LiteRT runtime build not working for Linux+Aarch64

[mansnils]

There is no aarch64 linux wheel for ai-edge-litert.
https://pypi.org/project/ai-edge-litert/#files

For tensorflow there is e.g. CPython 3.11 manylinux: glibc 2.17+ ARM64
https://pypi.org/project/tensorflow/#files

It appears not to be possible to build natively for aarch64+linux from source (using the ci/build_pip_package_with_bazel.sh script):

How to reproduce on Linux+Aarch64:
./ci/build_pip_package_with_bazel.sh

Building TFL runtime in tensorflow on Linux+Aarch64 works:
./tensorflow/lite/tools/pip_package/build_pip_package_with_cmake.sh

[byarbrough]

Bummed that I cannot install on the Pi 4 running Linux raspberrypi 6.6.51+rpt-rpi-v8 #1 SMP PREEMPT Debian 1:6.6.51-1+rpt3 (2024-10-08) aarch64 GNU/Linux

But the docs do still say to use

pip install tflite-runtime

https://ai.google.dev/edge/litert/microcontrollers/python

[AllanKamimura]

yeah..... it's really curious how a library aimed for edge-runtime don't have an arm64 build available
I asked if they have a date planned for the release of the linux/arm64 build, but didn't get any answer

in the end, I build it myself using that ci script and it is working 🙃
python 3.11
linux/arm64

ai_edge_litert_nightly-1.0.1.dev20241024-cp311-cp311-linux_aarch64.zip

well, use it at your own discretion 😅

[johnthagen]

aarch64 wheels are needed to make ai-edge-litert a true replacement for tflite-runtime, which provides manylinux_2_34_aarch64.whl wheels.

• https://pypi.org/project/tflite-runtime/2.14.0/#files

Another example where this is needed is for macOS ARM64 local development within containers-- this requires an ARM64 Linux wheel when installing into the container.