Re: [Boost-mpi] non blocking collectives

Subject: Re: [Boost-mpi] non blocking collectives
From: alainm (alain.miniussi_at_[hidden])
Date: 2016-10-27 07:45:12

Hi,

As for the non blocking collective, there is some work in progress in 
the 'request' branch.
I am simplifying the request architecture as most of the non blocking 
API will be based on it.
Basically, I am implementing a system where each type of request is 
handled by it's specific, dedicated, small handler.

Cheer

Alain

On 21/10/2016 10:11, Lorenz Hübschle-Schneider wrote:
> Hi, Alain,
>
> On 20/10/16 16:15, alainm wrote:
>> There is a branch call globopt with your implementation, if you'd 
>> like to have a
>> look at it.
>> testing looks ok.
>
> cool! I'm not currently working on any MPI projects, so I can't really 
> test it in-depth, but it seems to work fine with some of my old 
> projects (which have quite a bunch of assertions), too. But I guess 
> that's not surprising given that I used my version of that code before :)
>
>> I'm looking if there are other places where we could use the same idea.
>
> I have a somewhat hacky thing that also forgoes serialization under 
> some circumstances (and thus isn't generally safe) in
> > https://github.com/lorenzhs/unsafe_mpi
> but the *_serialize methods should be safe. I implemented them for 
> gatherv and allgatherv, due to the issues with archive sizes you 
> mentioned I skipped (all-)gather without the v.
>
> Cheers,
> Lorenz
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-- 
Alain Miniussi
Pole Génie Logiciel Scientifique
Observatoire de la Côte d'Azur
Blv de l'Observatoire, Nice