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From: Daniel Qarras <dqarras@yahoo.com>
To: gdb@sourceware.org, Tom Tromey <tromey@redhat.com>,
	  Pedro Alves <pedro@codesourcery.com>
Cc: "Sérgio Durigan Júnior" <sergiodj@linux.vnet.ibm.com>
Subject: Re: MPI debugging support in GDB?
Date: Fri, 16 Oct 2009 20:34:00 -0000	[thread overview]
Message-ID: <110050.35015.qm@web36805.mail.mud.yahoo.com> (raw)
In-Reply-To: <200910141556.54381.pedro@codesourcery.com>

> > If you know, could you say something about what kind of support would be
> > needed?  Even that would help a bit, I think.
> 
> I think that for full and transparent support, we'd need to start with
> being able to debug multiple (remote) targets simultaneously?  GDB can't
> do that currently --- it can only debug multiple processes running on
> the same host.

Yes, I think this is a hard requirement. I'm also pretty sure that supporting code would be needed for each MPI library implementation (their might have something comparable to libthread_db/nptl_db). OpenMPI is the most prominent open source MPI implementation today, its page might give some additional clues:

http://www.open-mpi.org/faq/?category=debugging

Thanks!






  reply	other threads:[~2009-10-16  6:37 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-06 20:39 Daniel Qarras
2009-10-13 20:52 ` Tom Tromey
2009-10-14  4:28   ` Sérgio Durigan Júnior
2009-10-14 14:40     ` Tom Tromey
2009-10-14 14:57       ` Pedro Alves
2009-10-16 20:34         ` Daniel Qarras [this message]
  -- strict thread matches above, loose matches on Subject: below --
2007-09-29 15:00 Daniel Qarras
2007-09-29 15:57 ` Daniel Jacobowitz

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