Speed Up Multiple Model Inference on EDGE TPU

Question

I have retrained a RESNET50 model for reidentification on EDGE TPU. However, it seems to be no way to fetch a batch of image to EDGE_TPU.

I have come up with a solution of running multiple same model for images.

However, is there anyway to speed up the model inference for multiple model? The threading now is even slower than single model inference

Answer 1

Because batch inference is not available now, so pipelining is another secondary option. However, after experiencing with my model, we can make a psuedo batch by feeding multiple single input for EDGE_TPU as another option

Answer 2

Yeah, the edgetpu's architect won't allow processing in batch size. Have you tried model pipelining? https://coral.ai/docs/edgetpu/pipeline/

Unfortunately only available in C++ right now, but we're looking to extends it to python in mid Q4.