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

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Revision 233 - (show annotations) (download) (as text)
Sun Jan 29 16:55:27 2006 UTC (18 years, 4 months ago) by johnpye
File MIME type: text/x-c++src
File size: 14516 byte(s)
Something resembling an incidence matrix returned via SWIG...
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 "solverparameters.h"
52 #include "name.h"
53 #include "incidencematrix.h"
54
55 /**
56 Create an instance of a type (call compiler etc)
57
58 @TODO fix mutex on compile command filenames
59 */
60 Simulation::Simulation(Instance *i, const SymChar &name) : Instanc(i, name), simroot(GetSimulationRoot(i),SymChar("simroot")){
61 is_built = false;
62 // Create an Instance object for the 'simulation root' (we'll call
63 // it the 'simulation model') and it can be fetched using 'getModel()'
64 // any time later.
65 //simroot = Instanc(GetSimulationRoot(i),name);
66 }
67
68 Simulation::Simulation(const Simulation &old) : Instanc(old), simroot(old.simroot){
69 is_built = old.is_built;
70 sys = old.sys;
71 bin_srcname = old.bin_srcname;
72 bin_objname = old.bin_objname;
73 bin_libname = old.bin_libname;
74 bin_cmd = old.bin_cmd;
75 bin_rm = old.bin_rm;
76 }
77
78 Simulation::~Simulation(){
79 //CONSOLE_DEBUG("Deleting simulation %s", getName().toString());
80 }
81
82 Instanc &
83 Simulation::getModel(){
84 if(!simroot.getInternalType()){
85 throw runtime_error("Simulation::getModel: simroot.getInternalType()is NULL");
86 }
87 return simroot;
88 }
89
90 void
91 Simulation::checkDoF() const{
92 cerr << "CHECKING DOF..." << endl;
93 int dof, status;
94 if(!sys){
95 throw runtime_error("System not yet built");
96 }
97 slvDOF_status(sys, &status, &dof);
98 switch(status){
99 case 1: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Underspecified; %d degrees of freedom",dof); break;
100 case 2: ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"Square"); break;
101 case 3: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Structurally singular"); break;
102 case 4: ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Overspecified"); break;
103 case 5:
104 throw runtime_error("Unable to resolve degrees of freedom"); break;
105 default:
106 throw runtime_error("Invalid return status from slvDOF_status");
107 }
108 }
109
110 void
111 Simulation::run(const Method &method){
112 cerr << "RUNNING PROCEDURE " << method.getName() << endl;
113 Nam name = Nam(method.getSym());
114 //cerr << "CREATED NAME '" << name.getName() << "'" << endl;
115 Proc_enum pe;
116 pe = Initialize(
117 &*(getModel().getInternalType()) ,name.getInternalType(), "__not_named__"
118 ,ASCERR
119 ,0, NULL, NULL
120 );
121
122 if(pe == Proc_all_ok){
123 ERROR_REPORTER_NOLINE(ASC_PROG_NOTE,"Method '%s' was run (check above for errors)\n",method.getName());
124 //cerr << "METHOD " << method.getName() << " COMPLETED OK" << endl;
125 }else{
126 stringstream ss;
127 ss << "Simulation::run: Method '" << method.getName() << "' returned error: ";
128 switch(pe){
129 case Proc_CallOK: ss << "Call OK"; break;
130 case Proc_CallError: ss << "Error occurred in call"; break;
131 case Proc_CallReturn: ss << "Request that caller return (OK)"; break;
132 case Proc_CallBreak: ss << "Break out of enclosing loop"; break;
133 case Proc_CallContinue: ss << "Skip to next iteration"; break;
134
135 case Proc_break: ss << "Break"; break;
136 case Proc_continue: ss << "Continue"; break;
137 case Proc_fallthru: ss << "Fall-through"; break;
138 case Proc_return: ss << "Return"; break;
139 case Proc_stop: ss << "Stop"; break;
140 case Proc_stack_exceeded: ss << "Stack exceeded"; break;
141 case Proc_stack_exceeded_this_frame: ss << "Stack exceeded this frame"; break;
142 case Proc_case_matched: ss << "Case matched"; break;
143 case Proc_case_unmatched: ss << "Case unmatched"; break;
144
145 case Proc_case_undefined_value: ss << "Undefined value in case"; break;
146 case Proc_case_boolean_mismatch: ss << "Boolean mismatch in case"; break;
147 case Proc_case_integer_mismatch: ss << "Integer mismatch in case"; break;
