GRAMSCI: GRAph Made Statistics for Cosmological Information

What's new in 2.5.0 Added Exact signed-volume parity (-exactparity): the odd-channel sign is computed from the exact galaxy positions rather than quantized spoke directions, eliminating direction-pixel attenuation entirely (recovered asymmetry consistent with unity for every tetrahedron family, including near-degenerate flattened and sheared shapes) at ~1.1–1.2× query cost. Runtime direction-pixel grid (-ntheta/-nphi) for the pixelized parity mode; pixel indices are now 16-bit (products up to 32767 pixels). Delete-one jackknife resampling for the 3PCF (CPU and GPU). GitHub Actions CI. Changed The default parity direction grid is now 8 × 32 (was 4 × 16), removing the recovered-asymmetry attenuation of near-degenerate configurations at <10% extra query cost. Full history in CHANGELOG.md.

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Publication Details

Journal
Astrophysics Source Code Library
Published
2026-08-25
DOI
https://doi.org/10.5281/zenodo.22091541
Citations
1
Primary Topic
History of Science and Medicine
Type
article
Field-Weighted Citation Impact
0.00
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article

GRAMSCI: GRAph Made Statistics for Cosmological Information

Cristiano G. Sabiu
1 citations
Astrophysics Source Code Library
History of Science and Medicine
article

GRAMSCI: GRAph Made Statistics for Cosmological Information

Cristiano G. Sabiu
article en
1 citations

Abstract

What's new in 2.5.0 Added Exact signed-volume parity (-exactparity): the odd-channel sign is computed from the exact galaxy positions rather than quantized spoke directions, eliminating direction-pixel attenuation entirely (recovered asymmetry consistent with unity for every tetrahedron family, including near-degenerate flattened and sheared shapes) at ~1.1–1.2× query cost. Runtime direction-pixel grid (-ntheta/-nphi) for the pixelized parity mode; pixel indices are now 16-bit (products up to 32767 pixels). Delete-one jackknife resampling for the 3PCF (CPU and GPU). GitHub Actions CI. Changed The default parity direction grid is now 8 × 32 (was 4 × 16), removing the recovered-asymmetry attenuation of near-degenerate configurations at <10% extra query cost. Full history in CHANGELOG.md.

Astrophysics Source Code Library
University of Seoul (KR)
Openalex Percentile: Top 100%
History of Science and Medicine
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