Detailed Description
methods to store an NLP and request function, gradient, and hessian values
Not a full NLPI, but implements a common part of many NLPIs that takes care of the problem storage and function, gradient, and hessian evaluation.
Definition in file nlpioracle.h.
Go to the source code of this file.
Typedefs | |
typedef struct SCIP_NlpiOracle | SCIP_NLPIORACLE |
Typedef Documentation
◆ SCIP_NLPIORACLE
typedef struct SCIP_NlpiOracle SCIP_NLPIORACLE |
NLPI oracle data structure
Definition at line 36 of file nlpioracle.h.
Function Documentation
◆ SCIPnlpiOracleCreate()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleCreate | ( | BMS_BLKMEM * | blkmem, |
SCIP_NLPIORACLE ** | oracle | ||
) |
creates an NLPIORACLE data structure
- Parameters
-
blkmem block memory oracle pointer to store NLPIORACLE data structure
Definition at line 1328 of file nlpioracle.c.
References BMSallocMemory, BMSclearMemory, createConstraint(), NULL, SCIP_ALLOC, SCIP_CALL, SCIP_DEFAULT_INFINITY, SCIP_OKAY, SCIPdebugMessage, SCIPexprintCreate(), SCIPexprintGetName(), and TRUE.
Referenced by SCIP_DECL_NLPICREATEPROBLEM().
◆ SCIPnlpiOracleFree()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleFree | ( | SCIP_NLPIORACLE ** | oracle | ) |
frees an NLPIORACLE data structure
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 1355 of file nlpioracle.c.
References BMSfreeMemory, freeConstraint(), freeConstraints(), freeVariables(), invalidateHessianLagSparsity(), invalidateJacobiSparsity(), NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPexprintFree(), and SCIPnlpiOracleSetProblemName().
Referenced by SCIP_DECL_NLPIFREEPROBLEM().
◆ SCIPnlpiOracleSetInfinity()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleSetInfinity | ( | SCIP_NLPIORACLE * | oracle, |
SCIP_Real | infinity | ||
) |
sets the value for infinity
- Parameters
-
oracle pointer to NLPIORACLE data structure infinity value to use for infinity
Definition at line 1384 of file nlpioracle.c.
References infinity, NULL, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPICREATEPROBLEM(), and SCIP_DECL_NLPISETREALPAR().
◆ SCIPnlpiOracleGetInfinity()
SCIP_EXPORT SCIP_Real SCIPnlpiOracleGetInfinity | ( | SCIP_NLPIORACLE * | oracle | ) |
gets the value for infinity
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 1400 of file nlpioracle.c.
References NULL, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPIGETREALPAR(), and SCIP_DECL_NLPISOLVE().
◆ SCIPnlpiOracleSetProblemName()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleSetProblemName | ( | SCIP_NLPIORACLE * | oracle, |
const char * | name | ||
) |
sets the problem name (used for printing)
- Parameters
-
oracle pointer to NLPIORACLE data structure name name of problem
Definition at line 1412 of file nlpioracle.c.
References BMSduplicateBlockMemoryArray, BMSfreeBlockMemoryArray, NULL, SCIP_ALLOC, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPICREATEPROBLEM(), and SCIPnlpiOracleFree().
◆ SCIPnlpiOracleGetProblemName()
SCIP_EXPORT const char* SCIPnlpiOracleGetProblemName | ( | SCIP_NLPIORACLE * | oracle | ) |
gets the problem name, or NULL if none set
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 1435 of file nlpioracle.c.
References NULL, and SCIPdebugMessage.
◆ SCIPnlpiOracleAddVars()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleAddVars | ( | SCIP_NLPIORACLE * | oracle, |
int | nvars, | ||
const SCIP_Real * | lbs, | ||
const SCIP_Real * | ubs, | ||
const char ** | varnames | ||
) |
adds variables
- Parameters
-
oracle pointer to NLPIORACLE data structure nvars number of variables to add lbs array with lower bounds of new variables, or NULL if all -infinity ubs array with upper bounds of new variables, or NULL if all +infinity varnames array with names of new variables, or NULL if no names should be stored
Definition at line 1447 of file nlpioracle.c.
References BMSallocBlockMemoryArray, BMSclearMemoryArray, BMScopyMemoryArray, BMSduplicateBlockMemoryArray, ensureVarsSize(), EPSEQ, invalidateHessianLagSparsity(), NULL, SCIP_ALLOC, SCIP_CALL, SCIP_DEFAULT_EPSILON, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPIADDVARS().
