/[ascend]/trunk/pygtk/interface/simulation.cpp
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Contents of /trunk/pygtk/interface/simulation.cpp

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Revision 207 - (show annotations) (download) (as text)
Mon Jan 23 06:47:06 2006 UTC (14 years, 5 months ago) by johnpye
File MIME type: text/x-c++src
File size: 13612 byte(s)
Added ability to output expressions from PyGTK interface. Expressions are
output to the console using WriteRelationString. You must right-click on
a relation an hit 'properties'.
1 #include <iostream>
2 #include <iomanip>
3 #include <stdexcept>
4 #include <sstream>
5 using namespace std;
6
7 extern "C"{
8 #include <utilities/ascConfig.h>
9 #include <utilities/ascSignal.h>
10 #include <utilities/ascMalloc.h>
11 #include <general/dstring.h>
12 #include <general/tm_time.h>
13 #include <compiler/instance_enum.h>
14 #include <compiler/fractions.h>
15 #include <compiler/compiler.h>
16 #include <compiler/dimen.h>
17 #include <compiler/symtab.h>
18 #include <compiler/instance_io.h>
19 #include <compiler/instantiate.h>
20 #include <compiler/bintoken.h>
21 #include <compiler/instance_enum.h>
22 #include <compiler/instquery.h>
23 #include <compiler/check.h>
24 #include <compiler/name.h>
25 #include <compiler/pending.h>
26
27 #include <utilities/readln.h>
28 #include <solver/mtx.h>
29 #include <solver/slv_types.h>
30 #include <solver/var.h>
31 #include <solver/rel.h>
32 #include <solver/discrete.h>
33 #include <solver/conditional.h>
34 #include <solver/logrel.h>
35 #include <solver/bnd.h>
36 #include <solver/calc.h>
37 #include <solver/relman.h>
38 #include <solver/slv_common.h>
39 #include <solver/linsol.h>
40 #include <solver/linsolqr.h>
41 #include <solver/slv_client.h>
42 #include <solver/system.h>
43 #include <solver/slv_interface.h>
44 #include <solver/slvDOF.h>
45 #include <solver/slv3.h>
46 #include <solver/slv_stdcalls.h>
47 }
48
49 #include "simulation.h"
50 #include "solver.h"
51 #include "name.h"
52
53 /**
54 Create an instance of a type (call compiler etc)
55
56 @TODO fix mutex on compile command filenames
57 */
58 Simulation::Simulation(Instance *i, const SymChar &name) : Instanc(i, name), simroot(GetSimulationRoot(i),SymChar("simroot")){
59 is_built = false;
60 // Create an Instance object for the 'simulation root' (we'll call
61 // it the 'simulation model') and it can be fetched using 'getModel()'
62 // any time later.
63 //simroot = Instanc(GetSimulationRoot(i),name);
64 }
65
66 Simulation::Simulation(const Simulation &old) : Instanc(old), simroot(old.simroot){
67 is_built = old.is_built;
68 sys = old.sys;
69 bin_srcname = old.bin_srcname;
70 bin_objname = old.bin_objname;
71 bin_libname = old.bin_libname;
72 bin_cmd = old.bin_cmd;
73 bin_rm = old.bin_rm;
74 }
75
76 Simulation::~Simulation(){
77 //CONSOLE_DEBUG("Deleting simulation %s", getName().toString());
78 }
79
80 Instanc &
81 Simulation::getModel(){
82 if(!simroot.getInternalType()){
83 throw runtime_error("Simulation::getModel: simroot.getInternalType()is NULL");
84 }
85 return simroot;
86 }
87
88 void
89 Simulation::checkDoF() const{
90 cerr << "CHECKING DOF..." << endl;
91 int dof, status;
92 if(!sys){
93 throw runtime_error("System not yet built");
94 }
95 slvDOF_status(sys, &status, &dof);
96 switch(status){
97 case 1: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Underspecified; %d degrees of freedom",dof); break;
98 case 2: ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"Square"); break;
99 case 3: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Structurally singular"); break;
100 case 4: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Overspecified"); break;
101 case 5:
102 throw runtime_error("Unable to resolve degrees of freedom"); break;
103 default:
104 throw runtime_error("Invalid return status from slvDOF_status");
105 }
106 }
107
108 void
109 Simulation::run(const Method &method){
110 cerr << "RUNNING PROCEDURE " << method.getName() << endl;
