[Dune] [#668] ALUgrid memory leak?

[Dune]

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User who did this - Patrick Leidenberger (leidenberger) 

Attached to Project - Dune
Summary - ALUgrid memory leak?
Task Type - Bug Report
Category - Alu3D
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Medium
Priority - Normal
Reported Version - SVN
Due in Version - Undecided
Due Date - Undecided
Details - Dear ALU developers,

We observe an increase of memory in our code using ALUgrid 3d in parallel. If we monitor the memory consumption of our time domain code, we observe that:
-the memory increases only if we run the code on more than 1 core
-the memory increase for rank=0 is 0
-the memory increase in ~128 kB steps
-it occurs after an unpredictable number of timesteps
-same behaviour for OpenMPI and MPICH2

We try to locate the function as good as possible and found in file:
ALUGrid-1.14/src/duneinterface/gitter_dune_pll_impl.cc
line 849:
inner.first->EdgeData2os  (sendBuff, edgeData  , inner.second );

We tested it on Ubuntu 9.04 and 9.10 with the default gcc and OpenMPI and MPICH2 implementations.

It would be nice if somebody has an idea what's going wrong there.

Have a nice day
Patrick

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http://www.dune-project.org/flyspray/index.php?do=details&task_id=668

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