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AbacusSummit: A Massive Set of High-Accuracy, High-Resolution -Body Simulations
Nina A. Maksimova, Lehman H. Garrison, Daniel J. Eisenstein +3
We present the public data release of the AbacusSummit cosmological -body simulation suite, produced with the -body code on the Summit supercomputer of the…
The Cosmological -body Code
Lehman H. Garrison, Daniel J. Eisenstein, Douglas Ferrer +2
We present , a fast and accurate cosmological -body code based on a new method for calculating the gravitational potential from a static multipole mesh. The met…
ENCORE: An Estimator for Galaxy -Point Correlation Functions
Oliver H. E. Philcox, Zachary Slepian, Jiamin Hou +3
We present a new algorithm for efficiently computing the -point correlation functions (NPCFs) of a 3D density field for arbitrary . This can be applied both to a discrete spe…
Checkpointing with cp: the POSIX Shared Memory System
Lehman H. Garrison, Daniel J. Eisenstein, Nina A. Maksimova
We present the checkpointing scheme of Abacus, an -body simulation code that allocates all persistent state in POSIX shared memory, or ramdisk. Checkpointing becomes as simple a…
Good and Proper: Self-similarity of N-body Simulations with Proper Force Softening
Lehman H. Garrison, Michael Joyce, Daniel J. Eisenstein
Analysis of self-similarity in scale-free -body simulations reveals the spatial and temporal scales for which statistics measured in cosmological simulations are converged to th…