Newsgroups: comp.parallel.pvm
From: shgs@my-dejanews.com
Subject: Re: PVM'd processes on one machine?
Organization: Deja News - The Leader in Internet Discussion
Date: Tue, 26 May 1998 17:36:35 GMT
Message-ID: <6keuj4$a45$1@nnrp1.dejanews.com>

Hi Neal,

   About the use of PVM on a multiprocessor machine, I believe you don't need
to start more than one pvmd to make use of the extra processors, just send
more than one task to the pvmd running on your local computer and leave the
parallelization up to your operating system. I've never used PVM on a
multiprocessor machine so I don't know if PVM can take advantage of this kind
of architecture besides being scheduled by the native OS. Maybe if you could
interfere with the scheduling algorithm, you'd probably lower the overall
performance of the machine.

Just my two cents,
Sergio Sousa

In article <356A0E19.66C4091D@erols.com>,
  "Neal C. Pitts" <niteeyes@erols.com> wrote:
>
> Hopefully someone can help me with this as I am a PVM3 newbie. :)
>
> I'm trying to run CHARMM through PVM3 on one machine with multiple
> processors.  Seeing how PVM starts up a separate executable per
> requested instance, I was hoping I could take advantage of the four
> processors I have on my Origin 200 and not have to do any networking
> between boxes.  I haven't been able to get this to work as PVMd doesn't
> want to start more than one process per machine.  I don't have root
> access to try and add some virtual interfaces to trick PVM.  Can I do
> what I want with PVM3?  Thanks in advance. :)  Reply by email if
> possible.
>
> --
> Neal Pitts
> |niteeyes@erols.com || niteeyes@3sheep.com || neal@digex.net|
>
>


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