git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@13951 f3b2605a-c512-4ea7-a41b-209d697bcdaa

src/fix_temp_rescale.cpp

@@ -133,6 +133,13 @@ void FixTempRescale::init()
 void FixTempRescale::end_of_step()
 {
   double t_current = temperature->compute_scalar();
+
+  // there is nothing to do, if there are no degrees of freedom
+
+  if (temperature->dof < 1) return;
+
+  // protect against division by zero.
+
   if (t_current == 0.0)
     error->all(FLERR,"Computed temperature for fix temp/rescale cannot be 0.0");