111 Nam name = Nam(method.getSym());
112 //cerr << "CREATED NAME '" << name.getName() << "'" << endl;
113 Proc_enum pe;
114 pe = Initialize(
115 &*(getModel().getInternalType()) ,name.getInternalType(), "__not_named__"
116 ,ASCERR
117 ,0, NULL, NULL
118 );
119
120 if(pe == Proc_all_ok){
121 ERROR_REPORTER_NOLINE(ASC_PROG_NOTE,"Method '%s' was run (check above for errors)\n",method.getName());
122 //cerr << "METHOD " << method.getName() << " COMPLETED OK" << endl;
123 }else{
124 stringstream ss;
125 ss << "Simulation::run: Method '" << method.getName() << "' returned error: ";
126 switch(pe){
127 case Proc_CallOK: ss << "Call OK"; break;
128 case Proc_CallError: ss << "Error occurred in call"; break;
129 case Proc_CallReturn: ss << "Request that caller return (OK)"; break;
130 case Proc_CallBreak: ss << "Break out of enclosing loop"; break;
131 case Proc_CallContinue: ss << "Skip to next iteration"; break;
132
133 case Proc_break: ss << "Break"; break;
134 case Proc_continue: ss << "Continue"; break;
135 case Proc_fallthru: ss << "Fall-through"; break;
136 case Proc_return: ss << "Return"; break;
137 case Proc_stop: ss << "Stop"; break;
138 case Proc_stack_exceeded: ss << "Stack exceeded"; break;
139 case Proc_stack_exceeded_this_frame: ss << "Stack exceeded this frame"; break;
140 case Proc_case_matched: ss << "Case matched"; break;
141 case Proc_case_unmatched: ss << "Case unmatched"; break;
142
143 case Proc_case_undefined_value: ss << "Undefined value in case"; break;
144 case Proc_case_boolean_mismatch: ss << "Boolean mismatch in case"; break;
145 case Proc_case_integer_mismatch: ss << "Integer mismatch in case"; break;
146 case Proc_case_symbol_mismatch: ss << "Symbol mismatch in case"; break;
147 case Proc_case_wrong_index: ss << "Wrong index in case"; break;
148 case Proc_case_wrong_value: ss << "Wrong value in case"; break;
149 case Proc_case_extra_values: ss << "Extra values in case"; break;
150 case Proc_bad_statement: ss << "Bad statement"; break;
151 case Proc_bad_name: ss << "Bad name"; break;
152 case Proc_for_duplicate_index: ss << "Duplicate index"; break;
153 case Proc_for_set_err: ss << "For set error"; break;
154 case Proc_for_not_set: ss << "For not set"; break;
155 case Proc_illegal_name_use: ss << "Illegal name use"; break;
156 case Proc_name_not_found: ss << "Name not found"; break;
157 case Proc_instance_not_found: ss << "Instance not found"; break;
158 case Proc_type_not_found: ss << "Type not found"; break;
159 case Proc_illegal_type_use: ss << "Illegal use"; break;
160 case Proc_proc_not_found: ss << "Method not found"; break;
161 case Proc_if_expr_error_typeconflict: ss << "Type conflict in 'if' expression"; break;
162 case Proc_if_expr_error_nameunfound: ss << "Name not found in 'if' expression"; break;
163 case Proc_if_expr_error_incorrectname: ss << "Incorrect name in 'if' expression"; break;
164 case Proc_if_expr_error_undefinedvalue: ss << "Undefined value in 'if' expression"; break;
165 case Proc_if_expr_error_dimensionconflict: ss << "Dimension conflict in 'if' expression"; break;
166 case Proc_if_expr_error_emptychoice: ss << "Empty choice in 'if' expression"; break;
167 case Proc_if_expr_error_emptyintersection: ss << "Empty intersection in 'if' expression"; break;
168 case Proc_if_expr_error_confused: ss << "Confused in 'if' expression"; break;
169 case Proc_if_real_expr: ss << "Real-valued result in 'if' expression"; break;
170 case Proc_if_integer_expr: ss << "Integeter-valued result in 'if' expression"; break;
171 case Proc_if_symbol_expr: ss << "Symbol-valued result in 'if' expression"; break;
172 case Proc_if_set_expr: ss << "Set-valued result in 'if' expression"; break;
173 case Proc_if_not_logical: ss << "If expression is not logical"; break;
174 case Proc_user_interrupt: ss << "User interrupt"; break;
175 case Proc_infinite_loop: ss << "Infinite loop"; break;
176 case Proc_declarative_constant_assignment: ss << "Declarative constant assignment"; break;
