raspberrypi.sh does not install nn~ correctly

[xingjeffrey]

I am trying to install nn~ for a Raspberry 4B with the raspberrypi.sh script

curl -s https://raw.githubusercontent.com/acids-ircam/nn_tilde/master/install/raspberrypi.sh | bash

However, the pd external nn~.pd_linux is not generated by the script, resulting in the following error:

installing compilation tools... installing libtorch... configuring nn~... compiling nn~... installing nn~... **cp: cannot stat 'frontend/puredata/nn_tilde/nn~.pd_linux': No such file or directory** installed nn~ to /usr/local/lib/pd-externals/ ! have fun !
I try to run the script line by line, and it seems to be something wrong with the cmake where it is not generated the nn~.pd_linux file where it is supposed to be. Instead the only files in frontend/puredata/nn_tilde/ are

CMakeFiles cmake_install.cmake Makefile

I am not sure what to do here since I don't know C. Any help will be appreciated!

[xingjeffrey]

I played around some more and found that the problem for me is in the C++ version specified in the CMakeLists.txt of both the backend and frontend in /src. Changing CXX_STANDARD 14 to CXX_STANDARD 17 in both .txt solved all issues. I don't know if that screws up other installations, but this solves compiling issues for raspberrypi 4B and generates a nn~.pd_linux file as expected.

[maurice-jo]

I have the same issue. Changing the CCX_Standard versions does not help unfortunately. Any advice?

Working on Raspberry Pi 5.

[xingjeffrey]

I have the same issue. Changing the CCX_Standard versions does not help unfortunately. Any advice?

Working on Raspberry Pi 5.

After I solved my installation issue and set up everything I realized that my 4B wasn’t powerful enough to decode fast enough for my purpose… and now I have resorted back to decoding on my Mac. I am not sure about 5, but if you can get away with decoding on a more powerful and stable machine, that would be my advice. If you have to do compact design (which was my original goal, I wanted to make a portable toy for myself), I hope others who have had success with raspberrypi decoding can help you more.

[danielmanz17]

Working on Raspberry Pi 5.

Hey Maurice, did you manage to get this working in the end? Also trying to get nn~ running on a raspberry pi 5.

[maurice-jo]

Hey Daniel! Yes, I managed to get it working with a clean install of Pi Os bookworm and the linux.sh in the install folder.

[danielmanz17]

Great, was this without having to modify the CMakeLists.txt file? And did you also try with raspberry.sh (also in the install folder, is what I've been using unsuccessfuly)

[danielmanz17]

Did you simply run the command curl -s https://raw.githubusercontent.com/acids-ircam/nn_tilde/master/install/linux.sh | bash in the raspberry pi 5 terminal? I am encountering the same errors quoted in this issue, despite changing CCX_STANDARD 14.

[moiseshorta]

For anybody still having problems installing, here's what worked for me:

### Instructions building nn~ for Pure Data on Bookworm OS (Raspberry Pi 5) 
### Last updated: November 5, 2024

# Allows you to install pip3 packages directly without warning (source: https://qengineering.eu/bookworm.html#VirtualEnv)
$ sudo mv /usr/lib/python3.11/EXTERNALLY-MANAGED /usr/lib/python3.11/EXTERNALLY-MANAGED.old

# install the dependencies
$ sudo apt-get install python3-pip libjpeg-dev libopenblas-dev libopenmpi-dev libomp-dev
$ pip3 install setuptools numpy Cython
$ pip3 install requests

# install PyTorch, Torchvision, Torchaudio
$ pip3 install torch torchvision --index-url https://download.pytorch.org/whl/cpu
$ pip3 install torchaudio --index-url https://download.pytorch.org/whl/cpu

# copy path of Pytorch installation
$ pip3 show torch

# Install and build nn~
$ cd Desktop
$ git clone https://github.com/acids-ircam/nn_tilde --recursive
$ cd nn_tilde
$ mkdir build
$ cd build

# Build nn tilde
$ cmake ../src/ -DCMAKE_PREFIX_PATH=/home/{user}/.local/lib/python3.11/site-packages/torch -DCMAKE_BUILD_TYPE=Release
$ make

# Copy nn~ external to puredata-externals folder
$ sudo cp '/home/{user}/Desktop/nn_tilde/build/frontend/puredata/nn_tilde/nn~.pd_linux' '/usr/local/lib/pd-externals'