[GitHub] [incubator-mxnet] ctcyang commented on a change in pull request #14286: Add examples of running MXNet with Horovod

[GitBox <gi...@apache.org>]

ctcyang commented on a change in pull request #14286: Add examples of running MXNet with Horovod
URL: https://github.com/apache/incubator-mxnet/pull/14286#discussion_r264857586
 
 

 ##########
 File path: example/distributed_training-horovod/README.md
 ##########
 @@ -0,0 +1,207 @@
+<!--- Licensed to the Apache Software Foundation (ASF) under one -->
+<!--- or more contributor license agreements.  See the NOTICE file -->
+<!--- distributed with this work for additional information -->
+<!--- regarding copyright ownership.  The ASF licenses this file -->
+<!--- to you under the Apache License, Version 2.0 (the -->
+<!--- "License"); you may not use this file except in compliance -->
+<!--- with the License.  You may obtain a copy of the License at -->
+
+<!---   http://www.apache.org/licenses/LICENSE-2.0 -->
+
+<!--- Unless required by applicable law or agreed to in writing, -->
+<!--- software distributed under the License is distributed on an -->
+<!--- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY -->
+<!--- KIND, either express or implied.  See the License for the -->
+<!--- specific language governing permissions and limitations -->
+<!--- under the License. -->
+
+# MXNet + Horovod
+[Horovod](https://github.com/horovod/horovod) is a distributed training framework that demonstrates 
+excellent scaling efficiency for dense models running on a large number of nodes. It currently 
+supports mainstream deep learning frameworks such as MXNet, TensorFlow, Keras, and PyTorch. 
+It is created at Uber and currently hosted by the [Linux Foundation Deep Learning](https://lfdl.io)(LF DL). 
+
+MXNet is recently supported in Horovod 0.16.0 [release](https://eng.uber.com/horovod-pyspark-apache-mxnet-support/).
+
+## What's New?
+Compared with the standard distributed training script in MXNet which uses parameter server to 
+distribute and aggregate parameters, Horovod uses ring allreduce algorithm to communicate parameters 
 
 Review comment:
   I might change this to "ring allreduce and tree-based allreduce algorithm", because Horovod will use the tree-based MPI allreduce algorithm if you set HIERARCHICAL_ALLREDUCE=1.

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services