[ https://issues.apache.org/jira/browse/SPARK-14850?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xiangrui Meng updated SPARK-14850: ---------------------------------- Priority: Blocker (was: Critical) > VectorUDT/MatrixUDT should take primitive arrays without boxing > --------------------------------------------------------------- > > Key: SPARK-14850 > URL: https://issues.apache.org/jira/browse/SPARK-14850 > Project: Spark > Issue Type: Improvement > Components: ML, SQL > Affects Versions: 1.5.2, 1.6.1, 2.0.0 > Reporter: Xiangrui Meng > Priority: Blocker > > In SPARK-9390, we switched to use GenericArrayData to store indices and > values in vector/matrix UDTs. However, GenericArrayData is not specialized > for primitive types. This might hurt MLlib performance badly. We should > consider either specialize GenericArrayData or use a different container. > cc: [~cloud_fan] [~yhuai] -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org