◆ SCIPnlpiOracleAddConstraints()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleAddConstraints | ( | SCIP_NLPIORACLE * | oracle, |
int | nconss, | ||
const SCIP_Real * | lhss, | ||
const SCIP_Real * | rhss, | ||
const int * | nlininds, | ||
int *const * | lininds, | ||
SCIP_Real *const * | linvals, | ||
const int * | nquadelems, | ||
SCIP_QUADELEM *const * | quadelems, | ||
int *const * | exprvaridxs, | ||
SCIP_EXPRTREE *const * | exprtrees, | ||
const char ** | consnames | ||
) |
adds constraints
linear coefficients: row(=constraint) oriented matrix; quadratic coefficients: row oriented matrix for each constraint
- Parameters
-
oracle pointer to NLPIORACLE data structure nconss number of constraints to add lhss array with left-hand sides of constraints, or NULL if all -infinity rhss array with right-hand sides of constraints, or NULL if all +infinity nlininds number of linear coefficients for each constraint, may be NULL in case of no linear part lininds indices of variables for linear coefficients for each constraint, may be NULL in case of no linear part linvals values of linear coefficient for each constraint, may be NULL in case of no linear part nquadelems number of elements in matrix of quadratic part for each constraint, may be NULL in case of no quadratic part in any constraint quadelems quadratic elements specifying quadratic part for each constraint, entry of array may be NULL in case of no quadratic part, may be NULL in case of no quadratic part in any constraint exprvaridxs NULL if no nonquadratic parts, otherwise epxrvaridxs[.] maps variable indices in expression tree to indices in nlp exprtrees NULL if no nonquadratic parts, otherwise exprtrees[.] gives nonquadratic part, or NULL if no nonquadratic part in this constraint consnames names of new constraints, or NULL if no names should be stored
Definition at line 1532 of file nlpioracle.c.
References createConstraint(), ensureConssSize(), SCIP_NlpiOracleCons::exprtree, FALSE, invalidateHessianLagSparsity(), invalidateJacobiSparsity(), SCIP_NlpiOracleCons::nquadelems, NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPexprintCompile(), TRUE, and updateVariableDegreesCons().
Referenced by SCIP_DECL_NLPIADDCONSTRAINTS().
◆ SCIPnlpiOracleSetObjective()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleSetObjective | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real | constant, | ||
int | nlin, | ||
const int * | lininds, | ||
const SCIP_Real * | linvals, | ||
int | nquadelems, | ||
const SCIP_QUADELEM * | quadelems, | ||
const int * | exprvaridxs, | ||
const SCIP_EXPRTREE * | exprtree | ||
) |
sets or overwrites objective, a minimization problem is expected
May change sparsity pattern.
- Parameters
-
oracle pointer to NLPIORACLE data structure constant constant part of objective nlin number of linear variable coefficients lininds indices of linear variables, or NULL if no linear part linvals coefficients of linear variables, or NULL if no linear part nquadelems number of entries in matrix of quadratic part quadelems entries in matrix of quadratic part, may be NULL in case of no quadratic part exprvaridxs maps variable indices in expression tree to indices in nlp, or NULL if no nonquadratic part exprtree expression tree of nonquadratic part, or NULL if no nonquadratic part
Definition at line 1610 of file nlpioracle.c.
References createConstraint(), FALSE, freeConstraint(), SCIP_NlpiOracle::infinity, invalidateHessianLagSparsity(), NULL, REALABS, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIPexprintCompile().
Referenced by SCIP_DECL_NLPISETOBJECTIVE().
◆ SCIPnlpiOracleChgVarBounds()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgVarBounds | ( | SCIP_NLPIORACLE * | oracle, |
int | nvars, | ||
const int * | indices, | ||
const SCIP_Real * | lbs, | ||
const SCIP_Real * | ubs | ||
) |
change variable bounds
- Parameters
-
oracle pointer to NLPIORACLE data structure nvars number of variables to change bounds indices indices of variables to change bounds lbs new lower bounds, or NULL if all should be -infty ubs new upper bounds, or NULL if all should be +infty
Definition at line 1647 of file nlpioracle.c.
References EPSEQ, NULL, SCIP_DEFAULT_EPSILON, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPICHGVARBOUNDS().
