Monte Carlo Simulations of Spin Systems on Multi-core Processors

Guidetti, M.; Maiorano, Andrea; Mantovani, Filippo; Pivanti, Marcello; Schifano, Sebastiano Fabio; Tripiccione, R.

doi:10.1007/978-3-642-28151-8_22

Cited by 6 publications

(1 citation statement)

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“…In the following years, processors have changed significantly with the introduction of many-core CPUs and of general purpose GPUs; these are better SG machines than traditional CPUs as one maps the available parallelism on more cores (or on more threads, for GPUs). Over the years, we have compared [43,44] JANUS with several multi-core systems. In Table 1 we report the best SUT measured on several processors for a simulation of a lattice of 64 3 sites.…”

Section: Performance Comparison With Commodity Computersmentioning

confidence: 99%

Janus II: A new generation application-driven computer for spin-system simulations

Baity‐Jesi

Baños

Cruz

et al. 2014

Computer Physics Communications

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This paper describes the architecture, the development and the implementation of Janus II, a new generation application-driven number cruncher optimized for Monte Carlo simulations of spin systems (mainly spin glasses). This domain of computational physics is a recognized grand challenge of high-performance computing: the resources necessary to study in detail theoretical models that can make contact with experimental data are by far beyond those available using commodity computer systems. On the other hand, several specific features of the associated algorithms suggest that unconventional computer architectures - that can be implemented with available electronics technologies - may lead to order of magnitude increases in performance, reducing to acceptable values on human scales the time needed to carry out simulation campaigns that would take centuries on commercially available machines. Janus II is one such machine, recently developed and commissioned, that builds upon and improves on the successful JANUS machine, which has been used for physics since 2008 and is still in operation today. This paper describes in detail the motivations behind the project, the computational requirements, the architecture and the implementation of this new machine and compares its expected performances with those of currently available commercial systems. (C) 2013 Elsevier B.V. All rights reserved

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Section: Performance Comparison With Commodity Computersmentioning

confidence: 99%