TORCH_CHECK(p, "PyTorch is not linked with support for ", type, " devices");处异常

这段代码是 PyTorch 中的一个宏定义，用于检查 PyTorch 是否支持指定设备类型。如果 PyTorch 没有与指定设备类型链接，则会触发异常。可能的原因是 PyTorch 编译时没有链接对应的设备库，或者设备驱动程序没有正确安装。需要检查 PyTorch 的编译配置和设备驱动程序是否正确安装。

相关问题

E:\anaconda\envs\pytorch-1.8.1\lib\site-packages\torch\cuda\nccl.py:16: UserWarning: PyTorch is not compiled with NCCL support warnings.warn('PyTorch is not compiled with NCCL support')

这个警告信息表示你使用的PyTorch版本没有集NCCL支持。NCCL是NVIDIA Collective Communications Library简称，它是用于高性计算集群中的多GPU通信的库。如果你需要在多个GPU上进行并行计算或通信操作，建议使用编译了NCCL支持的PyTorch版本。

要解决此问题，你可以尝试以下几个步骤：
1. 确保你的PyTorch版本是编译了NCCL支持的最新版本。你可以在PyTorch官方网站上下载最新版本的PyTorch。
2. 如果你已经安装了最新版本的PyTorch但仍然遇到此问题，可能是由于安装时缺少NCCL库或库文件路径配置不正确导致的。你可以尝试重新安装PyTorch，或者查看PyTorch文档或社区论坛获取更详细的安装指南和解决方案。
3. 如果你不需要使用多GPU通信功能，可以忽略此警告信息。它不会影响PyTorch的其他功能和性能。

希望以上信息能对你有所帮助！如果你有其他问题，请随时提问。

Could not build wheels for torch_cluster, which is required to install pyproject.toml-based projects

I see that you're encountering an issue with building wheels for `torch_cluster`. This error usually occurs when there are missing dependencies or compatibility issues. Here are a few steps you can try to resolve this problem:

1. Make sure you have the latest version of `pip` and `setuptools` installed:

   pip install --upgrade pip setuptools

2. Check if you have all the necessary dependencies installed. In this case, ensure that you have the required dependencies for `torch_cluster` such as CUDA, PyTorch, and the correct versions of other related packages.

3. Verify that you have a compatible version of `torch_cluster` for your system. You can check the official documentation or the PyPI page to ensure compatibility with your Python version and other dependencies.

4. If you are using a virtual environment, try creating a fresh environment and installing the packages again. Sometimes, conflicts between different packages can cause build issues.

5. In case you're using Windows, make sure you have Microsoft Visual C++ Build Tools installed. You can download them from the official Microsoft website.

If these steps don't resolve the issue, please provide more details about your environment (e.g., operating system, Python version) and any error messages you receive during installation.