[ML-6097] Update Horovod Runner to include return value and multi-gpu info.

databricks / spark-deep-learning

Deep Learning Pipelines for Apache Spark

https://databricks.github.io/spark-deep-learning

Apache License 2.0

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[ML-6097] Update Horovod Runner to include return value and multi-gpu info. #183

Closed MrBago closed 5 years ago

MrBago commented 5 years ago

Cherry-picked the commit that adds return value implemenation, docs & tests. Added better description of np to include info about multi-gpu support.

mengxr commented 5 years ago

LGTM