[Discuss-gnuradio] gr-inspector example `amc_cnn` fails

[Ben Hilburn]

Hey all -

I'm trying to get some of the tensorflow gr-inspector examples up and running, and running into a few hiccups (note that the non-tensorflow flowgraps work fine). I'm using the non-GPU version of tensorflow (`$ sudo pip install tensorflow`) as I don't have an nVidia GPU.

With the `amc_cnn` example, I was first getting the following error:

RuntimeError: Expected meta graph file missing /tmp/cnn/00000001/export.meta

Not really being sure what that was, I created the `/tmp/cnn/00000001/` directory, touched the `export.meta` file, and moved on (this may have been my first mistake).

Anyway, it gets a bit further, but dies with this:

Executing: /usr/bin/python2 -u /home/bhilburn/code/gnuradio/gr-inspector.git/examples/top_block.py

Traceback (most recent call last):

  File "/home/bhilburn/code/gnuradio/gr-inspector.git/examples/top_block.py", line 139, in <module>

    main()

  File "/home/bhilburn/code/gnuradio/gr-inspector.git/examples/top_block.py", line 127, in main

    tb = top_block_cls()

  File "/home/bhilburn/code/gnuradio/gr-inspector.git/examples/top_block.py", line 75, in __init__

    self.inspector_tfmodel_vcf_0 = inspector.tfmodel_vcf("complex64",128,'/tmp/cnn/00000001',(),0)

  File "/home/bhilburn/usr/lib64/python2.7/site-packages/inspector/tfmodel_vcf.py", line 64, in __init__

    sess, inp, out,classes = self.load_graph(graphfile)

  File "/home/bhilburn/usr/lib64/python2.7/site-packages/inspector/tfmodel_vcf.py", line 88, in load_graph

    signatures_any[0].Unpack(signatures)

  File "/usr/lib/python2.7/site-packages/google/protobuf/internal/containers.py", line 204, in __getitem__

    return self._values[key]

IndexError: list index out of range

Any ideas / pointers?

Cheers,

Ben