Updating 1T parameters in seconds — P2P weight transfer in Large Scale Distributed RL - LMSYS Org
We introduced a RDMA-based, Peer to Peer weight update mechanism for RL workloads in SGLang as a supplement to traditional NCCL broadcast methods, compatible with all major open source models. By util...
Updating 1T parameters in seconds — P2P weight transfer in Large Scale Distributed RL - LMSYS Org Projects Blog About Donations Contact ‹ Back to Blog ‹ Back to Blog Contents Background Challenges with Existing NCCL Broadcast Design Initialization During Each Update Implementation Results Usage Future Plans Engineering Appendix Design Iterations Peer to Peer Transfer Plan Identify SGLang Tensors to Transfer Transfer Flow with Shared Replica Other Quantization and Post Processes Updating 1T parameters in seconds — P2P weight transfer in Large Scale Distributed RL Jiadong Guo, Xin Ji, Letian Rua
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