nopenpilot/third_party/acados/include/acados/sim/sim_common.h

222 lines
6.7 KiB
C

/*
* Copyright 2019 Gianluca Frison, Dimitris Kouzoupis, Robin Verschueren,
* Andrea Zanelli, Niels van Duijkeren, Jonathan Frey, Tommaso Sartor,
* Branimir Novoselnik, Rien Quirynen, Rezart Qelibari, Dang Doan,
* Jonas Koenemann, Yutao Chen, Tobias Schöls, Jonas Schlagenhauf, Moritz Diehl
*
* This file is part of acados.
*
* The 2-Clause BSD License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.;
*/
#ifndef ACADOS_SIM_SIM_COMMON_H_
#define ACADOS_SIM_SIM_COMMON_H_
#include <stdbool.h>
#include "acados/sim/sim_collocation_utils.h"
#include "acados/utils/timing.h"
#include "acados/utils/types.h"
#include "acados/utils/external_function_generic.h"
// maximum number of integration stages
#define NS_MAX 15
typedef enum
{
// ERK and LIFTED_ERK
EXPL_ODE_FUN,
EXPL_ODE_HES, // wrt x and u ???
EXPL_VDE_FOR,
EXPL_VDE_ADJ,
// IRK
IMPL_ODE_FUN,
IMPL_ODE_FUN_JAC_X_XDOT,
IMPL_ODE_JAC_X_XDOT_U,
IMPL_ODE_FUN_JAC_X_XDOT_U,
IMPL_ODE_HESS,
// gnsf
PHI_FUN,
PHI_FUN_JAC_Y,
PHI_JAC_Y_UHAT,
LO_FUN,
GET_GNSF_MATRICES
} sim_function_t;
typedef struct
{
void *dims;
double *x; // x[NX] - initial state value for simulation
double *u; // u[NU] - control - constant over simulation time
double *S_forw; // forward seed [Sx, Su]
double *S_adj; // backward seed
bool identity_seed; // indicating if S_forw = [eye(nx), zeros(nx x nu)]
void *model;
double T; // simulation time
} sim_in;
typedef struct
{
double CPUtime; // in seconds
double LAtime; // in seconds
double ADtime; // in seconds
} sim_info;
typedef struct
{
double *xn; // xn[NX]
double *S_forw; // S_forw[NX*(NX+NU)]
double *S_adj; //
double *S_hess; //
double *zn; // z - algebraic variables - reported at start of simulation interval
double *S_algebraic; // sensitivities of reported value of algebraic variables w.r.t.
// initial stat & control (x_n,u)
double *grad; // gradient correction
sim_info *info;
} sim_out;
typedef struct
{
int ns; // number of integration stages
int num_steps;
int num_forw_sens;
int tableau_size; // check that is consistent with ns
// only update when butcher tableau is changed
// kind of private -> no setter!
double *A_mat;
double *c_vec;
double *b_vec;
bool sens_forw;
bool sens_adj;
bool sens_hess;
bool output_z; // 1 -- if zn should be computed
bool sens_algebraic; // 1 -- if S_algebraic should be computed
bool exact_z_output; // 1 -- if z, S_algebraic should be computed exactly, extra Newton iterations
// for explicit integrators: newton_iter == 0 && scheme == NULL
// && jac_reuse=false
int newton_iter;
bool jac_reuse;
Newton_scheme *scheme;
// workspace
void *work;
} sim_opts;
typedef struct
{
int (*evaluate)(void *config_, sim_in *in, sim_out *out, void *opts, void *mem, void *work);
int (*precompute)(void *config_, sim_in *in, sim_out *out, void *opts, void *mem, void *work);
// opts
acados_size_t (*opts_calculate_size)(void *config_, void *dims);
void *(*opts_assign)(void *config_, void *dims, void *raw_memory);
void (*opts_initialize_default)(void *config_, void *dims, void *opts);
void (*opts_update)(void *config_, void *dims, void *opts);
void (*opts_set)(void *config_, void *opts_, const char *field, void *value);
void (*opts_get)(void *config_, void *opts_, const char *field, void *value);
// mem
acados_size_t (*memory_calculate_size)(void *config, void *dims, void *opts);
void *(*memory_assign)(void *config, void *dims, void *opts, void *raw_memory);
int (*memory_set)(void *config, void *dims, void *mem, const char *field, void *value);
int (*memory_set_to_zero)(void *config, void *dims, void *opts, void *mem, const char *field);
void (*memory_get)(void *config, void *dims, void *mem, const char *field, void *value);
// work
acados_size_t (*workspace_calculate_size)(void *config, void *dims, void *opts);
// model
acados_size_t (*model_calculate_size)(void *config, void *dims);
void *(*model_assign)(void *config, void *dims, void *raw_memory);
int (*model_set)(void *model, const char *field, void *value);
// config
void (*config_initialize_default)(void *config);
// dims
acados_size_t (*dims_calculate_size)();
void *(*dims_assign)(void *config, void *raw_memory);
void (*dims_set)(void *config, void *dims, const char *field, const int *value);
void (*dims_get)(void *config, void *dims, const char *field, int *value);
} sim_config;
/* config */
//
acados_size_t sim_config_calculate_size();
//
sim_config *sim_config_assign(void *raw_memory);
/* in */
//
acados_size_t sim_in_calculate_size(void *config, void *dims);
//
sim_in *sim_in_assign(void *config, void *dims, void *raw_memory);
//
int sim_in_set_(void *config_, void *dims_, sim_in *in, const char *field, void *value);
/* out */
//
acados_size_t sim_out_calculate_size(void *config, void *dims);
//
sim_out *sim_out_assign(void *config, void *dims, void *raw_memory);
//
int sim_out_get_(void *config, void *dims, sim_out *out, const char *field, void *value);
/* opts */
//
void sim_opts_set_(sim_opts *opts, const char *field, void *value);
//
void sim_opts_get_(sim_config *config, sim_opts *opts, const char *field, void *value);
#endif // ACADOS_SIM_SIM_COMMON_H_