◆ SCIPnlpiOracleChgConsSides()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgConsSides | ( | SCIP_NLPIORACLE * | oracle, |
int | nconss, | ||
const int * | indices, | ||
const SCIP_Real * | lhss, | ||
const SCIP_Real * | rhss | ||
) |
change constraint sides
change constraint bounds
- Parameters
-
oracle pointer to NLPIORACLE data structure nconss number of constraints to change bounds indices indices of constraints to change bounds lhss new left-hand sides, or NULL if all should be -infty rhss new right-hand sides, or NULL if all should be +infty
Definition at line 1683 of file nlpioracle.c.
References EPSEQ, NULL, SCIP_DEFAULT_EPSILON, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPICHGCONSSIDES().
◆ SCIPnlpiOracleDelVarSet()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleDelVarSet | ( | SCIP_NLPIORACLE * | oracle, |
int * | delstats | ||
) |
deletes a set of variables
- Parameters
-
oracle pointer to NLPIORACLE data structure delstats deletion status of vars in input (1 if var should be deleted, 0 if not); new position of var in output (-1 if var was deleted)
Definition at line 1717 of file nlpioracle.c.
References BMSfreeBlockMemoryArray, BMSfreeBlockMemoryArrayNull, clearDeletedLinearElements(), clearDeletedQuadElements(), SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracleCons::exprvaridxs, freeVariables(), invalidateHessianLagSparsity(), invalidateJacobiSparsity(), SCIP_NlpiOracleCons::lincoefs, SCIP_NlpiOracleCons::linidxs, mapIndices(), mapIndicesQuad(), moveVariable(), SCIP_NlpiOracleCons::nlinidxs, NULL, SCIP_NlpiOracleCons::quadelems, SCIP_NlpiOracleCons::quadsize, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPexprtreeFree(), SCIPexprtreeGetNVars(), SCIPquadelemSort(), and SCIPsortIntReal().
Referenced by SCIP_DECL_NLPIDELVARSET().
◆ SCIPnlpiOracleDelConsSet()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleDelConsSet | ( | SCIP_NLPIORACLE * | oracle, |
int * | delstats | ||
) |
deletes a set of constraints
- Parameters
-
oracle pointer to NLPIORACLE data structure delstats array with deletion status of rows in input (1 if row should be deleted, 0 if not); new position of row in output (-1 if row was deleted)
Definition at line 1827 of file nlpioracle.c.
References FALSE, freeConstraint(), freeConstraints(), invalidateHessianLagSparsity(), invalidateJacobiSparsity(), NULL, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPIDELCONSSET().
◆ SCIPnlpiOracleChgLinearCoefs()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgLinearCoefs | ( | SCIP_NLPIORACLE * | oracle, |
int | considx, | ||
int | nentries, | ||
const int * | varidxs, | ||
const SCIP_Real * | newcoefs | ||
) |
changes (or adds) linear coefficients in one constraint or objective
changes linear coefficients in one constraint or objective
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint where linear coefficients should be changed, or -1 for objective nentries number of coefficients to change varidxs array with indices of variables which coefficients should be changed newcoefs array with new coefficients of variables
Definition at line 1905 of file nlpioracle.c.
References BMSduplicateBlockMemoryArray, ensureConsLinSize(), FALSE, invalidateJacobiSparsity(), SCIP_NlpiOracleCons::lincoefs, SCIP_NlpiOracleCons::linidxs, SCIP_NlpiOracleCons::linsize, MAX, SCIP_NlpiOracleCons::nlinidxs, NULL, SCIP_ALLOC, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPsortedvecFindInt(), sortLinearCoefficients(), and TRUE.
Referenced by SCIP_DECL_NLPICHGLINEARCOEFS().
◆ SCIPnlpiOracleChgQuadCoefs()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgQuadCoefs | ( | SCIP_NLPIORACLE * | oracle, |
int | considx, | ||
int | nquadelems, | ||
const SCIP_QUADELEM * | quadelems | ||
) |
changes (or adds) coefficients in the quadratic part of one constraint or objective
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint where quadratic coefficients should be changed, or -1 for objective nquadelems number of entries in quadratic constraint to change quadelems new elements in quadratic matrix (replacing already existing ones or adding new ones)
Definition at line 2002 of file nlpioracle.c.
References BMSduplicateBlockMemoryArray, SCIP_QuadElement::coef, ensureConsQuadSize(), FALSE, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, invalidateHessianLagSparsity(), invalidateJacobiSparsity(), MAX, SCIP_NlpiOracleCons::nquadelems, NULL, SCIP_NlpiOracleCons::quadelems, SCIP_NlpiOracleCons::quadsize, SCIP_ALLOC, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPquadelemSort(), SCIPquadelemSortedFind(), SCIPquadelemSqueeze(), and TRUE.
