遇到的报错:
packages\torch\cuda\init.py:435: UserWarning: Found GPU0 NVIDIA GeForce RTX 5070 Ti Laptop GPU which is of cuda capability 12.0. Minimum and Maximum cuda capability supported by this version of PyTorch is (5.0) - (9.0) queued_call() D:\my_programs\Anconda\conda_envs\rec\lib\site-packages\torch\cuda\init.py:435: UserWarning: Please install PyTorch with a following CUDA configurations: 12.8 13.0 following instructions at https://pytorch.org/get-started/locally/ queued_call() D:\my_programs\Anconda\conda_envs\rec\lib\site-packages\torch\cuda\init.py:435: UserWarning: NVIDIA GeForce RTX 5070 Ti Laptop GPU with CUDA capability sm_120 is not compatible with the current PyTorch installation. The current PyTorch install supports CUDA capabilities sm_50 sm_60 sm_61 sm_70 sm_75 sm_80 sm_86 sm_90. If you want to use the NVIDIA GeForce RTX 5070 Ti Laptop GPU GPU with PyTorch, please check the instructions at https://pytorch.org/get-started/locally/ queued_call()
5070ti 与 pytorch 版本不兼容,cuda 与 pytorch 不兼容
核心宗旨是确保:
nvidia-smi查到的可容纳的最大cuda的版本>=cuda版本>=pytorch版本
比如:

我查到的是12.8,那么我的cuda也下载12.8
接下来 pytorch 在Get Started中选择12.8的nightly,进入所给pip里面的链接
下载torch, torchvision( torchvision要比torch日期晚一天)到本地,然后:pip install 本地的下载路径
比如我的是:torchvision-0.25.0.dev20251124 +cu128-cp310-cp310-win_amd64.whl和orch- 2.10.0.dev20251123+cu128-cp310-cp310-win_amd64.whl
测试文件:
import torch print(torch.cuda.is_available()) # 应该返回 True print(torch.cuda.current_device()) # 获取当前设备 print(torch.cuda.get_device_name(0)) # 获取第一个 GPU 的名字 print(torch.cuda.get_arch_list()) # 应包含'sm_120'
成功有了sm_120:
