int * voxel_n_neighbor_pe
void refinement(struct hecmwST_local_mesh *mesh, double *node1, int n_voxel, double *voxel_dxyz, double *voxel_orig_xyz, int *level, int *voxel_n_neighbor_pe, int **voxel_neighbor_pe, double *extent, int my_rank, HECMW_Comm VIS_COMM, int *empty_flag, double *var)