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Re: Parallel octave ??
From: |
Javier Fernández |
Subject: |
Re: Parallel octave ?? |
Date: |
Fri, 05 Sep 2008 10:03:08 +0200 |
User-agent: |
Thunderbird 2.0.0.6 (Windows/20070728) |
Sangamesh B wrote:
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Today's Topics:
5. Re: Parallel octave ?? (Sangamesh B)
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Subject:
Re: Parallel octave ??
From:
"Sangamesh B" <address@hidden>
Thanks for your response,
Still I'm not getting LAM-MPI working. Once its done I'll install MPITB.
MPITB should also work with Open-MPI, that's an option too. To be used
with MPITB they should be compiled for dynamic libraries (shared objects
.so).
I guess octave can not be run using mpirun.
yes it can :-)
So on octave command prompt, some MPI functions have to be used.
That's also an option. I find MPI_Comm_spawn easier to use with LAM/MPI
. The LLAMAS (the old LAM Team) made a very convenient MPI_Info item
called "lam_spawn_sched_round_robin" with which you can
MPI_Comm_spawn(..., info) and have the children started on the nodes you
want (as long as they were lambooted together with your spawning node).
On the other hand, I found mpirun easier to use with Open-MPI, since no
daemon has to be previously started (no equivalent to lamboot is
required in OMPI). Recently there was a question on spawning in their
mailing list, but I'm not sure they're talking on this same issue
http://www.open-mpi.org/community/lists/users/2008/08/index.php
http://www.open-mpi.org/community/lists/users/2008/07/6211.php
http://www.open-mpi.org/community/lists/users/2008/08/6256.php
The "subject" matches the point, anyways. I suppose I miss the
"spawn_sched" info tag I was used to in LAM :-)
Thank you,
Sangamesh
You're welcome
On Wed, Sep 3, 2008 at 12:45 PM, Michael Creel <address@hidden
<mailto:address@hidden>> wrote:
MPITB works fine with the latest Octave 3.0.x. It's available ready to
run on the PelicanHPC live CD, with some examples, if you would like
to try it. I haven't tried MPITB with Octave 3.1.x yet.
M.
>
> I don't know if it will be a simple installation, but the author is
> still active.
>
> Thomas
Thank you all :-)
-javier