4:  #include <../src/ksp/pc/impls/is/pcis.h>
  5:  #include <../src/ksp/pc/impls/bddc/bddcstructs.h>

  7: /* Private context (data structure) for the BDDC preconditioner.  */
  8: typedef struct {
  9:   /* First MUST come the folowing line, for the stuff that is common to FETI and Neumann-Neumann. */
 10:   PC_IS         pcis;
 11:   /* Coarse stuffs needed by BDDC application in KSP */
 12:   Vec           coarse_vec;
 13:   KSP           coarse_ksp;
 14:   Mat           coarse_phi_B;
 15:   Mat           coarse_phi_D;
 16:   Mat           coarse_psi_B;
 17:   Mat           coarse_psi_D;
 18:   PetscInt      local_primal_size;
 19:   PetscInt      coarse_size;
 20:   PetscInt*     global_primal_indices;
 21:   VecScatter    coarse_loc_to_glob;
 22:   /* Local stuffs needed by BDDC application in KSP */
 23:   Vec           vec1_P;
 24:   Vec           vec1_C;
 25:   Mat           local_auxmat1;
 26:   Mat           local_auxmat2;
 27:   Vec           vec1_R;
 28:   Vec           vec2_R;
 29:   IS            is_R_local;
 30:   VecScatter    R_to_B;
 31:   VecScatter    R_to_D;
 32:   KSP           ksp_R;
 33:   KSP           ksp_D;
 34:   /* Quantities defining constraining details (local) of the preconditioner */
 35:   /* These quantities define the preconditioner itself */
 36:   PetscInt      n_vertices;
 37:   Mat           ConstraintMatrix;
 38:   PetscBool     new_primal_space;
 39:   PetscBool     new_primal_space_local;
 40:   PetscInt      *primal_indices_local_idxs;
 41:   PetscInt      local_primal_size_cc;
 42:   PetscInt      *local_primal_ref_node;
 43:   PetscInt      *local_primal_ref_mult;
 44:   PetscBool     use_change_of_basis;
 45:   PetscBool     use_change_on_faces;
 46:   PetscBool     fake_change;
 47:   Mat           ChangeOfBasisMatrix;
 48:   Mat           user_ChangeOfBasisMatrix;
 49:   PetscBool     change_interior;
 50:   Mat           switch_static_change;
 51:   Vec           work_change;
 52:   Vec           original_rhs;
 53:   Vec           temp_solution;
 54:   Mat           local_mat;
 55:   PetscBool     use_exact_dirichlet_trick;
 56:   PetscBool     exact_dirichlet_trick_app;
 57:   PetscBool     ksp_guess_nonzero;
 58:   PetscBool     rhs_change;
 59:   PetscBool     temp_solution_used;
 60:   /* benign subspace trick */
 61:   PetscBool     benign_saddle_point;
 62:   PetscBool     benign_have_null;
 63:   PetscBool     benign_skip_correction;
 64:   PetscBool     benign_compute_correction;
 65:   Mat           benign_change;
 66:   Mat           benign_original_mat;
 67:   IS            *benign_zerodiag_subs;
 68:   Vec           benign_vec;
 69:   Mat           benign_B0;
 70:   PetscSF       benign_sf;
 71:   PetscScalar   *benign_p0;
 72:   PetscInt      benign_n;
 73:   PetscInt      *benign_p0_lidx;
 74:   PetscInt      *benign_p0_gidx;
 75:   PetscBool     benign_null;
 76:   PetscBool     benign_change_explicit;
 77:   PetscBool     benign_apply_coarse_only;

 79:   /* Some defaults on selecting vertices and constraints*/
 80:   PetscBool     use_local_adj;
 81:   PetscBool     use_vertices;
 82:   PetscBool     use_faces;
 83:   PetscBool     use_edges;

 85:   /* Some customization is possible */
 86:   PetscBool           corner_selection;
 87:   PetscBool           corner_selected;
 88:   PetscBool           recompute_topography;
 89:   PetscBool           graphanalyzed;
 90:   PCBDDCGraph         mat_graph;
 91:   PetscInt            graphmaxcount;
 92:   MatNullSpace        onearnullspace;
 93:   PetscObjectState    *onearnullvecs_state;
 94:   PetscBool           NullSpace_corr[4];
 95:   IS                  user_primal_vertices;
 96:   IS                  user_primal_vertices_local;
 97:   PetscBool           use_nnsp_true;
 98:   PetscBool           use_qr_single;
 99:   PetscBool           user_provided_isfordofs;
100:   PetscInt            n_ISForDofs;
101:   PetscInt            n_ISForDofsLocal;
102:   IS                  *ISForDofs;
103:   IS                  *ISForDofsLocal;
104:   IS                  NeumannBoundaries;
105:   IS                  NeumannBoundariesLocal;
106:   IS                  DirichletBoundaries;
107:   IS                  DirichletBoundariesLocal;
108:   PetscBool           eliminate_dirdofs;
109:   PetscBool           switch_static;
110:   PetscInt            coarsening_ratio;
111:   PetscInt            coarse_adj_red;
112:   PetscInt            current_level;
113:   PetscInt            max_levels;
114:   PetscInt            coarse_eqs_per_proc;
115:   IS                  coarse_subassembling;
116:   PetscBool           use_coarse_estimates;
117:   PetscBool           symmetric_primal;
118:   PetscInt            vertex_size;

120:   /* no-net-flux */
121:   PetscBool compute_nonetflux;
122:   Mat       divudotp;
123:   PetscBool divudotp_trans;
124:   IS        divudotp_vl2l;

126:   /* nedelec */
127:   Mat       discretegradient;
128:   PetscInt  nedorder;
129:   PetscBool conforming;
130:   PetscInt  nedfield;
131:   PetscBool nedglobal;
132:   Mat       nedcG;
133:   IS        nedclocal;

135:   /* local disconnected subdomains */
136:   PetscBool detect_disconnected;
137:   PetscInt  n_local_subs;
138:   IS        *local_subs;

140:   /* scaling */
141:   Vec                 work_scaling;
142:   PetscBool           use_deluxe_scaling;
143:   PCBDDCDeluxeScaling deluxe_ctx;
144:   PetscBool           deluxe_zerorows;
145:   PetscBool           deluxe_singlemat;

147:   /* schur complements on interface's subsets */
148:   PCBDDCSubSchurs sub_schurs;
149:   PetscBool       sub_schurs_rebuild;
150:   PetscBool       sub_schurs_exact_schur;
151:   PetscInt        sub_schurs_layers;
152:   PetscBool       sub_schurs_use_useradj;
153:   PetscBool       computed_rowadj;

155:   /* adaptive selection of constraints */
156:   PetscBool    adaptive_selection;
157:   PetscBool    adaptive_userdefined;
158:   PetscReal    adaptive_threshold[2];
159:   PetscInt     adaptive_nmin;
160:   PetscInt     adaptive_nmax;
161:   PetscInt*    adaptive_constraints_n;
162:   PetscInt*    adaptive_constraints_idxs;
163:   PetscInt*    adaptive_constraints_idxs_ptr;
164:   PetscScalar* adaptive_constraints_data;
165:   PetscInt*    adaptive_constraints_data_ptr;

167:   /* For verbose output of some bddc data structures */
168:   PetscInt    dbg_flag;
169:   PetscViewer dbg_viewer;
170: } PC_BDDC;


173: #endif /* __pcbddc_h */