#include "bsr.h"
Include dependency graph for prec.h:
This graph shows which files directly or indirectly include this file:
Go to the source code of this file.
Classes | |
| struct | prec_t |
| Preconditioner struct. More... | |
Typedefs | |
| typedef struct prec_t | prec_t |
| Preconditioner struct. More... | |
Functions | |
| prec_t * | prec_alloc () |
| Create empty preconditioner object. More... | |
| void | prec_free (prec_t *P) |
| Delete preconditioner object. More... | |
| void | prec_init (prec_t *P, bsr_matrix const *A) |
| Initialize preconditioner object. More... | |
| int | prec_analyze (bsr_matrix *M, int(*offsets)[3]) |
| Identify off-diagonal ILU0 targets. More... | |
| void | prec_dilu_factorize (prec_t *P, bsr_matrix *A) |
| DILU factorization. More... | |
| void | prec_ilu0_factorize (prec_t *P, bsr_matrix *A) |
| ILU0 factorization. More... | |
| void | prec_mapply3c (prec_t *P, double *x) |
| Preconditioner application in mixed-precision. More... | |
| void | prec_dapply3c (prec_t *P, double *x) |
| Preconditioner applicationin double-precision. More... | |
| void | prec_downcast (prec_t *P) |
| Make single-precision copy of double-precision values. More... | |
| void | prec_info (prec_t *P) |
| Display preconditioner statistics. More... | |
Typedef Documentation
◆ prec_t
Function Documentation
◆ prec_alloc()
| prec_t * prec_alloc | ( | ) |
Create empty preconditioner object.
- Returns
- Pointer to preconditioner object.
◆ prec_analyze()
| int prec_analyze | ( | bsr_matrix * | M, |
| int(*) | offsets[3] | ||
| ) |
Identify off-diagonal ILU0 targets.
- Parameters
-
M Pointer to bsr matrix. offsets Pointer to offsets identifying off-diagonal targets.
- Returns
- number of offdiagonal targets.
◆ prec_dapply3c()
| void prec_dapply3c | ( | prec_t * | P, |
| double * | x | ||
| ) |
Preconditioner applicationin double-precision.
- Note
- Algorithm onsists of lower and upper triangular solves
- Parameters
-
P Pointer to preconditioner object. @apram x Pointer to input/output vector
◆ prec_dilu_factorize()
| void prec_dilu_factorize | ( | prec_t * | P, |
| bsr_matrix * | A | ||
| ) |
DILU factorization.
- Parameters
-
P Pointer preconditioner object. A Pointer to bsr matrix.
◆ prec_downcast()
| void prec_downcast | ( | prec_t * | P | ) |
Make single-precision copy of double-precision values.
- Parameters
-
P Pointer to preconditioner object.
◆ prec_free()
| void prec_free | ( | prec_t * | P | ) |
Delete preconditioner object.
- Parameters
-
A Pointer to preconditioner object.
◆ prec_ilu0_factorize()
| void prec_ilu0_factorize | ( | prec_t * | P, |
| bsr_matrix * | A | ||
| ) |
ILU0 factorization.
- Parameters
-
P Pointer preconditioner object. A Pointer to bsr matrix.
◆ prec_info()
| void prec_info | ( | prec_t * | P | ) |
Display preconditioner statistics.
- Parameters
-
P Pointer to preconditioner object.
◆ prec_init()
| void prec_init | ( | prec_t * | P, |
| bsr_matrix const * | A | ||
| ) |
Initialize preconditioner object.
- Parameters
-
P Pointer preconditioner object. A Pointer to bsr matrix.
◆ prec_mapply3c()
| void prec_mapply3c | ( | prec_t * | P, |
| double * | x | ||
| ) |
Preconditioner application in mixed-precision.
- Note
- Algorithm onsists of lower and upper triangular solves
- Parameters
-
P Pointer to preconditioner object. @apram x Pointer to input/output vector