CVSROOT: /cvs/ppl Module name: ppl Branch: simplex Changes by: cimino@cs.unipr.it 2006-03-08 21:43:17 Modified files: src : LP_Problem.cc LP_Problem.defs.hh Log message: Major improvement: check if a slack variable can avoid to insert an (useless) artificial variable. Now (in the standard way, not incremental) the simplex solves `boeing1.mps --max' in half the time than before! Patches: http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/LP_Problem.cc.diff?cvsroot... http://www.cs.unipr.it/cgi-bin/cvsweb.cgi/ppl/src/LP_Problem.defs.hh.diff?cv...