RingAttention and Context Parallelism: Mathematical Foundations, Distributed Blockwise Attention, Circular Communication Topologies, and Million-Token Context Scaling
RingAttention and Context Parallelism: Mathematical Foundations, Distributed Blockwise Attention, Circular Communication Topologies, and Million-Token Context Scaling Standard Transformer architectures face a quadratic memory and computational barrier in their self-attention mechanism. While FlashAttention solved the high-bandwidth memory (HBM) IO bottleneck on single devices by tiling matrices within SRAM, scaling sequence lengths beyond hundreds of thousands or millions of tokens quickly exce
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