     }
 
 
-//! Take 1/2 first 1/2 step forward in the NVE integration step
+// Take the second 1/2 step forward in the NVE integration step
 /*! \param pdata Particle data to step forward 1/2 step
     \param rigid_data Rigid body data to step forward 1/2 step
     \param d_group_members Device array listing the indicies of the mebers of the group to integrate

        }
    }

//! Takes the first 1/2 step forward in the NVE integration step
/*! \param pdata Particle data to step forward 1/2 step
    \param rigid_data Rigid body data to step forward 1/2 step
    \param d_group_members Device array listing the indicies of the mebers of the group to integrate

extern __shared__ float4 sum[];

//! Calculates the body forces and torques by summing the constituent particle forces
/*! \param rdata_force Body forces
    \param rdata_torque Body torques
    \param n_bodies Number of rigid bodies
    \param local_beg Starting body index in this card
    \param nmax Maximum number of particles in a rigid body
    \param window_size Window size for reduction
    \param box Box dimensions for periodic boundary condition handling
