-
Notifications
You must be signed in to change notification settings - Fork 359
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.
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
DLL drop-in performance 10x lower than openBlas on Octave #675
Comments
Just discover the problem, which is that a multithread version of dll should be used. The result is indeed faster than openBlas. |
Dear developers,
I am using the dll from AMD (https://developer.amd.com/amd-optimizing-cpu-libraries_eula/) to test its compatibility and performance on Windows. The dll name is AOCL-LibBlis-Win-dll.dll which can be found in C:\Program Files\AMD\AOCL-Windows\amd-blis\lib\LP64. I modified this name to libblas.dll and placed it into C:\Program Files\GNU Octave\Octave-7.2.0\mingw64\bin where there was an openBlas version with the same name.
I found out that while executing the following Octave command on AMD 5950x, it gives around 10x lower performance compared with openBlas.
a2 = ones(2000,'single');
tic
for i = 1:100
a2*a2;
end
toc
Thank you very much!
Best wishes,
Jinchuan
The text was updated successfully, but these errors were encountered: