Kieran Wrote: > Hi Jianhua, > > Can you make the avx512 code only be run for ice lake processors? >
Hi Kieran, As I see the macro, EXTERNAL_AVX512, located in libavutil/cpu.h, only an EXTERNAL_AVX512 is used to check the state of AVX512, which did not district the Icelake-AVX512 or Skylake-AVX512. If I have the approval from maintainers, I'm supposed to be able to change the configure file and CPU.h to add a feature that the configuration only enables AVX512 when the architecture of a running CPU is satisfied to the IceLake. Or we could keep the EXTERNAL_AVX512 and add a new macro, EXTERNAL_AVX512ICL. How about your opinion? By the way, these patches only used the minimum subsets of AVX512 and have higher compatibility. I think it's okay to use it in any arch that supports AVX512. Feel free to let me know if you have different perspectives or if I neglected something. Best regards. Jianhua _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
