Detailed Description
internal methods for NLP management
Definition in file nlp.h.
#include <stdio.h>
#include "scip/def.h"
#include "blockmemshell/memory.h"
#include "scip/type_event.h"
#include "scip/type_set.h"
#include "scip/type_stat.h"
#include "scip/type_misc.h"
#include "scip/type_lp.h"
#include "scip/type_var.h"
#include "scip/type_prob.h"
#include "scip/type_sol.h"
#include "scip/type_primal.h"
#include "scip/pub_nlp.h"
Go to the source code of this file.
Function Documentation
◆ SCIPexprtreeRemoveFixedVars()
SCIP_RETCODE SCIPexprtreeRemoveFixedVars | ( | SCIP_EXPRTREE * | tree, |
SCIP_SET * | set, | ||
SCIP_Bool * | changed, | ||
int * | varpos, | ||
int * | newvarsstart | ||
) |
removes fixed variables from an expression tree, so that at exit all variables are active
- Parameters
-
tree expression tree set global SCIP settings changed buffer to store whether the tree was changed, i.e., whether there was a fixed variable varpos array of length at least tree->nvars to store new indices of previously existing variables in expression tree, or -1 if variable was removed; set to NULL if not of interest newvarsstart buffer to store index in tree->vars array where new variables begin, or NULL if not of interest
Definition at line 225 of file nlp.c.
References SCIP_ExprTree::blkmem, BMSallocBlockMemoryArray, BMSclearMemoryArray, BMSfreeBlockMemoryArray, BMSreallocBlockMemoryArray, FALSE, NULL, SCIP_ExprTree::nvars, SCIP_ExprTree::root, SCIP_ALLOC, SCIP_Bool, SCIP_CALL, SCIP_EXPR_CONST, SCIP_EXPR_VARIDX, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_MULTAGGR, SCIPexprCreate(), SCIPexprCreateLinear(), SCIPexprFreeDeep(), SCIPexprReindexVars(), SCIPexprtreeAddVars(), SCIPexprtreeRemoveFixedVars(), SCIPexprtreeSubstituteVars(), SCIPhashmapCreate(), SCIPhashmapExists(), SCIPhashmapFree(), SCIPhashmapGetImageInt(), SCIPhashmapInsertInt(), SCIPvarGetMultaggrConstant(), SCIPvarGetMultaggrNVars(), SCIPvarGetMultaggrScalars(), SCIPvarGetMultaggrVars(), SCIPvarGetProbvarSum(), SCIPvarGetStatus(), SCIPvarIsActive(), TRUE, and SCIP_ExprTree::vars.
Referenced by nlrowRemoveFixedExprtreeVars(), SCIPexprtreeRemoveFixedVars(), and SCIPnlrowChgExprtree().
◆ SCIPnlrowCreate()
SCIP_RETCODE SCIPnlrowCreate | ( | SCIP_NLROW ** | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
const char * | name, | ||
SCIP_Real | constant, | ||
int | nlinvars, | ||
SCIP_VAR ** | linvars, | ||
SCIP_Real * | lincoefs, | ||
int | nquadvars, | ||
SCIP_VAR ** | quadvars, | ||
int | nquadelems, | ||
SCIP_QUADELEM * | quadelems, | ||
SCIP_EXPRTREE * | exprtree, | ||
SCIP_Real | lhs, | ||
SCIP_Real | rhs, | ||
SCIP_EXPRCURV | curvature | ||
) |
create a new nonlinear row the new row is already captured
- Parameters
-
nlrow buffer to store pointer to nonlinear row blkmem block memory set global SCIP settings name name of nonlinear row constant constant nlinvars number of linear variables linvars linear variables, or NULL if nlinvars == 0 lincoefs linear coefficients, or NULL if nlinvars == 0 nquadvars number of variables in quadratic terms quadvars variables in quadratic terms, or NULL if nquadvars == 0 nquadelems number of entries in quadratic term matrix quadelems elements of quadratic term matrix, or NULL if nquadelems == 0 exprtree expression tree, or NULL lhs left hand side rhs right hand side curvature curvature of the nonlinear row
Definition at line 2007 of file nlp.c.
