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From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2005-11-14 06:31:44

1.0rc6 is now available; we made some minor fixes in gm, the datatype
engine, and the shared memory btl. I'm not sure if your MX problem
will be fixed, but please give it a whirl. Let us know exactly which
version of MX you are using, too.


On Nov 13, 2005, at 7:53 PM, Jeff Squyres wrote:

> I can't believe I missed that, sorry. :-(
> None of the btl's are capable of doing loopback communication except
> "self." Hence, you really can't run "--mca btl foo" if your app ever
> sends to itself -- you really need to run "--mca btl foo,self" at a
> minimum.
> This is not so much an optimization as it is a software engineering
> decision; we didn't have to include the special send-to-self case in
> any of the other btl components this way (i.e., less code, less complex
> maintenance).
> On Nov 13, 2005, at 7:12 PM, Brian Barrett wrote:
>> One other thing I noticed... You specify -mca btl openib. Try
>> specifying -mca btl openib,self. The self component is used for
>> "send to self" operations. This could be the cause of your failures.

{+} Jeff Squyres
{+} The Open MPI Project