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GAF sorting improvements - #5024

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jltsiren merged 2 commits into
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gaf-sorting-improvements
Aug 28, 2026
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GAF sorting improvements#5024
jltsiren merged 2 commits into
masterfrom
gaf-sorting-improvements

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Changelog Entry

To be copied to the draft changelog by merger:

  • vg gamsort sorts GAF by GBWT node id intervals for better compatibility with GAF-base.
  • vg gamsort option --two-merge-rounds to guarantee at most two rounds of merges when sorting GAF.

Description

Some small improvements to GAF sorting with vg gamsort. Sorting is now done by GBWT (oriented) node id intervals rather than vg (unoriented) node id intervals to meet the expectations of GAF-base. There is also option --two-merge-rounds that increases the merge width when necessary to guarantee at most two merge rounds.

@jltsiren
jltsiren merged commit aecd4dc into master Aug 28, 2026
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@jltsiren
jltsiren deleted the gaf-sorting-improvements branch August 28, 2026 00:55
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