Newsgroups: comp.parallel.mpi
From: Christophe Koudella <ckoudell@ens-lyon.fr>
Subject: Re: Help- Overlapping computation and communication
Organization: Ens Lyon
Date: Mon, 06 Apr 1998 19:13:04 +0200
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Message-ID: <35290D20.41C6@ens-lyon.fr>

Hello, 

if your code runs, why should there be anything 
wrong with it ? 

It is not because the MPI standard allows for the 
possibility of doing overlap, that the actual implementation 
of MPI on the architecture you are running effectively 
does so, am I right ?

Christophe


Supriya Uchil wrote:
> 
> Hi,
> 
>         I have been trying to overlap communication and computation using MPI.
> I use the MPI_Isend and MPI_irecv commands but I cant get the stuff to
> overlap. Do I need to know something here? This is the way it goes
> 
>         MPI_irecv
>         compute
>         MPI_Wait
>         MPI_isend
> 
>         I would really appreciate some help on this.
> 
>                                         Thank you
>                                         Supriya