10 #ifndef Tempus_Stepper_impl_hpp
11 #define Tempus_Stepper_impl_hpp
13 #include "NOX_Thyra.H"
17 template <
class Scalar>
23 bool isValidSetup = this->isValidSetup(*out);
26 this->isInitialized_ =
true;
31 template <
class Scalar>
34 if (!this->isInitialized()) {
37 !this->isInitialized(), std::logic_error,
38 "Error - " << this->description() <<
" is not initialized!");
42 template <
class Scalar>
49 *out <<
"Warning -- useFSAL for '" << this->getStepperType() <<
"'\n"
50 <<
"can only be set to true. Leaving set to true." << std::endl;
55 template <
class Scalar>
62 *out <<
"Warning -- useFSAL for '" << this->getStepperType() <<
"'\n"
63 <<
"can only be set to false. Leaving set to false." << std::endl;
68 template <
class Scalar>
72 stepperX_ == Teuchos::null, std::logic_error,
73 "Error - stepperX_ has not been set in setInitialConditions() or\n"
74 " can not be set from the state!\n");
79 template <
class Scalar>
83 stepperXDot_ == Teuchos::null, std::logic_error,
84 "Error - stepperXDot_ has not been set in setInitialConditions() or\n"
85 " can not be set from the state!\n");
90 template <
class Scalar>
94 stepperXDotDot_ == Teuchos::null, std::logic_error,
95 "Error - stepperXDotDot_ has not been set in setInitialConditions() or\n"
96 " can not be set from the state!\n");
98 return stepperXDotDot_;
101 template <
class Scalar>
105 if (state->getXDotDot() != Teuchos::null)
106 stepperXDotDot_ = state->getXDotDot();
111 stepperXDotDot_ == Teuchos::null, std::logic_error,
112 "Error - stepperXDotDot_ has not been set in setInitialConditions() or\n"
113 " can not be set from the state!\n");
115 return stepperXDotDot_;
118 template <
class Scalar>
122 auto l_out = Teuchos::fancyOStream(out.
getOStream());
124 l_out->setOutputToRootOnly(0);
126 *l_out <<
"--- Stepper ---\n"
129 <<
" stepperType_ = " << stepperType_ << std::endl
132 <<
" ICConsistency_ = " << ICConsistency_ << std::endl
135 <<
" stepperX_ = " << stepperX_ << std::endl
136 <<
" stepperXDot_ = " << stepperXDot_ << std::endl
137 <<
" stepperXDotDot_ = " << stepperXDotDot_ << std::endl;
140 template <
class Scalar>
144 bool isValidSetup =
true;
146 if (!(ICConsistency_ ==
"None" || ICConsistency_ ==
"Zero" ||
147 ICConsistency_ ==
"App" || ICConsistency_ ==
"Consistent")) {
148 isValidSetup =
false;
149 auto l_out = Teuchos::fancyOStream(out.
