"Restarting data prefetching from start" repeated many times one by one. why?
来源:互联网 发布:dive into python 2 编辑:程序博客网 时间:2024/06/05 03:10
网上回答:
1、“In general it means that you don’t have enough training data and it has to use the data over and over again. For your specific case there’s not enough information to determine the reason.”
2、“Probably you didn’t generate good lmdb files, please double check.”
分析:因为我训练的模型结果并没有因为这个出现而性能变差,所以并不是数据或者什么的问题。我以前只使用一块K40的GPU,计算速度比较慢,读取数据的速度能够满足GPU的计算,而我后来使用了8块TITAN X,计算速度大大提升,有可能是设备的数据读取速度满足不了快速的GPU计算,于是重复显示这个。
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