This article discusses the challenges of increasing the context length of large language models and introduces FlashAttention-2 as an improved attention mechanism. The new algorithm is twice as fast as FlashAttention and can achieve 10 times the speed of PyTorch’s standard attention. It explores the principles and improvements of FlashAttention-2, providing readers with a deeper understanding of the algorithm. The article was originally published on Towards AI.
source update: Unveiling FlashAttention-2 – Towards AI