Xeon Phi and ClMagma

Open discussion for MAGMA library (Matrix Algebra on GPU and Multicore Architectures)

Xeon Phi and ClMagma

Postby quanghieu » Wed Jul 05, 2017 9:31 pm

I have an issue when i try clMagma in my algorithm using Xeon Phi co-procesor, lets say my algorithm takes 2.6s to run, when i try clmagma for gpu that time its reduced to 0.8s, thats what i can expect, but when i run it inside Xeon Phi the times goes to 792 seconds, so its there any issue using this platform for ClMagma? (clmagma is recompiled for this platform before any test are run).

Thanks you for your time
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Re: Xeon Phi and ClMagma

Postby mgates3 » Wed Jul 26, 2017 11:58 am

We haven't tested clMAGMA with the Xeon Phi, and don't recommend it. To my knowledge, Intel hasn't updated OpenCL for the Xeon Phi in a while. Simply using the vendor-optimized Intel MKL for the Xeon Phi will yield much better performance.
-mark
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