azuresky01

发现3A6000在SPEC2017里的548.exchange2_r测试成绩在gcc14 snapshot 20240317版本后有明显下降

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该测试在gcc9到gcc10时也出现过性能下降：https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94373 首先在Loong Arch Linux上发现，在AOSC OS 11.4.0上做了详细测试，性能下降在20%左右。 on loongarch64 (3A6000) AOSC OS 11.4.0: with optimization parameters "-g -Ofast -march=native": since 20240317 down 18-19.1% 13.2.0: 11.3 (232s) [system default gcc 13.2.0] 20240317:...

可否在XA61200的BIOS里提供关闭超线程选项？

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如题。有些程序可能关闭超线程更好。

Compilation of OpenBLAS on loongarch64 is now possible with LLVM clang/flang(flang-new) version 20 and above. Recently I tried to build OpenBLAS 0.3.30 (should also apply to current dev version) on...