lerp support 0 Tensor #49667
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lerp support 0 Tensor #49667
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zhwesky2010 reviewed Jan 10, 2023
| self.assertEqual(x1.grad.numpy(), 0) | ||
| self.assertEqual(x2.grad.numpy(), 0) | ||
| | ||
| def test_lerp(self): |
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这个API目前支持广播吗？如果支持的话就需要有0D+0D，0D+ND，ND+0D三种case
zhwesky2010 reviewed Jan 11, 2023
| DenseTensor* x_grad, | ||
| DenseTensor* y_grad) { | ||
| int rank = out.dims().size(); | ||
| PADDLE_ENFORCE_EQ( |
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这两个判断反向shape的判读是不是可以不加？不然静态图创建反向目前可能有问题
| y2.stop_gradient = False | ||
| out2 = paddle.lerp(x2, y2, w2) | ||
| | ||
| prog = paddle.static.default_main_program() |
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需要加paddle.static.append_backward，现在上面的判断跑反向应该会报错。.grad的shape现在会是[1]
zhwesky2010 reviewed Jan 12, 2023
| | ||
| prog = paddle.static.default_main_program() | ||
| res = self.exe.run(prog, fetch_list=[out0, out1, out2]) | ||
| self.assertEqual(res[0].shape, ()) |
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这个我试了下可以这么写，paddle.static.append_backward(out0.sum()) 前面out、x的梯度shape就都是正常的了，像动态图一样加下反向shape的测试吧
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done,thanks.
yjjiang11 pushed a commit to yjjiang11/Paddle that referenced this pull request Jan 13, 2023
* lerp support 0 Tensor * fix lerp grad * fix lerp zero test * fix 0D + ND/ND + 0D * fix check * update code * fix lerp infer shape * static backward test * updata static graph test
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Support input 0D Tensor for Lerp