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Re: Status of tensorflow/lite, towards coral-ai

On 18.05.21 09:25, Jan Kiszka wrote:
> On 17.05.21 04:48, Wookey wrote:
>> On 2021-05-16 19:49 +0200, Jan Kiszka wrote:
>>> Digging down that stack, I now ran into the dependency
>>> "python3-tflite-runtime". I saw the ongoing effort on salsa to package
>>> the main bits of tensorflow, but lite is apparently still missing. What
>>> is the status there, what are the blockers?
>> Status is unchanged since my last message on the subject:
>> https://lists.debian.org/debian-ai/2021/04/msg00001.html
>> (I don't know how to build tf-lite; given a rune that tried I could
>>  find out what else was missing)
> I found out yesterday that [1] is building tf-lite packages, with the
> help of bazel (I used Google's package for now, not yet the bullseye
> version). As usual, this involved pulling several dependencies during
> the build. The other path I got pointed to is [2] and [3] - just
> exploring this.

In fact, just build_pip_package.sh builds even without bazel or cmake
(amazing: three ways to build, provided by upstream):

- debian:buster container
- build-essential git python3-dev python3-pybind11 python3-setuptools 
  python3-wheel dh-python debhelper zlib-dev curl git
- git clone https://github.com/tensorflow/tensorflow
- BUILD_DEB=y PYTHON=python3 \
  /tensorflow/tensorflow/lite/tools/pip_package/build_pip_package.sh native

Still, there is "curl" and tensorflow/lite/tools
/make/download_dependencies.sh. The latter should actually be called

Anyway, maybe a blueprint to start from.

> Are you using bazel or rather the cmake path?
>> Tensorflow c-library is missing the googleapis cpp bindings, and they currently don't build:
>> https://lists.debian.org/debian-ai/2021/04/msg00004.html
> What are the patterns to externalize all that dependency fetching that
> the build scripts and tools do? Did you find central knobs to redirect
> them to locally pre-installed artifacts?

Meanwhile I found that mocking of repos in bazel in the debian 
packaging, but it doesn't parse for me yet. I'm afraid I will need 
something like this also for libedgetpu...


>> I've just got a load of kernel and installer and RC issues out of the way so
>> tensorflow is back to the top of my list this week.
>>> On the one hand, I need something quickly self-built, more reproducible
>>> than google's apt repo. On the other hand, it's our strong desire to
>>> have official packages one day. So I'd like to focus our efforts on
>>> things that could ideally be reused for that. Any guidance appreciated!
>> Any help is welcome. Knowing what's up with the googleapis build, or
>> what the right rune/target to build tf-lite is would help. I should
>> update salsa as the googleapis stuff is not there, and I probably have
>> a couple of local tensorflow changes.
> That would be great so that everyone is looking at the latest progress.
> Jan
> [1] https://github.com/google-coral/pycoral/
> [2] https://www.tensorflow.org/lite/guide/build_cmake_pip
> [3] https://www.tensorflow.org/lite/guide/build_cmake
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Corporate Competence Center Embedded Linux

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