int mask = 0;

  mask |= INITIAL_INTEGRATE;

  mask |= FINAL_INTEGRATE;

  mask |= PRE_NEIGHBOR;

  mask |= POST_FORCE;

  mask |= INITIAL_INTEGRATE_RESPA;

  mask |= FINAL_INTEGRATE_RESPA;

  final_integrate();

}

/* ----------------------------------------------------------------------

   remap xcm of each rigid body back into periodic simulation box

   done during pre_neighbor so will be after call to pbc()

     and after fix_deform::pre_exchange() may have flipped box

   if don't do this, then atoms of a body which drifts far away

     from a triclinic box will be remapped back into box

     with huge displacements when the box tilt changes via set_x() 

   NOTE: cannot do this by changing xcm of each body in cluster

         or even 1st body in cluster

	 b/c POEMS library does not see xcm but only sets xcm

	 so remap needs to be coordinated with POEMS library

	 thus this routine does nothing for now

------------------------------------------------------------------------- */

void FixPOEMS::pre_neighbor() {}

/* ----------------------------------------------------------------------

   count # of degrees-of-freedom removed by fix_poems for atoms in igroup 

------------------------------------------------------------------------- */

   flag = 0/1 means map from box to lamda coords or vice versa

   NOTE: cannot do this by changing xcm of each body in cluster

         or even 1st body in cluster

	 b/c POEMS does not see xcm but only sets xcm

	 so dilation needs to be coordinated with POEMS

	 this routine does nothing for now

	 b/c POEMS library does not see xcm but only sets xcm

	 so deform needs to be coordinated with POEMS library

	 thus this routine does nothing for now

------------------------------------------------------------------------- */

void FixPOEMS::deform(int flag) {}

  int pack_exchange(int, double *);

  int unpack_exchange(int, double *);

  void pre_neighbor();

  int dof(int);

  void deform(int);