On Nov 2, 2010, at 10:11 AM,
wrote:
> Yes, I am calling MPI_Init_thread() with MPI_THREAD_MULTIPLE. And I have
> enabled thread and mpi_threads while configuring OpenMPI. BTW, I am using
> OpenMPI 1.4.2.
>
> It will be helpful to know if this is a design constraint or some
> implementation
, PMP
Senior Technical Architect
Wipro Technologies
Ph: 972 765 8093
ananda.mu...@wipro.com
Subject: Re: [OMPI devel] Question about barrier()
From: Jeff Squyres (jsquyres_at_[hidden])
List-Post: devel@lists.open-mpi.org
Date: 2010-11-02 09:53:53
* Previous message: Jeff Squyres: &qu
I'd have to check to be sure, but I'm pretty sure that it's because we've
activated lots of locks that aren't there in single-threaded mode.
I say this because I *assume* you mean that when you use MPI_INIT_THREAD, you
mean that you're actually calling it with MPI_THREAD_MULTIPLE. Calling
MPI_
Hi
I have the following small program where the rank-0 process does sleep
and then all the processes perform barrier().
#include "mpi.h"
#include
int main(int argc, char *argv[])
{
int rank, nprocs;
MPI_Init(&argc,&argv);
MPI_Comm_size(MPI_COMM_WORLD,&nprocs);
MPI_Com