getOStream());
151 *l_out <<
"The IC consistency does not have a valid value!\n"
152 <<
"('None', 'Zero', 'App' or 'Consistent')\n"
153 <<
" ICConsistency = " << ICConsistency_ <<
"\n";
159 template <
class Scalar>
162 if (pl != Teuchos::null) {
163 this->setStepperName(pl->
name());
165 pl->
get<std::string>(
"Stepper Type", this->getStepperType());
167 stepperType != this->getStepperType(), std::runtime_error,
168 " ParameterList 'Stepper Type' (='"
170 <<
"')\n does not match type for this Stepper (='"
171 << this->getStepperType() <<
"').");
172 this->setStepperType(stepperType);
174 this->setUseFSAL(pl->
get<
bool>(
"Use FSAL", this->getUseFSAL()));
175 this->setICConsistency(pl->
get<std::string>(
"Initial Condition Consistency",
176 this->getICConsistency()));
177 this->setICConsistencyCheck(pl->
get<
bool>(
178 "Initial Condition Consistency Check", this->getICConsistencyCheck()));
182 template <
class Scalar>
186 return this->getValidParametersBasic();
189 template <
class Scalar>
193 auto pl = Teuchos::parameterList(this->getStepperName());
194 pl->template set<std::string>(
"Stepper Type", this->getStepperType());
196 pl->template set<bool>(
197 "Use FSAL", this->getUseFSAL(),
198 "The First-Same-As-Last (FSAL) principle is the situation where the\n"
199 "last function evaluation, f(x^{n-1},t^{n-1}) [a.k.a. xDot^{n-1}],\n"
200 "can be used for the first function evaluation, f(x^n,t^n)\n"
201 "[a.k.a. xDot^n]. For RK methods, this applies to the stages.\n"
203 "Often the FSAL priniciple can be used to save an evaluation.\n"
204 "However there are cases when it cannot be used, e.g., operator\n"
205 "splitting where other steppers/operators have modified the solution,\n"
206 "x^*, and thus require the function evaluation, f(x^*, t^{n-1}).\n"
208 "It should be noted that when the FSAL priniciple can be used\n"
209 "(can set useFSAL=true), setting useFSAL=false will give the\n"
210 "same solution but at additional expense. However, the reverse\n"
211 "is not true. When the FSAL priniciple can not be used\n"
212 "(need to set useFSAL=false), setting useFSAL=true will produce\n"
213 "incorrect solutions.\n"
215 "Default in general for explicit and implicit steppers is false,\n"
216 "but individual steppers can override this default.");
218 pl->template set<std::string>(
219 "Initial Condition Consistency", this->getICConsistency(),
220 "This indicates which type of consistency should be applied to\n"
221 "the initial conditions (ICs):\n"
223 " 'None' - Do nothing to the ICs provided in the SolutionHistory.\n"
224 " 'Zero' - Set the derivative of the SolutionState to zero in the\n"
225 " SolutionHistory provided, e.g., xDot^0 = 0, or \n"
227 " 'App' - Use the application's ICs, e.g., getNominalValues().\n"
228 " 'Consistent' - Make the initial conditions for x and xDot\n"
229 " consistent with the governing equations, e.g.,\n"
230 " xDot = f(x,t), and f(x, xDot, t) = 0. For implicit\n"
231 " ODEs, this requires a solve of f(x, xDot, t) = 0 for\n"
232 " xDot, and another Jacobian and residual may be\n"
233 " needed, e.g., boundary conditions on xDot may need\n"
234 " to replace boundary conditions on x.\n"
236 "In general for explicit steppers, the default is 'Consistent',\n"
237 "because it is fairly cheap with just one residual evaluation.\n"
