys/class/infiniband_verbs/uverbs0 >> -------------------------------------------------------------------------- >> As of version 3.0.0, the "sm" BTL is no longer available in Open MPI. >> >> Efficient, high-speed same-node shared memory communication support in >> Open MPI is available in the "vader" BTL. To use the vader BTL, you >> can re-run your job with: >> >> mpirun --mca btl vader,self,... your_mpi_application >> -------------------------------------------------------------------------- >> -------------------------------------------------------------------------- >> A requested component was not found, or was unable to be opened. This >> means that this component is either not installed or is unable to be >> used on your system (e.g., sometimes this means that shared libraries >> that the component requires are unable to be found/loaded). Note that >> Open MPI stopped checking at the first component that it did not find. >> >> Host: chimera.pnc.res.in >> Framework: btl >> Component: sm >> -------------------------------------------------------------------------- >> -------------------------------------------------------------------------- >> It looks like MPI_INIT failed for some reason; your parallel process is >> likely to abort. There are many reasons that a parallel process can >> fail during MPI_INIT; some of which are due to configuration or >> environment >> problems. This failure appears to be an internal failure; here's some >> additional information (which may only be relevant to an Open MPI >> developer): >> >> mca_bml_base_open() failed >> --> Returned "Not found" (-13) instead of "Success" (0) >> -------------------------------------------------------------------------- >> [chimera:04271] *** An error occurred in MPI_Init >> [chimera:04271] *** reported by process [1310326785,0] >> [chimera:04271] *** on a NULL communicator >> [chimera:04271] *** Unknown error >> [chimera:04271] *** MPI_ERRORS_ARE_FATAL (processes in this communicator >> will now abort, >> [chimera:04271] *** and potentially your MPI job) >> >> >> >> I am quite new to it, so please inform me if you need additional >> information about the system. >> Any advice is welcomed. >> >> Srijan >> >> >> >> >> >> >> -- >> SRIJAN CHATTERJEE >> > -- SRIJAN CHATTERJEE
