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don't set nthreads > 1 by default #151

Merged
merged 1 commit into from
May 25, 2020
Merged

don't set nthreads > 1 by default #151

merged 1 commit into from
May 25, 2020

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stevengj
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@stevengj stevengj commented May 25, 2020

Defaulting to multi-threaded FFTW was causing too many slowdowns in code that was calling FFTW in parallel from multiple threads (where the right thing is to use the serial FFTW, especially given Julia's current thread-spawning overhead).

Closes #121. Closes JuliaDSP/DSP.jl#339.

@stevengj stevengj merged commit 1be547b into master May 25, 2020
@stevengj stevengj deleted the stevengj-patch-1 branch May 25, 2020 14:35
@galenlynch
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Thank you!

@galenlynch
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If possible, could you could please release a new patch version to allow DSP.jl to benefit from this PR? Thank you once again!

@ararslan ararslan mentioned this pull request Jun 1, 2020
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ararslan commented Jun 1, 2020

#154 disregard that PR. I'll tag a new release now: JuliaRegistries/General#15714

@galenlynch
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Thanks!

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Performance regression in conv for images slowdown in threaded code from julia 1.2 to julia 1.4-DEV
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