Use a empty .py file, and run with examples/arm/run.sh, it still working

[heweiwill]

I create a empty .py file, and run with below command:
examples/arm/run.sh --target=ethos-u85-512 ----model_name=test-empty-file.py

The script still working and it seems go through the model list builtin:

    test_model=(
        "softmax"   # 0
        "add"       # 1
        "add3"      # 2
        "qadd"      # 3
        "qadd2"     # 4
        "qops"      # 5
        "mv2"       # 6
    )

cc @digantdesai @freddan80 @per @zingo @oscarandersson8218

[cccclai]

Are you expecting no test to run? @digantdesai

[zingo]

This could be a side effect of the inital behaviour that run.sh without a model just runned all buildtin models, I assume a py file without model might end up in this state and it would be nice to give an error instead.
Plan is to remove the builtin models (and this behavior) soon:ish and then this will work as expected and not run them :)

[wilhe01]

Is it possible to keep the builtin model in run.sh as any other form? I think it's still very useful for someone to just get started, to run with a builtin model to confirm the operate step is correct...

[zingo]

Hi @wilhe01 thanks for the input and I agree with you we need to find a good balance here :)

There is already simple way by pointing out the model as a file and there is a minimal model ready to be used like this

examples/arm/run.sh --target=ethos-u55-128 --model_name=examples/arm/example_modules/add.py

Plan right now it to just move out a nice mix, what end up making sense, to example files.

We are also wondering if it would be good to instead/also create a special aot_arm_compiler.py with just a model e.g. simple_model+lowering->pte as an example and maybe better match a end user flow instead of having only this generic "compiler" command.

Would any of this be good approaches or maybe you have more ideas around this?