samskalicky commented on a change in pull request #15969: [WIP] Partitioning
Gluon HybridBlocks
URL: https://github.com/apache/incubator-mxnet/pull/15969#discussion_r372705506
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File path: python/mxnet/gluon/block.py
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@@ -954,6 +955,18 @@ def _build_cache(self, *args):
unused = ', '.join(list(param_names - set(used_param_names)))
warnings.warn("Parameter %s is not used by any computation. "
"Is this intended?"%unused, stacklevel=4)
+ if self._backend:
+ arg_array = []
+ ctx = None
Review comment:
I think we only need to assign `ctx` to `args[0].context` since in gluon
there must be at least one input to the model and all inputs/params have to be
on the same context. Then we dont need to do it in the loop.
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