Justin and all,
the root cause is indeed a bug i fixed in
https://github.com/open-mpi/ompi/pull/2135
i also had this patch applied to home-brew, so if you re-install
open-mpi, you should be fine.
Cheers,
Gilles
for those who want to know more
- Open MPI uses two Unix sockets, one by oob/usock a
Gilles;
Thanks for your response. The network setup I have here is 20
computers connected over a 1 gig Ethernet lan. The computers are nehalems with
8 cores per. These are 64 bit machines. Not a high performance setup but this
is simply a research bed. I am using a host file most
Rick,
You must use the same value for root on all the tasks of the communicator.
So the 4th parameter of MPI_Bcast should be hard-coded 0 instead of rank.
Fwiw, with this test program
If you MPI_Bcast a "small" message, then all your tasks send a message
(that is never received) in eager mode, so
Gilles;
It works now. Thanks for pointing that out!
Rick
From: users [mailto:users-boun...@lists.open-mpi.org] On Behalf Of Gilles
Gouaillardet
Sent: Friday, September 30, 2016 8:55 AM
To: Open MPI Users
Subject: Re: [OMPI users] openmpi 2.1 large messages
Rick,
You must use th
Hello everyone,I'm trying to investigate the paralellization of an algorithm
with OpenMPI on a distributed computers' network. In the network there are one
Master PC and 24 Computing Node PCs. I'm quite a newbie in this field. However
i achieved installing the OpenMPI and compiling and running m
Thank you, using the default $TMPDIR works now.
On Fri, Sep 30, 2016 at 7:32 AM, Gilles Gouaillardet <
gilles.gouaillar...@gmail.com> wrote:
> Justin and all,
>
> the root cause is indeed a bug i fixed in
> https://github.com/open-mpi/ompi/pull/2135
> i also had this patch applied to home-brew, s
