[OMPI devel] [ofa-general] OpenMPI and RDMA-CM

Steve Wise swise at opengridcomputing.com
Tue May 8 06:47:09 PDT 2007


On Mon, 2007-05-07 at 20:39 -0400, Jeff Squyres wrote:
> On May 7, 2007, at 6:52 PM, Steve Wise wrote:
> 
> > Also, there appears to be a DAPL BTL in OMPI.  Is this BTL complete  
> > and
> > enabled for the ofed-1.2 udapl library?
> 
> Yes, it is complete and is well-tested in Solaris.
> 
> It is not well tested in Linux/OFED (we've been concentrating on the  
> verbs interface on the OFED side of things -- the "openib" BTL [we  
> never renamed it when OpenIB changed names to OpenFabrics]).  In  
> fact, we've had scattered reports of it not working properly in Linux/ 
> OFED, but those could well have been pilot error (i.e., me not trying  
> to run properly -- I know just about zilch about udapl).
> 

The reason I'm asking is twofold:  

1) this can get OMPI running on iwarp devices today if it works.

2) the udapl code can be a model for the rdma-cm piece, since the two
are similary (client / server connection set, ipaddr/port based, etc)...

I'll try it out on T3.


Steve.





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