The Hello World sample application shows how to initialize the NVIDIA® DriveWorks SDK context and access GPU properties. This sample application prints the DriveWorks version and GPU properties.
The command line for the sample application is:
./sample_hello_world
The sample application prints the following information on console:
nvidia@tegra-ubuntu:/usr/local/driveworks/bin$ ./sample_hello_world ************************************************* Welcome to DriveWorks SDK [31-7-2018 9:8:24] Initialize DriveWorks SDK v1.2.227 [31-7-2018 9:8:24] Release build with GNU 4.9.4 from v1.2.0-rc6-0-g79beb2a against Vibrante PDK v5.0.10.3 [31-7-2018 9:8:24] Platform: Detected Drive PX2 - Tegra A [31-7-2018 9:8:24] TimeSource: monotonic epoch time offset is 1532010806746835 [31-7-2018 9:8:24] TimeSource: PTP ioctl returned error. Synchronized time will not be available. [31-7-2018 9:8:24] TimeSource: Could not detect valid PTP time source at 'eth0'. Fallback to CLOCK_MONOTONIC. [31-7-2018 9:8:25] Platform: number of GPU devices detected 2 [31-7-2018 9:8:25] Platform: currently selected GPU device discrete ID 0 [31-7-2018 9:8:25] SDK: Resources mounted from /usr/local/driveworks-1.2/data/resources [31-7-2018 9:8:25] SDK: Create NvMediaDevice [31-7-2018 9:8:25] SDK: Create NvMediaIPPManager [31-7-2018 9:8:25] egl::Display: found 2 EGL devices [31-7-2018 9:8:25] egl::Display: use drm device: drm-nvdc Context of Driveworks SDK successfully initialized. Version: 1.2.227 GPU devices detected: 2 [31-7-2018 9:8:25] Platform: currently selected GPU device discrete ID 0 [31-7-2018 9:8:25] Platform: currently selected GPU device discrete ID 0 ---------------------------------------------- Device: 0, DRIVE PX 2 AutoChauffeur CUDA Driver Version / Runtime Version : 9.2 / 9.2 CUDA Capability Major/Minor version number: 6.1 Total amount of global memory in MBytes:3839.94 Memory Clock rate Ghz: 3003000 Memory Bus Width bits: 128 L2 Cache Size: 1048576 Maximum 1D Texture Dimension Size (x): 131072 Maximum 2D Texture Dimension Size (x,y): 131072, 65536 Maximum 3D Texture Dimension Size (x,y,z): 16384, 16384, 16384 Maximum Layered 1D Texture Size, (x): 32768 num: 2048 Maximum Layered 2D Texture Size, (x,y): 32768, 32768 num: 2048 Total amount of constant memory bytes: 65536 Total amount of shared memory per block bytes: 49152 Total number of registers available per block: 65536 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): 1024,1024,64 Max dimension size of a grid size (x,y,z): 2147483647,65535,65535 Maximum memory pitch bytes: 2147483647 Texture alignment bytes: 512 Concurrent copy and kernel execution: Yes, copy engines num: 2 Run time limit on kernels: No Integrated GPU sharing Host Memory: No Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID: 0, Device PCI Bus ID: 4, Device PCI location ID: 0 Compute Mode: Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) Concurrent kernels: 1 Concurrent memory: 0 [31-7-2018 9:8:25] Platform: currently selected GPU device integrated ID 1 [31-7-2018 9:8:25] Platform: currently selected GPU device integrated ID 1 ---------------------------------------------- Device: 1, NVIDIA Tegra X2 CUDA Driver Version / Runtime Version : 9.2 / 9.2 CUDA Capability Major/Minor version number: 6.2 Total amount of global memory in MBytes:6401.58 Memory Clock rate Ghz: 1600000 Memory Bus Width bits: 128 L2 Cache Size: 524288 Maximum 1D Texture Dimension Size (x): 131072 Maximum 2D Texture Dimension Size (x,y): 131072, 65536 Maximum 3D Texture Dimension Size (x,y,z): 16384, 16384, 16384 Maximum Layered 1D Texture Size, (x): 32768 num: 2048 Maximum Layered 2D Texture Size, (x,y): 32768, 32768 num: 2048 Total amount of constant memory bytes: 65536 Total amount of shared memory per block bytes: 49152 Total number of registers available per block: 32768 Warp size: 32 Maximum number of threads per multiprocessor: 2048 Maximum number of threads per block: 1024 Max dimension size of a thread block (x,y,z): 1024,1024,64 Max dimension size of a grid size (x,y,z): 2147483647,65535,65535 Maximum memory pitch bytes: 2147483647 Texture alignment bytes: 512 Concurrent copy and kernel execution: Yes, copy engines num: 1 Run time limit on kernels: No Integrated GPU sharing Host Memory: Yes Support host page-locked memory mapping: Yes Alignment requirement for Surfaces: Yes Device has ECC support: Disabled Device supports Unified Addressing (UVA): Yes Device PCI Domain ID: 0, Device PCI Bus ID: 0, Device PCI location ID: 0 Compute Mode: Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) Concurrent kernels: 1 Concurrent memory: 0 [31-7-2018 9:8:25] SDK: Release NvMediaDevice [31-7-2018 9:8:25] Driveworks SDK released [31-7-2018 9:8:25] SDK: Release NvMedia2D Happy autonomous driving!
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