Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

From: smairal_at_[hidden]
Date: 2007-06-05 18:52:47

I am trying a program in which I have 2 MPI nodes and each MPI node has
2 threads:

Main node-thread Receive Thread
----------------- ----------------

    MPI_Send(); MPI_Recv();
    goto LOOP; goto LOOP;


The thread-barrier ensures that the 2 threads complete the previous
iteration before moving ahead with this one.

I get the following error SOMETIMES (while sometimes the program runs
*** An error occurred in MPI_Recv
*** on communicator MPI_COMM_WORLD
*** MPI_ERR_TRUNCATE: message truncated
*** MPI_ERRORS_ARE_FATAL (goodbye)

Somewhere I read that MPI_THREAD_MULTIPLE is not properly tested with
OpenMPI. Can someone tell me whether I am making some mistake or is
there any bug with MPI_THREAD_MULTIPLE?

-Thanks and Regards,