[SPARKNLP-1317] Further NerDL Optimizations #14699
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Threaded NerDLDataLoader fetches batches in the background while training is happening in NerDLApproach, reducing idle time in the driver thread.
Allow NerDLApproach to repartition the input dataset, so the driver does not go out of memory when training on large partitions.
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Description
This PR introduces further optimizations for NerDLApproach:
setEnableMemoryOptimizer(true)andsetPrefetchBatches(int)setOptimizePartitioning(false).Motivation and Context
How Has This Been Tested?
Old and new tests passing