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Steady increase in memory use when running createMdsMesh #397

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Thomas-Ulrich opened this issue Oct 10, 2023 · 1 comment
Open

Steady increase in memory use when running createMdsMesh #397

Thomas-Ulrich opened this issue Oct 10, 2023 · 1 comment

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@Thomas-Ulrich
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Hi,

I'm trying to generate large meshes (e.g. the one that I just generated had 657117285 tetra cells) with SimModeler.
The SimModeler parallel generation uses ~150Gb of memory for 10 ranks.
But when I then convert the mesh using this function:
https://github.com/SeisSol/PUMGen/blob/master/src/input/SimModSuite.h#L183C19-L183C32
I can see (with htop) that the used memory steadily increases until reaching 880Gb.
Could it be a memory leak?
I'm using pumi@2.2.8

Thanks in advance,
Thomas.

@cwsmith
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cwsmith commented Oct 13, 2023

Sounds like it. Thank you for reporting. We'll run valgrind on a smaller mesh and see what it reports.

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