How to know opencv is optimized for Jetson TX2

Robotics & Edge Computing Jetson & Embedded Systems Jetson TX2
1

Hi,

I flashed Jetson TX2 board with JetPack 3.3 version. Jetpack software installed openCV 3.3.1 version on TX2 device.
How to know, openCV installed in TX2 is optimized & accelerated. I would like to run filter2D function and measure performance on Jetson TX2 board.

Following build information of OpenCV in my device:
General configuration for OpenCV 3.3.1 =====================================
Version control: 3.3.1

Platform:
Timestamp: 2017-11-13T07:18:22Z
Host: Linux 4.4.38-tegra aarch64
CMake: 2.8.12.2
CMake generator: Unix Makefiles
CMake build tool: /usr/bin/make
Configuration: Release

CPU/HW features:
Baseline: NEON FP16
required: NEON
disabled: VFPV3

C/C++:
Built as dynamic libs?: YES
C++ Compiler: /usr/bin/c++ (ver 5.4.0)
C++ flags (Release): -D _GLIBCXX_USE_CXX11_ABI=0 -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
C++ flags (Debug): -D _GLIBCXX_USE_CXX11_ABI=0 -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winit-self -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
C Compiler: /usr/bin/cc
C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wuninitialized -Winit-self -Wno-narrowing -Wno-comment -fdiagnostics-show-option -pthread -fomit-frame-pointer -ffunction-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
Linker flags (Release):
Linker flags (Debug):
ccache: NO
Precompiled headers: NO
Extra dependencies: dl m pthread rt /usr/lib/aarch64-linux-gnu/libtbb.so
3rdparty dependencies:

OpenCV modules:
To be built: core flann imgproc ml objdetect photo video dnn imgcodecs shape videoio highgui superres ts features2d calib3d stitching videostab python2
Disabled: js world
Disabled by dependency: -
Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev java python3 viz

GUI:
QT: NO
GTK+ 2.x: YES (ver 2.24.30)
GThread : YES (ver 2.48.2)
GtkGlExt: NO
OpenGL support: NO
VTK support: NO

Media I/O:
ZLib: /usr/lib/aarch64-linux-gnu/libz.so (ver 1.2.8)
JPEG: /usr/lib/aarch64-linux-gnu/libjpeg.so (ver )
WEBP: build (ver encoder: 0x020e)
PNG: /usr/lib/aarch64-linux-gnu/libpng.so (ver 1.2.54)
TIFF: /usr/lib/aarch64-linux-gnu/libtiff.so (ver 42 - 4.0.6)
JPEG 2000: /usr/lib/aarch64-linux-gnu/libjasper.so (ver 1.900.1)
OpenEXR: NO
GDAL: NO
GDCM: NO

Video I/O:
DC1394 1.x: NO
DC1394 2.x: NO
FFMPEG: YES
avcodec: YES (ver 56.60.100)
avformat: YES (ver 56.40.101)
avutil: YES (ver 54.31.100)
swscale: YES (ver 3.1.101)
avresample: NO
GStreamer: NO
OpenNI: NO
OpenNI PrimeSensor Modules: NO
OpenNI2: NO
PvAPI: NO
GigEVisionSDK: NO
Aravis SDK: NO
UniCap: NO
UniCap ucil: NO
V4L/V4L2: NO/YES
XIMEA: NO
Xine: NO
Intel Media SDK: NO
gPhoto2: NO

Parallel framework: TBB (ver 4.4 interface 9002)

Trace: YES ()

Other third-party libraries:
Use Intel IPP: NO
Use Intel IPP IW: NO
Use VA: NO
Use Intel VA-API/OpenCL: NO
Use Lapack: NO
Use Eigen: YES (ver 3.2.92)
Use Cuda: NO
Use OpenCL: NO
Use OpenVX: NO
Use custom HAL: YES (carotene (ver 0.0.1))

Python 2:
Interpreter: /usr/bin/python2.7 (ver 2.7.12)
Libraries: /usr/lib/aarch64-linux-gnu/libpython2.7.so (ver 2.7.12)
numpy: /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.11.0)
packages path: lib/python2.7/dist-packages

Python 3:
Interpreter: /usr/bin/python3 (ver 3.5.1)

Python (for build): /usr/bin/python2.7

Java:
ant: NO
JNI: NO
Java wrappers: NO
Java tests: NO

Matlab: Matlab not found or implicitly disabled

Documentation:
Doxygen: NO

Tests and samples:
Tests: YES
Performance tests: YES
C/C++ Examples: YES

Install path: /usr

cvconfig.h is in: /home/nvidia/build-opencv/build

Best Regards,
Naveen

2

Hi Naveen,

Your OpenCV isn’t using the TX2 GPU, it can be seen in the following flag on your report:

Use Cuda: NO

When you are configuring your build with CMake you need the add the following flags:

cmake -D  \
    -D WITH_CUDA=ON \
    -D ENABLE_FAST_MATH=1 \
    -D CUDA_FAST_MATH=1 \
    -D WITH_CUBLAS=1