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In many tensorflow tutorials (example) "towers" are mentioned without a definition. What is meant by that?

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According to tensorflow documentation about CNN,

The first abstraction we require is a function for computing inference and gradients for a single model replica. In the code we term this abstraction a "tower".

To get the relevant context and more, check this.

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    $\begingroup$ The linked page does not mention "tower" anymore :/ $\endgroup$ – aviator Apr 7 '20 at 15:17
  • $\begingroup$ To keep it simple, a "Tower" is a copy of your model. In a multi-GPU case, if you have 8 GPUs, then you will get 8 Towers. $\endgroup$ – Begoodpy Jul 26 '20 at 13:13

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