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.

Subject: Re: [OMPI users] Calculation stuck in MPI
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-03-04 09:39:54

No, it is not obvious, unfortunately. Can you send all the
information listed here:

On Mar 3, 2009, at 5:22 AM, Ondrej Marsalek wrote:

> Dear everyone,
> I have a calculation (the CP2K program) using MPI over Infiniband and
> it is stuck. All processes (16 on 4 nodes) are running, taking 100%
> CPU. Attaching a debugger reveals this (only the end of the stack
> shown here):
> (gdb) backtrace
> #0 0x00002b3460916dbf in btl_openib_component_progress () from
> /home/marsalek/opt/openmpi-1.3-intel/lib/openmpi/
> #1 0x00002b345c22c778 in opal_progress () from
> /home/marsalek/opt/openmpi-1.3-intel/lib/
> #2 0x00002b345bd2d66d in ompi_request_default_wait_any () from
> /home/marsalek/opt/openmpi-1.3-intel/lib/
> #3 0x00002b345bd6021a in PMPI_Waitany () from
> /home/marsalek/opt/openmpi-1.3-intel/lib/
> #4 0x00002b345bae77f1 in pmpi_waitany__ () from
> /home/marsalek/opt/openmpi-1.3-intel/lib/
> It has survived a restart of the IB switch, unlike "healthy" runs. My
> question is - is it obvious at what level the problem is? IB, Open
> MPI, application?I would be glad to provide detailed information, if
> anyone was willing to help. I want to work on this, but unfortunately
> I am not sure where to begin.
> Best regards,
> Ondrej Marsalek
> _______________________________________________
> users mailing list
> users_at_[hidden]

Jeff Squyres
Cisco Systems