Hello everyone, While going through collective algorithms, I
came across preprocessor directive MPI_IN_PLACE which is (void *)1. Its always
being compared against source buffer(sbuf). My question is when MPI_IN_PLACE ==
sbuf condition would be true. As far as i understand, sbuf is the address of
source buffer, which every node has to transfer to remaining nodes based on
recursive doubling or say bruck algo. And it can never be equal to (void *)1.
Any help is appreciated.RegardsNeeraj
