Xsim is a heterogeneity-aware simulator for distributed LLM training supporting load balancing, customized collectives, tensor resharding, and pluggable network simulation, reporting under 5% error in training time predictions.
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Simulating Unified Tensor Resharding in heterogeneous AI systems
Xsim is a heterogeneity-aware simulator for distributed LLM training supporting load balancing, customized collectives, tensor resharding, and pluggable network simulation, reporting under 5% error in training time predictions.