Problems with GPU device selection

Autonomous Vehicles DRIVE PX 2 DriveWorks
1

Hi. I was trying to run the dnn detector sample on the iGPU.
I tried the two provided methods to select GPU device.
Setting the environment variable CUDA_VISIBLE_DEVICES=1 ended up correctly. But the dwContext_selectGPUDevice() method ended up with error. It appears that something is wrong with the ImageStreamer. I checked the ImageStreamer sample and it ended up with the same error.
I simply add dwContext_selectGPUDevice(gpuindex,m_sdk) after the initialization of the context.
I wonder why this is happening. How to use dwContext_selectGPUDevice() correctly?
Thank you so much!

Driveworks exception thrown: DW_CUDA_ERROR: ImageStreamer(CUDA->GL): cannot register GLtexture as resource : operation notsupported
2

Dear Leostriker,

Please refer to below example.

In drivenet source code, please add below BOLD part and try to test.

/// -----------------------------
    /// Initialize Logger and DriveWorks context
    /// -----------------------------
    void initializeDriveWorks(dwContextHandle_t& context) const
    {
        // initialize logger to print verbose message on console in color
        CHECK_DW_ERROR(dwLogger_initialize(getConsoleLoggerCallback(true)));
        CHECK_DW_ERROR(dwLogger_setLogLevel(DW_LOG_VERBOSE));

        // initialize SDK context, using data folder
        dwContextParameters sdkParams = {};
        sdkParams.dataPath            = DataPath::get_cstr();

        #ifdef VIBRANTE
        sdkParams.eglDisplay = getEGLDisplay();
        #endif

        CHECK_DW_ERROR(dwInitialize(&context, DW_VERSION, &sdkParams));
[b]        dwContext_selectGPUDevice(1, context);
        CHECK_DW_ERROR(dwSAL_initialize(&sal, context));[/b]
    }
3

Hi.

I’ve tried your code and it still ends up with the same error. If you mean initialize SAL after selecting GPU, it is exactly what i did before.

4

Hi Leostriker,

Have you got the answer you need to move this issue forward or still waiting our suggestions?
Please update the status then we can know how to support you.

Thanks