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Zoltan: double communicator free in hierarchical partitioning #12730

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lkotipal opened this issue Feb 9, 2024 · 0 comments
Open

Zoltan: double communicator free in hierarchical partitioning #12730

lkotipal opened this issue Feb 9, 2024 · 0 comments
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@egboman
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pkg: Zoltan type: bug The primary issue is a bug in Trilinos code or tests

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@lkotipal
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lkotipal commented Feb 9, 2024

Bug Report

@egboman

Description

Zoltan hierarchical partitioning can free the communicator hpp.hier_comm here after it has already been freed here which can cause crashes on some MPI implementations.

Steps to Reproduce

  1. Bug seems to be present on both master and development branches
  2. Run the C example simpleHier.c
  3. Enjoy the crash, possibly.
@lkotipal lkotipal added the type: bug The primary issue is a bug in Trilinos code or tests label Feb 9, 2024
@lkotipal lkotipal mentioned this issue Feb 9, 2024
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@egboman egboman self-assigned this Feb 9, 2024
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pkg: Zoltan type: bug The primary issue is a bug in Trilinos code or tests
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@egboman @lkotipal