There are four files in this directory. PRICE.f This file contains a stand alone code for global optimization. The implemented algorithm is that of "Controled Random Search" originally presented by Price and later on modified by others. This is a modification due to Theos, Lagaris & Papageorgiou. The rest of the files are needed to implement the above algorithm as a Merlin 3.0 Plug-in. CONFIG The Merlin configuration file that associates the plugin # 1 with the command PRICE PDESC.add The addition that must be made to the PDESC file. This file must be appended to PDESC plug1.f The modified routine SUBROUTINE PLUG1 (that must replace the one contained in Merlin) along with the rest of the code that implements the "Controled Random Search" algorithm. globus.ps Documentation.