Didn't find op for builtin opcode 'SUM' version '1'

[drrll]

@tensorflow/micro

System information

• Host OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Mac OS 11.4
• TensorFlow installed from (source or binary): Source
• Tensorflow version (commit SHA if source): 2.5 (a4dfb8d)
• Target platform (e.g. Arm Mbed OS, Arduino Nano 33 etc.): STM Cortex M4

Describe the problem
The SUM operator is not supported in TF Lite Microcontroller, even though it is supported in TF Lite. I assume it's a pretty easy operation to get ported to MCU? I'm getting
Didn't find op for builtin opcode 'SUM' version '1'

Please provide the exact sequence of commands/steps when you ran into the problem
Run any TF Model with SUM operator, AllocateTensors() will print out Didn't find op for builtin opcode 'SUM' version '1'

[galah92]

I also need this. Is this something that's possible to contribute?

[mohantym]

Hi @drrll !

I am not sure whether the work arounds in similar issues will work or not as I could not find sum.cc in the lite/micro kernels from tflite-micro repo.

1, 2

Please look at the comment in similar issue #48431 . Closing this one as duplicate.

Thank you!

[google-ml-butler]

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