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Tsai__Richard
Beginner
123 Views

Use CPU(KL) to run FFT of Intel IPP takes longer than CPU(HL)

Customer uses related Fast Fourier Transform(FFT) part of Intel Integrated Performance Primitives(IPP) to get calculated result (Please refer attached file).
Why use a new generation of CPU (Kaby Lake)) to run FFT of Intel IPP will takes longer than the previous generation of CPU (Haswell)? Could you expain this phenomenon? Thanks.

 

 

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7 Replies
Abhinav_S_Intel
Moderator
123 Views

Thank you for reaching out to us. Can you please share some sample code to investigate this issue on our side?

Tsai__Richard
Beginner
123 Views

Could you tell in detail what kind of some sample code sharing with you?

Abhinav_S_Intel
Moderator
123 Views

Any sample code which is shareable and can reproduce Fast Fourier Transform(FFT) performance issue observed at your end. 

Tsai__Richard
Beginner
123 Views

Our AE keeps on asking customer's sharing sample code quickly. 

Gennady_F_Intel
Moderator
123 Views

Richard, are there any samples from your side?

Tsai__Richard
Beginner
123 Views

Keep on urging AE to ask for customer's providing sample code.

Pavel_B_Intel1
Employee
123 Views

Richard,

which FFT do you mean: signal processing (1D) or image processing (2D)?

In any way I recommend to use one OS for perf measurement. win7 vs win10 - there are can be some patches for security vulnerability affect performance.

Pavel

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