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tztztztztz / eqlv2

The official implementation of Equalization Loss v1 & v2 (CVPR 2020, 2021) based on MMDetection. https://arxiv.org/abs/2012.08548 https://arxiv.org/abs/2003.05176
Apache License 2.0
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RuntimeError: Default process group has not been initialized, please make sure to call init_process_group. #10

Closed sanmulab closed 3 years ago

sanmulab commented 3 years ago

作者您好！就是我在用你的代码进行训练时报了这个错误，然后我百度查原因是里面有分布式训练代码的问题，然后我想问下为什么eqlv2.py要用分布式配置训练呢，不用分布式怎么解决这个报错

sanmulab commented 3 years ago

单GPU不能运行eqlv2吗？

tztztztztz commented 3 years ago

@chensen668 你好，因为eqlv2需要统计所有GPU上的正负梯度，所以需要用到分布式中的all_reduce函数。 如果你是单GPU的话，直接去掉对应的allreduce语句即可

sanmulab commented 3 years ago

感谢作者哥回复，明天我试试

------------------ 原始邮件 ------------------ 发件人: "tztztztztz/eqlv2" @.>; 发送时间: 2021年8月5日(星期四) 晚上11:03 @.>; @.**@.>; 主题: Re: [tztztztztz/eqlv2] RuntimeError: Default process group has not been initialized, please make sure to call init_process_group. (#10)

@chensen668 你好，因为eqlv2需要统计所有GPU上的正负梯度，所以需要用到分布式中的all_reduce函数。 如果你是单GPU的话，直接去掉对应的allreduce语句即可

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