148 case Proc_case_symbol_mismatch: ss << "Symbol mismatch in case"; break;
149 case Proc_case_wrong_index: ss << "Wrong index in case"; break;
150 case Proc_case_wrong_value: ss << "Wrong value in case"; break;
151 case Proc_case_extra_values: ss << "Extra values in case"; break;
152 case Proc_bad_statement: ss << "Bad statement"; break;
153 case Proc_bad_name: ss << "Bad name"; break;
154 case Proc_for_duplicate_index: ss << "Duplicate index"; break;
155 case Proc_for_set_err: ss << "For set error"; break;
156 case Proc_for_not_set: ss << "For not set"; break;
157 case Proc_illegal_name_use: ss << "Illegal name use"; break;
158 case Proc_name_not_found: ss << "Name not found"; break;
159 case Proc_instance_not_found: ss << "Instance not found"; break;
160 case Proc_type_not_found: ss << "Type not found"; break;
161 case Proc_illegal_type_use: ss << "Illegal use"; break;
162 case Proc_proc_not_found: ss << "Method not found"; break;
163 case Proc_if_expr_error_typeconflict: ss << "Type conflict in 'if' expression"; break;
164 case Proc_if_expr_error_nameunfound: ss << "Name not found in 'if' expression"; break;
165 case Proc_if_expr_error_incorrectname: ss << "Incorrect name in 'if' expression"; break;
166 case Proc_if_expr_error_undefinedvalue: ss << "Undefined value in 'if' expression"; break;
167 case Proc_if_expr_error_dimensionconflict: ss << "Dimension conflict in 'if' expression"; break;
168 case Proc_if_expr_error_emptychoice: ss << "Empty choice in 'if' expression"; break;
169 case Proc_if_expr_error_emptyintersection: ss << "Empty intersection in 'if' expression"; break;
170 case Proc_if_expr_error_confused: ss << "Confused in 'if' expression"; break;
171 case Proc_if_real_expr: ss << "Real-valued result in 'if' expression"; break;
172 case Proc_if_integer_expr: ss << "Integeter-valued result in 'if' expression"; break;
173 case Proc_if_symbol_expr: ss << "Symbol-valued result in 'if' expression"; break;
174 case Proc_if_set_expr: ss << "Set-valued result in 'if' expression"; break;
175 case Proc_if_not_logical: ss << "If expression is not logical"; break;
176 case Proc_user_interrupt: ss << "User interrupt"; break;
177 case Proc_infinite_loop: ss << "Infinite loop"; break;
178 case Proc_declarative_constant_assignment: ss << "Declarative constant assignment"; break;
179 case Proc_nonsense_assignment: ss << "Nonsense assginment (bogus)"; break;
180 case Proc_nonconsistent_assignment: ss << "Inconsistent assignment"; break;
181 case Proc_nonatom_assignment: ss << "Non-atom assignment"; break;
182 case Proc_nonboolean_assignment: ss << "Non-boolean assignment"; break;
183 case Proc_noninteger_assignment: ss << "Non-integer assignment"; break;
184 case Proc_nonreal_assignment: ss << "Non-real assignment"; break;
185 case Proc_nonsymbol_assignment: ss << "Non-symbol assignment"; break;
186 case Proc_lhs_error: ss << "Left-hand-side error"; break;
187 case Proc_rhs_error: ss << "Right-hand-side error"; break;
188 case Proc_unknown_error: ss << "Unknown error"; break;
189 default:
190 ss << "Invalid error code";
191 }
192
193
194 ss << " (" << int(pe) << ")";
195 throw runtime_error(ss.str());
196 }
197 }
198
199 const bool
200 Simulation::check(){
201 cerr << "CHECKING SIMULATION" << endl;
202 Instance *i1 = getModel().getInternalType();
203 CheckInstance(stderr, &*i1);
204 cerr << "...DONE CHECKING" << endl;
205 }
206
207 void
208 Simulation::build(){
209 cerr << "BUILDING SIMULATION..." << endl;
210 Instance *i1 = getModel().getInternalType();
211 sys = system_build(&*i1);
212 if(!sys){
213 throw runtime_error("Unable to build system");
214 }
215 is_built = true;
216 cerr << "...DONE BUILDING" << endl;
217 }
218
219 vector<Variable>
220 Simulation::getFixableVariables(){
221 cerr << "GETTING FIXABLE VARIABLES..." << endl;
222 vector<Variable> vars;
223 vars.reserve(100);
224
225 if(!sys){
226 throw runtime_error("Simulation system not yet built");
227 }
228
229 int32 **vip; /** TODO ensure 32 bit integers are used */
230
231 // Get IDs of elegible variables in array at vip...
