Intel's Math Kernel Library files

[km0010...@gmail.com]

Is there a more convenient way to get the files?

In this Windows-centric part of the chess world, I am running Arena on my Mac via Wine. This way I usually dont have to deal with compiling anything. 

However, Math Kernel Library files from Intel seem to come with an .exe extracter/installer (w_mkl_2018.2.185.exe) that does not work on my Mac. 

Is there another way to get the needed Windows files?

[Albert Silver]

It might not support your processor. What is the CPU?

[km0010...@gmail.com]

It's what Apple sells now, which is the Broadwell ULT 1.8 GHz i5 5350U one. 

I was assuming it would work since all the Haswell builds for Stockfish work and the fastest tournament builds of YaneuraOu shogi engines work, too.

[Albert Silver]

So what happens when you try to install the file? Does it crash? Does it say that it doesn't support or can't find the right CPU?

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[km0010...@gmail.com]

I can't install the .dll files since w_mkl_2018.2.185.exe crashes and just halts. 

If Windows just provided the .dll files in a compressed file, then i guess i wouldn't have any problems.

[FWCC1]

How do you download all of the files from the site that they provide

[km0010...@gmail.com]

You have to register with Microsoft. You create an account and give them your name & email address so they can put on their mailing lists. 

As for the files, you can't download them directly. You have to download their installer programs, which the files are hidden inside of.

[Nabil Danial]

You can use 7zip or another equivalent archiver GUIs and locate the following files in (w_mkl_2018.2.185.exe\installs\cmp_and_libs\185\ww_mkl_core_intel64_p_18.0.2.185\data1.cab\) folder inside the installer:

- mkl_avx2_dll (if you're using AVX2 build)

- mkl_mc3_dll (if you're using popcnt build, i haven't tested this one yet)

- mkl_core_dll 

- mkl_sequential_dll 

and rename the suffix from _dll to .dll. Copy them into the same folder as your lczero MKL build is and Leela should work then.

[edu.teu.ac.jp]

Thanks, it works for me. I'm using AVX build.

[km0010...@gmail.com]

Me too. Thank you very much!

I wasn't aware one could do this for installer .exe files. (Incidentally, the Unarchiver program wasn't flexible to uncompress it. But, the Keka program did the trick.)

Although there isnt a 0.10 version to compare yet, for version 0.09, the avx version is a little less than twice as fast on my computer.

[FWCC1]

So with this method she is stronger using CPU instead of GPU dependent?

[Nabil Danial]

Depends on what you have. GPU is always faster than CPU of similar price regardless of the backend implementations. Though it should be noted than MKL should be ~2 times faster than OpenBLAS implementation.