opencv: add openblas support #26733
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opencv: add openblas support #26733
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Mic92
reviewed
Jun 25, 2017
| @@ -15,6 +15,7 @@ | |||
| , enableFfmpeg ? false, ffmpeg | |||
| , enableGStreamer ? false, gst_all_1 | |||
| , enableEigen ? false, eigen | |||
| , enableOpenblas ? false, openblas | |||
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The default implementation of blas/lapack is not optimized. Using openblas (or atlas) greatly improves performance.
Ceres-solver may also benefit from this (http://ceres-solver.org/installation.html#dependencies):
On UNIX OSes other than Mac OS X we recommend ATLAS, which includes BLAS and LAPACK routines. It is also possible to use OpenBLAS.
So maybe openblas should be enable in opencv.
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Motivation for this change
Things done
(nix.useSandbox on NixOS,
or option
build-use-sandboxinnix.confon non-NixOS)
nix-shell -p nox --run "nox-review wip"./result/bin/)