1 #ifndef __CS_SLES_IT_PRIV_H__
2 #define __CS_SLES_IT_PRIV_H__
90 #if !defined(HUGE_VAL)
91 #define HUGE_VAL 1.E+12
129 typedef struct _cs_sles_it_setup_t {
131 double initial_residue;
142 } cs_sles_it_setup_t;
147 typedef struct _cs_sles_it_add_t {
156 struct _cs_sles_it_t {
165 bool ignore_convergence;
169 int restart_interval;
174 cs_sles_it_solve_t *solve;
186 unsigned n_iterations_last;
188 unsigned n_iterations_min;
190 unsigned n_iterations_max;
192 unsigned long long n_iterations_tot;
208 # if defined(HAVE_MPI)
210 MPI_Comm caller_comm;
216 const struct _cs_sles_it_t *shared;
220 cs_sles_it_add_t *add_data;
222 cs_sles_it_setup_t *setup_data;
228 int fallback_n_max_iter;
239 struct _cs_sles_it_convergence_t {
245 unsigned n_iterations;
246 unsigned n_iterations_max;
275 double s =
cs_dot(c->setup_data->n_rows, x, y);
277 #if defined(HAVE_MPI)
279 if (c->comm != MPI_COMM_NULL) {
281 MPI_Allreduce(&s, &_sum, 1, MPI_DOUBLE, MPI_SUM, c->comm);
309 #if defined(HAVE_MPI)
311 if (c->comm != MPI_COMM_NULL) {
313 MPI_Allreduce(&s, &_sum, 1, MPI_DOUBLE, MPI_SUM, c->comm);
344 #if defined(HAVE_MPI)
346 if (c->comm != MPI_COMM_NULL) {
348 MPI_Allreduce(s, _sum, 2, MPI_DOUBLE, MPI_SUM, c->comm);
383 #if defined(HAVE_MPI)
385 if (c->comm != MPI_COMM_NULL) {
387 MPI_Allreduce(s, _sum, 2, MPI_DOUBLE, MPI_SUM, c->comm);
424 #if defined(HAVE_MPI)
426 if (c->comm != MPI_COMM_NULL) {
429 MPI_Allreduce(s, _sum, 3, MPI_DOUBLE, MPI_SUM, c->comm);
472 #if defined(HAVE_MPI)
474 if (c->comm != MPI_COMM_NULL) {
476 MPI_Allreduce(s, _sum, 5, MPI_DOUBLE, MPI_SUM, c->comm);
477 memcpy(s, _sum, 5*
sizeof(
double));
508 aux[0] = (c[0] -
b[0]);
509 aux[1] = (c[1] -
b[1]) - aux[0]*mat[3];
510 aux[2] = (c[2] -
b[2]) - aux[0]*mat[6] - aux[1]*mat[7];
512 x[2] = aux[2]/mat[8];
513 x[1] = (aux[1] - mat[5]*x[2])/mat[4];
514 x[0] = (aux[0] - mat[1]*x[1] - mat[2]*x[2])/mat[0];
536 assert(db_size <= DB_SIZE_MAX);
540 for (
int ii = 0; ii < db_size; ii++) {
541 aux[ii] = (c[ii] -
b[ii]);
542 for (
int jj = 0; jj < ii; jj++) {
543 aux[ii] -= aux[jj]*mat[ii*db_size + jj];
548 for (
int ii = db_size - 1; ii >= 0; ii-=1) {
550 for (
int jj = db_size - 1; jj > ii; jj-=1) {
551 x[ii] -= x[jj]*mat[ii*db_size + jj];
553 x[ii] /= mat[ii*(db_size + 1)];
574 assert(db_size <= DB_SIZE_MAX);
577 for (
int ii = 0; ii < db_size; ii++) {
579 for (
int jj = 0; jj < ii; jj++)
580 x[ii] -= x[jj]*mat[ii*db_size + jj];
584 for (
int ii = db_size - 1; ii >= 0; ii--) {
585 for (
int jj = db_size - 1; jj > ii; jj--)
586 x[ii] -= x[jj]*mat[ii*db_size + jj];
587 x[ii] /= mat[ii*(db_size + 1)];
613 const char *solver_name,
641 bool block_nn_inverse);
double cs_dot(cs_lnum_t n, const cs_real_t *x, const cs_real_t *y)
Return the dot product of 2 vectors: x.y.
Definition: cs_blas.c:1465
void cs_dot_xx_yy_xy_xz_yz(cs_lnum_t n, const cs_real_t *restrict x, const cs_real_t *restrict y, const cs_real_t *restrict z, double *xx, double *yy, double *xy, double *xz, double *yz)
Return 5 dot products of 3 vectors: x.x, y.y, x.y, x.z, and y.z.
Definition: cs_blas.c:1654
double cs_dot_xx(cs_lnum_t n, const cs_real_t *x)
Return dot products of a vector with itself: x.x.
Definition: cs_blas.c:1486
void cs_dot_xy_yz(cs_lnum_t n, const cs_real_t *restrict x, const cs_real_t *restrict y, const cs_real_t *restrict z, double *xy, double *yz)
Return 2 dot products of 3 vectors: x.y, and y.z.
Definition: cs_blas.c:1593
void cs_dot_xx_xy_yz(cs_lnum_t n, const cs_real_t *restrict x, const cs_real_t *restrict y, const cs_real_t *restrict z, double *xx, double *xy, double *yz)
Return 3 dot products of 3 vectors: x.x, x.y, and y.z.
Definition: cs_blas.c:1622
void cs_dot_xx_xy(cs_lnum_t n, const cs_real_t *restrict x, const cs_real_t *restrict y, double *xx, double *xy)
Return 2 dot products of 2 vectors: x.x, and x.y.
Definition: cs_blas.c:1566
#define restrict
Definition: cs_defs.h:139
#define BEGIN_C_DECLS
Definition: cs_defs.h:509
double cs_real_t
Floating-point value.
Definition: cs_defs.h:319
#define END_C_DECLS
Definition: cs_defs.h:510
int cs_lnum_t
local mesh entity id
Definition: cs_defs.h:313
struct _cs_matrix_t cs_matrix_t
Definition: cs_matrix.h:110
cs_sles_convergence_state_t
Definition: cs_sles.h:56
struct _cs_sles_it_t cs_sles_it_t
Definition: cs_sles_it.h:86
struct _cs_sles_it_convergence_t cs_sles_it_convergence_t
Definition: cs_sles_it.h:90
cs_sles_it_type_t
Definition: cs_sles_it.h:55
cs_sles_pc_state_t() cs_sles_pc_apply_t(void *context, const cs_real_t *x_in, cs_real_t *x_out)
Function pointer for application of a preconditioner.
Definition: cs_sles_pc.h:145
struct _cs_sles_pc_t cs_sles_pc_t
Definition: cs_sles_pc.h:66
struct _cs_time_plot_t cs_time_plot_t
Definition: cs_time_plot.h:48
double precision, save a
Definition: cs_fuel_incl.f90:148
double precision, save b
Definition: cs_fuel_incl.f90:148
Definition: cs_timer.h:55