topic API for GPU usage under Mac OS in OpenCL* for CPU

API for GPU usage under Mac OS

lucas_w_3 — Fri, 21 Aug 2015 05:54:08 GMT

Now I use OpenCL with Intel Iris GPU to process image under Mac OS. Before I lunch the OpenCL kernel, I need know the GPU usage.

I wonder that whether there is the API that i can use in the program to query the GPU usage.

thx.

Lucas,

Robert_I_Intel — Sat, 22 Aug 2015 01:51:32 GMT

Lucas,

Do you mean, you want to know how busy are the GPU execution units? You don't need to worry about that: OpenCL kernel will be placed into a queue and gets processed once GPU is ready for it. Otherwise, I am not aware of the APIs on MacOS that give you this info: please contact the Apple support.

Quote:Robert I. (Intel) wrote

lucas_w_3 — Sat, 22 Aug 2015 16:26:25 GMT

Robert I. (Intel) wrote:

Lucas,

Do you mean, you want to know how busy are the GPU execution units? You don't need to worry about that: OpenCL kernel will be placed into a queue and gets processed once GPU is ready for it. Otherwise, I am not aware of the APIs on MacOS that give you this info: please contact the Apple support.

Robert, thx.

I know what you said. I put OpenCL for real-time image processing. So if the GPU is busy, I will not launch the kernel to GPU, I will select CPU to process.

Anyway, thx .