add groupnorm group divisible check#35644
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jeff41404 merged 1 commit intoPaddlePaddle:developfrom Sep 16, 2021
zhiboniu:develop_groupnorm
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add groupnorm group divisible check#35644jeff41404 merged 1 commit intoPaddlePaddle:developfrom zhiboniu:develop_groupnorm
jeff41404 merged 1 commit intoPaddlePaddle:developfrom
zhiboniu:develop_groupnorm
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Describe 中详细描述下问题解决方案 和 解决后的结果 |
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异常检查建议都加在 InferShape 中，避免不同设备的compute中都包含这些逻辑
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异常检查建议都加在 InferShape 中，避免不同设备的compute中都包含这些逻辑
…roup divisible check
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…roup divisible check (PaddlePaddle#35644)
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Bug fixes
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Describe
add groupnorm group divisible check
修改内容：
1）修改group_size计算公式为： group_size = floor(C / groups)，分组方式与行业惯例保持一致。
2）考虑groupnorm本意。添加channel_num能够被groups整除的检查。如果不能整除则会报错。
Log:
ValueError: (InvalidArgument) Expected number of channels in input to be divisible by num_groups, but got input channel is 6 and num_groups is 4
[Hint: Expected channel_num % groups == 0, but received channel_num % groups:2 != 0:0.] (at /home/niuzhibo/work/paddleapi/Paddle/paddle/fluid/operators/group_norm_op.cc:74)
[operator < group_norm > error]