错误使用 gpuDevice (line 26) Invalid CUDA device id: 3. Select a device id from the range 1:1.

Start using dagnn.DetLoss for loss
cnn_train_dag_hardmine: resetting GPU
错误使用 cnn_train_dag_hardmine>prepareGPUs (line 616)
Error detected on workers 3 4.

出错 cnn_train_dag_hardmine (line 132)
  prepareGPUs(opts, epoch == start+1) ;

出错 cnn_widerface (line 212)
[net, info] = trainFn(net, imdb, getBatchFn(batchGetter, opts, net.meta), ...

出错 hr_res101 (line 41)
    cnn_widerface('inputSize', inputSize, ...

原因:
    错误使用 gpuDevice (line 26)
    Invalid CUDA device id: 3. Select a device id from the range 1:1.
    错误使用 gpuDevice (line 26)
    Invalid CUDA device id: 4. Select a device id from the range 1:1.

[贝宁 竺]

这是怎么解决的呀

Answer 1

[埃博拉酱]

你只有一个GPU，但程序试图访问第3、4个GPU，就会有这种问题。