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Subject: Re: [OMPI users] orte in persistent mode
From: Ralph H Castain (rhc_at_[hidden])
Date: 2008-01-02 08:48:32


Hi Neeraj

No, we still don't support having a persistent set of daemons acting as some
kind of "virtual machine" like LAM/MPI did. We at one time had talked about
adding it. However, our most recent efforts have actually taken us away from
supporting that mode of operation. As a result, I very much doubt we will
support it anytime in the foreseeable future.

Just to clarify: this isn't a "problem" with the existing system. It was a
design decision not to support that mode of operation. We had considered
revising that decision, but other considerations have led us further from a
design that would support it. It seems doubtful that we will do so anytime
soon.

Ralph

On 12/31/07 1:26 AM, "Neeraj Chourasia" <neeraj_ch1_at_[hidden]> wrote:

> Dear All,
>
> I am wondering if ORTE can be run in persistent mode. It has
> already been raised in Mailing list (
> http://www.open-mpi.org/community/lists/users/2006/03/0939.php)
> , where it was said that the problem is still there. I just want to
> know, if its fixed or being fixed ?
>
> Reason, why i am looking at is in large clusters, mpirun takes lot
> of time starting orted (by ssh) on remote nodes. If orte is already
> running, hopefully we can save considerable time.
> Any comments is appreciated.
>
> -Neeraj
>
>
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