[GitHub] anirudh2290 commented on a change in pull request #8000: Docs changes for launch.py usage

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anirudh2290 commented on a change in pull request #8000: Docs changes for launch.py usage
URL: https://github.com/apache/incubator-mxnet/pull/8000#discussion_r157604179
 
 

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 File path: docs/faq/multi_devices.md
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 @@ -148,6 +148,14 @@ Note that here we
 - `-n` number of worker nodes to run on
 - `-H` the host file which is required by `ssh` and `mpi`
 - `--kv-store` use either `dist_sync` or `dist_async`
+- `-s` number of server nodes to run on
+- If the `-s` argument is not passed, it will keep the number of servers same as number of workers
+- The launch.py script tries to cycle through the hosts file to launch the servers and workers. For example,
+  let's say you have `5` hosts in the hosts file and you passed n as `3`(and nothing for s).
+  The script will launch `3` server processes for the first three hosts in the hosts file and launch `3` worker
 
 Review comment:
   thanks for pointing! i have changed this.

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