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LazyTrain: Limited-resource Allocation toward Zero-waste Yield Optimization in Large Language Model Training

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TL;DR - LazyTrain optimizes checkpointing, activation placement, recomputation, and data transfers for LLM training on memory-constrained hardware. It improves throughput and enables larger batches by reducing exposed communication and optimizer-state overhead.

  • Uses mixed-integer scheduling to coordinate CPU, GPU, and NVMe resources.
  • Combines 8-bit optimizer states with fast gradient clipping in a Hybrid 8-bit operator.
  • Improves sustained TFLOPS by approximately 1.24Ă— over matched H800 baselines.
  • Trains Qwen3.6-27B at 1,361 tokens/s with batch size 72 and 68.84 GB peak GPU memory.

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LazyTrain: Limited-resource Allocation toward Zero-waste Yield Optimization in Large Language Model Training

arXiv cs.CL Xiaojun Wu, Cehao Yang, Honghao Liu, Xueyuan Lin, Xuhui Jiang, Chengjin Xu, Jia Li, Jian Guo 2026-08-12 arXiv:2608.11919
Public signals Semantic Scholar citations 0 · Semantic Scholar influential citations 0
Providers: Hugging Face · N/A OpenAlex · N/A Publisher · N/A Semantic Scholar · Citations 0 · Influential citations 0 X · N/A Fetched 2026-08-17 09:42:50.094617 UTC

TL;DR - LazyTrain optimizes checkpointing, activation placement, recomputation, and data transfers for LLM training on memory-constrained hardware. It improves throughput and enables larger batches by reducing exposed communication and optimizer-state overhead.

  • Uses mixed-integer scheduling to coordinate CPU, GPU, and NVMe resources.
  • Combines 8-bit optimizer states with fast gradient clipping in a Hybrid 8-bit operator.
  • Improves sustained TFLOPS by approximately 1.24Ă— over matched H800 baselines.
  • Trains Qwen3.6-27B at 1,361 tokens/s with batch size 72 and 68.84 GB peak GPU memory.
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