Out of memory error during build

[remiruzn]

How can i install openCV with cuda support on Jetson nano with 16 gb sd card inside? If i try use script not enough memory error appear.

[mdegans]

Try building without the gui on. To switch to the command line:

Temporary:

sudo systemctl isolate multi-user.target

Persistent across reboots:

sudo systemctl set-default multi-user.target

Once the build is done, just substitute graphical.target instead of multi-user.target to go back.

[remiruzn]

`
[ 43%] Built target opencv_alphamat
[ 43%] Linking CXX shared library ../../lib/libopencv_cudafilters.so
[ 45%] Built target opencv_cudafilters
[ 46%] Building NVCC (Device) object modules/cudaimgproc/CMakeFiles/cuda_compile_1.dir/src/cuda/cuda_compile_1_generated_bilateral_filter.cu.o
: fatal error: when writing output to /tmp/tmpxft_000078b9_00000000-5_bilateral_filter.cpp4.ii: No space left on device
compilation terminated.
CMake Error at cuda_compile_1_generated_bilateral_filter.cu.o.RELEASE.cmake:221 (message):
Error generating
/tmp/build_opencv/opencv/build/modules/cudaimgproc/CMakeFiles/cuda_compile_1.dir/src/cuda/./cuda_compile_1_generated_bilateral_filter.cu.o

modules/cudaimgproc/CMakeFiles/opencv_cudaimgproc.dir/build.make:337: recipe for target 'modules/cudaimgproc/CMakeFiles/cuda_compile_1.dir/src/cuda/cuda_compile_1_generated_bilateral_filter.cu.o' failed
make[2]: *** [modules/cudaimgproc/CMakeFiles/cuda_compile_1.dir/src/cuda/cuda_compile_1_generated_bilateral_filter.cu.o] Error 1
CMakeFiles/Makefile2:3695: recipe for target 'modules/cudaimgproc/CMakeFiles/opencv_cudaimgproc.dir/all' failed
make[1]: *** [modules/cudaimgproc/CMakeFiles/opencv_cudaimgproc.dir/all] Error 2
Makefile:162: recipe for target 'all' failed
make: *** [all] Error 2
Do you wish to remove temporary build files in /tmp/build_opencv ?
`
Building without gui.
Can i build jetson with 16 gb sd card inside from flash card pluged in usb port?

[mdegans]

@remiruzn

You could add a swap file on an external disk, even usb, sure, but it will probably build slower than just turning the GUI off temporarily. Swap is slow on fast SSDs. MicroSD cards are generally even slower than spinning disks, so it'll probably hurt performance if you set that up.