Forums - OpenCL execute kernelss on GPU, but high CPU usage

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OpenCL execute kernelss on GPU, but high CPU usage
xcq_88
Join Date: 15 Dec 19
Posts: 1
Posted: Sun, 2021-12-19 18:47

Why I get 100% cpu usage  when running opencl kernels on gpu? Is there any way to reduce the cpu utilization?

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AndreyVK_D3D
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Join Date: 10 Jun 13
Location: Moscow
Posts: 36
Posted: Wed, 2021-12-29 00:44

1) could you provide example code?

2) where did you mesure CPU's overhead ?

3) wich tools did you use for mesuring CPU's overhead ?

4) did you select OpenCL device with CL_DEVICE_TYPE == CL_DEVICE_TYPE_GPU?

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DuBo
Join Date: 9 Dec 13
Posts: 41
Posted: Fri, 2022-02-11 07:30

Yes, can you share your sample code and logcat log when you run sample code on device?

 

Thanks
Bob Du

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