ascend/integrator/aww.c

/*  ASCEND modelling environment
    Copyright (C) 2006 Carnegie Mellon University

    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, 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., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.
*//** @file
    C-code implementation of Art Westerberg's DAE integrator
*//*
    by John Pye, Dec 2006.
*/

#include <utilities/config.h>
#include <utilities/ascConfig.h>
#include <utilities/ascPanic.h>
#include "aww.h"

const IntegratorInternals integrator_aww_internals = {
    integrator_aww_create
    ,integrator_aww_params_default
    ,integrator_aww_analyse
    ,integrator_aww_solve
    ,integrator_aww_free
    ,INTEG_AWW
    ,"AWW"
};

typedef struct{
    unsigned nothing;
}  IntegratorAWWData;

/*-------------------------------------------------------------
  PARAMETERS FOR AWW INTEGRATOR
*/

enum aww_parameters{
    AWW_PARAM_METHOD
    ,AWW_PARAM_RTOL
    ,AWW_PARAMS_SIZE
};

enum aww_methods{
    AWW_BDF
    ,AWW_AM
};
    
/**
    Here the full set of parameters is defined, along with upper/lower bounds,
    etc. The values are stuck into the blsys->params structure.

    @return 0 on success
*/
int integrator_aww_params_default(IntegratorSystem *blsys){
    asc_assert(blsys!=NULL);
    asc_assert(blsys->engine==INTEG_AWW);
    slv_parameters_t *p;
    p = &(blsys->params);

    slv_destroy_parms(p);

    if(p->parms==NULL){
        CONSOLE_DEBUG("params NULL");
        p->parms = ASC_NEW_ARRAY(struct slv_parameter, AWW_PARAMS_SIZE);
        if(p->parms==NULL)return -1;
        p->dynamic_parms = 1;
    }else{
        CONSOLE_DEBUG("params not NULL");
    }

    /* reset the number of parameters to zero so that we can check it at the end */
    p->num_parms = 0;

    slv_param_char(p,AWW_PARAM_METHOD
            ,(SlvParameterInitChar){{"method"
            ,"Stepping method",1
            ,"See Art's notes, sec. 15.2"
        }, "BDF"}, (char *[]){"BDF","AM",NULL}
    );

    slv_param_real(p,AWW_PARAM_RTOL
            ,(SlvParameterInitReal){{"rtol"
            ,"Scalar relative error tolerance",1
            ,"Value of the scalar relative error tolerance."
        }, 1e-4, 0, DBL_MAX }
    );

    asc_assert(p->num_parms == AWW_PARAMS_SIZE);

    CONSOLE_DEBUG("Created %d params", p->num_parms);

    return 0;
}

void integrator_aww_create(IntegratorSystem *blsys){
    CONSOLE_DEBUG("ALLOCATING AWW ENGINE DATA");
    IntegratorAWWData *enginedata;
    enginedata = ASC_NEW(IntegratorAWWData);
    enginedata->nothing = 0;
    blsys->enginedata = (void *)enginedata;
    integrator_aww_params_default(blsys);
}

void integrator_aww_free(void *enginedata){
    CONSOLE_DEBUG("DELETING AWW ENGINE DATA");
    IntegratorAWWData *d = (IntegratorAWWData *)enginedata;
    ASC_FREE(d);
}

/** return 1 on success */
int integrator_aww_analyse(IntegratorSystem *blsys){
    return 0;
}

/** return 0 on success */
int integrator_aww_solve(IntegratorSystem *blsys
        , unsigned long start_index, unsigned long finish_index
){
    double initstep, maxstep, rtol;
    unsigned maxsubsteps;
    const char *methodname;

    // solve initial point

    // run valuesForInit
    // run specifyForInit
    // solve with QRSlv
    // if not converged throw error

