Check failed: error == cudaSuccess (30 vs. 0) unknown error *** Check failure stack trace: ***

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Check failed: error == cudaSuccess (30 vs. 0)  unknown error
*** Check failure stack trace: ***
    @     0x7fecadac1daa  (unknown)
    @     0x7fecadac1ce4  (unknown)
    @     0x7fecadac16e6  (unknown)
    @     0x7fecadac4687  (unknown)
    @     0x7fecae26162c  caffe::SyncedMemory::mutable_cpu_data()
    @     0x7fecae26a002  caffe::Blob<>::Reshape()
    @     0x7fecae26a499  caffe::Blob<>::Reshape()
    @     0x7fecae1725dc  caffe::ImagePairDataLayer<>::DataLayerSetUp()
    @     0x7fecae1a3d43  caffe::BasePrefetchingDataLayer<>::LayerSetUp()
    @     0x7fecae14990e  caffe::Net<>::Init()
    @     0x7fecae14a765  caffe::Net<>::Net()
    @     0x7fecae15320a  caffe::Solver<>::InitTrainNet()
    @     0x7fecae1537fc  caffe::Solver<>::Init()
    @     0x7fecae153b4a  caffe::Solver<>::Solver()
    @     0x7fecae0e9813  caffe::Creator_SGDSolver<>()
    @           0x40d297  caffe::SolverRegistry<>::CreateSolver()
    @           0x408561  train()
    @           0x405eac  main
    @     0x7fecac318f45  (unknown)
    @           0x4067b3  (unknown)
    @              (nil)  (unknown)
已放弃 (核心已转储)

解决方法：在命令行前面加 sudo