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Manuscript Title: tmLQCD: a program suite to simulate Wilson Twisted mass Lattice QCD | ||

Authors: Karl Jansen, Carsten Urbach | ||

Program title: tmLQCD | ||

Catalogue identifier: AEEH_v1_0Distribution format: tar.gz | ||

Journal reference: Comput. Phys. Commun. 180(2009)2717 | ||

Programming language: C and MPI. | ||

Computer: any. | ||

Operating system: any with a standard C compiler. | ||

Has the code been vectorised or parallelized?: Yes. One or optionally any even number of processors may be used. Tested with up to 32768 processors. | ||

RAM: no typical values available | ||

Keywords: Hybrid Monte Carlo algorithm, Lattice QCD. | ||

PACS: 11.15.-q, 11.15.Ha, 11.38.-t, 11.38.Gc. | ||

Classification: 11.5. | ||

External routines: LAPACK [1] and LIME [2] library. | ||

Nature of problem:Quantum Chromodynamics. | ||

Solution method:Markov Chain Monte Carlo using the Hybrid Monte Carlo algorithm with mass preconditioning and multiple time scales [3]. Iterative solver for large systems of linear equations. | ||

Restrictions:Restricted to an even number of (not necessarily mass degenerate) quark flavours in the Wilson or Wilson twisted mass formulation of lattice QCD. | ||

Running time:Depending on the problem size, the architecture and the input parameters from a few minutes to weeks. | ||

References: | ||

[1] | http://www.netlib.org/lapack/. | |

[2] | USQCD, http://usqcd.jlab.org/usqcd-docs/c-lime/. | |

[3] | C. Urbach, K. Jansen, A. Shindler and U. Wenger, Comput. Phys. Commun. 174, 87 (2006), hep-lat/0506011. |

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