[SPARK-17134] Use level 2 BLAS operations in LogisticAggregator

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Component/s: ML
• Labels: bulk-closed
• Assignee: Seth Hendrickson
• Reporter: Seth Hendrickson
• Created: 18/Aug/16 17:52
• Updated: 21/May/19 04:11
• Resolved: 21/May/19 04:11

Description

Multinomial logistic regression uses LogisticAggregator class for gradient updates. We should look into refactoring MLOR to use level 2 BLAS operations for the updates. Performance testing should be done to show improvements.

Issue Links

• links to: [Github] Pull Request #17894 (VinceShieh)