Referenced by SCIP_DECL_NLPICHGQUADCOEFS().
◆ SCIPnlpiOracleChgExprtree()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgExprtree | ( | SCIP_NLPIORACLE * | oracle, |
int | considx, | ||
const int * | exprvaridxs, | ||
const SCIP_EXPRTREE * | exprtree | ||
) |
replaces expression tree of one constraint or objective
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint where expression tree should be changed, or -1 for objective exprvaridxs problem indices of variables in expression tree exprtree new expression tree, or NULL
Definition at line 2100 of file nlpioracle.c.
References BMSduplicateBlockMemoryArray, BMSfreeBlockMemoryArray, SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracleCons::exprvaridxs, FALSE, invalidateHessianLagSparsity(), invalidateJacobiSparsity(), NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPexprintCompile(), SCIPexprtreeCopy(), SCIPexprtreeFree(), and SCIPexprtreeGetNVars().
Referenced by SCIP_DECL_NLPICHGEXPRTREE().
◆ SCIPnlpiOracleChgExprParam()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgExprParam | ( | SCIP_NLPIORACLE * | oracle, |
int | considx, | ||
int | paramidx, | ||
SCIP_Real | paramval | ||
) |
changes one parameter of expression tree of one constraint or objective
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint where parameter should be changed in expression tree, or -1 for objective paramidx index of parameter paramval new value of parameter
Definition at line 2157 of file nlpioracle.c.
References NULL, SCIP_OKAY, SCIPdebugMessage, SCIPexprtreeGetNParams(), and SCIPexprtreeSetParamVal().
Referenced by SCIP_DECL_NLPICHGNONLINCOEF().
◆ SCIPnlpiOracleChgObjConstant()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleChgObjConstant | ( | SCIP_NLPIORACLE * | oracle, |
SCIP_Real | objconstant | ||
) |
changes the constant value in the objective function
- Parameters
-
oracle pointer to NLPIORACLE data structure objconstant new value for objective constant
Definition at line 2182 of file nlpioracle.c.
References NULL, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIP_DECL_NLPICHGOBJCONSTANT().
◆ SCIPnlpiOracleGetNVars()
SCIP_EXPORT int SCIPnlpiOracleGetNVars | ( | SCIP_NLPIORACLE * | oracle | ) |
gives the current number of variables
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2198 of file nlpioracle.c.
References NULL, and SCIP_NlpiOracle::nvars.
Referenced by computeInteriorPoint(), initWorhp(), processSolveOutcome(), SCIP_DECL_NLPIADDCONSTRAINTS(), SCIP_DECL_NLPIADDVARS(), SCIP_DECL_NLPICHGCONSSIDES(), SCIP_DECL_NLPISETINITIALGUESS(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), setupGradients(), setupHessian(), setupStart(), updateWorhp(), userDF(), userDG(), userF(), userG(), and userHM().
◆ SCIPnlpiOracleGetNConstraints()
SCIP_EXPORT int SCIPnlpiOracleGetNConstraints | ( | SCIP_NLPIORACLE * | oracle | ) |
gives the current number of constraints
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2208 of file nlpioracle.c.
References SCIP_NlpiOracle::nconss, and NULL.
Referenced by computeInteriorPoint(), initWorhp(), processSolveOutcome(), SCIP_DECL_NLPIADDCONSTRAINTS(), SCIP_DECL_NLPIADDVARS(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), setupGradients(), setupStart(), updateWorhp(), userDF(), userDG(), userF(), userG(), and userHM().
◆ SCIPnlpiOracleGetVarLbs()
SCIP_EXPORT const SCIP_Real* SCIPnlpiOracleGetVarLbs | ( | SCIP_NLPIORACLE * | oracle | ) |
gives the variables lower bounds
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2218 of file nlpioracle.c.
References NULL, and SCIP_NlpiOracle::varlbs.
Referenced by initWorhp(), SCIP_DECL_NLPICHGVARBOUNDS(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), setupStart(), and updateWorhp().
◆ SCIPnlpiOracleGetVarUbs()
SCIP_EXPORT const SCIP_Real* SCIPnlpiOracleGetVarUbs | ( | SCIP_NLPIORACLE * | oracle | ) |
gives the variables upper bounds
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2228 of file nlpioracle.c.
References NULL, and SCIP_NlpiOracle::varubs.
Referenced by initWorhp(), SCIP_DECL_NLPICHGVARBOUNDS(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), setupStart(), and updateWorhp().
