Efficient RK4, as provided by Yosef Zlochower.

git-svn-id: http://svn.cactuscode.org/arrangements/CactusNumerical/MoL/trunk@113 578cdeb0-5ea1-4b81-8215-5a3b8777ee0b

1 files changed, 4 insertions, 0 deletions

diff --git a/src/IndexArrays.c b/src/IndexArrays.c
index 5e59734..e30d169 100644
--- a/src/IndexArrays.c
+++ b/src/IndexArrays.c
@@ -304,6 +304,10 @@ void MoL_SetupIndexArrays(CCTK_ARGUMENTS)
   {
     sprintf(infoline, "Runge-Kutta 3");
   }
+  else if (CCTK_EQUALS(ODE_Method,"RK4")) 
+  {
+    sprintf(infoline, "Runge-Kutta 4");
+  }
   else if (CCTK_EQUALS(ODE_Method,"RK45")) 
   {
     sprintf(infoline, "Runge-Kutta 45 (Fehlberg)");