On Jul 14, 2011, at 5:50 PM, dave fournier wrote: > I have a master-slave setup. I have noticed that when I send a message from > the master to the slave > processes using MPI_Isend it never gets sent until I encounter an MPI_recv > in the master process.
How are you testing that? > As a result rhe slave processes are wasting time waiting for the message. Er... I'm not sure I can parse this. You said that the message doesn't go until the slave calls MPI_Recv. So I don't quite understand how the slave is wasting time...? > If I use MPI_Send > instead of MPI_Isend all works fine. I don't understand what is going on > here. Define "fine" -- can you be a bit more precise about the exact behavior that you want to see, and the behavior that you are seeing, and the difference that MPI_SEND makes vs. MPI_ISEND? -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
