Re: [Boost-users] mpi: sending/receiving different types

Subject: Re: [Boost-users] mpi: sending/receiving different types
From: Brian Budge (brian.budge_at_[hidden])
Date: 2010-12-03 11:33:40

Hi Hicham -

You should look into probe().  I the result of a probe will give you a
valid MPI_Status, which contains the tag and source.  You can use this
tag to determine how you can construct an appropriate recv().

  Brian

On Thu, Dec 2, 2010 at 11:49 PM, Hicham Mouline <hicham_at_[hidden]> wrote:
> Hi,
>
> I will be sending  messages of different kinds.
>
> The destination will not know what kind of message it is trying to receive.
>
> Imagine I send many messages of the same kind. I understand the tag in
> send/receive will be different in each case? Or can I send 2 messages of the
> same king with the same tag? That way the receiver can use the tag to
> identify what it is it is receiving. If so, is the receiver supposed to use
> the recv() function with different template argument T until the call
> succeeds ?
>
> Or should I always use packed_<oi>archive?
>
>
>
> rds,
>
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