pub const cudaErrorSetOnActiveProcess: cudaError = 708;Expand description
This indicates that the user has called ::cudaSetValidDevices(), ::cudaSetDeviceFlags(), ::cudaD3D9SetDirect3DDevice(), ::cudaD3D10SetDirect3DDevice, ::cudaD3D11SetDirect3DDevice(), or ::cudaVDPAUSetVDPAUDevice() after initializing the CUDA runtime by calling non-device management operations (allocating memory and launching kernels are examples of non-device management operations). This error can also be returned if using runtime/driver interoperability and there is an existing ::CUcontext active on the host thread.