• Corpus ID: 118531410

# Latfield2: A c++ library for classical lattice field theory

@article{Daverio2015Latfield2AC,
title={Latfield2: A c++ library for classical lattice field theory},
author={David Daverio and Mark Hindmarsh and Neil Bevis},
journal={arXiv: Computational Physics},
year={2015}
}
• Published 23 August 2015
• Computer Science, Physics
• arXiv: Computational Physics
latfield2 is a C++ library designed to simplify writing parallel codes for solving partial differen- tial equations, developed for application to classical field theories in particle physics and cosmology. It is a significant rewrite of the latfield framework, moving from a slab domain decomposition to a rod decomposition, where the last two dimension of the lattice are scattered into a two dimensional process grid. Parallelism is implemented using the Message Passing Interface (MPI) standard…
gevolution: a cosmological N-body code based on General Relativity
• Physics
• 2016
We present a new N-body code, gevolution, for the evolution of large scale structure in the Universe. Our code is based on a weak field expansion of General Relativity and calculates all six metric
General relativistic cosmological N-body simulations. Part I. Time integration
• Physics
Journal of Cosmology and Astroparticle Physics
• 2019
This is the first in a series of papers devoted to fully general-relativistic $N$-body simulations applied to late-time cosmology. The purpose of this paper is to present the combination of a
Hubble-induced phase transitions on the lattice with applications to Ricci reheating
• Physics
Journal of Cosmology and Astroparticle Physics
• 2022
Using 3+1 classical lattice simulations, we follow the symmetry breaking pattern and subsequent non-linear evolution of a spectator field non-minimally coupled to gravity when the post-inflationary
A numerical relativity scheme for cosmological simulations
• Physics
• 2016
Cosmological simulations involving the fully covariant gravitational dynamics may prove relevant in understanding relativistic/non-linear features and, therefore, in taking better advantage of the
Cosmic Microwave Background constraints for global strings and global monopoles
• Physics
• 2017
We present the first CMB power spectra from numerical simulations of the global O(N) linear $\sigma$-model with N = 2,3, which have global strings and monopoles as topological defects. In order to
Classical production of ’t Hooft–Polyakov monopoles from magnetic fields
• Physics
• 2020
We show that in the SU(2) Georgi-Glashow model, 't Hooft--Polyakov monopoles are produced by a classical instability in magnetic fields above the Ambj\o{}rn-Olesen critical field, which coincides
Survival of pq-superstrings in field theory simulations
• Physics
• 2016
We perform large-scale field theoretical simulations in expanding universe to characterize a network of strings that can form composed bound states. The network consists of two copies of Abelian
Optimised all-to-all communication on multicore architectures applied to FFTs with pencil decomposition Basic algorithm Generalisation →
• 2018
All-to-all communication is a basic functionality of parallel communication libraries such as the Message Passing Interface (MPI). Typically there are multiple different algorithms underlying which
Relativistic N-body simulations with massive neutrinos
• Physics
• 2017
Some of the dark matter in the Universe is made up of massive neutrinos. Their impact on the formation of large scale structure can be used to determine their absolute mass scale from cosmology, but
Optimized all‐to‐all communication on multicore architectures applied to FFTs with pencil decomposition
• Computer Science
Concurr. Comput. Pract. Exp.
• 2019
An extension of the MPI standard is proposed in order to accommodate this and other algorithms in an efficient way, which exploits the fact that modern supercomputers combine shared memory Parallelism and distributed memory parallelism.

## References

SHOWING 1-10 OF 10 REFERENCES
Matrix Distributed Processing: A set of C++ Tools for implementing generic lattice computations on parallel systems
A set of programming tools for fast development of generic parallel (and non-parallel) lattice simulations for electromagnetism, electronics, condensed matter and lattice QCD are presented.
The Cactus Framework and Toolkit: Design and Applications
The design of the latest release of Cactus is described, a complete rewrite of earlier versions, which enables highly modular, multi-language, parallel applications to be developed by single researchers and large collaborations alike.
General relativistic N -body simulations in the weak field limit
• Physics
• 2013
We develop a formalism for general relativistic $N$-body simulations in the weak field regime, suitable for cosmological applications. The problem is kept tractable by retaining the metric
Affleck-Dine dynamics, Q -ball formation, and thermalization
We present both analytically and numerically a consistent analysis of the dynamics from the Affleck-Dine (AD) mechanism to the subsequent semiclassical evolution in both gravity-mediated and
Parallel Programming with Matrix Distributed Processing
A brief overview of MDP is presented and examples of applications in Computer Science, Engineering, Engineering and Physics are presented.
Energy-momentum correlations for Abelian Higgs cosmic strings
• Physics
• 2016
We report on the energy-momentum correlators obtained with recent numerical simulations of the Abelian Higgs model, essential for the computation of cosmic microwave background and matter
The Fastest Fourier Transform in the West
• Computer Science
• 1997
FFTW is typically faster than all other publicly available DFT software, including the well-known FFTPACK and the code from Numerical Recipes, and is competitive with or better than proprietary, highly-tuned codes such as Sun's PerformanceLibrary and IBM'sESSL library.
CMB power spectrum contribution from cosmic strings using field-evolution simulations of the Abelian Higgs model
• Physics
• 2007
We present the first field-theoretic calculations of the contribution made by cosmic strings to the temperature power spectrum of the cosmic microwave background (CMB). Unlike previous work, in which
The Design and Implementation of FFTW3
• Computer Science
Proceedings of the IEEE
• 2005
It is shown that such an approach can yield an implementation of the discrete Fourier transform that is competitive with hand-optimized libraries, and the software structure that makes the current FFTW3 version flexible and adaptive is described.
Tsumagari, Affleck-Dine dynamics, Q-ball formation and thermalisation
• Phys. Rev.,
• 2009