References BMSallocBlockMemory, BMSduplicateBlockMemoryArray, FALSE, MAX, nlrowSetupQuadVarsHash(), NULL, REALABS, SCIP_ALLOC, SCIP_CALL, SCIP_INVALID, SCIP_OKAY, SCIPexprtreeCopy(), SCIPnlrowCapture(), SCIPsetIsInfinity(), SCIPsetIsRelLE(), and TRUE.
Referenced by SCIPcreateEmptyNlRow(), SCIPcreateNlRow(), SCIPnlpChgVarObjDive(), SCIPnlrowCreateCopy(), and SCIPnlrowCreateFromRow().
◆ SCIPnlrowCreateCopy()
SCIP_RETCODE SCIPnlrowCreateCopy | ( | SCIP_NLROW ** | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_NLROW * | sourcenlrow | ||
) |
create a nonlinear row that is a copy of a given row the new row is already captured
- Parameters
-
nlrow buffer to store pointer to nonlinear row blkmem block memory set global SCIP settings sourcenlrow nonlinear row to copy
Definition at line 2156 of file nlp.c.
References SCIP_NlRow::activity, SCIP_NlRow::constant, SCIP_NlRow::curvature, SCIP_NlRow::exprtree, SCIP_NlRow::lhs, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, SCIP_NlRow::linvarssorted, SCIP_NlRow::maxactivity, SCIP_NlRow::minactivity, SCIP_NlRow::name, SCIP_NlRow::nlinvars, SCIP_NlRow::nquadelems, SCIP_NlRow::nquadvars, NULL, SCIP_NlRow::pseudoactivity, SCIP_NlRow::quadelems, SCIP_NlRow::quadelemssorted, SCIP_NlRow::quadvars, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIPnlrowCreate(), SCIP_NlRow::validactivitybdsdomchg, SCIP_NlRow::validactivitynlp, and SCIP_NlRow::validpsactivitydomchg.
◆ SCIPnlrowCreateFromRow()
SCIP_RETCODE SCIPnlrowCreateFromRow | ( | SCIP_NLROW ** | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_ROW * | row | ||
) |
create a new nonlinear row from a linear row the new row is already captured
- Parameters
-
nlrow buffer to store pointer to nonlinear row blkmem block memory set global SCIP settings row the linear row to copy
Definition at line 2191 of file nlp.c.
References NULL, SCIP_CALL, SCIP_EXPRCURV_LINEAR, SCIP_OKAY, SCIPcolGetVar(), SCIPnlrowCreate(), SCIProwGetCols(), SCIProwGetConstant(), SCIProwGetLhs(), SCIProwGetName(), SCIProwGetNNonz(), SCIProwGetRhs(), SCIProwGetVals(), SCIPsetAllocBufferArray, and SCIPsetFreeBufferArray.
Referenced by SCIPcreateNlRowFromRow().
◆ SCIPnlrowFree()
SCIP_RETCODE SCIPnlrowFree | ( | SCIP_NLROW ** | nlrow, |
BMS_BLKMEM * | blkmem | ||
) |
frees a nonlinear row
- Parameters
-
nlrow pointer to NLP row blkmem block memory
Definition at line 2259 of file nlp.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArray, BMSfreeBlockMemoryArrayNull, NULL, SCIP_CALL, SCIP_OKAY, SCIPexprtreeFree(), and SCIPhashmapFree().
Referenced by SCIPnlrowRelease().
◆ SCIPnlrowPrint()
SCIP_RETCODE SCIPnlrowPrint | ( | SCIP_NLROW * | nlrow, |
SCIP_MESSAGEHDLR * | messagehdlr, | ||
FILE * | file | ||
) |
output nonlinear row to file stream
- Parameters
-
nlrow NLP row messagehdlr message handler file output file (or NULL for standard output)
Definition at line 2296 of file nlp.c.