◆ SCIPnlpiOracleGetVarNames()
SCIP_EXPORT char** SCIPnlpiOracleGetVarNames | ( | SCIP_NLPIORACLE * | oracle | ) |
gives the variables names, or NULL if not set
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2238 of file nlpioracle.c.
References NULL, and SCIP_NlpiOracle::varnames.
Referenced by SCIPsetModifiedDefaultSettingsIpopt().
◆ SCIPnlpiOracleGetVarDegree()
SCIP_EXPORT int SCIPnlpiOracleGetVarDegree | ( | SCIP_NLPIORACLE * | oracle, |
int | varidx | ||
) |
Gives maximum degree of a variable w.r.t. objective and all constraints. The degree of a variable is the degree of the summand where it appears in, and is infinity for nonpolynomial terms.
- Parameters
-
oracle pointer to NLPIORACLE data structure varidx index of variable which degree should be returned
Definition at line 2250 of file nlpioracle.c.
References NULL, updateVariableDegrees(), and SCIP_NlpiOracle::vardegrees.
Referenced by SCIPsetModifiedDefaultSettingsIpopt().
◆ SCIPnlpiOracleGetVarDegrees()
SCIP_EXPORT int* SCIPnlpiOracleGetVarDegrees | ( | SCIP_NLPIORACLE * | oracle | ) |
Gives maximum degree of all variables w.r.t. objective and all constraints. The degree of a variable is the degree of the summand where it appears in, and is infinity for nonpolynomial terms.
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2267 of file nlpioracle.c.
References NULL, updateVariableDegrees(), and SCIP_NlpiOracle::vardegrees.
◆ SCIPnlpiOracleGetConstraintLhs()
SCIP_EXPORT SCIP_Real SCIPnlpiOracleGetConstraintLhs | ( | SCIP_NLPIORACLE * | oracle, |
int | considx | ||
) |
gives left-hand side of a constraint
- Parameters
-
oracle pointer to NLPIORACLE data structure considx constraint index
Definition at line 2279 of file nlpioracle.c.
References SCIP_NlpiOracle::conss, SCIP_NlpiOracleCons::lhs, and NULL.
Referenced by initWorhp(), SCIP_DECL_NLPICHGCONSSIDES(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), and updateWorhp().
◆ SCIPnlpiOracleGetConstraintRhs()
SCIP_EXPORT SCIP_Real SCIPnlpiOracleGetConstraintRhs | ( | SCIP_NLPIORACLE * | oracle, |
int | considx | ||
) |
gives right-hand side of a constraint
- Parameters
-
oracle pointer to NLPIORACLE data structure considx constraint index
Definition at line 2292 of file nlpioracle.c.
References SCIP_NlpiOracle::conss, NULL, and SCIP_NlpiOracleCons::rhs.
Referenced by initWorhp(), SCIP_DECL_NLPICHGCONSSIDES(), SCIP_DECL_NLPISOLVE(), SCIPsetModifiedDefaultSettingsIpopt(), and updateWorhp().
◆ SCIPnlpiOracleGetConstraintName()
SCIP_EXPORT char* SCIPnlpiOracleGetConstraintName | ( | SCIP_NLPIORACLE * | oracle, |
int | considx | ||
) |
gives name of a constraint, may be NULL
- Parameters
-
oracle pointer to NLPIORACLE data structure considx constraint index
Definition at line 2305 of file nlpioracle.c.
References SCIP_NlpiOracle::conss, SCIP_NlpiOracleCons::name, and NULL.
Referenced by SCIPsetModifiedDefaultSettingsIpopt().
◆ SCIPnlpiOracleGetConstraintDegree()
SCIP_EXPORT int SCIPnlpiOracleGetConstraintDegree | ( | SCIP_NLPIORACLE * | oracle, |
int | considx | ||
) |
gives maximum degree of a constraint or objective The degree is the maximal degree of all summands,, and is infinity for nonpolynomial terms.
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint for which the degree is requested, or -1 for objective
Definition at line 2320 of file nlpioracle.c.
References SCIP_NlpiOracle::conss, SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracleCons::nlinidxs, SCIP_NlpiOracleCons::nquadelems, NULL, and SCIP_NlpiOracle::objective.
Referenced by computeInteriorPoint(), SCIP_DECL_NLPIADDCONSTRAINTS(), SCIP_DECL_NLPICHGEXPRTREE(), SCIP_DECL_NLPICHGQUADCOEFS(), SCIP_DECL_NLPISETOBJECTIVE(), SCIP_DECL_NLPISOLVE(), and SCIPsetModifiedDefaultSettingsIpopt().
