Date: 2026-03-31T05:46:34+00:00

Actual source code: lcl.h

      1: #pragma once

      3: #include <petsc/private/taoimpl.h>
      4: #include <petscis.h>
      5: #define LCL_FORWARD1 0
      6: #define LCL_ADJOINT1 1
      7: #define LCL_FORWARD2 2
      8: #define LCL_ADJOINT2 3

     10: typedef struct {
     11:   Mat M;    /* Quasi-newton hessian matrix */
     12:   Vec dbar; /* Reduced gradient */
     13:   Vec GL;
     14:   Vec GAugL;
     15:   Vec GL_U;     /* Gradient of lagrangian */
     16:   Vec GL_V;     /* Gradient of lagrangian */
     17:   Vec GAugL_U;  /* Augmented lagrangian gradient */
     18:   Vec GAugL_V;  /* Augmented lagrangian gradient */
     19:   Vec GL_U0;    /* Gradient of lagrangian */
     20:   Vec GL_V0;    /* Gradient of lagrangian */
     21:   Vec GAugL_U0; /* Augmented lagrangian gradient */
     22:   Vec GAugL_V0; /* Augmented lagrangian gradient */

     24:   IS         UIS; /* Index set to state */
     25:   IS         UID; /* Index set to design */
     26:   IS         UIM; /* Full index set to all constraints */
     27:   VecScatter state_scatter;
     28:   VecScatter design_scatter;

     30:   Vec U;  /* State variable */
     31:   Vec V;  /* Design variable */
     32:   Vec U0; /* State variable */
     33:   Vec V0; /* Design variable */
     34:   Vec V1; /* Design variable */

     36:   Vec DU; /* State step */
     37:   Vec DV; /* Design step */
     38:   Vec DL; /* Multipliers step */

     40:   Vec GU;  /* Gradient wrt U */
     41:   Vec GV;  /* Gradient wrt V */
     42:   Vec GU0; /* Gradient wrt U */
     43:   Vec GV0; /* Gradient wrt V */

     45:   Vec W; /* work vector */
     46:   Vec X0;
     47:   Vec G0;
     48:   Vec WU; /* state work vector */
     49:   Vec WV; /* design work vector */
     50:   Vec r;
     51:   Vec s;
     52:   Vec g1, g2;
     53:   Vec con1;

     55:   PetscInt m; /* number of constraints */
     56:   PetscInt n; /* number of variables */

     58:   Mat jacobian_state0;     /* Jacobian wrt U */
     59:   Mat jacobian_state0_pre; /* matrix wrt U used to compute the preconditioner */
     60:   Mat jacobian_design0;    /* Jacobian wrt V */
     61:   Mat jacobian_state_inv0; /* Inverse of Jacobian wrt U */
     62:   Mat R;

     64:   Vec lambda;  /* Lagrange Multiplier */
     65:   Vec lambda0; /* Lagrange Multiplier */
     66:   Vec lambda1; /* Lagrange Multiplier */

     68:   Vec       WL;  /* Work vector */
     69:   PetscReal rho; /* Penalty parameter */
     70:   PetscReal rho0;
     71:   PetscReal rhomax;
     72:   PetscReal eps1, eps2;
     73:   PetscReal aug, aug0, lgn, lgn0;
     74:   PetscInt  subset_type;
     75:   PetscInt  solve_type;
     76:   PetscBool recompute_jacobian_flag;
     77:   PetscInt  phase2_niter;
     78:   PetscBool verbose;
     79:   PetscReal tau[4];

     81: } TAO_LCL;