Hi guys, I followed the instructions from here:
http://elinux.org/Jetson/Installing_OpenCV
With the exception that I built OpenCV v3.1 and also opencv_contrib.
I could run the cpp samples - edges.cpp without any problem.
However, when I run gpu sample, I am encountering this error:
**<-----COMMAND HERE -->**
ubuntu@tegra-ubuntu:~/opencv3/opencv/samples/gpu$ ./houghlines ../data/pic1.png
**<-----OUTPUT HERE -->**
CPU Time : 7.13239 ms
CPU Found : 12
OpenCV Error: Gpu API call (invalid device symbol) in buildPointList_gpu, file /home/ubuntu/opencv3/opencv/modules/cudaimgproc/src/cuda/build_point_list.cu, line 116
terminate called after throwing an instance of 'cv::Exception'
what(): /home/ubuntu/opencv3/opencv/modules/cudaimgproc/src/cuda/build_point_list.cu:116: error: (-217) invalid device symbol in function buildPointList_gpu
Aborted
**<------ END OUTPUT ------>**
I have checked that my CUDA in nvidia TX1 is actually working by running NVIDIA Cuda 7.0 samples.
**<---- Nvidia TX1 deviceQuery ----->**
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "GM20B"
CUDA Driver Version / Runtime Version 7.0 / 7.0
CUDA Capability Major/Minor version number: 5.3
Total amount of global memory: 3854 MBytes (4041023488 bytes)
( 2) Multiprocessors, (128) CUDA Cores/MP: 256 CUDA Cores
GPU Max Clock rate: 72 MHz (0.07 GHz)
Memory Clock rate: 13 Mhz
Memory Bus Width: 64-bit
L2 Cache Size: 262144 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(65536), 2D=(65536, 65536), 3D=(4096, 4096, 4096)
Maximum Layered 1D Texture Size, (num) layers 1D=(16384), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(16384, 16384), 2048 layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
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: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 2 copy engine(s)
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 / Bus ID / location ID: 0 / 0 / 0
Compute Mode:
< Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 7.0, CUDA Runtime Version = 7.0, NumDevs = 1,
Device0 = GM20B
Result = PASS
**<--- END Nvidia TX1 device Query ---->**
Thanks guys for helping!
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