◆ SCIPnlpiOracleGetMaxDegree()
SCIP_EXPORT int SCIPnlpiOracleGetMaxDegree | ( | SCIP_NLPIORACLE * | oracle | ) |
Gives maximum degree over all constraints and the objective (or over all variables, resp.). Thus, if this function returns 0, then the objective and all constraints are constant. If it returns 1, then the problem in linear. If it returns 2, then its a QP, QCP, or QCQP. And if it returns > 2, then it is an NLP.
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2352 of file nlpioracle.c.
References NULL, SCIPdebugMessage, and updateVariableDegrees().
Referenced by SCIP_DECL_NLPISOLVE().
◆ SCIPnlpiOracleGetEvalCapability()
SCIP_EXPORT SCIP_EXPRINTCAPABILITY SCIPnlpiOracleGetEvalCapability | ( | SCIP_NLPIORACLE * | oracle | ) |
Gives the evaluation capabilities that are shared among all expression trees in the problem.
- Parameters
-
oracle pointer to NLPIORACLE data structure
Definition at line 2378 of file nlpioracle.c.
References SCIP_NlpiOracle::conss, SCIP_NlpiOracle::exprinterpreter, SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracle::nconss, NULL, SCIP_NlpiOracle::objective, SCIP_EXPRINTCAPABILITY_ALL, and SCIPexprintGetExprtreeCapability().
Referenced by SCIP_DECL_NLPISOLVE().
◆ SCIPnlpiOracleEvalObjectiveValue()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalObjectiveValue | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real * | x, | ||
SCIP_Real * | objval | ||
) |
evaluates the objective function in a given point
- Parameters
-
oracle pointer to NLPIORACLE data structure x point where to evaluate objval pointer to store objective value
Definition at line 2400 of file nlpioracle.c.
References evalFunctionValue(), NULL, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by F77_FUNC(), SCIP_DECL_NLPIGETSOLUTION(), SCIPsetModifiedDefaultSettingsIpopt(), setupStart(), and userF().
◆ SCIPnlpiOracleEvalConstraintValue()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalConstraintValue | ( | SCIP_NLPIORACLE * | oracle, |
int | considx, | ||
const SCIP_Real * | x, | ||
SCIP_Real * | conval | ||
) |
evaluates one constraint function in a given point
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint to evaluate x point where to evaluate conval pointer to store constraint value
Definition at line 2419 of file nlpioracle.c.
References evalFunctionValue(), NULL, SCIP_NlpiOracle::nvars, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by F77_FUNC(), and setupStart().
◆ SCIPnlpiOracleEvalConstraintValues()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalConstraintValues | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real * | x, | ||
SCIP_Real * | convals | ||
) |
evaluates all constraint functions in a given point
- Parameters
-
oracle pointer to NLPIORACLE data structure x point where to evaluate convals buffer to store constraint values
Definition at line 2438 of file nlpioracle.c.
References evalFunctionValue(), NULL, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIPsetModifiedDefaultSettingsIpopt(), and userG().
◆ SCIPnlpiOracleEvalObjectiveGradient()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalObjectiveGradient | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real * | x, | ||
SCIP_Bool | isnewx, | ||
SCIP_Real * | objval, | ||
SCIP_Real * | objgrad | ||
) |
computes the objective gradient in a given point
- Returns
- SCIP_INVALIDDATA, if the function or its gradient could not be evaluated (domain error, etc.)
- Parameters
-
oracle pointer to NLPIORACLE data structure x point where to evaluate isnewx has the point x changed since the last call to some evaluation function? objval pointer to store objective value objgrad pointer to store (dense) objective gradient
Definition at line 2464 of file nlpioracle.c.
References evalFunctionGradient(), NULL, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by F77_FUNC(), SCIPsetModifiedDefaultSettingsIpopt(), setupStart(), and userDF().
◆ SCIPnlpiOracleEvalConstraintGradient()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalConstraintGradient | ( | SCIP_NLPIORACLE * | oracle, |
const int | considx, | ||
const SCIP_Real * | x, | ||
SCIP_Bool | isnewx, | ||
SCIP_Real * | conval, | ||
SCIP_Real * | congrad | ||
) |
computes a constraints gradient in a given point
- Returns
- SCIP_INVALIDDATA, if the function or its gradient could not be evaluated (domain error, etc.)
