On Aug 11, 2010, at 9:54 AM, Jeff Squyres wrote: > (I'll say that OMPI's ALLGATHER algorithm is probably not well optimized for > massive data transfers like you describe)
Wrong wrong wrong -- I should have checked the code before sending. I made the incorrect assumption that OMPI still only had a trivial gather implementation. It does not; there are several different algorithms that may be used for ALLGATHER (as determined on the fly at run time, blah, blah, blah). -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/