1 # Copyright (c) 2021-2022, NVIDIA CORPORATION. All rights reserved.
3 @page dwx_hello_world_sample Hello World Sample
6 @section dwx_hello_world_description Description
8 The Hello World sample application shows how to initialize the NVIDIA<sup>®</sup> DriveWorks SDK
9 context and access GPU properties. This sample application prints the DriveWorks version and
12 @section dwx_hello_world_running Running the Sample
14 The command line for the sample application is:
18 @section dwx_hello_world_output Output
20 The sample application prints the following information on console:
23 *************************************************
24 Welcome to Driveworks SDK
25 [27-07-2021 01:50:42] Platform: Detected DDPX - Tegra A
26 [27-07-2021 01:50:42] TimeSource: monotonic epoch time offset is 1626982515910358
27 [27-07-2021 01:50:42] PTP Time is available from NVPPS Driver
28 [27-07-2021 01:50:42] Platform: number of GPU devices detected 2
29 [27-07-2021 01:50:42] Platform: currently selected GPU device discrete ID 0
30 [27-07-2021 01:50:42] Context::mountResourceCandidateDataPath resource FAILED to mount from '/usr/local/driveworks-4.0/bin/data/': VirtualFileSystem: Failed to mount '/usr/local/driveworks-4.0/bin/data/[.pak]'
31 [27-07-2021 01:50:42] Context::findDataRootInPathWalk data/DATA_ROOT found at: /usr/local/driveworks-4.0/bin/../data
32 [27-07-2021 01:50:42] Context::mountResourceCandidateDataPath VirtualFileSystem mounted from '/usr/local/driveworks-4.0/bin/../data/'
33 [27-07-2021 01:50:42] SDK: Resources mounted from /usr/local/driveworks-4.0/bin/../data/
34 [27-07-2021 01:50:42] SDK: Create NvMediaDevice
35 [27-07-2021 01:50:42] SDK: Create NvMedia2D
36 [27-07-2021 01:50:42] egl::Display: found 2 EGL devices
37 [27-07-2021 01:50:42] egl::Display: use drm device: drm-nvdc
38 [27-07-2021 01:50:43] Initialize DriveWorks SDK v4.0.-1-experimental
39 [27-07-2021 01:50:43] Experimental Release build with GNU 7.3.1 from no-gitversion-build against Drive PDK v5.1.15.2
40 Context of Driveworks SDK successfully initialized.
42 GPU devices detected: 2
43 [27-07-2021 01:50:43] Platform: currently selected GPU device discrete ID 0
44 ----------------------------------------------
45 Device: 0, Graphics Device
46 CUDA Driver Version / Runtime Version : 10.2 / 10.2
47 CUDA Capability Major/Minor version number: 7.5
48 Total amount of global memory in MBytes:7679.94
49 Memory Clock rate Khz: 1440000
50 Memory Bus Width bits: 256
51 L2 Cache Size: 4194304
52 Maximum 1D Texture Dimension Size (x): 131072
53 Maximum 2D Texture Dimension Size (x,y): 131072, 65536
54 Maximum 3D Texture Dimension Size (x,y,z): 16384, 16384, 16384
55 Maximum Layered 1D Texture Size, (x): 32768 num: 2048
56 Maximum Layered 2D Texture Size, (x,y): 32768, 32768 num: 2048
57 Total amount of constant memory bytes: 65536
58 Total amount of shared memory per block bytes: 49152
59 Total number of registers available per block: 65536
61 Maximum number of threads per multiprocessor: 1024
62 Maximum number of threads per block: 1024
63 Max dimension size of a thread block (x,y,z): 1024,1024,64
64 Max dimension size of a grid size (x,y,z): 2147483647,65535,65535
65 Maximum memory pitch bytes: 2147483647
66 Texture alignment bytes: 512
67 Concurrent copy and kernel execution: Yes, copy engines num: 3
68 Run time limit on kernels: No
69 Integrated GPU sharing Host Memory: No
70 Support host page-locked memory mapping: Yes
71 Alignment requirement for Surfaces: Yes
72 Device has ECC support: Disabled
73 Device supports Unified Addressing (UVA): Yes
74 Device PCI Domain ID: 1, Device PCI Bus ID: 1, Device PCI location ID: 0
75 Compute Mode: Default (multiple host threads can use ::cudaSetDevice() with device simultaneously)
79 [27-07-2021 01:50:43] Platform: currently selected GPU device integrated ID 1
80 ----------------------------------------------
82 CUDA Driver Version / Runtime Version : 10.2 / 10.2
83 CUDA Capability Major/Minor version number: 7.2
84 Total amount of global memory in MBytes:28409.2
85 Memory Clock rate Khz: 1109000
86 Memory Bus Width bits: 256
88 Maximum 1D Texture Dimension Size (x): 131072
89 Maximum 2D Texture Dimension Size (x,y): 131072, 65536
90 Maximum 3D Texture Dimension Size (x,y,z): 16384, 16384, 16384
91 Maximum Layered 1D Texture Size, (x): 32768 num: 2048
92 Maximum Layered 2D Texture Size, (x,y): 32768, 32768 num: 2048
93 Total amount of constant memory bytes: 65536
94 Total amount of shared memory per block bytes: 49152
95 Total number of registers available per block: 65536
97 Maximum number of threads per multiprocessor: 2048
98 Maximum number of threads per block: 1024
99 Max dimension size of a thread block (x,y,z): 1024,1024,64
100 Max dimension size of a grid size (x,y,z): 2147483647,65535,65535
101 Maximum memory pitch bytes: 2147483647
102 Texture alignment bytes: 512
103 Concurrent copy and kernel execution: Yes, copy engines num: 1
104 Run time limit on kernels: No
105 Integrated GPU sharing Host Memory: Yes
106 Support host page-locked memory mapping: Yes
107 Alignment requirement for Surfaces: Yes
108 Device has ECC support: Disabled
109 Device supports Unified Addressing (UVA): Yes
110 Device PCI Domain ID: 0, Device PCI Bus ID: 0, Device PCI location ID: 0
111 Compute Mode: Default (multiple host threads can use ::cudaSetDevice() with device simultaneously)
112 Concurrent kernels: 1
115 [27-07-2021 01:50:43] Releasing Driveworks SDK Context
116 [27-07-2021 01:50:43] SDK: Release NvMediaDevice
117 [27-07-2021 01:50:43] SDK: Release NvMedia2D
118 Happy autonomous driving!
120 @section dwx_hello_world_more Additional information
122 For more details see:
123 - @ref dwx_hello_world
124 - @ref core_mainsection