Hello, I am trying to do a very simple task but I've tried everything and I can't
seem to find the answer, can anyone please help me???
I have a program which has in every slave process an array like
int points [10];
and at some point I just fill the elements in the array points, I have
a max_value variable:
int max_value;
and then I try to make a Reduce operation like:
MPI_Reduce(&points, &max_value, 10, MPI_INT, MPI_MAX, 0, MPI_COMM_WORLD);
and then I ask the process 0 to print the value of max_value like this:
if (rank == 0)
printf ("maximum value is: %d ", max_value);
and it does nothing, I don't really know why.
Any help will be greatly appreciated
Thanks a lot in advance.
--
Carlos Lopez Nataren <natorro_at_[hidden]>
Instituto de Fisica, UNAM
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