chinakook commented on issue #19649:
URL:
https://github.com/apache/incubator-mxnet/issues/19649#issuecomment-751439240
A torch test case. Torch has lower difference between 2080Ti and 3090.
However, MXNet will have difference up to 0.3 in some cases.
```python
import torch
import torchvision as tv
torch.backends.cudnn.benchmark=True
model = tv.models.resnet18(pretrained=True)
model.cuda(0)
model.eval()
# y is always 948.1921 on CPU
# y is always 948.1919 on RTX2080Ti whenever cudnn.benchmark is True or
False
# y is 948.19165 on RTX3090 when cudnn.benchmark=False
# y varies on RTX3090 when cudnn.benchmark=True: 948.19147, 948.1919
x = torch.ones(1,3,224,224).cuda(0)
y = model(x)
y = y.abs().sum()
print(y.detach().cpu().numpy())
```
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