New ask Hacker News story: Ask HN: Best way to learn GPU programming?

Ask HN: Best way to learn GPU programming?
3 by hazard | 2 comments on Hacker News.
I'd like to learn GPU programming but I'm having difficulty finding high-quality resources. I tried a class at coursera and was severely disappointed by both quality and content. What are the best resources for learning things like GPU architecture, CUDA, Triton, etc? My goal is to do be able to do something like take a description of Flash Attention and implement it from scratch, or optimize existing CUDA code.