lwc:hardware:jetson [wiki]

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==== Jetson ====
  * [[https://wiki.seeedstudio.com/reComputer_Industrial_Getting_Started/|getting started]]  
  * [[https://github.com/Seeed-Projects/jetson-examples?tab=readme-ov-file|Jetson examples]]
  * [[https://developer.nvidia.com/embedded/learn/jetson-ai-certification-programs#course_outline|nvidia certification]] (no longer available)
  * [[https://www.jetson-ai-lab.com/|Jetson AI lab]]

  * [[https://learn.nvidia.com/courses/course-detail?course_id=course-v1:DLI+S-RX-02+V2|Getting Started with AI on Jetson Nano]]

==== seeedstudio reComputer 3011 and 4012 (and probably others) ====
  * do not try to update with seeedstudio's firmware. It's not updateable after that
  * instead use sdkmanager from nvidia:
    * do manual install. Automatic will try to update the seeedstudio stuff which will fail
    * manual install requires forced recovery mode which requires a USB connection
      * to do forced recovery with unit unplugged:
        * use a paper clip to press the recovery button
        * while pressing the recovery button apply power
    * attach USB cable to "device port." For USB the cable used matters. I had luck using usbc <--> usbc. Using usba <--> usbc failed
    * 1/2 way through the install process, sdkmanager will want to reconfirm/switch how host is communicating to the target. At this point the target is booted into the new OS
    * at that point I switched to ethernet as both units were connected to my router. I'm not sure if sticking with usb might have worked or would have been faster

==== Installing pyTorch ====
//corrected from: [[https://docs.nvidia.com/deeplearning/frameworks/install-pytorch-jetson-platform/index.html]])//
  * install ''jetpack''. (This is not the same as installing the OS for Jetson): ''sudo apt install nvidia-jetpack''
  * get version of CUDA: ''nvcc --version''
  * install ''cusparselt'':
<code>
wget raw.githubusercontent.com/pytorch/pytorch/5c6af2b583709f6176898c017424dc9981023c28/.ci/docker/common/install_cusparselt.sh 
sudo -s # set CUDA version and install as root
export CUDA_VERSION=12.1 # as an example. Use the version returned from ''nvcc --version''
bash ./install_cusparselt.sh
</code>
  * install correct numpy version: ''sudo pip install numpy==1.26.1''
  * download correct version of pytorch for jetpack version. Search for it at [[https://developer.download.nvidia.cn/compute/redist/jp/]]
<code>
sudo pip3 install --no-cache http://<URL TO PYTORCH WHL>
</code>

==== misc ====
  * [[https://elinux.org/Jetson_Zoo#ONNX_Runtime|onnxruntime for Jetson]]
  * if ''onnxruntime'' fails with message ''Invalid argument. Specify the number of threads explicitly'' fix with one-time cli command: ''sudo nvpmodel -m 0'' which forces the computer to with no throttling
  * ''tegrastats'' might show load on GPU?
    * ''tegrastats | cut -f 14 -d " "'' shows % load on GPU
  * you can get rid of the warning ''System Throttled due to Over-current'' by editing ''/usr/share/nvpmodel_indicator/nvpmodel_indicator.py''