added Verlet scheme and NxN non-bonded functionality

[alexxy/gromacs.git] / src / mdlib / partdec.c

diff --git a/src/mdlib/partdec.c b/src/mdlib/partdec.c
index e5b8ab249e076f30b0bee23246568874f8645eab..1837d21f07c39a9b0def42ce81786a7837e225bb 100644 (file)
--- a/src/mdlib/partdec.c
+++ b/src/mdlib/partdec.c
@@ -336,6 +336,11 @@ pd_move_x_constraints(t_commrec *  cr,
         pd  = cr->pd;
         pdc = pd->constraints;
         
+       if (pdc == NULL)
+       {
+               return;         
+       }
+
         thisnode  = cr->nodeid;
         
         /* First pulse to right */