On Jan 9, 2014, at 12:05 PM, Joshua Ladd <josh...@mellanox.com> wrote:

> [Josh] We have a recursive doubling algorithm in progress implemented with 
> PML send/recvs, more accurately , with "RTE_isend/RTE_irecv" functions, 
> which, in the case of OMPI are PML calls.

Does that mean that you'll be blocking (effectively) in the communicator 
destruction function?

I *think* that's ok, but I'm not 100% sure... Brian / George / Nathan: can you 
confirm?

I ask because the standard does not specify what is allowed in attribute 
callback functions -- which, by omission, means that *everything* is allowed, 
but I don't know how well tested code paths are that invoke arbitrary MPI (PML) 
functionality inside communicator teardown.

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/

Reply via email to