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PFCCPaddle Framework Contributor Club,https://github.com/PaddlePaddle/community/tree/master/pfccPaddle Framework Contributor Club,https://github.com/PaddlePaddle/community/tree/master/pfccstatus/close已关闭已关闭type/bug-report报bug报bug
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bug描述 Describe the Bug
matrix_exp API 与 torch 在特定数值下存在精度差异
AI4S 实现 e3nn 库时,在单测中发现 paddle 的 matrix_exp API 与 torch 在特定数值下存在精度差异,导致单测失败。期望能够实现 bitwise equal
版本: paddle==3.2.0, torch==2.8.0+cu126
硬件: H200
复现单测:
import paddle
import torch
import numpy as np
a = np.array([[2.74944162]])
b = np.array([[ 0. , 0. , 0.99999994],
[ 0. , 0. , 0. ],
[-0.99999994, 0. , 0. ]])
a_pd = paddle.to_tensor(a).astype(paddle.float32)
b_pd = paddle.to_tensor(b).astype(paddle.float32)
res_pd = paddle.linalg.matrix_exp(a_pd*b_pd)
a_pt = torch.from_numpy(a).to(dtype=torch.float32, device='cpu')
b_pt = torch.from_numpy(b).to(dtype=torch.float32, device='cpu')
res_pt = torch.matrix_exp(a_pt*b_pt)
print(res_pd)
print(res_pt)
np.testing.assert_equal(res_pd.numpy(), res_pt.cpu())运行结果:
其他补充信息 Additional Supplementary Information
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PFCCPaddle Framework Contributor Club,https://github.com/PaddlePaddle/community/tree/master/pfccPaddle Framework Contributor Club,https://github.com/PaddlePaddle/community/tree/master/pfccstatus/close已关闭已关闭type/bug-report报bug报bug