177 case Proc_nonsense_assignment: ss << "Nonsense assginment (bogus)"; break;
178 case Proc_nonconsistent_assignment: ss << "Inconsistent assignment"; break;
179 case Proc_nonatom_assignment: ss << "Non-atom assignment"; break;
180 case Proc_nonboolean_assignment: ss << "Non-boolean assignment"; break;
181 case Proc_noninteger_assignment: ss << "Non-integer assignment"; break;
182 case Proc_nonreal_assignment: ss << "Non-real assignment"; break;
183 case Proc_nonsymbol_assignment: ss << "Non-symbol assignment"; break;
184 case Proc_lhs_error: ss << "Left-hand-side error"; break;
185 case Proc_rhs_error: ss << "Right-hand-side error"; break;
186 case Proc_unknown_error: ss << "Unknown error"; break;
187 default:
188 ss << "Invalid error code";
189 }
190
191
192 ss << " (" << int(pe) << ")";
193 throw runtime_error(ss.str());
194 }
195 }
196
197 const bool
198 Simulation::check(){
199 cerr << "CHECKING SIMULATION" << endl;
200 Instance *i1 = getModel().getInternalType();
201 CheckInstance(stderr, &*i1);
202 cerr << "...DONE CHECKING" << endl;
203 }
204
205 void
206 Simulation::build(){
207 cerr << "BUILDING SIMULATION..." << endl;
208 Instance *i1 = getModel().getInternalType();
209 sys = system_build(&*i1);
210 if(!sys){
211 throw runtime_error("Unable to build system");
212 }
213 is_built = true;
214 cerr << "...DONE BUILDING" << endl;
215 }
216
217 vector<Variable>
218 Simulation::getFixableVariables(){
219 cerr << "GETTING FIXABLE VARIABLES..." << endl;
220 vector<Variable> vars;
221 vars.reserve(100);
222
223 if(!sys){
224 throw runtime_error("Simulation system not yet built");
225 }
226
227 int32 **vip; /** TODO ensure 32 bit integers are used */
228
229 // Get IDs of elegible variables in array at vip...
230 if(!slvDOF_eligible(sys,vip)){
231 ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"No fixable variables found.");
232 }else{
233 //cerr << "FIXABLE VARS FOUND" << endl;
234 struct var_variable **vp = slv_get_solvers_var_list(sys);
235
236 /*struct var_variable *first_var = vp[0];
237 char *first_var_name = var_make_name(sys,first_var);
238 cerr << "FIRST SYS VAR IS NAMED " << var_make_name(s,first_var) << endl;
239 ascfree(first_var_name);*/
240
241 if(vp==NULL){
242 throw runtime_error("Simulation variable list is null");
243 }
244
245 // iterate through this list until we find a -1:
246 int i=0;
247 int var_index = (*vip)[i];
248 while(var_index >= 0){
249 //cerr << "FOUND VARIABLE var_index = " << var_index << endl;
250 struct var_variable *var = vp[var_index];
251 //cerr << "VARIABLE " << var_index << " IS ELIGIBLE" << endl;
252 char *var_name = var_make_name(sys,var);
253 //cerr << "ELIGIBLE VAR: " << var_name << endl;
254 ascfree(var_name);
255 vars.push_back(Variable( sys,var ));
256 ++i;
257 var_index = (*vip)[i];
258 }
259 ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"Found %d fixable variables.",i);
260 //cerr << "END ELEGIBLE VARS LIST" << endl;
261 ascfree(*vip);
262 //cerr << "FREED VIP LIST" << endl;
263 }
264
265 //cerr << "FINISHED WITH FINDING ELEGIBLE VARIABLES" << endl;
266 return vars;
267 }
268
269
270 void
271 Simulation::solve(Solver solver){
272 if(!is_built){
273 throw runtime_error("Simulation::solver: simulation is not yet built, can't start solving.");
274 }
275
276 cerr << "SIMULATION::SOLVE STARTING..." << endl;
277 enum inst_t k = getModel().getKind();
278 if(k!=MODEL_INST)throw runtime_error("Can't solve: not an instance of type MODEL_INST");
279
280 Instance *i1 = getInternalType();
281 int npend = NumberPendingInstances(&*i1);
282 if(npend)throw runtime_error("Can't solve: There are still %d pending instances");
283
284 if(!sys)throw runtime_error("Can't solve: Simulation system has not been built yet.");
285
286 cerr << "SIMULATION::SOLVE: SET SOLVER..." << endl;
287 setSolver(solver);
288
289
290 cerr << "PRESOLVING SYSTEM...";
291 slv_presolve(sys);
292 cerr << "DONE" << endl;
293
294 cerr << "SOLVING SYSTEM..." << endl;
295 // Add some stuff here for cleverer iteration....
