Group Convolution Support

[will-rice]

Any plan on supporting group convolutions in this repo? I would be interested in working on this also. Just wanted to verify it wasn't already in progress before I attempted it.

[advaitjain]

In general, the recommendation is to first implement the feature in TfLite and then port to TFLM for embedded use-cases.

I see that you have found and commented on tensorflow/tensorflow#40044 and I would encourage you to follow up there for now.

[will-rice]

Thank you!!

[MATTYGILO]

Are they supported yet?

[HemanthSai7]

Hello, are the grouped convolutions supported yet? I'm still facing the issue in using grouped convolutions. I'm able to deploy normal conv layers without any issue. In the TF issue mentioned above, it seems to have been added.

[mansnils]

Hello @HemanthSai7,
At least the CMSIS-NN kernel supports it:

tflite-micro/tensorflow/lite/micro/kernels/cmsis_nn/conv.cc

Line 94 in 6147f20

const int groups = input->dims->data[3] / filter->dims->data[3];

[HemanthSai7]

I'm using conv1d in esp32 and I don't think it's there. I'll checkout the link. Thanks