When you use MPI_ANY_SOURCE in a receive, the rank of the actual sender is passed back to you in the status.MPI_SOURCE.
On Jul 14, 2011, at 7:55 PM, Mudassar Majeed wrote: > Hello people, > I am trapped in the following problem plz help me. > Suppose a process A sends a message to process B. The process B will receive > the message with MPI_Recv with MPI_ANY_SOURCE in the source argument. Let say > process B does not know that A is the sender. But I want B to receive message > from process A (the one who actually sends the message to process B). But if > I use MPI_ANY_SOURCE, then any message from any source is captured by process > B (let say there are other processes sending messages). Instead of > MPI_ANY_SOURCE I cannot use A in the source argument as B does not know about > the sender. What should I do in this situation ? > > regards, > Mudassar Majeed > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users -- Jeff Squyres jsquy...@cisco.com For corporate legal information go to: http://www.cisco.com/web/about/doing_business/legal/cri/