232 if(!slvDOF_eligible(sys,vip)){
233 ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"No fixable variables found.");
234 }else{
235 //cerr << "FIXABLE VARS FOUND" << endl;
236 struct var_variable **vp = slv_get_solvers_var_list(sys);
237
238 /*struct var_variable *first_var = vp[0];
239 char *first_var_name = var_make_name(sys,first_var);
240 cerr << "FIRST SYS VAR IS NAMED " << var_make_name(s,first_var) << endl;
241 ascfree(first_var_name);*/
242
243 if(vp==NULL){
244 throw runtime_error("Simulation variable list is null");
245 }
246
247 // iterate through this list until we find a -1:
248 int i=0;
249 int var_index = (*vip)[i];
250 while(var_index >= 0){
251 //cerr << "FOUND VARIABLE var_index = " << var_index << endl;
252 struct var_variable *var = vp[var_index];
253 //cerr << "VARIABLE " << var_index << " IS ELIGIBLE" << endl;
254 char *var_name = var_make_name(sys,var);
255 //cerr << "ELIGIBLE VAR: " << var_name << endl;
256 ascfree(var_name);
257 vars.push_back(Variable( sys,var ));
258 ++i;
259 var_index = (*vip)[i];
260 }
261 ERROR_REPORTER_NOLINE(ASC_USER_NOTE,"Found %d fixable variables.",i);
262 //cerr << "END ELEGIBLE VARS LIST" << endl;
263 ascfree(*vip);
264 //cerr << "FREED VIP LIST" << endl;
265 }
266
267 //cerr << "FINISHED WITH FINDING ELEGIBLE VARIABLES" << endl;
268 return vars;
269 }
270
271
272 void
273 Simulation::solve(Solver solver){
274 if(!is_built){
275 throw runtime_error("Simulation::solver: simulation is not yet built, can't start solving.");
276 }
277
278 cerr << "SIMULATION::SOLVE STARTING..." << endl;
279 enum inst_t k = getModel().getKind();
280 if(k!=MODEL_INST)throw runtime_error("Can't solve: not an instance of type MODEL_INST");
281
282 Instance *i1 = getInternalType();
283 int npend = NumberPendingInstances(&*i1);
284 if(npend)throw runtime_error("Can't solve: There are still %d pending instances");
285
286 if(!sys)throw runtime_error("Can't solve: Simulation system has not been built yet.");
287
288 cerr << "SIMULATION::SOLVE: SET SOLVER..." << endl;
289 setSolver(solver);
290
291
292 cerr << "PRESOLVING SYSTEM...";
293 slv_presolve(sys);
294 cerr << "DONE" << endl;
295
296 cerr << "SOLVING SYSTEM..." << endl;
297 // Add some stuff here for cleverer iteration....
