Hi, We would like to request a warning/error message to be printed whenever a component (like "openib") is specified, but not actually loaded.
Our case: Running a job via "tcp" over IB went OK, trying to use "openib" failed. It turned out that while compiling the "openib" module wasn't made (missing path), so OpenMPI croaked when trying to access it. This was the error that was of little help to us in tracing the problem: -------------------------------------------------------------------------- Process 0.1.7 is unable to reach 0.1.0 for MPI communication. If you specified the use of a BTL component, you may have forgotten a component (such as "self") in the list of usable components. -------------------------------------------------------------------------- -------------------------------------------------------------------------- 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): PML add procs failed --> Returned "Unreachable" (-12) instead of "Success" (0) -------------------------------------------------------------------------- *** An error occurred in MPI_Init *** before MPI was initialized *** MPI_ERRORS_ARE_FATAL (goodbye) Unfortunately we can't provide a patch and would be glad if someone could implement and include this. Thanks for your attention, best regards, Bernhard HERMANN init.at informationstechnologie GmbH. Mariahilfer Str. 61/1/10 1060 Wien/Vienna Austria - EU Tel: +43 1 522 53 77 - 35 http://www.init.at herm...@init.at
