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https://issues.apache.org/jira/browse/SPARK-17175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Owen resolved SPARK-17175.
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Resolution: Won't Fix
> Add a expert formula to aggregationDepth of SharedParam
> -------------------------------------------------------
>
> Key: SPARK-17175
> URL: https://issues.apache.org/jira/browse/SPARK-17175
> Project: Spark
> Issue Type: Task
> Components: ML
> Reporter: Qian Huang
> Priority: Minor
>
> It needs to do some investigations and performance tests first, since getting
> a formula to determine the aggregation depth is tricky. It could depend on
> the memory setting of driver, the dimension of problems, and the number of
> partition, etc.
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