From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 9 Mar 2014 13:18:09 +0000 (+0000)
Subject: move minham check earlier; this avoids some printing etc
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=matchsticks-search.git;a=commitdiff_plain;h=de6422218facb2a3c25c23e60d91a2464d7b2a83

move minham check earlier; this avoids some printing etc

apparent speedup of -j4 9 7 on zealot is about 10%
---

diff --git a/main.c b/main.c
index 97b4bbb..c5a4991 100644
--- a/main.c
+++ b/main.c
@@ -458,13 +458,6 @@ static void optimise(bool doprint) {
   if (!ok)
     goto out;
 
-  for (j=0; j<m; j++)
-    if (weight[j] < 2) {
-      PRINTF(" nominham");
-      goto out;
-    }
-
-
   /*
    * We formulate our problem as an LP problem as follows.
    * In this file "n" and "m" are the matchstick numbers.
@@ -635,6 +628,10 @@ static void iterate_recurse(int i, AdjWord min) {
   AdjWord jbit;
 
   if (i >= n) {
+    for (j=0; j<m; j++)
+      if (weight[j] < 2)
+	return;
+
     printcounter++;
     optimise(!(printcounter & 0xfff));
     return;