Add prunning kernel

Signed-off-by: Rafael Ravedutti <rafaelravedutti@gmail.com>

gromacs/includes/neighbor.h

@@ -37,6 +37,7 @@ extern void initNeighbor(Neighbor*, Parameter*);
 extern void setupNeighbor(Parameter*, Atom*);
 extern void binatoms(Atom*);
 extern void buildNeighbor(Atom*, Neighbor*);
+extern void pruneNeighbor(Parameter*, Atom*, Neighbor*);
 extern void sortAtom(Atom*);
 extern void buildClusters(Atom*);
 extern void binClusters(Atom*);

gromacs/includes/parameter.h

@@ -42,6 +42,7 @@ typedef struct {
     int ntimes;
     int nstat;
     int every;
+    int prune_every;
     MD_FLOAT dt;
     MD_FLOAT dtforce;
     MD_FLOAT cutforce;