anandj91 commented on a change in pull request #15124: [MXNET-1294]
Priority-based parameter propagation for improved data parallel training
throughput
URL: https://github.com/apache/incubator-mxnet/pull/15124#discussion_r371501318
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File path: python/mxnet/kvstore/kvstore.py
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@@ -349,6 +363,7 @@ def pushpull(self, key, value, out=None, priority=0):
out: NDArray or list of NDArray or list of list of NDArray
Values corresponding to the keys.
+ `out` should have length as `value`.
Review comment:
in that case we need to bring back separate key list for value and out.
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