Newsgroups: comp.parallel.mpi
From: rysanek@rhino.cis.vutbr.cz (Rysanek Martin)
Subject: Mpi type signature
Organization: Technical University of Brno, Czech Republic
Date: 13 Dec 1994 15:56:46 +0100
Message-ID: <3ckcne$mov@rhino.cis.vutbr.cz>


I don't understand one very important thing from materials about MPI. I
would like to exchange data among processes, which are for simplicity on the
same HW platform, but which are compiled with different data alignment (i.e.
different displacement of elements in structures).  I will create type
signatures of both structure with different displacement.

Is the first signature compatible with the second one in the send and
receive operations?
Or
Can I send strucuture using the first type signature from the first process
and receive it usign the second type signature in the second process?
Or
Which order of steps is necessary to do to ahieve this result?

Thanks

Martin Rysanek
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Technical University of Brno, FEI VUT Brno   E-mail:rysanek@dcse.fee.vutbr.cz
Dept. of Computing Science and Engineering      Tel:    (+42-5) 7275-280,-111
Bozetechova 2, Brno 612 66, Czech Republic      Fax:    (+42-5)   41 21 11 41

