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Tempus Version of the Day
Time Integration
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Sine-Cosine model problem from Rythmos. This is a canonical Sine-Cosine differential equation. More...
#include <SinCosModel_decl.hpp>
Public Member Functions | |
| SinCosModel (Teuchos::RCP< Teuchos::ParameterList > pList=Teuchos::null) | |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | getExactSolution (double t) const |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | getExactSensSolution (int j, double t) const |
Private functions overridden from ModelEvaluatorDefaultBase. | |
| int | dim_ |
| Number of state unknowns (2) | |
| int | Np_ |
| Number of parameter vectors (1) | |
| int | np_ |
| Number of parameters in this vector (2) | |
| int | Ng_ |
| Number of observation functions (1) | |
| int | ng_ |
| Number of elements in this observation function (1) | |
| bool | haveIC_ |
| false => no nominal values are provided (default=true) | |
| bool | acceptModelParams_ |
| Changes inArgs to require parameters. | |
| bool | useDfDpAsTangent_ |
| Treat DfDp OutArg as tangent (df/dx*dx/dp+df/dp) | |
| bool | isInitialized_ |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | inArgs_ |
| Thyra::ModelEvaluatorBase::OutArgs< Scalar > | outArgs_ |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | nominalValues_ |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | x_space_ |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | f_space_ |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | p_space_ |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | g_space_ |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | DxDp_space_ |
| Scalar | a_ |
| Model parameter. | |
| Scalar | f_ |
| Model parameter. | |
| Scalar | L_ |
| Model parameter. | |
| Scalar | phi_ |
| Parameter determined from the IC. | |
| Scalar | b_ |
| Parameter determined from the IC. | |
| Scalar | t0_ic_ |
| Time value where the initial condition is specified. | |
| Scalar | x0_ic_ |
| Initial condition for x0. | |
| Scalar | x1_ic_ |
| Initial condition for x1. | |
| Thyra::ModelEvaluatorBase::OutArgs< Scalar > | createOutArgsImpl () const |
| void | evalModelImpl (const Thyra::ModelEvaluatorBase::InArgs< Scalar > &inArgs_bar, const Thyra::ModelEvaluatorBase::OutArgs< Scalar > &outArgs_bar) const |
| void | calculateCoeffFromIC_ () |
Public functions overridden from ModelEvaluator. | |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | get_x_space () const |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | get_f_space () const |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | getNominalValues () const |
| Teuchos::RCP< Thyra::LinearOpWithSolveBase< Scalar > > | create_W () const |
| Teuchos::RCP< Thyra::LinearOpBase< Scalar > > | create_W_op () const |
| Teuchos::RCP< const Thyra::LinearOpWithSolveFactoryBase< Scalar > > | get_W_factory () const |
| Thyra::ModelEvaluatorBase::InArgs< Scalar > | createInArgs () const |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | get_p_space (int l) const |
| Teuchos::RCP< const Teuchos::Array< std::string > > | get_p_names (int l) const |
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > | get_g_space (int j) const |
Public functions overridden from ParameterListAcceptor. | |
| void | setParameterList (Teuchos::RCP< Teuchos::ParameterList > const ¶mList) |
| Teuchos::RCP< const Teuchos::ParameterList > | getValidParameters () const |
| void | setupInOutArgs_ () const |
Sine-Cosine model problem from Rythmos. This is a canonical Sine-Cosine differential equation.
![\[
\mathbf{\ddot{x}}=-\mathbf{x}
\]](form_376.png)
with a few enhancements. We start with the exact solution to the differential equation

then the form of the model is

where the default parameter values are 


![\begin{eqnarray*}
x_{0}(t_{0}=0) & = & \gamma_{0}[=0]\\
x_{1}(t_{0}=0) & = & \gamma_{1}[=1]
\end{eqnarray*}](form_382.png)
determine the remaining coefficients
![\begin{eqnarray*}
\phi & = & \arctan(((f/L)/\gamma_{1})*(\gamma_{0}-a))-(f/L)*t_{0}[=0]\\
b & = & \gamma_{1}/((f/L)*cos((f/L)*t_{0}+\phi))[=1]
\end{eqnarray*}](form_383.png)
Therefore this model has three model parameters and two initial conditions which effect the exact solution as above.
![\[
\mathbf{p}=(a,f,L)
\]](form_384.png)
![\[
\dot{\mathbf{x}}=\mathbf{F}(\mathbf{x},t,\mathbf{p})
\]](form_385.png)
where

