Re: [Boost-users] [mpi] broadcast performance

Subject: Re: [Boost-users] [mpi] broadcast performance
From: Brian Budge (brian.budge_at_[hidden])
Date: 2012-09-05 23:50:57

Okay.  I can do that.  I was just wondering if there was a trick to
make it happen under the hood.  I'm curious as to why Bcast doesn't
get called by boost::mpi::broadcast for non-trivial types.

Thanks,
  Brian

On Wed, Sep 5, 2012 at 7:00 PM, Júlio Hoffimann
<julio.hoffimann_at_[hidden]> wrote:
> Hi Brian,
>
> If i understood correctly, you're actually doing something like:
>
> std::vector<char> gigaVec;
> MPI_Bcast(blah, blah, ..., &gigaVec[0])
>
>
> and want to replace that by boost::mpi::broadcast, is that correct?
>
> Just do it the same way, if the type of the container is a MPI type, you're
> guaranteed that the underlying MPI implementation will be called.
>
> Regards,
> Júlio.
>
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