assert cupy is not None, 'CuPy is not installed!

[pangyanhua]

assert cupy is not None, 'CuPy is not installed!

[pangyanhua]

how can i solve it? thx!

[pangyanhua]

我按照requirement安装的库，Python 3.7.16

[ZK-Zhou]

pip install cupy

[pangyanhua]

pip install cupy==10.3.1 ，pip install cupy都是报一样的错误。

[ZK-Zhou]

What kind of error did you get？

[pangyanhua]

ssh://[email protected]:23735/opt/conda/envs/py37/bin/python -u /home/u21b961009/jupyterlab/spikformer-main/imagenet/train.py
INFO🚋Training with a single process on 1 GPUs.
Training with a single process on 1 GPUs.
Traceback (most recent call last):
File "/home/u21b961009/jupyterlab/spikformer-main/imagenet/train.py", line 804, in
main()
File "/home/u21b961009/jupyterlab/spikformer-main/imagenet/train.py", line 353, in main
drop_block_rate=None,
File "/home/u21b961009/.local/lib/python3.7/site-packages/timm/models/factory.py", line 74, in create_model
model = create_fn(pretrained=pretrained, **kwargs)
File "/home/u21b961009/jupyterlab/spikformer-main/imagenet/model.py", line 254, in spikformer
**kwargs
File "/home/u21b961009/jupyterlab/spikformer-main/imagenet/model.py", line 195, in init
embed_dims=embed_dims)
File "/home/u21b961009/jupyterlab/spikformer-main/imagenet/model.py", line 125, in init
self.proj_lif = MultiStepLIFNode(tau=2.0, detach_reset=True, backend='cupy')
File "/home/u21b961009/.local/lib/python3.7/site-packages/spikingjelly/clock_driven/neuron.py", line 823, in init
check_backend(backend)
File "/home/u21b961009/.local/lib/python3.7/site-packages/spikingjelly/clock_driven/neuron.py", line 30, in check_backend
assert cupy is not None, 'CuPy is not installed! You can install it from "https://github.com/cupy/cupy".'
AssertionError: CuPy is not installed! You can install it from "https://github.com/cupy/cupy".
还是这个错误。但是换成torch后端就没问题了。感觉是spikingjelly中的check_backend函数的问题

[932179209]

Same error.
Fixed it by install the proper version of cupy with the CUDA version.

[Castrol68]

您好，我也遇到了这个问题，请问您解决了么

[ClementZhu]

同样遇到这个问题，请问没有使用cupy后端的方法吗