Hi All, Thanks a lot for your support. It was a big help. I found a race condition in my code and now the problem is solved.
Regards, Amr On Fri, Feb 26, 2010 at 7:45 AM, Prentice Bisbal <prent...@ias.edu> wrote: > Amr Hassan wrote: > > Thanks alot for your reply, > > > > I'm using blocking Send and Receive. All the clients are sending data > > and the server is receive the messages from the clients with > > MPI_ANY_SOURCE as the sender. Do you think there is a race condition > > near this pattern? > > > > I searched a lot and used totalview but I couldn't detect such case. I > > really appreciate if you send me a link or give an example of a possible > > race condition in that scenario . > > > > Also, when I partition the message into smaller parts (send in sequence > > - all the other clients wait until the send finish) it works fine. is > > that exclude the race condition? > > > > It sounds like, when sending the large messages, you are putting more > data into a buffer than it can hold. When you break the messages up into > smaller sizes, you're not overflowing the buffer. > > Are you using MPI_Pack, by any chance? > > -- > Prentice Bisbal > Linux Software Support Specialist/System Administrator > School of Natural Sciences > Institute for Advanced Study > Princeton, NJ > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users >
