Halide install in Jetson Orin

I can install Halide via "conda install -c conda-forge halide-python "on my laptop, but it does not works on Jetson Orin, it shows:
Collecting package metadata (current_repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Collecting package metadata (repodata.json): done
Solving environment: failed with initial frozen solve. Retrying with flexible solve.

PackagesNotFoundError: The following packages are not available from current channels:

  • halide-python

Current channels:

To search for alternate channels that may provide the conda package you’re
looking for, navigate to


and use the search bar at the top of the page.

Can anyone tells how to install halide on Jetson?

I don’t have answer, may other developers help to share experiences.

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I’ve gone into the same question, and here is how I did (tested with AGX Orin and L4T R35.1).

Be sure you have at least 5GB of free space in rootfs (/) for install and 20GB for building.
Be aware that it may take more than one hour to build on AGX Orin with boosted clocks, may take a night on Nano.

sudo jetson_clocks
sudo apt update
sudo apt install -y build-essential pkg-config
sudo apt install -y meson ninja-build
cd <path_to_a_drive_where_you_have_more_than_20GB>
mkdir -p Halide-top
cd Halide-top

1. Build cmake-3.25.1

Be sure that PATH shows /usr/local/bin before /usr/bin.

sudo apt install -y cmake libssl-dev curl

# For Qt GUI
sudo apt install -y qt5-default

mkdir cmake-3.25.1
cd cmake-3.25.1
#sudo apt install -y libssl-dev 

mkdir -p Src
cd Src
wget -c --show-progress https://github.com/Kitware/CMake/releases/download/v3.25.1/cmake-3.25.1.tar.gz
tar xvf cmake-3.25.1.tar.gz
cd ..

mkdir -p cmake-3.25.1-build && cd cmake-3.25.1-build

#cmake -DCMAKE_USE_OPENSSL=OFF ../cmake-3.25.1
# If you want to build cmake-gui against Qt5
cmake -DCMAKE_-DBUILD_QtDialog=ON -DQT_QMAKE_EXECUTABLE=/usr/lib/qt5/bin/qmake ../Src/cmake-3.25.1

make -j $(nproc)
#make test

# This would install into /usr/local
sudo make install

# This should show version 3.25.1
cmake --version
cd ../..

2. Build LLVM-16

Here using today’s main branch that is pre-release 16.0.0.
Note that many other dependencies not listed here may be required, you would find these from LLVM docs and install with apt.

mkdir llvm-16-for-Halide
cd llvm-16-for-Halide

# Some dependencies... not sure if these are all relevant or mandatory...
sudo apt install -y libtinfo-dev libltdl-dev zlib1g-dev
sudo apt install -y libhwloc-dev libedit-dev
sudo apt install -y libffi-dev libgomp1 libopenmpi-dev

# Get LLVM project sources - Today main branch for llvm-16
git clone --recursive https://github.com/llvm/llvm-project.git

mkdir llvm-project-build
cd llvm-project-build
# Here configuring openmp nvptx for Orin (sm_87), you would adjust if using another Jetson (53 for Nano/TX1, 62 for TX2, 72 for Xavier...)

Now there is a bug in cmake install files where it would fail to install docs when docs are not built.
Edit file cmake_install.cmake and comment out (may be line 87 or around) such as:

Once done, build and install:

# This will take some time
make -j$(nproc)

# Tests would be built if not yet done before running
#make check-all
#make check-llvm

# Or just run target tests with llvm-lit script already available
#./bin/llvm-lit ../llvm-project/llvm/test/CodeGen/AArch64
#./bin/llvm-lit ../llvm-project/llvm/test/CodeGen/NVPTX
#./bin/llvm-lit ../llvm-project/llvm/test/CodeGen/SPIRV

sudo make install 
cd ../..

This has installed llvm-16 into /usr/local/llvm-16, so adjust your environment for using it:

export PATH=/usr/local/llvm-16/bin:$PATH
export LD_LIBRARY_PATH=usr/local/llvm-16/lib:$LD_LIBRARY_PATH

You may add the above lines at the end of your user’s .bashrc if you don’t want to set manually set these next times.

# This should show clang version 16.0.0
clang++ --version

3. Build Halide

sudo apt install -y pip3 meson ninja-build
sudo pip3 install virtualenv 

mkdir Halide
cd Halide

# Get sources:
git clone --recursive https://github.com/halide/Halide.git

# setup python requirements (You may do that in a virtual env, see Halide/README_python.md)
virtualenv --system-site-packages halide_venv
source ./halide_venv/bin/activate
python3 -m pip install -U setuptools wheel testresources
python3 -m pip install -r Halide/requirements.txt

mkdir build-release
cd build-release

# Configure. Here disabling tutorials beacuse it fails without Windows.
cmake --build .
# Note this shows 2 Warnings:
#[3026/3334] Generating alias_Mullapudi2016.h, alias_Mullapudi2016.o
#Warning: Insufficient parallelism for output
#[3054/3334] Generating autograd_grad.h, autograd_grad.o
#Warning: Insufficient parallelism for _grad_loss_output_lut_wrt_lut_indices
#[3334/3334] Linking CXX executable util/HalideTraceDump

sudo cmake --install .
cd ..

Adjust the environment again:

export PATH=/usr/local/Halide/bin:$PATH
export LD_LIBRARY_PATH=/usr/local/Halide/lib:$LD_LIBRARY_PATH
export PYTHONPATH=/usr/local/Halide/lib/python3/site-packages:$PYTHONPATH

4. Try the Halide tutorials

We have disabled these so these are not installed, but it is still possible to manually install and run these:

# should still be in Halide-top directory

mkdir tutorial
cd tutorial
cp -r ../Halide/tutorial/images .
cp -r ../Halide/tutorial/figures .
cp ../Halide/tutorial/*.h .
cp ../Halide/tutorial/*.cpp .

# You would be able to build lessons with the commands in the comments in code of each lesson, for example:
g++ -std=c++17 -I/usr/local/Halide/include -I/usr/local/Halide/share/tools -I.  lesson_01_basics.cpp -L/usr/local/Halide/lib  -lHalide -lpng -ljpeg -lpthread -ldl -o lesson_01_basics

5. Try from python:

import halide
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