- Parameters
-
oracle pointer to NLPIORACLE data structure considx index of constraint to compute gradient for x point where to evaluate isnewx has the point x changed since the last call to some evaluation function? conval pointer to store constraint value congrad pointer to store (dense) constraint gradient
Definition at line 2488 of file nlpioracle.c.
References evalFunctionGradient(), NULL, SCIP_NlpiOracle::nvars, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by SCIPnlpiOracleEvalJacobian().
◆ SCIPnlpiOracleGetJacobianSparsity()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleGetJacobianSparsity | ( | SCIP_NLPIORACLE * | oracle, |
const int ** | offset, | ||
const int ** | col | ||
) |
gets sparsity pattern (rowwise) of Jacobian matrix
Note that internal data is returned in *offset and *col, thus the user does not need to allocate memory there. Adding or deleting constraints destroys the sparsity structure and make another call to this function necessary.
- Parameters
-
oracle pointer to NLPIORACLE data structure offset pointer to store pointer that stores the offsets to each rows sparsity pattern in col, can be NULL col pointer to store pointer that stores the indices of variables that appear in each row, offset[nconss] gives length of col, can be NULL
Definition at line 2513 of file nlpioracle.c.
References BMSallocBlockMemoryArray, BMSclearMemoryArray, BMScopyMemoryArray, BMSfreeBlockMemoryArray, BMSreallocBlockMemoryArray, ensureIntArraySize(), SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracleCons::exprvaridxs, FALSE, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, SCIP_NlpiOracleCons::linidxs, SCIP_NlpiOracleCons::nlinidxs, SCIP_NlpiOracleCons::nquadelems, NULL, SCIP_NlpiOracleCons::quadelems, SCIP_ALLOC, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPexprtreeGetNVars(), and TRUE.
Referenced by initWorhp(), SCIPsetModifiedDefaultSettingsIpopt(), and setupGradients().
◆ SCIPnlpiOracleEvalJacobian()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalJacobian | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real * | x, | ||
SCIP_Bool | isnewx, | ||
SCIP_Real * | convals, | ||
SCIP_Real * | jacobi | ||
) |
evaluates the Jacobi matrix in a given point
The values in the Jacobi matrix are returned in the same order as specified by the offset and col arrays obtained by SCIPnlpiOracleGetJacobianSparsity. The user need to call SCIPnlpiOracleGetJacobianSparsity at least ones before using this function.
- Returns
- SCIP_INVALIDDATA, if the Jacobian could not be evaluated (domain error, etc.)
- Parameters
-
oracle pointer to NLPIORACLE data structure x point where to evaluate isnewx has the point x changed since the last call to some evaluation function? convals pointer to store constraint values, can be NULL jacobi pointer to store sparse jacobian values
Definition at line 2654 of file nlpioracle.c.
References BMSallocBlockMemoryArray, BMScopyMemoryArray, BMSfreeBlockMemoryArray, BMSfreeBlockMemoryArrayNull, SCIP_NlpiOracleCons::exprtree, SCIP_NlpiOracleCons::exprvaridxs, SCIP_NlpiOracleCons::lincoefs, SCIP_NlpiOracleCons::nlinidxs, SCIP_NlpiOracleCons::nquadelems, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIPdebug, SCIPdebugMessage, SCIPexprintEval(), SCIPexprintGrad(), SCIPexprtreeGetNVars(), SCIPisFinite, and SCIPnlpiOracleEvalConstraintGradient().
Referenced by F77_FUNC(), SCIPsetModifiedDefaultSettingsIpopt(), setupStart(), and userDG().
◆ SCIPnlpiOracleGetHessianLagSparsity()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleGetHessianLagSparsity | ( | SCIP_NLPIORACLE * | oracle, |
const int ** | offset, | ||
const int ** | col | ||
) |
gets sparsity pattern of the Hessian matrix of the Lagrangian
Note that internal data is returned in *offset and *col, thus the user must not to allocate memory there. Adding or deleting variables, objective, or constraints may destroy the sparsity structure and make another call to this function necessary. Only elements of the lower left triangle and the diagonal are counted.
gets sparsity pattern of the Hessian matrix of the Lagrangian
Note that internal data is returned in *offset and *col, thus the user must not allocate memory there. Adding or deleting variables, objective, or constraints may destroy the sparsity structure and make another call to this function necessary. Only elements of the lower left triangle and the diagonal are counted.
