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Accelerating Apache Spark 3.0 with RAPIDS and GPUs
Robert Evans, NVIDIA | Jason Lowe, NVIDIA
GTC 2020
Utilizing accelerators in Apache Spark presents opportunities for significant speedup of ETL, ML and DL applications. In this talk we give an overview of accelerator aware task scheduling, columnar data processing support, fractional scheduling, and stage level resource scheduling and configuration. Furthermore, we dive into the Apache Spark 3.x RAPIDS plugin, which enables applications to take advantage of GPU acceleration with no code change. An explanation of how the Catalyst optimizer physical plan is modified for GPU aware scheduling is reviewed. The talk touches upon how the plugin can take advantage of the RAPIDS specific libraries, cudf, cuio and rmm to run tasks on the GPU. Optimizations were also made to the shuffle plugin to take advantage of the GPU using UCX, a unified communication framework that addresses GPU memory intra and inter node.