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  What is the main function of nvcomp LZ4 codec and what scene is it used for？ [QST]

  question Further information is requested

  chenrui17 asked Sep 29, 2020 in General · Answered

  

  

  

  

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  how to enter SparkSession function in SparkQueryCompareTestSuite.scala when I do unit test

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  chenrui17 asked Oct 19, 2020 in General · Answered

  

  

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  [QST] Recommended approach for a reference avro writer/reader

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  galipremsagar asked Oct 11, 2020 in General · Answered

  

  

  

  

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  [QST] I need someone to help explain the shuffle read code in rapids (thanks very much)

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  JustPlay asked Sep 28, 2020 in General · Answered

  

  

  

  

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  [QST] Some question about spark.rapids.sql.format.parquet.multiThreadedRead

  question Further information is requested

  JustPlay asked Sep 29, 2020 in General · Answered

  

  

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  [QST]The Tpcx_bb query#5,#16,#21,#22 on GPU are slower than CPU

  question Further information is requested

  YeahNew asked Sep 9, 2020 in General · Answered

  

  

  

  

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  [QST] Some confusion for GpuSemaphore.releaseIfNecessary()

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  JustPlay asked Sep 25, 2020 in General · Answered

  

  

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  [QST] Can AbstractGpuCoalesceIterator.next() split bigger betch into small ones if not RequireSingleBatch?

  question Further information is requested

  JustPlay asked Sep 24, 2020 in General · Answered

  

  

  

  

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  [QST] deserializeStream() will acquire gpu semaphore，but why serializeStream() do not release the gpu semaphore explicitly ?

  documentation Improvements or additions to documentation question Further information is requested

  JustPlay asked Sep 24, 2020 in General · Answered

  

  

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  [QST] whether the gpu semaphore was acquired-released at task-lifetime level or batch-lifetime level ?

  question Further information is requested

  JustPlay asked Sep 23, 2020 in General · Answered

  

  

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  [QST] can we first filter then join?

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  JustPlay asked Sep 11, 2020 in General · Answered

  

  

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  [BUG] Does spark/rapids really has the gpu-aware task scheduling ability？

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  JustPlay asked Sep 8, 2020 in General · Answered

  

  

  

  

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  [QST] RAPIDS can't work if I use more than one executors for a server in yarn mode，What can I do?

  question Further information is requested

  jiajia2017 asked Sep 1, 2020 in General · Answered

  

  

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  [QST]The GPU does not seem to be called when submitting a Spark application【DataFrameExample,LR,GBDT etc】

  question Further information is requested

  YeahNew asked Aug 28, 2020 in General · Unanswered

  

  

  

  

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  Does rapids support CBO optimization ?[QST]

  question Further information is requested

  chenrui17 asked Aug 13, 2020 in General · Answered

  

  

  

  

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  [QST]!NOT_FOUND <InMemoryTableScanExec> cannot run on GPU

  question Further information is requested

  PerkzZheng asked Jul 15, 2020 in General · Answered

  

  

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