    // 'DELETE SYSTEM'
    // run valuesForStep
    // run specifyForStep
    
    initstep = integrator_get_stepzero(blsys);
    maxstep = integrator_get_maxstep(blsys);
    maxsubsteps = integrator_get_maxsubsteps(blsys);
    rtol = SLV_PARAM_REAL(&(blsys->params),AWW_PARAM_RTOL);

    methodname = SLV_PARAM_CHAR(&(blsys->params),AWW_PARAM_METHOD);
    CONSOLE_DEBUG("ASSIGNING STEPPING METHOD '%s'",methodname);
    
    enum aww_methods method;
    if(strcmp(methodname,"BDF")==0)method = AWW_BDF;
    else if(strcmp(methodname,"AM")==0)method = AWW_AM;
    else{
        ERROR_REPORTER_HERE(ASC_USER_ERROR,"Invalid method name '%s'",methodname);
    }

    /* initialise the integrator reporter */
    integrator_output_init(blsys);

    // while not too many solver calls {
    //    capture plotting points
    //    do something with polynomials
    //    for(i=0; i<= poly_oder; ++i){
    //      if(!in the final step){
    //          if(!have hit stopping configtion) UN 'stepX'
    //          SOLVE with QRSlv
    //          if(!converged)abort 'failed to convert
    //      }
    //      if(in the final step)abort 'STOP reached'
    //      RUN setStopConditions
    //      retrieve status of stop confitions
    //      retureve status of 'last step'
    //    }
    //    compute maximum steps for each variable
    // }

