I'm new to OPEN MPI and have a question in regards to the error I'm seeing after compiling the OFED stack to facilitate RDMA and OpenMPI and specified the install path of OFED stack and installed Intel MPI Benchmark. I was able to run tcp but when running openib we could not run succesfully we are see the error below: OFED version 3.5
[root@dhcp-8-168 imb]# mpirun --mca btl openib,sm,self --mca btl_openib_cpc_include rdmacm --mca btl_openib_if_include p2p1 --mca btl_openib_verbose 2 -np 2 -hostfile hosts ./3.2.4/src/IMB-MPI1 -npmin 2 -iter 10 PingPong -------------------------------------------------------------------------- WARNING: One or more nonexistent OpenFabrics devices/ports were specified: Host: dhcp-8-168 MCA parameter: mca_btl_if_include Nonexistent entities: p2p1 These entities will be ignored. You can disable this warning by setting the btl_openib_warn_nonexistent_if MCA parameter to 0. -------------------------------------------------------------------------- -------------------------------------------------------------------------- At least one pair of MPI processes are unable to reach each other for MPI communications. This means that no Open MPI device has indicated that it can be used to communicate between these processes. This is an error; Open MPI requires that all MPI processes be able to reach each other. This error can sometimes be the result of forgetting to specify the "self" BTL. Process 1 ([[60771,1],0]) is on host: dhcp-8-168 Process 2 ([[60771,1],1]) is on host: 169 BTLs attempted: self sm Your MPI job is now going to abort; sorry. -------------------------------------------------------------------------- -------------------------------------------------------------------------- MPI_INIT has failed because at least one MPI process is unreachable from another. This *usually* means that an underlying communication plugin -- such as a BTL or an MTL -- has either not loaded or not allowed itself to be used. Your MPI job will now abort. You may wish to try to narrow down the problem; * Check the output of ompi_info to see which BTL/MTL plugins are available. * Run your application with MPI_THREAD_SINGLE. * Set the MCA parameter btl_base_verbose to 100 (or mtl_base_verbose, if using MTL-based communications) to see exactly which communication plugins were considered and/or discarded. -------------------------------------------------------------------------- [dhcp-8-168:3503] *** An error occurred in MPI_Init [dhcp-8-168:3503] *** on a NULL communicator [dhcp-8-168:3503] *** Unknown error [dhcp-8-168:3503] *** MPI_ERRORS_ARE_FATAL: your MPI job will now abort -------------------------------------------------------------------------- An MPI process is aborting at a time when it cannot guarantee that all of its peer processes in the job will be killed properly. You should double check that everything has shut down cleanly. Reason: Before MPI_INIT completed Local host: dhcp-8-168 PID: 3503 -------------------------------------------------------------------------- -------------------------------------------------------------------------- mpirun has exited due to process rank 0 with PID 3503 on node dhcp-8-168 exiting improperly. There are two reasons this could occur: 1. this process did not call "init" before exiting, but others in the job did. This can cause a job to hang indefinitely while it waits for all processes to call "init". By rule, if one process calls "init", then ALL processes must call "init" prior to termination. 2. this process called "init", but exited without calling "finalize". By rule, all processes that call "init" MUST call "finalize" prior to exiting or it will be considered an "abnormal termination" This may have caused other processes in the application to be terminated by signals sent by mpirun (as reported here). -------------------------------------------------------------------------- [dhcp-8-168:03501] 1 more process has sent help message help-mpi-btl-openib.txt / nonexistent port [dhcp-8-168:03501] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages [dhcp-8-168:03501] 1 more process has sent help message help-mca-bml-r2.txt / unreachable proc [dhcp-8-168:03501] 1 more process has sent help message help-mpi-runtime / mpi_init:startup:pml-add-procs-fail [dhcp-8-168:03501] 1 more process has sent help message help-mpi-errors.txt / mpi_errors_are_fatal unknown handle [dhcp-8-168:03501] 1 more process has sent help message help-mpi-runtime.txt / ompi mpi abort:cannot guarantee all killed --Tester
