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AztecOO: Calls DGEEV with suboptimal LWORK, triggers known MKL issue #4006

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mhoemmen opened this issue Dec 5, 2018 · 2 comments
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AztecOO: Calls DGEEV with suboptimal LWORK, triggers known MKL issue #4006

mhoemmen opened this issue Dec 5, 2018 · 2 comments
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mhoemmen commented Dec 5, 2018 •
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@trilinos/aztecoo

AztecOO appears to have the same issue calling DGEEV with suboptimal LWORK that Belos had:

#3497

Thanks to Alec Kucala for discovering this; it manifested as a double free with Intel 17 but not Intel 18 (maybe the two have different MKL versions? not sure). I have a fix ready and just need to make a PR.

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@mhoemmen mhoemmen self-assigned this Dec 5, 2018
@mhoemmen mhoemmen mentioned this issue Dec 5, 2018
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@bartlettroscoe bartlettroscoe added the stage: in progress Work on the issue has started label Dec 5, 2018
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mhoemmen commented Dec 5, 2018

@hkthorn @bartlettroscoe FYI; I have a PR in place to work around this.

trilinos-autotester added a commit that referenced this issue Dec 6, 2018
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Merge Pull Request #4007 from mhoemmen/Trilinos/Fix-4006
37a52af 
Automatically Merged using Trilinos Pull Request AutoTester
PR Title: AztecOO: Fix #4006 (suboptimal LWORK for DGEEV triggers MKL bug)
PR Author: mhoemmen
tjfulle pushed a commit to tjfulle/Trilinos that referenced this issue Dec 6, 2018
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AztecOO: Fix trilinos#4006 (suboptimal LWORK for DGEEV triggers MKL bug)
001433d 
@trilinos/aztecoo
@bartlettroscoe bartlettroscoe removed the stage: in progress Work on the issue has started label Dec 10, 2018
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@rrdrake @vbrunini FYI

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