[mpich-discuss] MPICH error
wbland at mcs.anl.gov
Fri Nov 29 06:17:26 CST 2013
We need to be able to see you entire send and receive calls, but at a first pass, it's probably that he sizes of your send and receive don't match. Send us a minimum working example (not your entire code).
> On Nov 29, 2013, at 1:56 AM, Soheil Hooshdaran <shooshdaran577 at gmail.com> wrote:
> After executing MPI_Send() for the first time in the root process, my program blocks.
> int the root process, I have:
> cout << "executing send for the " << i-1 << "th time" << endl;
> MPI_Send(&A[i-1], n*m/iWorldSize, MPI_INT, j, itag, MPI_COMM_WORLD);
> cout << "executed send for the " << i << "th time" << endl;
> }//end while
> and in the slave processes I have
> MPI_Status status;
> int *buffer = new int[m*(n/iWorldSize)];
> cout << "\n\n\n**********Executing receive*******" << endl;
> MPI_Recv(&buffer, m*(n/iWorld
> where did I go wrong?
> Thank you
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