[Dune] [#497] Parallel ISTL solvers broken for OpenMPI

Dune dune at dune-project.org
Fri Feb 13 17:49:56 CET 2009


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A new Flyspray task has been opened.  Details are below. 

User who did this - Markus Blatt (mblatt) 

Attached to Project - Dune
Summary - Parallel ISTL solvers broken for OpenMPI
Task Type - Bug Report
Category - ISTL
Status - New
Assigned To - Markus Blatt
Operating System - Unspecified / All
Severity - Low
Priority - Normal
Reported Version - SVN
Due in Version - Undecided
Due Date - Undecided
Details - It seems like openmpi has problems receiving cascaded derived data types where the inner (custom datatype) has an entry that is not send at the beginning (i.e. a hole). At least on the receiving side the hole is ignored and the data is stored with offset 0.

It works as expected for lam and mpich.

More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=497

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