Derived class within the interface class hierarchy for supporting approximations to simulation-based results. More...
Public Member Functions | |
ApproximationInterface (ProblemDescDB &problem_db, const Variables &actual_model_vars, size_t num_fns) | |
primary constructor | |
ApproximationInterface (const String &approx_type, const UShortArray &approx_order, const Variables &actual_model_vars, size_t num_fns, unsigned short data_order) | |
alternate constructor for instantiations on the fly | |
~ApproximationInterface () | |
destructor | |
Protected Member Functions | |
void | map (const Variables &vars, const ActiveSet &set, Response &response, const bool asynch_flag=false) |
the function evaluator: provides an approximate "mapping" from the variables to the responses using functionSurfaces | |
int | minimum_points (bool constraint_flag) const |
returns the minimum number of samples required to build the functionSurfaces | |
int | recommended_points (bool constraint_flag) const |
returns the recommended number of samples recommended to build the functionSurfaces | |
void | approximation_function_indices (const IntSet &approx_fn_indices) |
set the (currently active) approximation function index set | |
void | update_approximation (const Variables &vars, const Response &response) |
void | update_approximation (const RealMatrix &samples, const ResponseArray &resp_array) |
void | update_approximation (const VariablesArray &vars_array, const ResponseArray &resp_array) |
void | append_approximation (const Variables &vars, const Response &response) |
void | append_approximation (const RealMatrix &samples, const ResponseArray &resp_array) |
void | append_approximation (const VariablesArray &vars_array, const ResponseArray &resp_array) |
void | build_approximation (const BoolDeque &rebuild_deque, const RealVector &lower_bnds, const RealVector &upper_bnds) |
void | rebuild_approximation (const BoolDeque &rebuild_deque) |
void | pop_approximation (bool save_sdp_set) |
void | restore_approximation () |
bool | restore_available () |
void | finalize_approximation () |
finalizes the approximation by applying all trial increments | |
void | clear_current () |
clears current data from an approximation interface | |
void | clear_all () |
clears all data from an approximation interface | |
bool | anchor () const |
queries the presence of an anchorPoint within an approximation interface | |
const Pecos::SurrogateDataPoint & | anchor_point () const |
returns the anchorPoint used within an approximation interface | |
std::vector< Approximation > & | approximations () |
retrieve the Approximations within an ApproximationInterface | |
const RealVectorArray & | approximation_coefficients () |
retrieve the approximation coefficients from each Approximation within an ApproximationInterface | |
void | approximation_coefficients (const RealVectorArray &approx_coeffs) |
set the approximation coefficients within each Approximation within an ApproximationInterface | |
const RealVector & | approximation_variances (const RealVector &c_vars) |
retrieve the approximation variances from each Approximation within an ApproximationInterface | |
const SDPList & | approximation_data (size_t index) |
retrieve the approximation data from a particular Approximation within an ApproximationInterface | |
const IntResponseMap & | synch () |
recovers data from a series of asynchronous evaluations (blocking) | |
const IntResponseMap & | synch_nowait () |
recovers data from a series of asynchronous evaluations (nonblocking) | |
Private Attributes | |
IntSet | approxFnIndices |
for incomplete approximation sets, this array specifies the response function subset that is approximated | |
std::vector< Approximation > | functionSurfaces |
list of approximations, one per response function | |
RealVectorArray | functionSurfaceCoeffs |
array of approximation coefficient vectors, one vector per response function | |
RealVector | functionSurfaceVariances |
vector of approximation variances, one value per response function | |
SDPList | functionSurfaceDataPoints |
list of surrogate data points used in building the approximation for a particular response function | |
StringArray | diag_list |
List of diagnostic metrics. | |
Variables | actualModelVars |
copy of the actualModel variables object used to simplify conversion among differing variable views | |
IntResponseMap | beforeSynchResponseMap |
bookkeeping map to catalogue responses generated in map() for use in synch() and synch_nowait(). This supports pseudo-asynchronous operations (approximate responses are always computed synchronously, but asynchronous virtual functions are supported through bookkeeping). |
Derived class within the interface class hierarchy for supporting approximations to simulation-based results.
