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Subject: Re: [OMPI users] OpenMPI flags conditions
From: Gabriele Fatigati (g.fatigati_at_[hidden])
Date: 2010-07-15 09:27:34


Mm at the momento no,

but i think it's a good idea to insert this feature in future OpenMPI
release :)

We can have parameter set that works well with a precise numbers of procs,
and not with a more large number ( or more small number) . The same for
message size.

Thanks for the quick reply! :D

2010/7/15 Jeff Squyres <jsquyres_at_[hidden]>

> We don't have any kind of logic language like that for the params files.
>
> Got any suggestions / patches?
>
>
> On Jul 15, 2010, at 8:37 AM, Gabriele Fatigati wrote:
>
> > Dear OpenMPI users,
> >
> > is it possible to define some set of parameters for a range number of
> processors and message size in openmpi-mca-params.conf ? For example:
> >
> > if nprocs<256
> >
> > some mca parameters...
> >
> > if nprocs > 256
> >
> > other mca parameters..
> >
> > and the same related to message size?
> >
> > Thanks in advance.
> >
> > --
> > Ing. Gabriele Fatigati
> >
> > Parallel programmer
> >
> > CINECA Systems & Tecnologies Department
> >
> > Supercomputing Group
> >
> > Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
> >
> > www.cineca.it Tel: +39 051 6171722
> >
> > g.fatigati [AT] cineca.it
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> --
> Jeff Squyres
> jsquyres_at_[hidden]
> For corporate legal information go to:
> http://www.cisco.com/web/about/doing_business/legal/cri/
>
>
> _______________________________________________
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>
>

-- 
Ing. Gabriele Fatigati
Parallel programmer
CINECA Systems & Tecnologies Department
Supercomputing Group
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it                    Tel:   +39 051 6171722
g.fatigati [AT] cineca.it