[mpich-discuss] Memory leak comparing communicators

Mon Apr 28 23:28:17 CDT 2014

I'm not quite sure, not for the bulk of the work, but maybe in its parallel libraries (e.g. scalapack). 

>From the trace, at least 'if (comm_ptr1->comm_kind == MPID_INTRACOMM) ' seems true.

It does use cartesian communicators in these compares, but this didn't trigger it in the testcase.

Joost

On 04/28/2014 02:34 PM, VandeVondele Joost wrote:
> Unfortunately, the leak doesn't reproduce with some testcases I tried to construct. I'm not sure what makes the real application different from the testcases, so I don't have much more info than the backtraces.
>

is cp2k using intercommunicators?

==rob

--
Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA
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