Skip to yearly menu bar Skip to main content


Poster
in
Workshop: Workshop on Machine Learning and Compression

Communication Compression for Tensor Parallel LLM Inference

Jan Hansen-Palmus · Alok Verma · Michael Truong Le


Abstract:

Large Language Models (LLMs) have pushed the frontier of artificial intelligence but are comprised of hundreds of billions of parameters and operations. For faster inference latency, LLMs are deployed on multiple hardware accelerators through various Model Parallelism strategies. Our paper looks into the details on one such strategy - Tensor Parallelism - and proposes to reduce latency by compressing inter-accelerator communication. We leverage fine grained quantization techniques to compress selected activations between 3.5 - 4.5x. Our proposed method leads up to 2x reduction of time-to-first-token (TTFT) with negligible model performance degradation.

Chat is not available.