Re: [Boost-users] Hybrid parallelism, no more + mpi+serialization, many questions

Subject: Re: [Boost-users] Hybrid parallelism, no more + mpi+serialization, many questions
From: Riccardo Murri (riccardo.murri_at_[hidden])
Date: 2010-11-16 16:07:44

On Tue, Nov 16, 2010 at 9:52 PM, Hicham Mouline <hicham_at_[hidden]> wrote:
> MPI uses serialization to serialize user-defined types (you write the
> serialize template function).
> I don't know if MPI lets you choose if you want a binary archive or a
> text/xml archive.

Boost.MPI chooses the archive: its own specialized archive version.

In general, with Boost.Serialization, the serialization functions you
write are independent of the archive: they work equally well with a
text/xml archive than with a binary archive.  Boost.MPI exploits this
and defines its own archive types to translate your classes into
something that (C level) MPI can handle.

You can influence the process to gain some more speed with types
that directly map to MPI types,  see the Boost.MPI manual:
  http://www.boost.org/doc/libs/1_44_0/doc/html/mpi/tutorial.html#mpi.performance_optimizations

Best regards,
Riccardo
--
Riccardo Murri
Grid Computing Competence Centre, http://www.gc3.uzh.ch/
Organisch-Chemisches Institut, University of Zurich
Winterthurerstrasse 190, CH-8057 Zürich (Switzerland)
Tel: [phone]
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