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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.



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
>> fail?
>> Cheers,
>> Lorenz
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>> Boost-mpi_at_[hidden]
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Alain Miniussi
Pole Génie Logiciel Scientifique
Observatoire de la Côte d'Azur
Blv de l'Observatoire, Nice

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