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GreenWaves-Technologies / gap_sdk

SDK for Greenwaves Technologies' GAP8 IoT Application Processor
https://greenwaves-technologies.com/en/gap8-the-internet-of-things-iot-application-processor/
Apache License 2.0
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Error in coeffisient loading when compiling autotiler model #334

Open finnfi opened 2 years ago

finnfi commented 2 years ago

Hi! I am currently working on the bitcraze AIDeck together with the crazyflie.

I've got a tflite nn that I want to execute on the gap8, but I get this error when compiling:

Error: For coefficient file ./BUILD_MODEL_SQ8BIT/tensors/S183_Mul_scale.tensor expecting 64 Byte items, got 1

This seems similar to this issue, but I did not understand the fix: #189

The console output is attached here: debug.txt The (prequantized) tflite model is attached here: depth_estimation_q.zip

GAP SDK version: 4.8.0. (Compatible with aideck)

I am very new to tensorflow and another person has designed the network and converted it to a tflite model. I need to get it on the gap8. Is this a problem I can fix with the nntool or must the network be redesigned?

Any help is appreciated!

Finn

finnfi commented 2 years ago

I've experiemented a little bit, and I get it to work for this tflite nn: test_q.zip. Where is the difference?

finnfi commented 2 years ago

I fixed it by doing the quantization with the nntool and not in pythont with the tf package.

I then realized that the network input is way to big for the l2 memory, so it has to be redesigned.

finnfi commented 2 years ago

See #339