From b893cd231686686783b7a32bc429803760c86352 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ian@liberator.relativity.greenend.org.uk>
Date: Mon, 5 Oct 2009 01:05:03 +0100
Subject: [PATCH 1/1] routesearch: use presolver

---
 yarrg/rsvalue.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/yarrg/rsvalue.c b/yarrg/rsvalue.c
index 3bf98b4..30e5612 100644
--- a/yarrg/rsvalue.c
+++ b/yarrg/rsvalue.c
@@ -198,6 +198,7 @@ double value_route(int nislands, const int *islands, int exclude_arbitrage) {
   lp= lpx_create_prob();
   lpx_set_obj_dir(lp, LPX_MAX);
   lpx_set_int_parm(lp, LPX_K_MSGLEV, DEBUGP(lp) ? 3 : 1);
+  lpx_set_int_parm(lp, LPX_K_PRESOL, 1);
 
   if (DEBUGP(value)) {
     lpx_set_prob_name(lp,(char*)"value_route");
-- 
2.30.2