The exact sensitivities, 
![\[
\mathbf{s}(t)=\left[\begin{array}{cc}
1 & 0\\
\left(\frac{b}{L}\right)t\,\cos\left(\left(\frac{f}{L}\right)t+\phi\right)
&
\left(\frac{b}{L}\right)\cos\left(\left(\frac{f}{L}\right)t+\phi\right)-\frac{b\,
f\, t}{L^{2}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right)\\
-\frac{b\, f\, t}{L^{2}}\cos\left(\left(\frac{f}{L}\right)t+\phi\right) &
-\frac{b\, f}{L^{2}}\cos\left(\left(\frac{f}{L}\right)t+\phi\right)+\frac{b\,
f^{2}\, t}{L^{3}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right)
\end{array}\right]
\]](form_388.png)
and for the default initial conditions, 

![\[
\mathbf{s}(t=0)=\left[\begin{array}{cc}
1 & 0\\
0 & \frac{b}{L}\\
0 & -\frac{f}{L^{2}}
\end{array}\right]
\]](form_391.png)
The time differentiated sensitivities, 
![\[
\dot{\mathbf{s}}(t)=\left[\begin{array}{cc}
0 & 0\\
\left(\frac{b}{L}\right)\cos\left(\left(\frac{f}{L}\right)t+\phi\right)-\frac{b\,
f\, t}{L^{2}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right) & -\frac{2b\,
f}{L^{2}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right)\left(\frac{b}{L}\right)-\frac{b\,
f^{2}\, t}{L^{3}}\cos\left(\left(\frac{f}{L}\right)t+\phi\right)\\
-\frac{b\,
f}{L^{2}}\cos\left(\left(\frac{f}{L}\right)t+\phi\right)+\frac{b\, f^{2}\,
t}{L^{3}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right) & \frac{2b\,
f^{2}}{L^{3}}\sin\left(\left(\frac{f}{L}\right)t+\phi\right)+\frac{b\, f^{3}\,
t}{L^{4}}\cos\left(\left(\frac{f}{L}\right)t+\phi\right)
\end{array}\right]
\]](form_393.png)
Definition at line 109 of file SinCosModel_decl.hpp.
| Tempus_Test::SinCosModel< Scalar >::SinCosModel | ( | Teuchos::RCP< Teuchos::ParameterList > | pList = Teuchos::null | ) |
Definition at line 30 of file SinCosModel_impl.hpp.
| Thyra::ModelEvaluatorBase::InArgs< Scalar > Tempus_Test::SinCosModel< Scalar >::getExactSolution | ( | double | t | ) | const |
Definition at line 62 of file SinCosModel_impl.hpp.
| Thyra::ModelEvaluatorBase::InArgs< Scalar > Tempus_Test::SinCosModel< Scalar >::getExactSensSolution | ( | int | j, |
| double | t | ||
| ) | const |
Definition at line 98 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::get_x_space | ( | ) | const |
Definition at line 161 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::get_f_space | ( | ) | const |
Definition at line 168 of file SinCosModel_impl.hpp.
| Thyra::ModelEvaluatorBase::InArgs< Scalar > Tempus_Test::SinCosModel< Scalar >::getNominalValues | ( | ) | const |
Definition at line 175 of file SinCosModel_impl.hpp.
| Teuchos::RCP< Thyra::LinearOpWithSolveBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::create_W | ( | ) | const |
Definition at line 184 of file SinCosModel_impl.hpp.
| Teuchos::RCP< Thyra::LinearOpBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::create_W_op | ( | ) | const |
Definition at line 227 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Thyra::LinearOpWithSolveFactoryBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::get_W_factory | ( | ) | const |
Definition at line 237 of file SinCosModel_impl.hpp.
| Thyra::ModelEvaluatorBase::InArgs< Scalar > Tempus_Test::SinCosModel< Scalar >::createInArgs | ( | ) | const |
Definition at line 256 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::get_p_space | ( | int | l | ) | const |
Definition at line 437 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Teuchos::Array< std::string > > Tempus_Test::SinCosModel< Scalar >::get_p_names | ( | int | l | ) | const |
Definition at line 452 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Thyra::VectorSpaceBase< Scalar > > Tempus_Test::SinCosModel< Scalar >::get_g_space | ( | int | j | ) | const |
Definition at line 474 of file SinCosModel_impl.hpp.
| void Tempus_Test::SinCosModel< Scalar >::setParameterList | ( | Teuchos::RCP< Teuchos::ParameterList > const & | paramList | ) |