    ERROR_REPORTER_HERE(ASC_PROG_ERR,"Not implemented");
    return 1;
}

1	johnpye	970	/* ASCEND modelling environment
2			Copyright (C) 2006 Carnegie Mellon University
3
4			This program is free software; you can redistribute it and/or modify
5			it under the terms of the GNU General Public License as published by
6			the Free Software Foundation; either version 2, or (at your option)
7			any later version.
8
9			This program is distributed in the hope that it will be useful,
10			but WITHOUT ANY WARRANTY; without even the implied warranty of
11			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12			GNU General Public License for more details.
13
14			You should have received a copy of the GNU General Public License
15			along with this program; if not, write to the Free Software
16			Foundation, Inc., 59 Temple Place - Suite 330,
17			Boston, MA 02111-1307, USA.
18			//* @file
19			C-code implementation of Art Westerberg's DAE integrator
20			//
21			by John Pye, Dec 2006.
22			*/
23
24			#include <utilities/config.h>
25			#include <utilities/ascConfig.h>
26			#include <utilities/ascPanic.h>
27	johnpye	977	#include "aww.h"
28	johnpye	970
29	johnpye	977	const IntegratorInternals integrator_aww_internals = {
30			integrator_aww_create
31			,integrator_aww_params_default
32			,integrator_aww_analyse
33			,integrator_aww_solve
34			,integrator_aww_free
35			,INTEG_AWW
36			,"AWW"
37			};
38
39	johnpye	970	typedef struct{
40			unsigned nothing;
41			} IntegratorAWWData;
42
43			/*-------------------------------------------------------------
44			PARAMETERS FOR AWW INTEGRATOR
45			*/
46
47			enum aww_parameters{
48			AWW_PARAM_METHOD
49			,AWW_PARAM_RTOL
50			,AWW_PARAMS_SIZE
51			};
52
53			enum aww_methods{
54			AWW_BDF
55			,AWW_AM
56			};
57
58			/**
59			Here the full set of parameters is defined, along with upper/lower bounds,
60			etc. The values are stuck into the blsys->params structure.
61
62			@return 0 on success
63			*/
64			int integrator_aww_params_default(IntegratorSystem *blsys){
65			asc_assert(blsys!=NULL);
66			asc_assert(blsys->engine==INTEG_AWW);
67			slv_parameters_t *p;
68			p = &(blsys->params);
69
70			slv_destroy_parms(p);
71
72			if(p->parms==NULL){
73			CONSOLE_DEBUG("params NULL");
74			p->parms = ASC_NEW_ARRAY(struct slv_parameter, AWW_PARAMS_SIZE);
75			if(p->parms==NULL)return -1;
76			p->dynamic_parms = 1;
77			}else{
78			CONSOLE_DEBUG("params not NULL");
79			}
80
81			/* reset the number of parameters to zero so that we can check it at the end */
82			p->num_parms = 0;
83
84			slv_param_char(p,AWW_PARAM_METHOD
85			,(SlvParameterInitChar){{"method"
86			,"Stepping method",1
87			,"See Art's notes, sec. 15.2"
88			}, "BDF"}, (char *[]){"BDF","AM",NULL}
89			);
90
91			slv_param_real(p,AWW_PARAM_RTOL
92			,(SlvParameterInitReal){{"rtol"
93			,"Scalar relative error tolerance",1
94			,"Value of the scalar relative error tolerance."
95			}, 1e-4, 0, DBL_MAX }
96			);
97
98			asc_assert(p->num_parms == AWW_PARAMS_SIZE);
99
100			CONSOLE_DEBUG("Created %d params", p->num_parms);
101
102			return 0;
103			}
104
105			void integrator_aww_create(IntegratorSystem *blsys){
106			CONSOLE_DEBUG("ALLOCATING AWW ENGINE DATA");
107			IntegratorAWWData *enginedata;
108			enginedata = ASC_NEW(IntegratorAWWData);
109			enginedata->nothing = 0;
110			blsys->enginedata = (void *)enginedata;
111			integrator_aww_params_default(blsys);
112			}
113
114			void integrator_aww_free(void *enginedata){
115			CONSOLE_DEBUG("DELETING AWW ENGINE DATA");
116			IntegratorAWWData d = (IntegratorAWWData )enginedata;
117			ASC_FREE(d);
118			}
119
120			/** return 1 on success */
121			int integrator_aww_analyse(IntegratorSystem *blsys){
122			return 0;
123			}
124
125	johnpye	1049	/** return 0 on success */
126	johnpye	970	int integrator_aww_solve(IntegratorSystem *blsys
127			, unsigned long start_index, unsigned long finish_index
128			){
129			double initstep, maxstep, rtol;
130			unsigned maxsubsteps;
131			const char *methodname;
132
133			// solve initial point
134
135			// run valuesForInit
136			// run specifyForInit
137			// solve with QRSlv
138			// if not converged throw error
139
140			// 'DELETE SYSTEM'
141			// run valuesForStep
142			// run specifyForStep
143
144			initstep = integrator_get_stepzero(blsys);
145			maxstep = integrator_get_maxstep(blsys);
146			maxsubsteps = integrator_get_maxsubsteps(blsys);
147			rtol = SLV_PARAM_REAL(&(blsys->params),AWW_PARAM_RTOL);
148
149			methodname = SLV_PARAM_CHAR(&(blsys->params),AWW_PARAM_METHOD);
150			CONSOLE_DEBUG("ASSIGNING STEPPING METHOD '%s'",methodname);
151
152			enum aww_methods method;
153			if(strcmp(methodname,"BDF")==0)method = AWW_BDF;
154			else if(strcmp(methodname,"AM")==0)method = AWW_AM;
155			else{
156			ERROR_REPORTER_HERE(ASC_USER_ERROR,"Invalid method name '%s'",methodname);
157			}
158
159			/* initialise the integrator reporter */
160			integrator_output_init(blsys);
161
162			// while not too many solver calls {
163			// capture plotting points
164			// do something with polynomials
165			// for(i=0; i<= poly_oder; ++i){
166			// if(!in the final step){
167			// if(!have hit stopping configtion) UN 'stepX'
168			// SOLVE with QRSlv
169			// if(!converged)abort 'failed to convert
170			// }
171			// if(in the final step)abort 'STOP reached'
172			// RUN setStopConditions
173			// retrieve status of stop confitions
174			// retureve status of 'last step'
175			// }
176			// compute maximum steps for each variable
177			// }
178
179			ERROR_REPORTER_HERE(ASC_PROG_ERR,"Not implemented");
180	johnpye	1049	return 1;
181	johnpye	970	}
182