void voxel_gen(double range[6], double c_range[2], int nv[3], double *voxel_dxyz, double *voxel_orig_xyz, int *level, int *voxel_n_neighbor_pe, int **voxel_neighbor_pe, HECMW_Comm VIS_COMM, int vox_on, int display_range_on, double display_range[6])
int * voxel_n_neighbor_pe