在本文中，我们探讨了 TorchMetrics 的简单用法如何引入 CPU-GPU 同步事件，并显著降低 PyTorch 训练性能。通过使用 PyTorch Profiler，我们识别了导致这些同步事件的代码行，并应用了有针对性的优化来消除它们： ...

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