References SCIP_QuadElement::coef, SCIP_NlRow::constant, SCIP_NlRow::exprtree, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, SCIP_NlRow::lhs, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, SCIP_NlRow::name, SCIP_NlRow::nlinvars, SCIP_NlRow::nquadelems, NULL, SCIP_NlRow::quadelems, SCIP_NlRow::quadvars, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIPexprtreePrintWithNames(), SCIPmessageFPrintInfo(), and SCIPvarGetName().
Referenced by computeCut(), findAndStoreEcAggregations(), SCIPnlpWrite(), and SCIPprintNlRow().
◆ SCIPnlrowCapture()
void SCIPnlrowCapture | ( | SCIP_NLROW * | nlrow | ) |
increases usage counter of NLP nonlinear row
- Parameters
-
nlrow nonlinear row to capture
Definition at line 2351 of file nlp.c.
References SCIP_NlRow::name, NULL, SCIP_NlRow::nuses, and SCIPdebugMessage.
Referenced by nlpAddNlRows(), SCIPcaptureNlRow(), and SCIPnlrowCreate().
◆ SCIPnlrowRelease()
SCIP_RETCODE SCIPnlrowRelease | ( | SCIP_NLROW ** | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set | ||
) |
decreases usage counter of NLP nonlinear row
- Parameters
-
nlrow nonlinear row to free blkmem block memory set global SCIP settings
Definition at line 2363 of file nlp.c.
References NULL, SCIP_CALL, SCIP_OKAY, SCIPnlrowFree(), and SCIPsetDebugMsg.
Referenced by nlpDelNlRowPos(), SCIPnlpEndDive(), and SCIPreleaseNlRow().
◆ SCIPnlrowEnsureLinearSize()
SCIP_RETCODE SCIPnlrowEnsureLinearSize | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | num | ||
) |
ensures, that linear coefficient array of nonlinear row can store at least num entries
- Parameters
-
nlrow NLP row blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 2387 of file nlp.c.
References BMSreallocBlockMemoryArray, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, SCIP_NlRow::linvarssize, SCIP_NlRow::nlinvars, NULL, SCIP_ALLOC, SCIP_OKAY, and SCIPsetCalcMemGrowSize().
Referenced by nlrowAddLinearCoef(), and nlrowRemoveFixedLinearCoefPos().
◆ SCIPnlrowAddLinearCoef()
SCIP_RETCODE SCIPnlrowAddLinearCoef | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_VAR * | var, | ||
SCIP_Real | val | ||
) |
adds a previously non existing linear coefficient to an NLP nonlinear row
- Parameters
-
nlrow NLP nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data var variable val value of coefficient
Definition at line 2412 of file nlp.c.
References SCIP_NlRow::constant, SCIP_NlRow::nlpindex, nlrowAddLinearCoef(), SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIP_VARSTATUS_MULTAGGR, SCIPnlrowAddLinearCoef(), SCIPnlrowChgConstant(), SCIPvarGetMultaggrNVars(), SCIPvarGetMultaggrScalars(), SCIPvarGetMultaggrVars(), SCIPvarGetProbvarSum(), SCIPvarGetStatus(), and SCIPvarIsActive().
Referenced by SCIPaddLinearCoefsToNlRow(), SCIPaddLinearCoefToNlRow(), and SCIPnlrowAddLinearCoef().
◆ SCIPnlrowDelLinearCoef()
SCIP_RETCODE SCIPnlrowDelLinearCoef | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_VAR * | var | ||
) |
deletes linear coefficient from nonlinear row
- Parameters
-
nlrow nonlinear row to be changed set global SCIP settings stat problem statistics data nlp current NLP data var coefficient to be deleted
Definition at line 2460 of file nlp.c.
References SCIP_NlRow::linvars, SCIP_NlRow::name, SCIP_NlRow::nlpindex, nlrowDelLinearCoefPos(), nlrowSearchLinearCoef(), NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPerrorMessage, SCIPvarGetName(), and SCIPvarIsActive().
