FORTRAN code for the three-dimensional Ising model

✍ Scribed by Michael Creutz; K.J.M. Moriarty

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 556 KB
• Volume: 39
• Category: Article
• ISSN: 0010-4655
• DOI: 10.1016/0010-4655(86)90128-1

✦ Synopsis

Title of program: MICROIS mentary magnets in a large three-dimensional Ising model system so that the critical inverse temperature and critical Catalogue number: AADW exponents can be measured. Program available from: CPC Program Library, Queen's Uni-Method of solution versity of Belfast, N. Ireland (see application form in this issue) An essentially deterministic technique called the microcanonical method with demons [1] is used to obtain equilibriated Computer: CDC CYBER 170-730 (dual processor); Installa-elementary magnetic configurations. Spin correlations at a tion: Dalhousie University Computer Center variety of separations can be measured. Operating system: CDC NOS 2.2 Restrictions on the complexity of the program In order to reduce the errors on our measurements, reasonably Programming language used: FORTRAN-77 long run times are required which is the only restriction on the use of the program. Primary memory is not a restriction as very High speed storage required: 25 Kwords little memory is required. Number of bits in a word: 60 Typical running time The test run on an 82 x 120 lattice with 10 iterations through Peripherals used: terminal, line printer the lattice, each with 10 sweeps, took 3.2 s on the CDC CYBER 170-730. Number of lines in combined program and rest deck: 452