November 17, 2021 Presentation Open Access

Cherian, Deepak

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  <identifier identifierType="DOI">10.5281/zenodo.5772165</identifier>
  <creators>
    <creator>
      <creatorName>Cherian, Deepak</creatorName>
      <givenName>Deepak</givenName>
      <familyName>Cherian</familyName>
      <nameIdentifier nameIdentifierScheme="ORCID" schemeURI="http://orcid.org/">0000-0002-6861-8734</nameIdentifier>
      <affiliation>NCAR</affiliation>
    </creator>
  </creators>
  <titles>
    <title>flox: Fast &amp; furious GroupBy reductions with Dask at Pangeo-scale</title>
  </titles>
  <publisher>Zenodo</publisher>
  <publicationYear>2021</publicationYear>
  <subjects>
    <subject>Pangeo</subject>
    <subject>Xarray</subject>
  </subjects>
  <dates>
    <date dateType="Issued">2021-11-17</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Presentation</resourceType>
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    <alternateIdentifier alternateIdentifierType="url">https://zenodo.org/record/5772165</alternateIdentifier>
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    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsVersionOf">10.5281/zenodo.5772164</relatedIdentifier>
    <relatedIdentifier relatedIdentifierType="URL" relationType="IsPartOf">https://zenodo.org/communities/pangeo</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="https://creativecommons.org/licenses/by/4.0/legalcode">Creative Commons Attribution 4.0 International</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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  <descriptions>
    <description descriptionType="Abstract">&lt;p&gt;The &amp;quot;groupby&amp;quot; or the &amp;quot;split-apply-combine&amp;quot; paradigm is ubiquitous in scientific analysis, though it may be named differently e.g. &amp;quot;binning&amp;quot;, &amp;quot;histogramming&amp;quot;, &amp;quot;resampling&amp;quot;, &amp;quot;compositing&amp;quot;, or &amp;quot;climatology reductions&amp;quot;. Xarray implements the groupby paradigm through a &amp;quot;GroupBy&amp;quot; object. Historically the underlying algorithm is not dask-aware, and tends to fail disastrously with large Pangeo-scale distributed workflows.&amp;nbsp;Here I present &amp;quot;flox&amp;quot;: a new package that explores effective strategies for groupby reductions at scale with dask. Ongoing work will plug this package in to xarray in a backwards-compatible manner, allowing the community to seamlessly benefit from significantly more efficient groupby computations.See&amp;nbsp;https://flox.readthedocs.io&amp;nbsp;for more.&lt;/p&gt;</description>
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