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Performance difference between GPU version with/without MKL #25

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Moulick opened this issue Feb 9, 2018 · 2 comments
Open

Performance difference between GPU version with/without MKL #25

Moulick opened this issue Feb 9, 2018 · 2 comments

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@Moulick
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Moulick commented Feb 9, 2018 •
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Not a issue, but a general question. Will having MKL matter at all if the calculations are being done on the GPU?
@danqing
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danqing commented Feb 27, 2018

Theoretically no, but depending on your model and parameters, MKL builds may be slower. There are some discussions in #12.

@kaczmarj
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kaczmarj commented Mar 5, 2018

I am confused because TensorFlow's performance guide writes:

Note: MKL was added as of TensorFlow 1.2 and currently only works on Linux. It also does not work when also using --config=cuda.

Are we sure that the GPU+MKL wheels are actually built with MKL support?

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@danqing @Moulick @kaczmarj