import paddle
import paddle.nn as nn
embedding=nn.Embedding(3,2,sparse=True)
embedding.weight.set_value(paddle.arange(6).reshape((3,2)).astype('float32'))
data=paddle.to_tensor((0,1))
out=embedding(data)
y=out.sum()*2
y.backward()
print(embedding.weight.grad) #这行还可以改为print(embedding.weight.gradient())

W1201 12:24:43.693264  4996 gpu_resources.cc:119] Please NOTE: device: 0, GPU Compute Capability: 7.5, Driver API Version: 12.6, Runtime API Version: 12.3
W1201 12:24:43.694262  4996 gpu_resources.cc:164] device: 0, cuDNN Version: 9.0.
Tensor(Not initialized)
(.venv)