Hi Joseph What OS are you using when running the test?
Could you try running with export OMPI_mca_osc=^pt2pt and export OMPI_mca_osc_base_verbose=10 This error message was put in to this OMPI release because this part of the code has known problems when used multi threaded. Joseph Schuchart <schuch...@hlrs.de> schrieb am Sa. 18. Feb. 2017 um 04:02: > All, > > I am seeing a fatal error with OpenMPI 2.0.2 if requesting support for > MPI_THREAD_MULTIPLE and afterwards creating a window using > MPI_Win_create. I am attaching a small reproducer. The output I get is > the following: > > ``` > MPI_THREAD_MULTIPLE supported: yes > MPI_THREAD_MULTIPLE supported: yes > MPI_THREAD_MULTIPLE supported: yes > MPI_THREAD_MULTIPLE supported: yes > -------------------------------------------------------------------------- > The OSC pt2pt component does not support MPI_THREAD_MULTIPLE in this > release. > Workarounds are to run on a single node, or to use a system with an RDMA > capable network such as Infiniband. > -------------------------------------------------------------------------- > [beryl:10705] *** An error occurred in MPI_Win_create > [beryl:10705] *** reported by process [2149974017,2] > [beryl:10705] *** on communicator MPI_COMM_WORLD > [beryl:10705] *** MPI_ERR_WIN: invalid window > [beryl:10705] *** MPI_ERRORS_ARE_FATAL (processes in this communicator > will now abort, > [beryl:10705] *** and potentially your MPI job) > [beryl:10698] 3 more processes have sent help message help-osc-pt2pt.txt > / mpi-thread-multiple-not-supported > [beryl:10698] Set MCA parameter "orte_base_help_aggregate" to 0 to see > all help / error messages > [beryl:10698] 3 more processes have sent help message > help-mpi-errors.txt / mpi_errors_are_fatal > ``` > > I am running on a single node (my laptop). Both OpenMPI and the > application were compiled using GCC 5.3.0. Naturally, there is no > support for Infiniband available. Should I signal OpenMPI that I am > indeed running on a single node? If so, how can I do that? Can't this be > detected by OpenMPI automatically? The test succeeds if I only request > MPI_THREAD_SINGLE. > > OpenMPI 2.0.2 has been configured using only > --enable-mpi-thread-multiple and --prefix configure parameters. I am > attaching the output of ompi_info. > > Please let me know if you need any additional information. > > Cheers, > Joseph > > -- > Dipl.-Inf. Joseph Schuchart > High Performance Computing Center Stuttgart (HLRS) > Nobelstr. 19 > D-70569 Stuttgart > > Tel.: +49(0)711-68565890 > Fax: +49(0)711-6856832 > E-Mail: schuch...@hlrs.de > > _______________________________________________ > users mailing list > users@lists.open-mpi.org > https://rfd.newmexicoconsortium.org/mailman/listinfo/users
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