We can't help you with your coding problem without seeing your code.
Jack Bryan wrote: > Thanks, > I have used "cout" in c++ to print the values of data. > > The sender sends correct data to correct receiver. > > But, receiver gets wrong data from correct sender. > > why ? > > thanks > > Nov. 5 2010 > >> Date: Fri, 5 Nov 2010 08:54:22 -0400 >> From: prent...@ias.edu >> To: us...@open-mpi.org >> Subject: Re: [OMPI users] Open MPI data transfer error >> >> Jack Bryan wrote: >> > >> > Hi, >> > >> > In my Open MPI program, one master sends data to 3 workers. >> > >> > Two workers can receive their data. >> > >> > But, the third worker can not get their data. >> > >> > Before sending data, the master sends a head information to each worker >> > receiver >> > so that each worker knows what the following data package is. (such as >> > length, package tag). >> > >> > The third worker can get its head information message from master but >> > cannot get its correct >> > data package. >> > >> > It got the data that should be received by first worker, which get its >> > correct data. >> > >> >> >> Jack, >> >> Providing the relevant sections of code here would be very helpful. >> >> <inside joke> >> I would tell you to add some printf statements to your code to see what >> data is stored in your variables on the master before it sends them to >> each node, but Jeff Squyres and I agreed to disagree in a civil manner >> on that debugging technique earlier this week, and I'd hate to re-open >> those old wounds by suggesting that technique here. ;) >> </inside joke> >> >> -- >> Prentice
