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expert-parallelism

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papersTODAY 04:00 UTC

X-Stage Paper Models Post-Issue Backpressure in Fused GPU Communication

A new arXiv paper examines how device-initiated communication affects fused GPU kernels that issue remote stores straight from their compute pipelines, a common pattern in expert and tensor parallelism. The authors introduce X-Stage, a model of post-issue backpressure that arises once such stores have been dispatched. The work aims to characterize performance limits in these communication-computation overlapped workloads.

gpu/distributed-training/arxiv/performance