The RANLUX generator: resonances in a random walk test

Abstract

Using a recently proposed directed random walk test, we systematically investigate the popular random number generator RANLUX developed by Luescher and implemented by James. We confirm the good quality of this generator with the recommended luxury level. At a smaller luxury level (for instance equal to 1) resonances are observed in the random walk test. We also find that the lagged Fibonacci and Subtract-with-Carry recipes exhibit similar failures in the random walk test. A revised analysis of the corresponding dynamical systems leads to the observation of resonances in the eigenvalues of Jacobi matrix.

18 pages with 14 figures, Essential addings in the Abstract only

References in corpus (2)

• A Portable High-Quality Random Number Generator for Lattice Field Theory Simulations
• Simulation of a directed random-walk model: the effect of pseudo-random-number correlations

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