Utility functions used with laplacian.c. More...
#include "laplacian.h"
Include dependency graph for laplacian_utils.c:
Detailed Description
Utility functions used with laplacian.c.
Functions | |
| void | init_masa (pstruct *model) |
| Initializes MASA library and applies right-hand side forcing function at all solution points. More... | |
| void | enforce_dirichlet_bc (const int row_id, const int col_id, const double value, pstruct *model) |
| Enforces a Dirichlet BC in the model system by nullifying all but the diagonal entry for the row corresponding to a given solution value. The model RHS forcing function is set to the desired Dirchlet value and the diagonal is set to unity to enforce the desired constraint. More... | |
| void | print_matrix (pstruct *model) |
| Prints model system matrix and right-hand side vector to stdout. More... | |
| void | assemble_matrix (const int fd_method, pstruct *model) |
| Assembles system matrix entries using a finite-difference approximation. The fd_method parameter controls the choice of underlying FD stencil. More... | |
| void | apply_bcs (pstruct *model) |
| void | solve_gauss (pstruct *model) |
| int | converged (double *a, double *b, double eps, int n, double *diff) |
| void | solve_cg (pstruct *model) |
| double | compute_l2_error (pstruct *model) |
| void | compute_error (pstruct *model) |
Function Documentation
| assemble_matrix | ( | const int | fd_method, |
| pstruct * | model | ||
| ) |
Assembles system matrix entries using a finite-difference approximation. The fd_method parameter controls the choice of underlying FD stencil.
- Parameters
-
fd_method Desired finite-difference stencil model Pointer to the primary model data-structure
| enforce_dirichlet_bc | ( | const int | row_id, |
| const int | col_id, | ||
| const double | value, | ||
| pstruct * | model | ||
| ) |
Enforces a Dirichlet BC in the model system by nullifying all but the diagonal entry for the row corresponding to a given solution value. The model RHS forcing function is set to the desired Dirchlet value and the diagonal is set to unity to enforce the desired constraint.
- Parameters
-
row_id Row index to enforce the constraint col_id Column index to enforce the constraint value Desired solution value model Pointer to the primary model data-structure
| init_masa | ( | pstruct * | model | ) |
Initializes MASA library and applies right-hand side forcing function at all solution points.
- Parameters
-
model Pointer to the primary model data-structure
| print_matrix | ( | pstruct * | model | ) |
Prints model system matrix and right-hand side vector to stdout.
- Parameters
-
model Pointer to the primary model data-structure