Re: [Boost-mpi] non blocking collectives

Subject: Re: [Boost-mpi] non blocking collectives
From: alainm (alain.miniussi_at_[hidden])
Date: 2016-10-20 13:24:44

I just did gather in the same spirit, the slight difference is that the 
size of the archive are not homogeneous.
So, although it is called gather, it is implemented through MPI_Gatherv.

Which raises another issue, it is likely that the same interface could 
serve the "v" version of the function, thus simplifying the API. We only 
need to communicate the numbers of array slots along with the size of 
the archives.

Cheers

On 20/10/2016 09:17, Lorenz Hübschle-Schneider wrote:
> Hi everyone,
>
> On 19/10/16 10:00, alainm wrote:
>> b) Not so trivial calls need to go though serialization, and 
>> manipulate the
>> archive using  point to point communication
>
> I don't understand why archives would need to be communicated using 
> point-to-point communication. I've posted this before with no 
> response, but under which circumstances would something like
>> https://gist.github.com/lorenzhs/79dab54552fd1f9381da
> fail?
>
> Cheers,
> Lorenz
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-- 
Alain Miniussi
Pole Génie Logiciel Scientifique
Observatoire de la Côte d'Azur
Blv de l'Observatoire, Nice