On Sep 13, 2011, at 8:41 AM, devendra rai wrote: > Also, I read the definition of MPI_Ssend(...) that you sent, but then it does > not explain why both MPI_Ssend(...) and MPI_Recv(...) are blocked seemingly > forever.
Oh, they're blocked *forever*! Sorry; I didn't get that from your prior description -- I thought you just wanted non-blocking instead of blocking. > I notice that such a block happens when MPI_Recv(...) is posted before > MPI_Ssend(...). It doesn't matter if the receive is posted before the send or the other way around. When blocking sends/receives block forever, it usually means that there's a mismatch in the communicator, tag, or src/dest arguments between the two. -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