238 "In general for implicit steppers, the default is 'None', because\n"
239 "the application often knows its IC and can set it the initial\n"
240 "SolutionState. Also, as noted above, 'Consistent' may require\n"
241 "another Jacobian from the application. Individual steppers may\n"
242 "override these defaults.");
244 pl->template set<bool>(
245 "Initial Condition Consistency Check", this->getICConsistencyCheck(),
246 "Check if the initial condition, x and xDot, is consistent with the\n"
247 "governing equations, xDot = f(x,t), or f(x, xDot, t) = 0.\n"
249 "In general for explicit and implicit steppers, the default is true,\n"
250 "because it is fairly cheap with just one residual evaluation.\n"
251 "Individual steppers may override this default.");
259 template <
class Scalar>
265 const MEB::InArgs<Scalar> inArgs = model->createInArgs();
266 const MEB::OutArgs<Scalar> outArgs = model->createOutArgs();
267 const bool supports =
268 inArgs.supports(MEB::IN_ARG_x) && outArgs.supports(MEB::OUT_ARG_f);
271 supports ==
false, std::logic_error,
273 <<
" can not support an explicit ODE with\n"
274 <<
" IN_ARG_x = " << inArgs.supports(MEB::IN_ARG_x) <<
"\n"
275 <<
" OUT_ARG_f = " << outArgs.supports(MEB::OUT_ARG_f) <<
"\n"
276 <<
"Explicit ODE requires:\n"
277 <<
" IN_ARG_x = true\n"
278 <<
" OUT_ARG_f = true\n"
280 <<
"NOTE: Currently the convention to evaluate f(x,t) is to set\n"
281 <<
"xdot=null! There is no InArgs support to test if xdot is null,\n"
282 <<
"so we set xdot=null and hope the ModelEvaluator can handle "
288 template <
class Scalar>
294 const MEB::InArgs<Scalar> inArgs = model->createInArgs();
295 const MEB::OutArgs<Scalar> outArgs = model->createOutArgs();
296 const bool supports = inArgs.supports(MEB::IN_ARG_x) &&
297 inArgs.supports(MEB::IN_ARG_x_dot) &&
298 outArgs.supports(MEB::OUT_ARG_f);
301 supports ==
false, std::logic_error,
303 <<
"can not support an explicit ODE with\n"
304 <<
" IN_ARG_x = " << inArgs.supports(MEB::IN_ARG_x) <<
"\n"
305 <<
" IN_ARG_x_dot = " << inArgs.supports(MEB::IN_ARG_x_dot) <<
"\n"
306 <<
" OUT_ARG_f = " << outArgs.supports(MEB::OUT_ARG_f) <<
"\n"
307 <<
"Explicit ODE requires:\n"
308 <<
" IN_ARG_x = true\n"
309 <<
" IN_ARG_x_dot = true\n"
310 <<
" OUT_ARG_f = true\n"
312 <<
"NOTE: Currently the convention to evaluate f(x, xdot, t) is to\n"
313 <<
"set xdotdot=null! There is no InArgs support to test if "
315 <<
"is null, so we set xdotdot=null and hope the ModelEvaluator can\n"
321 template <
class Scalar>
327 const MEB::InArgs<Scalar> inArgs = model->createInArgs();
328 const MEB::OutArgs<Scalar> outArgs = model->createOutArgs();
329 const bool supports =
330 inArgs.supports(MEB::IN_ARG_x) && inArgs.supports(MEB::IN_ARG_x_dot) &&
331 inArgs.supports(MEB::IN_ARG_alpha) && inArgs.supports(MEB::IN_ARG_beta) &&
332 !inArgs.supports(MEB::IN_ARG_W_x_dot_dot_coeff) &&
333 outArgs.supports(MEB::OUT_ARG_f) && outArgs.supports(MEB::OUT_ARG_W);
336 supports ==
false, std::logic_error,
337 model->description() <<
" can not support an implicit ODE with\n"
339 << inArgs.supports(MEB::IN_ARG_x) <<
"\n"
340 <<
" IN_ARG_x_dot = "
341 << inArgs.supports(MEB::IN_ARG_x_dot) <<
"\n"
342 <<
" IN_ARG_alpha = "
343 << inArgs.supports(MEB::IN_ARG_alpha) <<
"\n"
345 << inArgs.supports(MEB::IN_ARG_beta) <<
"\n"
346 <<
