On Sep 22, 2010, at 1:53 PM, Gabriele Fatigati wrote: > Thanks Jeff, > > and.. what about RDMA? It works only with point-to-point or also with > collectives?
When collectives use the point-to-point sends (e.g., they effectively invoke MPI_SEND as part of MPI_BCAST, for example), that will do all the same things that MPI_SEND does: eager sends for short messages, striping across multiple devices, using RDMA when appropriate, etc. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
