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FindAMReXFFTW.cmake Support Native Threading#4934

Merged
ax3l merged 2 commits intoAMReX-Codes:developmentfrom
ax3l:fix-fftw-cmake-onoff
Feb 6, 2026
Merged

FindAMReXFFTW.cmake Support Native Threading#4934
ax3l merged 2 commits intoAMReX-Codes:developmentfrom
ax3l:fix-fftw-cmake-onoff

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@ax3l ax3l commented Feb 3, 2026

Summary

  • FFTW: Support Native Threading: Add an advanced AMReX_FFTW_OMP_SUFFIX flag to control alternate FFTW threading libs. Not ideal, but ok in a ditch.
  • Fix FindAMReXFFTW.cmake Message: The message for AMReX_FFTW_IGNORE_OMP was indicating the wrong value to ignore OMP search.

Additional background

See conda-forge/amrex-feedstock#72 (comment)
Close conda-forge/amrex-feedstock#73

Checklist

The proposed changes:

  • fix a bug or incorrect behavior in AMReX
  • add new capabilities to AMReX
  • changes answers in the test suite to more than roundoff level
  • are likely to significantly affect the results of downstream AMReX users
  • include documentation in the code and/or rst files, if appropriate

The message for `AMReX_FFTW_IGNORE_OMP` was indicating the
wrong value to ignore OMP search.
@ax3l ax3l requested a review from WeiqunZhang February 3, 2026 05:29
@ax3l ax3l changed the title Fix FindAMReXFFTW.cmake Message FindAMReXFFTW.cmake Support Native Threading Feb 3, 2026
@ax3l ax3l force-pushed the fix-fftw-cmake-onoff branch from 27f7d3b to 100326b Compare February 3, 2026 05:51
Add an advanced `AMReX_FFTW_OMP_SUFFIX` flag to control
alternate FFTW threading libs. Not ideal, but ok in a ditch.
@ax3l ax3l merged commit dffffdf into AMReX-Codes:development Feb 6, 2026
74 checks passed
@ax3l ax3l deleted the fix-fftw-cmake-onoff branch February 6, 2026 23:34
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Windows: FFTW Threads

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