如何解决“RuntimeError：CUDA错误：无效的设备序号”？

Question

我正在尝试运行这段代码。我不知道它出了什么问题，但是这段代码没有运行。我不知道如何解决这个问题。

import cv2
from facial_emotion_recognition import EmotionRecognition

emotion_detector = EmotionRecognition(device='gpu', gpu_id=1)
camera = cv2.VideoCapture(0)

while True:
    image = camera.read()[1]
    image = emotion_detector.recognise_emotion(image, return_type='BGR')
    cv2.imshow('Camera', image)

    key = cv2.waitKey(1)
    if key == 27:
        break

camera.release()
cv2.destroyAllWindows()

但我收到此错误：

Traceback (most recent call last):
  File "/home/fahim/Documents/Python_projects/Python tutorials/pantech AI Master/Computer_Vision/Day 8 Face emotion recognition/emotion.py", line 4, in <module>
    emotion_detector = EmotionRecognition(device='gpu', gpu_id=1)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/facial_emotion_recognition/facial_emotion_recognition.py", line 25, in __init__
    self.network = NetworkV2(in_c=1, nl=32, out_f=7).to(self.device)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/torch/nn/modules/module.py", line 607, in to
    return self._apply(convert)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/torch/nn/modules/module.py", line 354, in _apply
    module._apply(fn)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/torch/nn/modules/module.py", line 354, in _apply
    module._apply(fn)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/torch/nn/modules/module.py", line 376, in _apply
    param_applied = fn(param)
  File "/home/fahim/anaconda3/envs/Computer_Vision/lib/python3.7/site-packages/torch/nn/modules/module.py", line 605, in convert
    return t.to(device, dtype if t.is_floating_point() else None, non_blocking)
RuntimeError: CUDA error: invalid device ordinal

Process finished with exit code 1

这是我的计算机配置： GPU：NVIDIA GeForce MX130 CPU：Intel i5-10210U (8) @ 4.200GHz 请帮我解决这个问题。

Answer 1

尝试改变：

emotion_detector = EmotionRecognition(device='gpu', gpu_id=1)

到：

emotion_detector = EmotionRecognition(device='gpu', gpu_id=0)

gpu_id仅当检测到多个 GPU 时才有效，您似乎只有一个 GPU，因此它会抛出错误，因为您告诉函数获取 GPU 2（因为我们从 0 开始计数）。