" IN_ARG_W_x_dot_dot_coeff = "
347 << inArgs.supports(MEB::IN_ARG_W_x_dot_dot_coeff)
350 << outArgs.supports(MEB::OUT_ARG_f) <<
"\n"
352 << outArgs.supports(MEB::OUT_ARG_W) <<
"\n"
353 <<
"Implicit ODE requires:\n"
354 <<
" IN_ARG_x = true\n"
355 <<
" IN_ARG_x_dot = true\n"
356 <<
" IN_ARG_alpha = true\n"
357 <<
" IN_ARG_beta = true\n"
358 <<
" IN_ARG_W_x_dot_dot_coeff = false\n"
359 <<
" OUT_ARG_f = true\n"
360 <<
" OUT_ARG_W = true\n");
365 template <
class Scalar>
371 const MEB::InArgs<Scalar> inArgs = model->createInArgs();
372 const MEB::OutArgs<Scalar> outArgs = model->createOutArgs();
373 const bool supports =
374 inArgs.supports(MEB::IN_ARG_x) && inArgs.supports(MEB::IN_ARG_x_dot) &&
375 inArgs.supports(MEB::IN_ARG_x_dot_dot) &&
376 inArgs.supports(MEB::IN_ARG_alpha) && inArgs.supports(MEB::IN_ARG_beta) &&
377 inArgs.supports(MEB::IN_ARG_W_x_dot_dot_coeff) &&
378 outArgs.supports(MEB::OUT_ARG_f) && outArgs.supports(MEB::OUT_ARG_W);
381 supports ==
false, std::logic_error,
382 model->description() <<
" can not support an implicit ODE with\n"
384 << inArgs.supports(MEB::IN_ARG_x) <<
"\n"
385 <<
" IN_ARG_x_dot = "
386 << inArgs.supports(MEB::IN_ARG_x_dot) <<
"\n"
387 <<
" IN_ARG_x_dot_dot = "
388 << inArgs.supports(MEB::IN_ARG_x_dot_dot) <<
"\n"
389 <<
" IN_ARG_alpha = "
390 << inArgs.supports(MEB::IN_ARG_alpha) <<
"\n"
392 << inArgs.supports(MEB::IN_ARG_beta) <<
"\n"
393 <<
" IN_ARG_W_x_dot_dot_coeff = "
394 << inArgs.supports(MEB::IN_ARG_W_x_dot_dot_coeff)
397 << outArgs.supports(MEB::OUT_ARG_f) <<
"\n"
399 << outArgs.supports(MEB::OUT_ARG_W) <<
"\n"
400 <<
"Implicit Second Order ODE requires:\n"
401 <<
" IN_ARG_x = true\n"
402 <<
" IN_ARG_x_dot = true\n"
403 <<
" IN_ARG_x_dot_dot = true\n"
404 <<
" IN_ARG_alpha = true\n"
405 <<
" IN_ARG_beta = true\n"
406 <<
" IN_ARG_W_x_dot_dot_coeff = true\n"
407 <<
" OUT_ARG_f = true\n"
408 <<
" OUT_ARG_W = true\n");
419 RCP<ParameterList> noxPL = Teuchos::parameterList();
422 RCP<ParameterList> directionPL = Teuchos::parameterList();
423 directionPL->set<std::string>(
"Method",
"Newton");
424 RCP<ParameterList> newtonPL = Teuchos::parameterList();
425 newtonPL->set<std::string>(
"Forcing Term Method",
"Constant");
426 newtonPL->set<
bool>(
"Rescue Bad Newton Solve", 1);
427 directionPL->set(
"Newton", *newtonPL);
428 noxPL->set(
"Direction", *directionPL);
431 RCP<ParameterList> lineSearchPL = Teuchos::parameterList();
432 lineSearchPL->set<std::string>(
"Method",
"Full Step");
433 RCP<ParameterList> fullStepPL = Teuchos::parameterList();
434 fullStepPL->set<
double>(
"Full Step", 1);
435 lineSearchPL->set(
"Full Step", *fullStepPL);
436 noxPL->set(
"Line Search", *lineSearchPL);
438 noxPL->set<std::string>(
"Nonlinear Solver",
"Line Search Based");
441 RCP<ParameterList> printingPL = Teuchos::parameterList();
442 printingPL->set<
int>(
"Output Precision", 3);
443 printingPL->set<
int>(
"Output Processor", 0);
444 RCP<ParameterList> outputPL = Teuchos::parameterList();
445 outputPL->set<
bool>(
"Error", 1);
446 outputPL->set<
bool>(
"Warning", 1);
447 outputPL->set<
bool>(
"Outer Iteration", 0);
448 outputPL->set<
bool>(
"Parameters", 0);
449 outputPL->set<
bool>(
"Details", 0);
450 outputPL->set<
bool>(
"Linear Solver Details", 1);
451 outputPL->set<
bool>(
"Stepper Iteration", 1);
452 outputPL->set<
