Support for OpenCL？

[hhd-shuai]

Hi, does the RK3588 support running OpenCL code? If so, in what way does it run, and is the device the GPU?

[kappo96]

Well, first of all, this is not a problem for this lib🤨. Secondly, I have tried calling the GPU(ARM mali g610) of this chip using OpenCL, which is feasible. The specific implementation can be seen in the following linkhttps://blog.csdn.net/zichuanning520/article/details/129411886

[hhd-shuai]

Well, first of all, this is not a problem for this lib🤨. Secondly, I have tried calling the GPU(ARM mali g610) of this chip using OpenCL, which is feasible. The specific implementation can be seen in the following linkhttps://blog.csdn.net/zichuanning520/article/details/129411886

Thanks for your reply! I have another question. If the RKNN model needs the results processed by an OpenCL kernel, how can I avoid data copying?

[kappo96]

It should be possible to avoid this copy operation, but it seems that only by using the OpenCL clCreateBuffer function with the CL_MEM_ALLOC_HOST_PTR flag can we allocate memory that can be used simultaneously by both OpenCL and RKNN.

[hhd-shuai]

It should be possible to avoid this copy operation, but it seems that only by using the OpenCL clCreateBuffer function with the CL_MEM_ALLOC_HOST_PTR flag can we allocate memory that can be used simultaneously by both OpenCL and RKNN.

Thanks! I'll give it a shot.