◆ SCIPnlrowChgLinearCoef()
SCIP_RETCODE SCIPnlrowChgLinearCoef | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_VAR * | var, | ||
SCIP_Real | coef | ||
) |
changes or adds a linear coefficient to a nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data var variable coef new value of coefficient
Definition at line 2493 of file nlp.c.
References nlrowAddLinearCoef(), nlrowChgLinearCoefPos(), nlrowSearchLinearCoef(), NULL, SCIP_CALL, SCIP_OKAY, and SCIPsetIsZero().
Referenced by SCIPchgNlRowLinearCoef(), and SCIPnlpChgVarObjDive().
◆ SCIPnlrowEnsureQuadVarsSize()
SCIP_RETCODE SCIPnlrowEnsureQuadVarsSize | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | num | ||
) |
ensures, that quadratic variables array of nonlinear row can store at least num entries
- Parameters
-
nlrow NLP row blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 2531 of file nlp.c.
References BMSreallocBlockMemoryArray, SCIP_NlRow::nquadvars, NULL, SCIP_NlRow::quadvars, SCIP_NlRow::quadvarssize, SCIP_ALLOC, SCIP_OKAY, and SCIPsetCalcMemGrowSize().
Referenced by SCIPaddQuadVarsToNlRow(), and SCIPnlrowAddQuadVar().
◆ SCIPnlrowAddQuadVar()
SCIP_RETCODE SCIPnlrowAddQuadVar | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_VAR * | var | ||
) |
adds variable to quadvars array of row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings var variable to search for
Definition at line 2555 of file nlp.c.
References SCIP_NlRow::nlpindex, nlrowSetupQuadVarsHash(), SCIP_NlRow::nquadvars, NULL, SCIP_NlRow::quadvars, SCIP_NlRow::quadvarshash, SCIP_CALL, SCIP_OKAY, SCIPhashmapInsertInt(), SCIPnlrowEnsureQuadVarsSize(), SCIPnlrowSearchQuadVar(), and SCIPvarIsActive().
Referenced by nlrowRemoveFixedQuadVars(), SCIPaddQuadVarsToNlRow(), and SCIPaddQuadVarToNlRow().
◆ SCIPnlrowEnsureQuadElementsSize()
SCIP_RETCODE SCIPnlrowEnsureQuadElementsSize | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | num | ||
) |
ensures, that quadratic elements array of nonlinear row can store at least num entries
- Parameters
-
nlrow NLP row blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 2590 of file nlp.c.
References BMSreallocBlockMemoryArray, SCIP_NlRow::nquadelems, NULL, SCIP_NlRow::quadelems, SCIP_NlRow::quadelemssize, SCIP_ALLOC, SCIP_OKAY, and SCIPsetCalcMemGrowSize().
Referenced by nlrowAddQuadElement(), and SCIPaddQuadElementsToNlRow().
◆ SCIPnlrowAddQuadElement()
SCIP_RETCODE SCIPnlrowAddQuadElement | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_QUADELEM | elem | ||
) |
adds a previously non existing quadratic element to an NLP nonlinear row
- Parameters
-
nlrow NLP nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data elem quadratic element to add
Definition at line 2614 of file nlp.c.
References nlrowAddQuadElement(), SCIP_CALL, and SCIP_OKAY.
Referenced by nlrowRemoveFixedQuadVars(), SCIPaddQuadElementsToNlRow(), and SCIPaddQuadElementToNlRow().
◆ SCIPnlrowDelQuadElement()
SCIP_RETCODE SCIPnlrowDelQuadElement | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
int | idx1, | ||
int | idx2 | ||
) |
deletes quadratic element from nonlinear row
- Parameters
-
nlrow nonlinear row to be changed set global SCIP settings stat problem statistics data nlp current NLP data idx1 index of first variable in element idx2 index of second variable in element
Definition at line 2629 of file nlp.c.
