Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Incorrect result from X'y in Julia #4352

Closed
droodman opened this issue Dec 3, 2023 · 2 comments · Fixed by #4375
Closed

Incorrect result from X'y in Julia #4352

droodman opened this issue Dec 3, 2023 · 2 comments · Fixed by #4375

Comments

@droodman
Copy link

droodman commented Dec 3, 2023

Please see this issue posted at JuliaLang.
@martin-frbg
Copy link
Collaborator

martin-frbg commented Dec 3, 2023 •
edited
Loading

Interestingly this appears to use the same GEMV_T codepath as assumed to cause a problematic loss of precision in JuliaLang/julia#4324 - though here the exact same kernel works when compiled for AVX2-only but not when AVX512 instructions are available.

@martin-frbg
Copy link
Collaborator

Actually not related as it only happens with the ancient SSE kernel for Core2 that was the default for an unrecognized (too recent) cpu in past versions.

@martin-frbg martin-frbg mentioned this issue Dec 15, 2023
Merged
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

Successfully merging a pull request may close this issue.

Retire the GotoBLAS gemv_t kernel still used as fallback on x86_64 martin-frbg/OpenBLAS
2 participants
@martin-frbg @droodman