Definition at line 556 of file SinCosModel_impl.hpp.
| Teuchos::RCP< const Teuchos::ParameterList > Tempus_Test::SinCosModel< Scalar >::getValidParameters | ( | ) | const |
Definition at line 588 of file SinCosModel_impl.hpp.
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Definition at line 483 of file SinCosModel_impl.hpp.
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Definition at line 267 of file SinCosModel_impl.hpp.
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Definition at line 274 of file SinCosModel_impl.hpp.
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Definition at line 612 of file SinCosModel_impl.hpp.
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Number of state unknowns (2)
Definition at line 160 of file SinCosModel_decl.hpp.
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Number of parameter vectors (1)
Definition at line 161 of file SinCosModel_decl.hpp.
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Number of parameters in this vector (2)
Definition at line 162 of file SinCosModel_decl.hpp.
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Number of observation functions (1)
Definition at line 163 of file SinCosModel_decl.hpp.
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Number of elements in this observation function (1)
Definition at line 164 of file SinCosModel_decl.hpp.
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false => no nominal values are provided (default=true)
Definition at line 165 of file SinCosModel_decl.hpp.
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Changes inArgs to require parameters.
Definition at line 166 of file SinCosModel_decl.hpp.
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Treat DfDp OutArg as tangent (df/dx*dx/dp+df/dp)
Definition at line 167 of file SinCosModel_decl.hpp.
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Definition at line 168 of file SinCosModel_decl.hpp.
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Definition at line 169 of file SinCosModel_decl.hpp.
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Definition at line 170 of file SinCosModel_decl.hpp.
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Definition at line 171 of file SinCosModel_decl.hpp.
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Definition at line 172 of file SinCosModel_decl.hpp.
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Definition at line 173 of file SinCosModel_decl.hpp.
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Definition at line 174 of file SinCosModel_decl.hpp.
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Definition at line 175 of file SinCosModel_decl.hpp.
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Definition at line 176 of file SinCosModel_decl.hpp.
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Model parameter.
Definition at line 180 of file SinCosModel_decl.hpp.
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Model parameter.
Definition at line 181 of file SinCosModel_decl.hpp.
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Model parameter.
Definition at line 182 of file SinCosModel_decl.hpp.
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Parameter determined from the IC.
Definition at line 183 of file SinCosModel_decl.hpp.
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Parameter determined from the IC.
Definition at line 184 of file SinCosModel_decl.hpp.
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Time value where the initial condition is specified.
Definition at line 185 of file SinCosModel_decl.hpp.
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Initial condition for x0.
Definition at line 186 of file SinCosModel_decl.hpp.
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Initial condition for x1.
Definition at line 187 of file SinCosModel_decl.hpp.