AbacusSummit: a massive set of high-accuracy, high-resolution N-body simulations

Maksimova, Nina A; Garrison, Lehman H; Eisenstein, Daniel J; Hadzhiyska, Boryana; Bose, Sownak; Satterthwaite, Thomas P

doi:10.1093/mnras/stab2484

AbacusSummit: a massive set of high-accuracy, high-resolution N-body simulations

Maksimova, Nina A; Garrison, Lehman H; Eisenstein, Daniel J; Hadzhiyska, Boryana; Bose, Sownak; Satterthwaite, Thomas P

Authors

Nina A Maksimova

Lehman H Garrison

Daniel J Eisenstein

Boryana Hadzhiyska

Dr Sownak Bose sownak.bose@durham.ac.uk
UKRI Future Leaders Fellowship

Thomas P Satterthwaite

Abstract

We present the public data release of the ABACUSSUMMIT cosmological N-body simulation suite, produced with the ABACUS N-body code on the Summit supercomputer of the Oak Ridge Leadership Computing Facility. ABACUS achieves O(10−5) median fractional force error at superlative speeds, calculating 70M particle updates per second per node at early times, and 45M particle updates per second per node at late times. The simulation suite totals roughly 60 trillion particles, the core of which is a set of 139 simulations with particle mass 2×109h−1M⊙ in box size 2h−1Gpc⁠. The suite spans 97 cosmological models, including Planck 2018, previous flagship simulation cosmologies, and a linear derivative and cosmic emulator grid. A subsuite of 1883 boxes of size 500h−1Mpc is available for covariance estimation. ABACUSSUMMIT data products span 33 epochs from z = 8 to 0.1 and include light cones, full particle snapshots, halo catalogues, and particle subsets sampled consistently across redshift. ABACUSSUMMIT is the largest high-accuracy cosmological N-body data set produced to date.

Citation

Maksimova, N. A., Garrison, L. H., Eisenstein, D. J., Hadzhiyska, B., Bose, S., & Satterthwaite, T. P. (2021). AbacusSummit: a massive set of high-accuracy, high-resolution N-body simulations. Monthly Notices of the Royal Astronomical Society, 508(3), 4017-4037. https://doi.org/10.1093/mnras/stab2484

Journal Article Type	Article
Acceptance Date	Aug 25, 2021
Online Publication Date	Sep 7, 2021
Publication Date	2021-12
Deposit Date	Dec 7, 2021
Publicly Available Date	Dec 7, 2021
Journal	Monthly Notices of the Royal Astronomical Society
Print ISSN	0035-8711
Electronic ISSN	1365-2966
Publisher	Royal Astronomical Society
Peer Reviewed	Peer Reviewed
Volume	508
Issue	3
Pages	4017-4037
DOI	https://doi.org/10.1093/mnras/stab2484

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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2021, The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.