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BinomialLLC / basis_universal

Basis Universal GPU Texture Codec
Apache License 2.0
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Will OpenCL 3.0 improve compression performance? #349

Closed happyhackingkksk closed 8 months ago

happyhackingkksk commented 1 year ago

I'm running basisu.exe -parallel -opencl -file to compress dozens JPEG with 6000x4000 resolution to BASIS, GTX1050Ti's CUDA only works intermittently, and compared to compression without opencl, the time only reduce by about 20%. And it seems that the acceleration effect of OpenCL is only effective for images with relatively high resolutions, it's even faster to not use OpenCL for images with a resolution of 1500x1000. I don't know why and wonder if modify the OpenCL-related code to support OpenCL 3.0, will it improve the compression performance? Thank you.

richgel999 commented 1 year ago

OpenCL performance vs. the CPU highly depends on the driver, the GPU and the CPU, etc. I doubt OpenCL 3.0 would help. There are more optimizations I could do, but it's a lot of work.