298 unsigned niter = 1000;
299 double updateinterval = 0.02;
300
301 double starttime = tm_cpu_time();
302 double lastupdate = starttime;
303 slv_status_t status;
304 int solved_vars=0;
305 bool stop=false;
306
307 for(int iter = 1; iter <= niter && !stop; ++iter){
308 slv_get_status(sys,&status);
309 if(status.ready_to_solve){
310 slv_iterate(sys);
311 }
312 if(tm_cpu_time() - lastupdate > updateinterval && iter > 0){
313 if(solved_vars < status.block.previous_total_size){
314 solved_vars = status.block.previous_total_size;
315 CONSOLE_DEBUG("Solved %5d vars. Now block %3d/%-3d...", solved_vars, status.block.current_block, status.block.number_of);
316 }else{
317 CONSOLE_DEBUG("Total %5d iterations (%5d in current block of %d vars)", iter, status.block.iteration, status.block.current_size);
318 }
319 lastupdate = tm_cpu_time();
320 }
321 }
322 double elapsed = tm_cpu_time() - starttime;
323
324 if(status.ok){
325 cerr << "... DONE SOLVING SYSTEM" << endl;
326 }else{
327 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Solver failed");
328 }
329
330 cerr << "SOLVER PERFORMED " << status.iteration << " ITERATIONS IN " << elapsed << "s" << endl;
331
332 if(status.iteration_limit_exceeded){
333 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Exceeded interation limit");
334 }
335
336 if(status.converged){
337 ERROR_REPORTER_NOLINE(ASC_USER_SUCCESS,"Solver converged: %d iterations (%.2f s)"
338 ,status.iteration,elapsed);
339 }else{
340 ERROR_REPORTER_NOLINE(ASC_USER_ERROR,"Solver not converged after %d iterations (%.2f s).",status.iteration,elapsed);
341 }
342
343 }
344
345 void
346 Simulation::write(){
347 simroot.write();
348 }
349
350 //------------------------------------------
351 // ASSIGNING SOLVER TO SIMULATION
352
353 void
354 Simulation::setSolver(Solver &solver){
355 cerr << "SETTING SOLVER ON SIMULATION TO " << solver.getName() << endl;
356
357 if(!sys)throw runtime_error("Can't solve: Simulation system has not been built yet.");
358 // Update the solver object because sometimes an alternative solver can be returned, apparently.
359
360 int selected = slv_select_solver(sys, solver.getIndex());
361 //cerr << "Simulation::setSolver: slv_select_solver returned " << selected << endl;
362
363 if(selected<0){
364 ERROR_REPORTER_NOLINE(ASC_PROG_ERROR,"Failed to select solver");
365 throw runtime_error("Failed to select solver");
366 }
367
368 if(selected!=solver.getIndex()){
369 solver = Solver(slv_solver_name(selected));
370 ERROR_REPORTER_NOLINE(ASC_PROG_NOTE,"Substitute solver '%s' (index %d) selected.\n", solver.getName().c_str(), selected);
371 }
372
373 if( slv_eligible_solver(sys) <= 0){
374 ERROR_REPORTER_NOLINE(ASC_PROG_ERROR,"Inelegible solver '%s'", solver.getName().c_str() );
375 throw runtime_error("Inelegible solver");
376 }
377 }
378
379 const Solver
380 Simulation::getSolver() const{
381 int index = slv_get_selected_solver(sys);
382 //cerr << "Simulation::getSolver: index = " << index << endl;
383 if(index<0)throw runtime_error("No solver selected");
384
385 return Solver(slv_solver_name(index));
386 }
387
388
389 /**
390 Get solver parameters struct wrapped up as a SolverParameters class.
391 */
392 SolverParameters
393 Simulation::getSolverParameters() const{
394 if(!sys)throw runtime_error("Can't getSolverParameters: Simulation system has not been built yet.");
395
396 slv_parameters_t p;
397 slv_get_parameters(sys,&p);
398 return SolverParameters(p);
399 }
400
401 /**
402 Update the solver parameters by passing a new set back
403 */
404 void
405 Simulation::setSolverParameters(SolverParameters &P){
406 if(!sys)throw runtime_error("Can't set solver parameters: simulation has not been built yet.");
407 slv_set_parameters(sys, &(P.getInternalType()));
408 }
409
410 slv_system_structure *
411 Simulation::getSystem(){
412 if(!sys)throw runtime_error("Can't getSystem: simulation not yet built");
413 return sys;
414 }
415
416 IncidenceMatrix
417 Simulation::getIncidenceMatrix(){
418 return IncidenceMatrix(*this);
419 }

john.pye@anu.edu.au
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