ApproximationInterface provides an interface class for building a set of global/local/multipoint approximations and performing approximate function evaluations using them. It contains a list of Approximation objects, one for each response function.
void update_approximation | ( | const Variables & | vars, |
const Response & | response | ||
) | [protected, virtual] |
This function populates/replaces each Approximation::anchorPoint with the incoming variables/response data point.
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void update_approximation | ( | const RealMatrix & | samples, |
const ResponseArray & | resp_array | ||
) | [protected, virtual] |
This function populates/replaces each Approximation::currentPoints with the incoming variables/response arrays.
Reimplemented from Interface.
References Dakota::abort_handler(), ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void update_approximation | ( | const VariablesArray & | vars_array, |
const ResponseArray & | resp_array | ||
) | [protected, virtual] |
This function populates/replaces each Approximation::currentPoints with the incoming variables/response arrays.
Reimplemented from Interface.
References Dakota::abort_handler(), ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void append_approximation | ( | const Variables & | vars, |
const Response & | response | ||
) | [protected, virtual] |
This function appends to each Approximation::currentPoints with one incoming variables/response data point.
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void append_approximation | ( | const RealMatrix & | samples, |
const ResponseArray & | resp_array | ||
) | [protected, virtual] |
This function appends to each Approximation::currentPoints with multiple incoming variables/response data points.
Reimplemented from Interface.
References Dakota::abort_handler(), ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void append_approximation | ( | const VariablesArray & | vars_array, |
const ResponseArray & | resp_array | ||
) | [protected, virtual] |
This function appends to each Approximation::currentPoints with multiple incoming variables/response data points.
Reimplemented from Interface.
References Dakota::abort_handler(), ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void build_approximation | ( | const BoolDeque & | rebuild_deque, |
const RealVector & | lower_bnds, | ||
const RealVector & | upper_bnds | ||
) | [protected, virtual] |
This function finds the coefficients for each Approximation based on the data passed through update_approximation() calls. The bounds are used only for graphics visualization.
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, ApproximationInterface::diag_list, ApproximationInterface::functionSurfaces, and Interface::outputLevel.
void rebuild_approximation | ( | const BoolDeque & | rebuild_deque | ) | [protected, virtual] |
This function updates the coefficients for each Approximation based on data increments provided by {update,append}_approximation().
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void pop_approximation | ( | bool | save_sdp_set | ) | [protected, virtual] |
This function removes data provided by a previous call to append_approximation().
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
void restore_approximation | ( | ) | [protected, virtual] |
This function updates the coefficients for each Approximation based on data increments provided by {update,append}_approximation().
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
bool restore_available | ( | ) | [protected, virtual] |
This function updates the coefficients for each Approximation based on data increments provided by {update,append}_approximation().
Reimplemented from Interface.
References ApproximationInterface::approxFnIndices, and ApproximationInterface::functionSurfaces.
std::vector<Approximation> functionSurfaces [private] |
list of approximations, one per response function
This formulation allows the use of mixed approximations (i.e., different approximations used for different response functions), although the input specification is not currently general enough to support it.
Referenced by ApproximationInterface::anchor(), ApproximationInterface::anchor_point(), ApproximationInterface::append_approximation(), ApproximationInterface::approximation_coefficients(), ApproximationInterface::approximation_data(), ApproximationInterface::approximation_variances(), ApproximationInterface::ApproximationInterface(), ApproximationInterface::approximations(), ApproximationInterface::build_approximation(), ApproximationInterface::clear_all(), ApproximationInterface::clear_current(), ApproximationInterface::finalize_approximation(), ApproximationInterface::map(), ApproximationInterface::minimum_points(), ApproximationInterface::pop_approximation(), ApproximationInterface::rebuild_approximation(), ApproximationInterface::recommended_points(), ApproximationInterface::restore_approximation(), ApproximationInterface::restore_available(), and ApproximationInterface::update_approximation().