References SCIP_NlRow::name, nlrowDelQuadElemPos(), nlrowSearchQuadElem(), NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, and SCIPerrorMessage.
◆ SCIPnlrowChgQuadElem()
SCIP_RETCODE SCIPnlrowChgQuadElem | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_QUADELEM | elem | ||
) |
changes or adds a quadratic element to a nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data elem new quadratic element
Definition at line 2663 of file nlp.c.
References SCIP_QuadElement::coef, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, nlrowAddQuadElement(), nlrowChgQuadElemPos(), nlrowSearchQuadElem(), NULL, SCIP_CALL, and SCIP_OKAY.
Referenced by SCIPchgNlRowQuadElement().
◆ SCIPnlrowChgExprtree()
SCIP_RETCODE SCIPnlrowChgExprtree | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_EXPRTREE * | exprtree | ||
) |
replaces or deletes an expression tree in nonlinear row
replaces an expression tree in nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data exprtree new expression tree
Definition at line 2695 of file nlp.c.
References SCIP_NlRow::exprtree, SCIP_NlRow::nlpindex, nlrowExprtreeChanged(), NULL, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPexprtreeCopy(), SCIPexprtreeFree(), and SCIPexprtreeRemoveFixedVars().
Referenced by SCIPsetNlRowExprtree().
◆ SCIPnlrowChgExprtreeParam()
SCIP_RETCODE SCIPnlrowChgExprtreeParam | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
int | paramidx, | ||
SCIP_Real | paramval | ||
) |
changes a parameter in an expression of a nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data paramidx index of parameter in expression tree's parameter array paramval new value of parameter
Definition at line 2734 of file nlp.c.
References SCIP_NlRow::exprtree, nlrowExprtreeParamChanged(), NULL, SCIP_CALL, SCIP_OKAY, and SCIPexprtreeSetParamVal().
Referenced by SCIPsetNlRowExprtreeParam().
◆ SCIPnlrowChgExprtreeParams()
SCIP_RETCODE SCIPnlrowChgExprtreeParams | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real * | paramvals | ||
) |
changes all parameters in an expression of a nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data paramvals new values of parameters
Definition at line 2757 of file nlp.c.
References SCIP_NlRow::exprtree, nlrowExprtreeParamChanged(), NULL, SCIP_CALL, SCIP_OKAY, SCIPexprtreeGetNParams(), and SCIPexprtreeSetParams().
Referenced by SCIPsetNlRowExprtreeParams().
◆ SCIPnlrowChgConstant()
SCIP_RETCODE SCIPnlrowChgConstant | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real | constant | ||
) |
changes constant of nonlinear row
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data nlp current NLP data constant new constant
Definition at line 2779 of file nlp.c.
References SCIP_NlRow::constant, nlrowConstantChanged(), NULL, SCIP_CALL, SCIP_OKAY, and SCIPsetIsEQ().
Referenced by nlrowRemoveFixedExprtreeVars(), SCIPchgNlRowConstant(), and SCIPnlrowAddLinearCoef().
◆ SCIPnlrowChgLhs()
SCIP_RETCODE SCIPnlrowChgLhs | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real | lhs | ||
) |
changes left hand side of nonlinear row
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data nlp current NLP data lhs new left hand side
Definition at line 2799 of file nlp.c.
References SCIP_NlRow::lhs, nlrowSideChanged(), NULL, SCIP_CALL, SCIP_OKAY, and SCIPsetIsEQ().
Referenced by SCIPchgNlRowLhs().
◆ SCIPnlrowChgRhs()
SCIP_RETCODE SCIPnlrowChgRhs | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real | rhs | ||
) |
changes right hand side of nonlinear row
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data nlp current NLP data rhs new right hand side
Definition at line 2819 of file nlp.c.
References nlrowSideChanged(), NULL, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, and SCIPsetIsEQ().
Referenced by SCIPchgNlRowRhs().
