CUTEr (and SifDec), a Constrained and Unconstrained Testing Environment. Revisited, http://hsl.rl.ac.uk/cuterwww

Abstract. The initial release of CUTE, a widely used testing environment for opti-mization software was described in [2]. The latest version, now known as CUTEr is presented. New features include reorganisation of the environment to allow simultane-ous multi-platform installation, new tools for, and interfaces to, optimization packages, and a considerably simplied and entirely automated installation procedure for unix systems. The SIF decoder, which used to be a part of CUTE, has become a separate tool, easily callable by various packages. It features simple extensions to the SIF test problem format and the generation of les suited to automatic dierentiation packages. Key words. Nonlinear constrained optimization, testing environment, shared lesystems, heterogeneous environment, SIF format 1