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Markus CozowiczGuolin Ke
95246cdaec4
Markus Cozowicz authored and Guolin Ke committed beeb6e0fd58
Added additional APIs to better support JNI on Spark (#2032)

* added API changes required for JNI performance optimizations (e.g. predict is 3-4x faster)

* removed commented variables

* removed commented header

* renamed method to make it obvious it is created for Spark

* fixed comment alignment

* replaced GetPrimitiveArrayCritical with GetIntArrayElements for training. fixed dead-lock on databricks