AbacusSummit: A Massive Set of High-Accuracy, High-Resolution \${N}\$-Body Simulations. Maksimova, N. A., Garrison, L. H., Eisenstein, D. J., Hadzhiyska, B., Bose, S., & Satterthwaite, T. P. Monthly Notices of the Royal Astronomical Society, 508(3):4017–4037, October, 2021. arXiv: 2110.11398![AbacusSummit: A Massive Set of High-Accuracy, High-Resolution \${N}\$-Body Simulations [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex We present the public data release of the AbacusSummit cosmological \$N\$-body simulation suite, produced with the \${\textbackslash}texttt\{Abacus\}\$ \$N\$-body code on the Summit supercomputer of the Oak Ridge Leadership Computing Facility. \${\textbackslash}texttt\{Abacus\}\$ achieves \${\textbackslash}mathcal\{O\}{\textbackslash}left(10{\textasciicircum}\{-5\}{\textbackslash}right)\$ 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{\textbackslash}times10{\textasciicircum}\{9\}{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{M\}_{\textbackslash}odot\$ in box size \$2{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{Gpc\}\$. The suite spans 97 cosmological models, including Planck 2018, previous flagship simulation cosmologies, and a linear derivative and cosmic emulator grid. A sub-suite of 1883 boxes of size \$500{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{Mpc\}\$ is available for covariance estimation. AbacusSummit data products span 33 epochs from \$z=8\$ to \$0.1\$ and include lightcones, full particle snapshots, halo catalogs, and particle subsets sampled consistently across redshift. AbacusSummit is the largest high-accuracy cosmological \$N\$-body data set produced to date.
@article{maksimova_abacussummit_2021,
title = {{AbacusSummit}: {A} {Massive} {Set} of {High}-{Accuracy}, {High}-{Resolution} \${N}\$-{Body} {Simulations}},
volume = {508},
issn = {0035-8711, 1365-2966},
shorttitle = {{AbacusSummit}},
url = {http://arxiv.org/abs/2110.11398},
doi = {10.1093/mnras/stab2484},
abstract = {We present the public data release of the AbacusSummit cosmological \$N\$-body simulation suite, produced with the \${\textbackslash}texttt\{Abacus\}\$ \$N\$-body code on the Summit supercomputer of the Oak Ridge Leadership Computing Facility. \${\textbackslash}texttt\{Abacus\}\$ achieves \${\textbackslash}mathcal\{O\}{\textbackslash}left(10{\textasciicircum}\{-5\}{\textbackslash}right)\$ 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{\textbackslash}times10{\textasciicircum}\{9\}{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{M\}\_{\textbackslash}odot\$ in box size \$2{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{Gpc\}\$. The suite spans 97 cosmological models, including Planck 2018, previous flagship simulation cosmologies, and a linear derivative and cosmic emulator grid. A sub-suite of 1883 boxes of size \$500{\textbackslash},h{\textasciicircum}\{-1\}{\textbackslash}mathrm\{Mpc\}\$ is available for covariance estimation. AbacusSummit data products span 33 epochs from \$z=8\$ to \$0.1\$ and include lightcones, full particle snapshots, halo catalogs, and particle subsets sampled consistently across redshift. AbacusSummit is the largest high-accuracy cosmological \$N\$-body data set produced to date.},
number = {3},
urldate = {2021-10-25},
journal = {Monthly Notices of the Royal Astronomical Society},
author = {Maksimova, Nina A. and Garrison, Lehman H. and Eisenstein, Daniel J. and Hadzhiyska, Boryana and Bose, Sownak and Satterthwaite, Thomas P.},
month = oct,
year = {2021},
note = {arXiv: 2110.11398},
keywords = {Astrophysics - Cosmology and Nongalactic Astrophysics},
pages = {4017--4037},
}
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The simulation suite totals roughly 60 trillion particles, the core of which is a set of 139 simulations with particle mass \\$2{\\textbackslash}times10{\\textasciicircum}\\{9\\}{\\textbackslash},h{\\textasciicircum}\\{-1\\}{\\textbackslash}mathrm\\{M\\}_{\\textbackslash}odot\\$ in box size \\$2{\\textbackslash},h{\\textasciicircum}\\{-1\\}{\\textbackslash}mathrm\\{Gpc\\}\\$. The suite spans 97 cosmological models, including Planck 2018, previous flagship simulation cosmologies, and a linear derivative and cosmic emulator grid. A sub-suite of 1883 boxes of size \\$500{\\textbackslash},h{\\textasciicircum}\\{-1\\}{\\textbackslash}mathrm\\{Mpc\\}\\$ is available for covariance estimation. AbacusSummit data products span 33 epochs from \\$z=8\\$ to \\$0.1\\$ and include lightcones, full particle snapshots, halo catalogs, and particle subsets sampled consistently across redshift. 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