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PERF: Use block-wise parallelism for unique. #4916

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mvashishtha opened this issue Sep 1, 2022 · 0 comments
Open

PERF: Use block-wise parallelism for unique. #4916

mvashishtha opened this issue Sep 1, 2022 · 0 comments
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P2 Minor bugs or low-priority feature requests Performance 🚀 Performance related issues and pull requests.

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@mvashishtha
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unique is a full-axis operation in Modin. We should see whether leveraging parallelism across both axes can help us. We could try something like

  1. get unique for each block partition
  2. combine results for each column partition
  3. get unique for each merged result

This came up here: #4798 (comment)

cc @vnlitvinov
@mvashishtha mvashishtha added Performance 🚀 Performance related issues and pull requests. P2 Minor bugs or low-priority feature requests labels Sep 1, 2022
@mvashishtha mvashishtha mentioned this issue Sep 1, 2022
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