cs_at_opt_interp.h

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#ifndef CS_AT_OPT_INTERP_H
#define CS_AT_OPT_INTERP_H
 
/*============================================================================
 * Optimal Interpolation.
 *============================================================================*/
 
/*
  This file is part of code_saturne, a general-purpose CFD tool.
 
  Copyright (C) 1998-2026 EDF S.A.
 
  This program is free software; you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free Software
  Foundation; either version 2 of the License, or (at your option) any later
  version.
 
  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  details.
 
  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
  Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
 
/*----------------------------------------------------------------------------*/
 
#if defined(HAVE_MPI)
#include <mpi.h>
#endif
 
/*----------------------------------------------------------------------------
 *  Local headers
 *----------------------------------------------------------------------------*/
 
#include "base/cs_defs.h"
 
#include "base/cs_field.h"
#include "base/cs_measures_util.h"
 
/*=============================================================================
 * Macro definitions
 *============================================================================*/
 
/*============================================================================
 * Type definitions
 *============================================================================*/
 
typedef enum {
 
  CS_AT_OPT_INTERP_P0,    /* Interpolation from cell containing the observation */
  CS_AT_OPT_INTERP_P1     /* Interpolation from (partial) extended neighbourhood */
 
} cs_at_opt_interp_type_t;
 
typedef struct _cs_at_opt_interp_t {
 
  const char              *name;                /* Name */
  int                      id;                  /* Id */
  int                      ig_id;
  cs_real_t               *obs_cov;
  bool                     obs_cov_is_diag;
  cs_at_opt_interp_type_t  interp_type;
  cs_real_t               *model_to_obs_proj;
  cs_lnum_t               *model_to_obs_proj_idx;
  cs_lnum_t               *model_to_obs_proj_c_ids;
  cs_real_t               *b_proj;
  cs_real_t                ir[2];
  cs_real_t               *relax;
  int                      nb_times;
  int                     *measures_idx;
  cs_real_t               *times;
  cs_real_t               *times_read;
  int                     *active_time;
  cs_real_t               *time_weights;
  cs_real_t               *time_window;
  int                      n_log_data;
  int                      steady;
  int                      frequency;
  int                      type_nudging;
 
} cs_at_opt_interp_t;
 
/*============================================================================
 * Global variables
 *============================================================================*/
 
/*=============================================================================
 * Public function prototypes
 *============================================================================*/
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
cs_at_opt_interp_t *
cs_at_opt_interp_create(const char   *name);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
cs_at_opt_interp_t  *
cs_at_opt_interp_by_id(int  id);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
cs_at_opt_interp_t  *
cs_at_opt_interp_by_name(const char  *name);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interps_destroy(void);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interp_read_file(char const           filename[50],
                           cs_measures_set_t   *ms,
                           cs_at_opt_interp_t  *oi,
                           const int            f_dim);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
int
cs_at_opt_interp_is_p1_proj_needed(void);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interp_map_values(cs_at_opt_interp_t *oi,
                            cs_measures_set_t  *ms);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interp_obs_operator(cs_measures_set_t  *ms,
                              cs_at_opt_interp_t *oi,
                              cs_interpol_grid_t *ig);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interp_project_model_covariance(cs_measures_set_t  *ms,
                                          cs_at_opt_interp_t *oi);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
int *
cs_at_opt_interp_get_active_obs(cs_measures_set_t  *ms,
                                cs_at_opt_interp_t *oi,
                                cs_field_t         *f_oia,
                                bool              **inverse,
                                int              ***ao_idx);
 
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
 
void
cs_at_opt_interp_compute_analysis(cs_field_t         *f,
                                  cs_at_opt_interp_t *oi,
                                  cs_field_t         *f_oia,
                                  int                 n_active_obs,
                                  int                *ao_idx,
                                  bool                inverse,
                                  int                 mc_id);
 
/*----------------------------------------------------------------------------*/
 
#endif /* CS_AT_OPT_INTERP_H */