Enabling Efficient SpMM for Sparse Attention on GEMM-Optimized Hardware with Block Aggregation

Le résumé fourni par la source

Rapidly growing context lengths have amplified the inherent sparsity in the attention mechanism of popular Large Language Models. However, the dynamic data access patterns required by sparse attention are challenging to realize using static data paths, leading to execution inefficiency. Existing SpMM hardware acceleration techniques address these inefficiencies by dynamically configuring data paths to align with the unstructured data access patterns of sparse attention. However, these approaches are not applicable to GEMM-optimized hardware, where dynamic data paths would introduce unacceptable hardware complexity and frequency degradation.

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