How to solve following CUDA error "matconvnet"?

cnn_train_dag_dcgan: resetting GPU

Error using gpuDevice (line 26)

An unexpected error occurred during CUDA execution. The CUDA error was:

CUDA_ERROR_UNKNOWN

Error in cnn_train_dag_dcgan>prepareGPUs (line 516)

    gpuDevice(opts.gpus)
Error in cnn_train_dag_dcgan (line 90
  prepareGPUs(opts, epoch == start+1) ;
Error in get_train_DCGAN (line 130)
[net, info] = cnn_train_dag_dcgan(net, imdb, @getBatchHdd, opts.train, ...
Error in main_start_dcgan (line 57)
get_train_DCGAN(opts.train);

Answer 1

[Joss Knight]

Unknown CUDA errors like this are nearly always due to a kernel timeout. If you have a graphics card that is driving your display, and are on Windows, you should disable kernel timeouts by setting the TdrLevel registry key to 0. See https://docs.microsoft.com/en-us/windows-hardware/drivers/display/tdr-registry-keys