BryanCutler commented on issue #25545: [SPARK-28843][PYTHON] Set OMP_NUM_THREADS to executor cores for python URL: https://github.com/apache/spark/pull/25545#issuecomment-524034941 @rdblue just wondering if you observed the excess memory consumption from OpenMP threads from stock PySpark code, maybe from Pandas or MLlib stuff, or are you running some numpy operations in your own code on the executors?
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