this post was submitted on 02 Apr 2025
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Programming

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Can anybody explain why CUDA and Rocm are necessary and why OpenCL isn't the solution? (self.programming)
submitted 1 week ago by onlinepersona to c/programming
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I've read multiple times that CUDA dominates, mostly because NVIDIA dominates. Rocm is the AMD equivalent, but OpenCL also exists. From my understanding, these are technologies used to program graphics cards - always thought that shaders were used for that.

There is a huge gap in my knowledge and understanding about this, so I'd appreciate somebody laying this out for me. I could ask an LLM and be misguided, but I'd rather not 🤣

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[–] [email protected] 3 points 1 week ago

Because Nvidia wrote an absolute fuck-ton of their Cuda stack to make it far more performant for many common tasks out of the box.

Early opencl implementations absolutely sucked.