Hello World Sample#
Description#
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.
Running the Sample#
The command line for the sample is:
./sample_hello_world
Output#
The sample application prints the following information on console:
*************************************************
Welcome to DriveWorks SDK
[00-00-0000 00:00:00] Platform: Detected P3960 DDPT Platform
[00-00-0000 00:00:00] TimeSource: monotonic epoch time offset is 0000000000000000
[00-00-0000 00:00:00] TimeSource: Could not detect valid PTP time source at nvpps. Fallback to eth0
[00-00-0000 00:00:00] TimeSource Eth: PTP ioctl returned error. Synchronized time will not be available from this timesource.
[00-00-0000 00:00:00] TimeSource: Could not detect valid PTP time source at 'eth0'. Fallback to CLOCK_MONOTONIC.
[00-00-0000 00:00:00] Platform: number of GPU devices detected 1
[00-00-0000 00:00:00] Platform: currently selected GPU device integrated ID 0
[00-00-0000 00:00:00] Platform: currently selected GPU device integrated ID 0
[00-00-0000 00:00:00] Platform: currently selected GPU device integrated ID 0
[00-00-0000 00:00:00] Context::findDataRootInPathWalk data/DATA_ROOT found at: /usr/local/driveworks/data
[00-00-0000 00:00:00] Context::mountResourceCandidateDataPath resource FAILED to mount from '/usr/local/driveworks/data/': VirtualFileSystem: Failed to mount '/usr/local/driveworks/data/[.pak]'
[00-00-0000 00:00:00] SDK: No resources(.pak) mounted, some modules will not function properly
[00-00-0000 00:00:00] egl::Display: found 1 EGL devices
[00-00-0000 00:00:00] egl::Display: use drm device: drm-nvdc
[00-00-0000 00:00:00] TimeSource: monotonic epoch time offset is 0000000000000000
[00-00-0000 00:00:00] TimeSource: Could not detect valid PTP time source at nvpps. Fallback to eth0
[00-00-0000 00:00:00] TimeSource Eth: PTP ioctl returned error. Synchronized time will not be available from this timesource.
[00-00-0000 00:00:00] TimeSource: Could not detect valid PTP time source at 'eth0'. Fallback to CLOCK_MONOTONIC.
[00-00-0000 00:00:00] Initialize DriveWorks SDK v0.0.0.0
[00-00-0000 00:00:00] Release build with GNU 0.0.0 from no-gitversion-build against Drive PDK v0.0.0.0
Context of DriveWorks SDK successfully initialized.
Version: 0.0.0.0
GPU devices detected: 1
[00-00-0000 00:00:00] Platform: currently selected GPU device integrated ID 0
----------------------------------------------
Device: 0, Graphics Device
CUDA Driver Version / Runtime Version : 0.0 / 0.0
CUDA Capability Major/Minor version number: 0.0
Total amount of global memory in MBytes:29012.6
Memory Clock rate Khz: 892000
Memory Bus Width bits: 128
L2 Cache Size: 4194304
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: 1536
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: 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
[00-00-0000 00:00:00] Releasing DriveWorks SDK Context
Happy autonomous driving!
Additional information#
For more details see: