Scyld

[Art Edwards]

Bobby:

Thanks for the reply.

On Wed, May 30, 2001 at 12:13:52AM -0500, Bobby Hunter wrote:
> Art,
> 
> We have a version of MPI/Pro for Scyld that uses a "node" file, much in the
> same way one uses a machine file. You simply list the nodes in a file. i.e.
> 1
> 2
> 3
> 6
> 8
Does your system choose from those nodes not in use but that are in your machine
file?
> and then launch from the head node using
>      'mpirun -np 5 -mach_file <name of node file> myapp'
> You can download a copy at www.mpi-softtech.com/downloads . The versions
> available for download are free for up to 16 way jobs.
> 
> Regards,
> 
> Bobby
> -------------
> 
> Bobby Hunter
> Software Engineer
> MPI Software Technology, Inc.
> 662-320-4300 x. 16
> 
> ----- Original Message -----
> From: "Art Edwards" <edwards at icantbelieveimdoingthis.com>
> To: <beowulf at beowulf.org>
> Cc: "Art Edwards" <edwards at icantbelieveimdoingthis.com>
> Sent: Tuesday, May 29, 2001 10:42 PM
> Subject: Scyld
> 
> 
> > I want to thank Sean Dilda and Keith Undd for pointing to ways to use a
> Scyld
> > cluster without running jobs on the head node and taking advantage of
> local
> > disk. The remedy for the latter is quite straightforward. However, the use
> > of p4pg files is virtually unworkable in a multiuser environment. To avoid
> > crowding the head node, each user would have to query all the nodes to
> find the
> > inactive ones, writea prpg file specifying which nodes they want, and
> deposit it
> > on the node they decide will be node0 for their run. The chances for
> collision
> > are finite. In coming releases of Scyld I hope the -nolocal option is
> activated.
> > This is, to my mind, the cleaner way to get off of the head node.
> >
> > Art Edwards
> > --
> > Arthur H. Edwards
> > 712 Valencia Dr. NE
> > Abq. NM 87108
> >
> > (505) 256-0834
> >
> > _______________________________________________
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> 

Art Edwards
-- 
Arthur H. Edwards
712 Valencia Dr. NE
Abq. NM 87108

(505) 256-0834