lower tolerance for dual optimization in MMA/CCSAQ; thanks to Christophe...

lower tolerance for dual optimization in MMA/CCSAQ; thanks to Christophe Leruste for the problem report

Ignore-this: b8b4e324f9626f48a8e71d15dcb04c0e

darcs-hash:20111126195413-c8de0-7d5070a069d030f85c5dc42fe643af015290ae9e.gz

api/optimize.c

@@ -651,7 +651,7 @@ static nlopt_result nlopt_optimize_(nlopt_opt opt, double *x, double *minf)
 				      nlopt_count_constraints(opt->m,
 							      opt->fc));
 	      if (!dual_opt) return NLOPT_FAILURE;
-	      nlopt_set_ftol_rel(dual_opt, LO(ftol_rel, 1e-12));
+	      nlopt_set_ftol_rel(dual_opt, LO(ftol_rel, 1e-14));
 	      nlopt_set_ftol_abs(dual_opt, LO(ftol_abs, 0.0));
 	      nlopt_set_maxeval(dual_opt, LO(maxeval, 100000));
 #undef LO