search

nengo / nengo-loihi

Run Nengo models on Intel's Loihi chip
https://www.nengo.ai/nengo-loihi/
Other
35 stars 12 forks source link

Unimplemented Error: Generic conv implementation only supports NHWC tensor format for now. #239

Closed wssrc closed 5 years ago

wssrc commented 5 years ago

When trying following the CNN tutorial to classify cats vs dogs, the code breaks with the above code when I set do_training=True. It breaks on the line with nengo_dl.Simpulator(net,....) as sim: if do_training: sim.loss(test_data_dict, ...) I have nengo v3.0.0, nengo_loihi v0.8.0, nengo_dl v2.1.1 I suspect this is because nengo v3.0.0 is unreleased, so this is more a request for you guys to implement this :)

tbekolay commented 5 years ago

Hi @wssrc! This might be an issue with dev versions, but in the past when we've gotten the "Unimplemented Error: Generic conv implementation only supports NHWC tensor format for now" error, it's because Nengo DL's convolution implementation uses some features of TensorFlow that are only available with tensorflow-gpu and not the CPU-based tensorflow. Which one are you using at the moment?

wssrc commented 5 years ago

I think I'm using tensorflow since it keeps recommending that I install tensorflow-gpu. But I do have it installed, so I don't know what's up with that. Do you have any suggestions? That may have been my problem

tbekolay commented 5 years ago

I've had troubles installing tensorflow in the past, so I don't know if I can be of much help, but I guess my generic recommendation would be to try to remove all of the existing tensorflow installations (i.e., do pip uninstall tensorflow tensorflow-gpu a few times to make sure they're all removed) then reinstall tensorflow-gpu.