COCCL: A Collective Communication Library Supporting Easy Integration and Configuration of Customized Compression for Scalable LLM Training

Xingchen Liu, Haoran Kong, Hairui Zhao, Shengkai Lyu, Zheng Wei, Man Liu, Xingjian Tian, Liyang Zhao, Zhuohan Chen, Fakang Wang, Zizhong Chen, Zhan Wang 0003, Guangming Tan, Dingwen Tao. COCCL: A Collective Communication Library Supporting Easy Integration and Configuration of Customized Compression for Scalable LLM Training. In Tony Hosking, Madan Musuvathi, Kenjiro Taura, editors, Proceedings of the 31st ACM SIGPLAN Annual Symposium on Principles and Practice of Parallel Programming, PPoPP 2026, Sydney, NSW, Australia, 31 January 2026 - 4 February 2026. pages 384-397, ACM, 2026. [doi]

Authors

Xingchen Liu

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Haoran Kong

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Hairui Zhao

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Shengkai Lyu

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Zheng Wei

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Man Liu

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Xingjian Tian

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Liyang Zhao

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Zhuohan Chen

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Fakang Wang

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Zizhong Chen

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Zhan Wang 0003

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Guangming Tan

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Dingwen Tao

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