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- W4385774625 abstract "GPU-aware collective communication has become a major bottleneck for modern computing platforms as GPU computing power rapidly rises. To address this issue, traditional approaches integrate lossy compression directly into GPU-aware collectives, which still suffer from serious issues such as underutilized GPU devices and uncontrolled data distortion. In this paper, we propose gZCCL, a general framework that designs and optimizes GPU-aware, compression-enabled collectives with an accuracy-aware design to control error propagation. To validate our framework, we evaluate the performance on up to 512 NVIDIA A100 GPUs with real-world applications and datasets. Experimental results demonstrate that our gZCCL-accelerated collectives, including both collective computation (Allreduce) and collective data movement (Scatter), can outperform NCCL as well as Cray MPI by up to 4.5X and 28.7X, respectively. Furthermore, our accuracy evaluation with an image-stacking application confirms the high reconstructed data quality of our accuracy-aware framework." @default.
- W4385774625 created "2023-08-12" @default.
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- W4385774625 date "2023-08-09" @default.
- W4385774625 modified "2023-10-16" @default.
- W4385774625 title "gZCCL: Compression-Accelerated Collective Communication Framework for GPU Clusters" @default.
- W4385774625 doi "https://doi.org/10.48550/arxiv.2308.05199" @default.
- W4385774625 hasPublicationYear "2023" @default.
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