Hi Ole,I've looked at the code of xsimd 8, and it seems that the fallback has been replaced by another mechanism; however my tests on a mipsel porterbox fail to compile simple programs. I've taken the issue upstream (https://github.com/xtensor-stack/xsimd/issues/756) to see what is the status of the fallback mechanism.
Cheers, -- Julien Le 05/05/2022 à 09:58, Ole Streicher a écrit :
Source: xsimd Version: 7.6.0-2 Control: affects -1 src:pythran src:skimage Control: block 1009431 by -1 Control: block 1010430 by -1 Dear maintainer,xsimd provides a unique API for SIMD instructions among different processor architectures. Additionally to many specific architectures, there is also a fallback scalar option for unsupported architectures (as far as I interpret the headers).Currently, xsimd-dev fails to build on armel, armhf, mips64el, mipsel, ppc64el, s390x (armhf is built with 8.0.3-1 on experimental).xsimd-dev is build dependency of pythran, which makes pythran uninstallable on the platforms where xsimd-dev fails.In turn, python3-pythran is a new build dependency of skimage (0.19.2). The current version of skimage (0.18.3) is now starting to collect RC bugs because of incompatibilities with newer pil and tifffile versions (#1009431, #1010430).skimage is also one of the basic scientific Python packages which is expected to be available on all platforms.Therefore, could I ask to provide xsimd-dev for all platforms, using the scalar fallback for unsupported CPUs?Best regards Ole
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