SignMuon: Communication-Efficient Distributed Muon Optimization

In three linesSign-Muon is a 1-bit distributed optimizer combining majority-vote sign aggregation (signSGD) with Muon's polar-step framework. It reduces communication by 32× in float32 and achieves 92.15% accuracy on CIFAR-10/ResNet-50, with 37% less training time on 4 GPUs.

Summary generated by Claude — human-verified