Re: [Boost-mpi] non blocking collectives

Subject: Re: [Boost-mpi] non blocking collectives
From: alainm (alain.miniussi_at_[hidden])
Date: 2016-10-20 10:15:47

Hi Lorenz,

There is a branch call globopt with your implementation, if you'd like 
to have a look at it.
testing looks ok.
I'm looking if there are other places where we could use the same idea.

Cheers

Alain

On 20/10/2016 10:40, alainm wrote:
>
> Well, since the required buffer will have the same size on every 
> process, this is a very good question indeed.
> I just trusted the comments on that one.
> I'll have a closer look shortly (or maybe someone with better 
> knowledge can answer that one) but you're right, we can probably get 
> rid of point to point on that one.
> The only draw back I can think of is that the communication of the 
> size will act as a barrier. Not sure if this is a real world problem 
> though.
>
> Cheers
>
> Alain
>
>
> 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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>> Boost-mpi_at_[hidden]
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>
> -- 
>
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-- 
Alain Miniussi
Pole Génie Logiciel Scientifique
Observatoire de la Côte d'Azur
Blv de l'Observatoire, Nice