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[Accuracy diff No.52] Fix accuracy diff for reciprocal API by ooooo-create · Pull Request #73128 · PaddlePaddle/Paddle · GitHub
ooooo-create
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[Accuracy diff No.52] Fix accuracy diff for reciprocal API
Fix accuracy diff for reciprocal API
Jun 6, 2025
ooooo-create
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Fix accuracy diff for reciprocal API
[Accuracy diff No.52] Fix accuracy diff for reciprocal API
Jun 6, 2025
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[Accuracy diff No.52] Fix accuracy diff for reciprocal API #73128
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Merged
lshpku
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ooooo-create:accuracy_reciprocal
Jun 10, 2025
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[Accuracy diff No.52] Fix accuracy diff for reciprocal API #73128
lshpku
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ooooo-create:accuracy_reciprocal
Jun 10, 2025
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你的PR提交成功，感谢你对开源项目的贡献! |
ooooo-create
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lshpku
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| MPType dout = static_cast<MPType>(arg_dout); | ||
| MPType out = static_cast<MPType>(arg_out); | ||
| return static_cast<T>(-dout * | ||
| static_cast<MPType>(static_cast<T>(out * out))); |
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能给个torch的链接看看吗，或者写在简介里
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lshpku
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Jun 10, 2025
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Jun 12, 2025
…dle#73128) * fix reciprocal_grad accuracy * fix compile * refine
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PR Category
Execute Infrastructure
PR Types
Improvements
Description
日志显示反向精度问题，都出现在 torch 包含 inf 中，torch 的自动求导是
-grad * (result * result).conj()，先进行了 output 的相乘，如果出现 inf ，就会传递下去，paddle中按顺序 -grad*result，就导致不会出现 inf。对齐 torch 的行为，感觉在数学上也更加合理。（这里加了一个精度提升，主要是看见 torch 的mul算子有这个行为，但是没加 PaddleAPITest 也能通过