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[PHI] Fix paddle.linalg.det input from random to non-singular #394

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Merged
merged 1 commit into from
Jul 18, 2025
Merged

[PHI] Fix paddle.linalg.det input from random to non-singular #394

merged 1 commit into from
Jul 18, 2025

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@cangtianhuang
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@cangtianhuang cangtianhuang commented Jul 17, 2025 •
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与以下 PR 相同：

当输入拥有奇异矩阵时，paddle.linalg.det 会导致矩阵求逆错误：
image

虽然 PaddlePaddle/Paddle#73751 已经解决报错问题，但反向结果仍与理论值相差较大，等待后续修复

因此在仅关注 bigtensor 的情况下，先构造输入，从随机矩阵改为非奇异矩阵，以此规避奇异问题，验证 bigtensor 是否正确；修改后，所有测试均已通过：
image
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paddle-bot bot commented Jul 17, 2025

Thanks for your contribution!
@wanghuancoder wanghuancoder merged commit 783a967 into PFCCLab:main Jul 18, 2025
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