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Allow FlexiBLAS to link to MKL with LLVM#3997

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bartoldeman:flexiblas-llvm
Dec 6, 2025
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Allow FlexiBLAS to link to MKL with LLVM#3997
boegel merged 1 commit intoeasybuilders:developfrom
bartoldeman:flexiblas-llvm

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@bartoldeman bartoldeman commented Nov 21, 2025 •
edited by boegel
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LLVM flang follows gfortran for complex return values, but its OpenMP library libomp.so is compatible with Intel's.

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Allow FlexiBLAS to link to MKL with LLVM
b4475db 
LLVM flang follows gfortran for complex return values, but its
OpenMP library libomp.so is compatible with Intel's.
@bartoldeman bartoldeman mentioned this pull request Nov 21, 2025
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@boegel boegel added this to the next release (5.2.0) milestone Dec 3, 2025
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boegel commented Dec 6, 2025

@boegelbot please test @ jsc-zen3
CORE_CNT=16
EB_ARGS="--installpath /tmp/$USER/pr3997 FlexiBLAS-3.3.1-GCC-12.3.0.eb FlexiBLAS-3.4.5-GCC-14.3.0.eb"

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boegelbot commented Dec 6, 2025

@boegel: Request for testing this PR well received on jsczen3l1.int.jsc-zen3.fz-juelich.de

PR test command 'if [[ develop != 'develop' ]]; then EB_BRANCH=develop ./easybuild_develop.sh 2> /dev/null 1>&2; EB_PREFIX=/home/boegelbot/easybuild/develop source init_env_easybuild_develop.sh; fi; EB_PR=3997 EB_ARGS="--installpath /tmp/$USER/pr3997 FlexiBLAS-3.3.1-GCC-12.3.0.eb FlexiBLAS-3.4.5-GCC-14.3.0.eb" EB_CONTAINER= EB_REPO=easybuild-easyblocks EB_BRANCH=develop /opt/software/slurm/bin/sbatch --job-name test_PR_3997 --ntasks="16" ~/boegelbot/eb_from_pr_upload_jsc-zen3.sh' executed!

  • exit code: 0
  • output:
Submitted batch job 9023

Test results coming soon (I hope)...

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boegelbot commented Dec 6, 2025

Test report by @boegelbot

Overview of tested easyconfigs (in order)

  • SUCCESS FlexiBLAS-3.3.1-GCC-12.3.0.eb
  • SUCCESS FlexiBLAS-3.4.5-GCC-14.3.0.eb

Build succeeded for 2 out of 2 (total: 17 mins 24 secs) (2 easyconfigs in total)
jsczen3c2.int.jsc-zen3.fz-juelich.de - Linux Rocky Linux 9.6, x86_64, AMD EPYC-Milan Processor (zen3), Python 3.9.21
See https://gist.github.com/boegelbot/fca1c4b610d16d6cef157dd648d53eb7 for a full test report.

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boegel approved these changes Dec 6, 2025
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lgtm

@boegel boegel merged commit 72af843 into easybuilders:develop Dec 6, 2025
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