- Parameters
-
oracle pointer to NLPIORACLE data structure offset pointer to store pointer that stores the offsets to each rows sparsity pattern in col, can be NULL col pointer to store pointer that stores the indices of variables that appear in each row, offset[nconss] gives length of col, can be NULL
Definition at line 2793 of file nlpioracle.c.
References BMSallocBlockMemoryArray, BMSclearMemoryArray, BMSfreeBlockMemoryArray, BMSfreeBlockMemoryArrayNull, hessLagSparsitySetNzFlagForExprtree(), hessLagSparsitySetNzFlagForQuad(), NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, and SCIPdebugMessage.
Referenced by initWorhp(), SCIPsetModifiedDefaultSettingsIpopt(), setupHessian(), and userHM().
◆ SCIPnlpiOracleEvalHessianLag()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOracleEvalHessianLag | ( | SCIP_NLPIORACLE * | oracle, |
const SCIP_Real * | x, | ||
SCIP_Bool | isnewx, | ||
SCIP_Real | objfactor, | ||
const SCIP_Real * | lambda, | ||
SCIP_Real * | hessian | ||
) |
evaluates the Hessian matrix of the Lagrangian in a given point
The values in the Hessian matrix are returned in the same order as specified by the offset and col arrays obtained by SCIPnlpiOracleGetHessianLagSparsity. The user must call SCIPnlpiOracleGetHessianLagSparsity at least ones before using this function. Only elements of the lower left triangle and the diagonal are computed.
- Returns
- SCIP_INVALIDDATA, if the Hessian could not be evaluated (domain error, etc.)
- Parameters
-
oracle pointer to NLPIORACLE data structure x point where to evaluate isnewx has the point x changed since the last call to some evaluation function? objfactor weight for objective function lambda weights (Lagrangian multipliers) for the constraints hessian pointer to store sparse hessian values
Definition at line 2892 of file nlpioracle.c.
References SCIP_NlpiOracle::heslagcols, SCIP_NlpiOracle::heslagoffsets, hessLagAddExprtree(), hessLagAddQuad(), SCIP_NlpiOracle::nconss, NULL, SCIP_CALL, SCIP_CALL_QUIET, SCIP_OKAY, and SCIPdebugMessage.
Referenced by F77_FUNC(), SCIPsetModifiedDefaultSettingsIpopt(), and userHM().
◆ SCIPnlpiOraclePrintProblem()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOraclePrintProblem | ( | SCIP_NLPIORACLE * | oracle, |
SCIP_MESSAGEHDLR * | messagehdlr, | ||
FILE * | file | ||
) |
prints the problem to a file.
- Parameters
-
oracle pointer to NLPIORACLE data structure messagehdlr message handler file file to print to, or NULL for standard output
Definition at line 2935 of file nlpioracle.c.
References FALSE, infinity, SCIP_NlpiOracleCons::lhs, NULL, printFunction(), SCIP_NlpiOracleCons::rhs, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPdebugMessage, and SCIPmessageFPrintInfo().
Referenced by computeInteriorPoint(), and SCIP_DECL_NLPISOLVE().
◆ SCIPnlpiOraclePrintProblemGams()
SCIP_EXPORT SCIP_RETCODE SCIPnlpiOraclePrintProblemGams | ( | SCIP_NLPIORACLE * | oracle, |
SCIP_Real * | initval, | ||
SCIP_MESSAGEHDLR * | messagehdlr, | ||
FILE * | file | ||
) |
prints the problem to a file in GAMS format If there are variable (equation, resp.) names with more than 9 characters, then variable (equation, resp.) names are prefixed with an unique identifier. This is to make it easier to identify variables solution output in the listing file. Names with more than 64 characters are shorten to 64 letters due to GAMS limits.
- Parameters
-
oracle pointer to NLPIORACLE data structure initval starting point values for variables or NULL messagehdlr message handler file file to print to, or NULL for standard output
Definition at line 3004 of file nlpioracle.c.
References exprIsNonSmooth(), SCIP_NlpiOracleCons::exprtree, FALSE, infinity, SCIP_NlpiOracleCons::lhs, SCIP_NlpiOracleCons::name, SCIP_NlpiOracleCons::nquadelems, NULL, printFunction(), printName(), SCIP_NlpiOracleCons::rhs, SCIP_Bool, SCIP_CALL, SCIP_MAXSTRLEN, SCIP_OKAY, SCIP_Real, SCIPdebugMessage, SCIPexprtreeGetRoot(), SCIPmessageFPrintInfo(), SCIPsnprintf(), and TRUE.