If you were wondering if assembly language optimization is still relevant, it was partially responsible for NVDA's stock price dropping by 17% today:
"DeepSeek actually programmed 20 of the 132 processing units on each H800 specifically to manage cross-chip communications. This is actually impossible to do in CUDA. DeepSeek engineers had to drop down to PTX, a low-level instruction set for Nvidia GPUs that is basically like assembly language."
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