From a6a48cfd370b226955a531e678016db414ebeed9 Mon Sep 17 00:00:00 2001
From: Gilles <erans@apache.org>
Date: Sat, 11 Jun 2016 20:31:44 +0200
Subject: [PATCH] MATH-1377

Short-circuit unnecessary computations.
---
 .../optim/nonlinear/scalar/noderiv/SimplexOptimizer.java     | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/main/java/org/apache/commons/math4/optim/nonlinear/scalar/noderiv/SimplexOptimizer.java b/src/main/java/org/apache/commons/math4/optim/nonlinear/scalar/noderiv/SimplexOptimizer.java
index cd1ca1dd2..9658944a1 100644
--- a/src/main/java/org/apache/commons/math4/optim/nonlinear/scalar/noderiv/SimplexOptimizer.java
+++ b/src/main/java/org/apache/commons/math4/optim/nonlinear/scalar/noderiv/SimplexOptimizer.java
@@ -166,6 +166,11 @@ public class SimplexOptimizer extends MultivariateOptimizer {
                     PointValuePair prev = previous[i];
                     converged = converged &&
                         checker.converged(iteration, prev, simplex.getPoint(i));
+
+                    if (!converged) {
+                        // Short circuit, since "converged" will stay "false".
+                        break;
+                    }
                 }
                 if (converged) {
                     // We have found an optimum.