Do I need a better libopenblas.dll for CPU Leela?

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Ovyron
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Joined: Tue Jul 03, 2007 2:30 am

Do I need a better libopenblas.dll for CPU Leela?

Post by Ovyron » Thu Jan 30, 2020 4:19 pm

Laskos made me aware that my CPU Leela is running unnaturally slow. I'm on a Core2 Q8200 2.33Ghz 4CPU and get 23 nps, while supposedly I could be getting some 230 nps.

I researched this online and found this, someone managed to compile their own libopenblas and got some x10 times speedup. But I tried their dll and Leela is still slow.

This is what I see:

Code: Select all

OpenBLAS [DYNAMIC_ARCH NO_AFFINITY Penryn].
OpenBLAS found 4 Penryn core(s).
OpenBLAS using 1 core(s) for this backend.
BLAS max batch size is 256.
In this the fastest CPU Leela can run on my machine?

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