Build fails due CUDNN (Xavier NX, JP 4.4.1) - ODC Darknet fork getting old?

Greetings,

I have made a fresh install of Jetpack, and I notice the Darknet fork provided by Opendatacam fails to build in this configuration. Make file settings:

GPU=1
CUDNN=1
CUDNN_HALF=0
OPENCV=1
AVX=0
OPENMP=0
LIBSO=0
ZED_CAMERA=1 # ZED SDK 3.0 and above
ZED_CAMERA_v2_8=0 # ZED SDK 2.X

This is the error message:

./src/convolutional_layer.c: In function ‘cudnn_convolutional_setup’:
./src/convolutional_layer.c:286:24: error: ‘CUDNN_CONVOLUTION_FWD_PREFER_FASTEST’ undeclared (first use in this function); did you mean ‘CUDNN_CONVOLUTION_BWD_FILTER_ALGO_3’?
     int forward_algo = CUDNN_CONVOLUTION_FWD_PREFER_FASTEST;
                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
                        CUDNN_CONVOLUTION_BWD_FILTER_ALGO_3
compilation terminated due to -Wfatal-errors.
Makefile:162: recipe for target 'obj/convolutional_layer.o' failed
make: *** [obj/convolutional_layer.o] Error 1

I have also tried with CUDNN_HALF on 0, and I get the exact same build error.

When I build darknet directly from the git, it builds just fine with the exact same configuration. It seems the ODC fork is getting a bit older now, it might be something in the latest jetpack which does not work well with that. Would it be possible to update the ODC darknet or will that break things?

[tdurand]

Hi @Denizzje

Yes, sorry, the latest jetpack doesn’t play well with our darknet fork version, but good news is that the “latest” darknet should work out of the box: https://github.com/alexeyab/darknet

The diff of our fork is just a few comments to clean up the logs: https://github.com/opendatacam/darknet/pull/7/files

I’m aiming to spend time later this months to update OpenDataCam docker images + the fork in order to be compatible with latest jetpack… In the meantime if you try it would be nice if you can let me know if it works

Thanks

[vsaw]

Yes. Building Darknet takes 5-7 minutes which we could shave off the docker build. So this repo becomes more a versioned package builder then a “source store”.