AVX512 detection failed when cpu supports AVX512
Open
- Dominant language
- C
- Stars
- 1.1k
- Forks
- 346
- PR merge metrics
- No merged PRs in 30d
Description
OS: debian 9
GCC: 6.3
NASM: 2.12.01
CPU: Intel(R) Xeon(R) Silver 4314 CPU @ 2.40GHz
ISA-L: 2.31
I have confirmed that my cpu supports AVX512 through https://ark.intel.com/content/www/us/en/ark/products/215269/intel-xeon-silver-4314-processor-24m-cache-2-40-ghz.html. However the AVX512 detection in building isa-l failed. I tried to run the detection code myself and got the following output:
`$echo vinserti32x8 zmm0, ymm1, 1\; > tst.asm && nasm -f elf64 tst.asm && echo pass`
`tst.asm:1: error: invalid combination of opcode and operands`.
I want to know why the detection failed and if there are some operations to the OS kernel I need to perform to enable AVX512. Thanks for answering!
Contributor guide
Assessment
This issue has not been assessed yet.