296 unsigned niter = 1000;
297 double updateinterval = 0.02;
298
299 double starttime = tm_cpu_time();
300 double lastupdate = starttime;
301 slv_status_t status;
302 int solved_vars=0;
303 bool stop=false;
304
305 for(int iter = 1; iter <= niter && !stop; ++iter){
306 slv_get_status(sys,&status);
307 if(status.ready_to_solve){
308 slv_iterate(sys);
309 }
310 if(tm_cpu_time() - lastupdate > updateinterval && iter > 0){
311 if(solved_vars < status.block.previous_total_size){
312 solved_vars = status.block.previous_total_size;
313 CONSOLE_DEBUG("Solved %5d vars. Now block %3d/%-3d...", solved_vars, status.block.current_block, status.block.number_of);
314 }else{
315 CONSOLE_DEBUG("Total %5d iterations (%5d in current block of %d vars)", iter, status.block.iteration, status.block.current_size);
316 }
317 lastupdate = tm_cpu_time();
318 }
319 }
320
321 if(status.ok){
322 cerr << "... DONE SOLVING SYSTEM" << endl;
323 }else{
324 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Solver failed");
325 }
326
327 cerr << "SOLVER PERFORMED " << status.iteration << " ITERATIONS IN " << (tm_cpu_time() - starttime) << "s" << endl;
328
329 if(status.iteration_limit_exceeded){
330 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Exceeded interation limit");
331 }
332
333 if(status.converged){
334 ERROR_REPORTER_NOLINE(ASC_USER_SUCCESS,"Solver converged: %d iterations, %3.2e s"
335 ,status.iteration,status.cpu_elapsed);
336 }else{
337 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Solver not converged after %d iterations.",status.iteration);
338 }
339
340 }
341
342 void
343 Simulation::write(){
344 simroot.write();
345 }
346
347 //------------------------------------------
348 // ASSIGNING SOLVER TO SIMULATION
349
350 void
351 Simulation::setSolver(Solver &solver){
352 cerr << "SETTING SOLVER ON SIMULATION TO " << solver.getName() << endl;
353
354 if(!sys)throw runtime_error("Can't solve: Simulation system has not been built yet.");
355 // Update the solver object because sometimes an alternative solver can be returned, apparently.
356
357 int selected = slv_select_solver(sys, solver.getIndex());
358 //cerr << "Simulation::setSolver: slv_select_solver returned " << selected << endl;
359
360 if(selected<0){
361 ERROR_REPORTER_NOLINE(ASC_PROG_ERROR,"Failed to select solver");
362 throw runtime_error("Failed to select solver");
363 }
364
365 if(selected!=solver.getIndex()){
366 solver = Solver(slv_solver_name(selected));
367 ERROR_REPORTER_NOLINE(ASC_PROG_NOTE,"Substitute solver '%s' (index %d) selected.\n", solver.getName().c_str(), selected);
368 }
369
370 if( slv_eligible_solver(sys) <= 0){
371 ERROR_REPORTER_NOLINE(ASC_PROG_ERROR,"Inelegible solver '%s'", solver.getName().c_str() );
372 throw runtime_error("Inelegible solver");
373 }
374 }
375
376 const Solver
377 Simulation::getSolver() const{
378 int index = slv_get_selected_solver(sys);
379 //cerr << "Simulation::getSolver: index = " << index << endl;
380 if(index<0)throw runtime_error("No solver selected");
381
382 return Solver(slv_solver_name(index));
383 }
384
385
386

john.pye@anu.edu.au
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