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1 REQUIRE "basemodel.a4l";
2 (* => basemodel.a4l *)
3 PROVIDE "ivpsystem.a4l";
4 PROVIDE "system.a4l";
5
6 (*
7 * ivpsystem.a4l
8 * by Benjamin A. Allan, Jennifer Stokes
9 * Part of the ASCEND Library
10 * $Date: 1998/06/17 19:09:35 $
11 * $Revision: 1.7 $
12 * $Author: mthomas $
13 * $Source: /afs/cs.cmu.edu/project/ascend/Repository/models/ivpsystem.a4l,v $
14 *
15 * This file is part of the ASCEND Modeling Library.
16 *
17 * Copyright (C) 1994 - 1998 Carnegie Mellon University
18 *
19 * The ASCEND Modeling Library is free software; you can redistribute
20 * it and/or modify it under the terms of the GNU General Public
21 * License as published by the Free Software Foundation; either
22 * version 2 of the License, or (at your option) any later version.
23 *
24 * The ASCEND Modeling Library is distributed in hope that it
25 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
26 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
27 * See the GNU General Public License for more details.
28 *
29 * You should have received a copy of the GNU General Public License
30 * along with the program; if not, write to the Free Software
31 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139 USA. Check
32 * the file named COPYING.
33 *)
34
35 (*============================================================================*
36
37 I V P S Y S T E M . A 4 L
38 -----------------------------
39
40 AUTHOR: Benjamin A. Allan
41
42 DATES: 06/94 - Original Code (system.a4l)
43 02/95 - Definitions for discrete variables added by
44 Craig Schmidt (CWS). (system.a4l)
45 08/95 Jennifer Stokes extensions for ODE solvers.
46 04/96 - Modified for the use of constants
47 03/98 - Added messages.
48
49 CONTENTS: Basic definitions for relation, solver_var,
50 and generic_real. This file is necessary for all
51 other ASCEND models to work on ASCEND3C with the
52 blsode DAE interface. For strictly algebraic
53 modeling, the other system.a4l should be used and
54 will give rather smaller (memorywise) solver_var.
55
56 *============================================================================*)
57
58 DEFINITION relation
59
60 included IS_A boolean;
61 message IS_A symbol;
62
63 included := TRUE;
64 message := 'none';
65 END relation;
66
67
68 DEFINITION logic_relation
69
70 included IS_A boolean;
71 included := TRUE;
72
73 message IS_A symbol;
74 message := 'none';
75
76 END logic_relation;
77
78 ATOM boolean_var REFINES boolean
79 DEFAULT TRUE;
80
81 fixed IS_A boolean;
82 fixed := FALSE;
83
84 END boolean_var;
85
86 ATOM solver_var REFINES real
87 DEFAULT 0.5 {?};
88
89 lower_bound IS_A real;
90 upper_bound IS_A real;
91 nominal IS_A real;
92 fixed IS_A boolean;
93 message IS_A symbol;
94
95 ode_type IS_A integer;
96 ode_id IS_A integer;
97 obs_id IS_A integer;
98 ode_atol IS_A real;
99 ode_rtol IS_A real;
100
101 fixed := FALSE;
102 lower_bound := -1e20 {?};
103 upper_bound := 1e20 {?};
104 nominal := 0.5 {?};
105 message := 'none';
106
107 ode_type := 0;
108 ode_atol := 1e-4 {?};
109 ode_rtol := 1e-8 {?};
110
111 END solver_var;
112
113 ATOM generic_real REFINES solver_var
114 DIMENSIONLESS
115 DEFAULT 0.5;
116 lower_bound := -1e20;
117 upper_bound := 1e20;
118 nominal := 0.5;
119 END generic_real;
120
121 (*============================================================================*
122
123 Modified by CWS, 2/95
124
125 solver_int is an integer variable for an MILP solver
126 lower bound almost always 0
127 relaxed indicates if the var should be treated as a normal solver_var
128 solver_binary is a binary variable for a MILP solver
129 lower bound must be 0, and upper bound must be 1
130 solver_semi is a semicontinous variable for use in SCICONIC
131 this var can have a value between 1 and the arbitrary upper bound, or 0.
132 (note that SCICONIC requires the lower bound to be 1)
133 if is_zero = true, then the current value is taken as 0
134
135 *===========================================================================*)
136
137
138 ATOM solver_int REFINES solver_var
139 DIMENSIONLESS
140 DEFAULT 0.0;
141
142 relaxed IS_A boolean;
143
144 lower_bound := 0.0;
145 upper_bound := 1000000.0;
146 nominal := 0.5;
147 END solver_int;
148
149 ATOM solver_binary REFINES solver_int
150 DIMENSIONLESS
151 DEFAULT 0.0;
152
153 lower_bound := 0.0;
154 upper_bound := 1.0;
155 nominal := 0.5;
156 END solver_binary;
157
158 ATOM solver_semi REFINES solver_var
159 DEFAULT 1.0 {?};
160
161 is_zero IS_A boolean;
162 relaxed IS_A boolean;
163
164 lower_bound := 1 {?};
165 upper_bound := 1e20 {?};
166 nominal := 1.0 {?};
167 END solver_semi;

john.pye@anu.edu.au
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