The research team at Tsinghua University has developed a 4-bit optimizer for neural network training, which significantly reduces the memory overhead of large model training. This optimizer cuts the GPU memory usage by up to 57% without compromising accuracy. Additionally, the team offers a ready-to-use 4-bit optimizer that can replace the existing ones, supporting low-precision versions of Adam and SGD. This research is crucial for addressing the GPU memory bottleneck in large model training.
LLaMA Fine-tuning Reduces GPU Memory Requirements by Half, Tsinghua Proposes 4-bit Optimizer

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