[Mpi-forum] Fwd: MPI_Pack max buffer size
jhammond at alcf.anl.gov
Wed Oct 3 08:58:22 CDT 2012
Unlike many other cases where communicating >2 GB can be done with a
datatype workaround, MPI_PACK/UNPACK seem particularly vulnerable to
the 32-bit integer representation issue.
I don't know whether or not this has been discussed before (and
apologize if my message is redundant). Is there a proposal for
---------- Forwarded message ----------
From: Christoph Sprenger <csprenger at wetafx.co.nz>
Date: Wed, Oct 3, 2012 at 3:10 AM
Subject: [mpich-discuss] MPI_Pack max buffer size
To: mpich-discuss at mcs.anl.gov
just wanted to double check if there is a way to Pack/Unpack bigger
char buffers than numeric_limits<int>::max() without tokenizing the
message into multiple chunks ?
seems like one of my messages is hitting these bounds unfortunately.
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