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A detailed blog post dissecting ThunderKittens, a compact DSL for high-performance AI kernels, including a bottom-up analysis of its abstractions and a benchmark implementing a non-causal attention prefill kernel that outperforms FlashAttention-2 by ~1.55x and matches FlashAttention-3.
Moonshot AI releases FlashKDA, an open-source CUTLASS-based implementation of Kimi Delta Attention kernels that delivers 1.72×–2.22× prefill speedup on H20 GPUs.