Update for training

Edmond Yoo

2018-09-14 8eb0d400e80f3dd135313834ce103bd0f9e62dbc

 src/darknet.c

@@ -377,6 +377,7 @@
#else
    if(gpu_index >= 0){
        cuda_set_device(gpu_index);
        check_error(cudaSetDeviceFlags(cudaDeviceScheduleBlockingSync));
    }
#endif