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Subject: Re: [OMPI users] could oversubscription clobber an executable?
From: Jeff Squyres (jsquyres_at_[hidden])
Date: 2009-05-18 13:12:34

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There is another option here -- Fortran compilers can aggressively
move code around, particularly when it doesn't know about MPI inter-
function dependencies.

This usually only happens with non-blocking MPI communication
functions, though. Are you using those, perchance?

On May 18, 2009, at 11:51 AM, Iain Bason wrote:

>
> On May 14, 2009, at 3:20 PM, Valmor de Almeida wrote:
>
> > I guess another way to ask is: is it guaranteed that A and B are
> > contiguous?
>
> Yes.
>
> > and the MPI communication correctly sends the data?
>
> I'm not sure what you're asking, but the code looks as though it ought
> to work.
>
> Iain
>
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-- 
Jeff Squyres
Cisco Systems

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