bool>(
"Stepper Details", 1);
453 outputPL->set<
bool>(
"Stepper Parameters", 1);
454 printingPL->set(
"Output Information", *outputPL);
455 noxPL->set(
"Printing", *printingPL);
458 RCP<ParameterList> solverOptionsPL = Teuchos::parameterList();
459 solverOptionsPL->set<std::string>(
"Status Test Check Type",
"Minimal");
460 noxPL->set(
"Solver Options", *solverOptionsPL);
463 RCP<ParameterList> statusTestsPL = Teuchos::parameterList();
464 statusTestsPL->set<std::string>(
"Test Type",
"Combo");
465 statusTestsPL->set<std::string>(
"Combo Type",
"OR");
466 statusTestsPL->set<
int>(
"Number of Tests", 2);
467 RCP<ParameterList> test0PL = Teuchos::parameterList();
468 test0PL->set<std::string>(
"Test Type",
"NormF");
469 test0PL->set<
double>(
"Tolerance", 1e-08);
470 statusTestsPL->set(
"Test 0", *test0PL);
471 RCP<ParameterList> test1PL = Teuchos::parameterList();
472 test1PL->set<std::string>(
"Test Type",
"MaxIters");
473 test1PL->set<
int>(
"Maximum Iterations", 10);
474 statusTestsPL->set(
"Test 1", *test1PL);
475 noxPL->set(
"Status Tests", *statusTestsPL);
478 RCP<ParameterList> solverPL = Teuchos::parameterList(
"Default Solver");
479 solverPL->set(
"NOX", *noxPL);
485 #endif // Tempus_Stepper_impl_hpp
const std::string & name() const
virtual bool isValidSetup(Teuchos::FancyOStream &out) const
bool is_null(const boost::shared_ptr< T > &p)
T & get(const std::string &name, T def_value)
#define TEUCHOS_TEST_FOR_EXCEPTION(throw_exception_test, Exception, msg)
Teuchos::RCP< Teuchos::ParameterList > defaultSolverParameters()
Returns the default solver ParameterList for implicit Steppers.
void validExplicitODE(const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model)
Validate that the model supports explicit ODE evaluation, f(x,t) [=xdot].
virtual void initialize()
Initialize after construction and changing input parameters.
Teuchos::RCP< Teuchos::ParameterList > getValidParametersBasic() const
Add basic parameters to Steppers ParameterList.
void setUseFSALFalseOnly(bool a)
virtual void checkInitialized()
Check initialization, and error out on failure.
virtual void describe(Teuchos::FancyOStream &out, const Teuchos::EVerbosityLevel verbLevel) const
void setUseFSALTrueOnly(bool a)
virtual Teuchos::RCP< Thyra::VectorBase< Scalar > > getStepperX()
Get Stepper x.
basic_FancyOStream & setOutputToRootOnly(const int rootRank)
void setStepperValues(const Teuchos::RCP< Teuchos::ParameterList > pl)
Set Stepper member data from ParameterList.
void validSecondOrderExplicitODE(const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model)
void validSecondOrderODE_DAE(const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model)
RCP< std::basic_ostream< char_type, traits_type > > getOStream()
virtual Teuchos::RCP< Thyra::VectorBase< Scalar > > getStepperXDotDot()
Get Stepper xDotDot.
void validImplicitODE_DAE(const Teuchos::RCP< const Thyra::ModelEvaluator< Scalar > > &model)
Validate ME supports implicit ODE/DAE evaluation, f(xdot,x,t) [= 0].
#define TEUCHOS_TEST_FOR_EXCEPT(throw_exception_test)
Solution state for integrators and steppers.
std::string toString(const T &t)
virtual Teuchos::RCP< Thyra::VectorBase< Scalar > > getStepperXDot()
Get Stepper xDot.
virtual Teuchos::RCP< const Teuchos::ParameterList > getValidParameters() const