TensorBoard Histogram

Thanks so much for coming here to raise an issue. Please take a moment to ‘check’ the below boxes:

• I’m up-to-date with the latest release:

  pip install -U talos
  

• I’ve confirmed that my Keras model works outside of Talos.

If you still have an error, please submit complete trace and a code with:

• output of shape for x and y e.g. (212,12)
• Talos params dictionary
• The Keras model wired for Talos
• Description of extra variables in the model

You can provide the code in pastebin / gist or any other format you like.

Error Trace

  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\keras\engine\training.py", line 647, in _make_predict_function
    **kwargs)
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\keras\backend.py", line 2942, in function
    return Function(inputs, outputs, updates=updates, **kwargs)
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\keras\backend.py", line 2782, in __init__
    with ops.control_dependencies(self.outputs):
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\framework\ops.py", line 4798, in control_dependencies
    return get_default_graph().control_dependencies(control_inputs)
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\framework\ops.py", line 4384, in control_dependencies
    c = self.as_graph_element(c)
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\framework\ops.py", line 3339, in as_graph_element
    return self._as_graph_element_locked(obj, allow_tensor, allow_operation)
  File "C:\Users\Reto\Anaconda3\envs\jass-kit\lib\site-packages\tensorflow\python\framework\ops.py", line 3418, in _as_graph_element_locked
    raise ValueError("Tensor %s is not an element of this graph." % obj)
ValueError: Tensor Tensor("dense_1/Softmax:0", shape=(?, 36), dtype=float32) is not an element of this graph.

Following Code is used:

https://gist.github.com/crzdg/3f85cc4383d6316e9d6b1bcb23b0e9c2

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May be helpful:

https://stackoverflow.com/questions/46725323/keras-tensorflow-exception-while-predicting-from-multiple-threads

[mikkokotila]

Thanks. The “…not an element of this graph” is an issue that I’m reluctant to start dealing with as there is a lot of confusion around it. Which I think is the reason why Keras is not already dealing with it. It is well known that Keras is not handling this, but it needs to be explicitly handled on tf. If Keras starts to support this in some meaningful way, the problem will go away, otherwise I’m afraid not.

What do you want to use TensorBoard for?

[mikkokotila]

Closing this as it’s not related with Talos, but for whom it may concern, generally this error is overcome (regardless of where it appears) by setting talos.Scan(...clear_session=False...).