LAM/MPI logo

LAM/MPI General User's Mailing List Archives

  |   Home   |   Download   |   Documentation   |   FAQ   |   all just in this list

From: Håvard Berland (berland+lam_at_[hidden])
Date: 2002-09-28 08:05:39


On Sat, 28 Sep 2002, Manish Chablani wrote:
| Here is what LAM: MPI_Gatherv does.
|
| If rank != root then it does a MPI_Send and returns.
| If rank == root, it does a MPI_Recv from each rank !=root serially.

Is there any special reason not to do a non-blocking receive?
Intuitively it should speed up the gathering process, but the speedup
gained may be negligible?

-- 
Håvard Berland
berland_at_[hidden]
http://www.math.ntnu.no/~berland
_______________________________________________
This list is archived at http://www.lam-mpi.org/MailArchives/lam/