On Mar 9, 2012, at 1:32 PM, Nathan Hjelm wrote:

> An mpool that is aware of local processes lru's will solve the problem in 
> most cases (all that I have seen)

I agree -- don't let words in my emails make you think otherwise.  I think this 
will fix "most" problems, but undoubtedly, some will still occur.

What's your timeline for having this ready -- should it go to 1.5.5, or 1.6?

More specifically: if it's immanent, and can go to v1.5, then the openib 
message is irrelevant and should not be used (and backed out of the trunk).  If 
it's going to take a little bit, I'm ok leaving the message in v1.5.5 for now.

> but yes, we need to rework the pml to handle the remaining cases. There are 
> two things that need to be changed (from what I can tell):
> 
> 1) allow rget to fallback to send/put depending on the failure (I have 
> fallback on put implemented in my branch-- and in my btl).
> 2) need to devise new criteria on when we should progress the rdma_pending 
> list to avoid deadlock.
> 
> #1 is fairly simple and I haven't given much though to #2.
> 
> -Nathan
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> de...@open-mpi.org
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-- 
Jeff Squyres
jsquy...@cisco.com
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