GPU slower than CPU due to FFT preprocessing « k-Wave User Forum

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GPU slower than CPU due to FFT preprocessing

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Started 5 months ago by zak morgan

zak morgan

Member
Joined: May '24
Posts: 3

Hi, I'm new to k-wave and noticed that when running on the CPU c++ code pre-rpocessing is instant and then my simulation takes about 47 seconds, however when running the CUDA code, the simulation takes about 10 seconds, but 80 seconds is spent on pre-processing the FFT. Is this expected?

Posted 5 months ago #

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