s really strange, but i can't figure out the source!
do you have any other ideas?
thanks
Vittorio
Date: Wed, 25 Feb 2009 20:20:51 -0500
From: Jeff Squyres
Subject: Re: [OMPI users] 3.5 seconds before application launches
To: Open MPI Users
Message-ID: <86d3b246-1866-4b84-b05c-4d13659f8...
figure out the source!
do you have any other ideas?
thanks
Vittorio
List-Post: users@lists.open-mpi.org
Date: Wed, 25 Feb 2009 20:20:51 -0500
From: Jeff Squyres
Subject: Re: [OMPI users] 3.5 seconds before application launches
To: Open MPI Users
Message-ID: <86d3b246-1866-4b84-b05c-4d13659f8...@
Dorian raises a good point.
You might want to try some simple tests of launching non-MPI codes
(e.g., hostname, uptime, etc.) and see how they fare. Those will more
accurately depict OMPI's launching speeds. Getting through MPI_INIT
is another matter (although on 2 nodes, the startup shou
Vittorio wrote:
Hi!
I'm using OpenMPI 1.3 on two nodes connected with Infiniband; i'm using
Gentoo Linux x86_64.
I've noticed that before any application starts there is a variable amount
of time (around 3.5 seconds) in which the terminal just hangs with no output
and then the application starts