◆ SCIPnlrowRemoveFixedVars()
SCIP_RETCODE SCIPnlrowRemoveFixedVars | ( | SCIP_NLROW * | nlrow, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp | ||
) |
removes (or substitutes) all fixed, negated, aggregated, multi-aggregated variables from the linear, quadratic, and nonquadratic terms of a nonlinear row
removes (or substitutes) all fixed, negated, aggregated, multi-aggregated variables from the linear, quadratic, and non-quadratic terms of a nonlinear row
- Parameters
-
nlrow nonlinear row blkmem block memory set global SCIP settings stat problem statistics data nlp current NLP data
Definition at line 2839 of file nlp.c.
References nlrowRemoveFixedExprtreeVars(), nlrowRemoveFixedLinearCoefs(), nlrowRemoveFixedQuadVars(), SCIP_CALL, and SCIP_OKAY.
Referenced by nlpAddNlRows().
◆ SCIPnlrowRecalcNLPActivity()
SCIP_RETCODE SCIPnlrowRecalcNLPActivity | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp | ||
) |
recalculates the current activity of a nonlinear row in the current NLP solution
recalculates the current activity of a nonlinear row
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics nlp current NLP data
Definition at line 2855 of file nlp.c.
References SCIP_NlRow::activity, SCIP_QuadElement::coef, SCIP_NlRow::constant, SCIP_NlRow::exprtree, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, SCIP_NlRow::nlinvars, SCIP_Stat::nnlps, SCIP_NlRow::nquadelems, NULL, SCIP_NlRow::quadelems, SCIP_NlRow::quadvars, SCIP_CALL, SCIP_ERROR, SCIP_INVALID, SCIP_NLPSOLSTAT_LOCINFEASIBLE, SCIP_OKAY, SCIP_Real, SCIPerrorMessage, SCIPexprtreeEval(), SCIPexprtreeGetNVars(), SCIPexprtreeGetVars(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPvarGetNLPSol(), SCIP_Nlp::solstat, and SCIP_NlRow::validactivitynlp.
Referenced by SCIPnlrowGetNLPActivity(), SCIPrecalcNlRowActivity(), and SCIPrecalcNlRowNLPActivity().
◆ SCIPnlrowGetNLPActivity()
SCIP_RETCODE SCIPnlrowGetNLPActivity | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real * | activity | ||
) |
gives the activity of a nonlinear row in the current NLP solution
returns the activity of a nonlinear row in the current NLP solution
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics nlp current NLP data activity buffer to store activity value
Definition at line 2932 of file nlp.c.
References SCIP_NlRow::activity, SCIP_Stat::nnlps, NULL, SCIP_CALL, SCIP_INVALID, SCIP_OKAY, SCIPnlrowRecalcNLPActivity(), and SCIP_NlRow::validactivitynlp.
Referenced by nlpSolve(), SCIPgetNlRowActivity(), SCIPgetNlRowNLPActivity(), SCIPgetNlRowSolActivity(), and SCIPnlrowGetNLPFeasibility().
◆ SCIPnlrowGetNLPFeasibility()
SCIP_RETCODE SCIPnlrowGetNLPFeasibility | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLP * | nlp, | ||
SCIP_Real * | feasibility | ||
) |
gives the feasibility of a nonlinear row in the current NLP solution: negative value means infeasibility
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics nlp current NLP data feasibility buffer to store feasibility value
Definition at line 2959 of file nlp.c.
References SCIP_NlRow::lhs, NULL, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIP_Real, and SCIPnlrowGetNLPActivity().
Referenced by nlpAddNlRows(), nlpRowChanged(), SCIPgetNlRowFeasibility(), SCIPgetNlRowNLPFeasibility(), and SCIPgetNlRowSolFeasibility().
◆ SCIPnlrowRecalcPseudoActivity()
SCIP_RETCODE SCIPnlrowRecalcPseudoActivity | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat | ||
) |
calculates the current pseudo activity of a nonlinear row
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics
Definition at line 2979 of file nlp.c.
References SCIP_QuadElement::coef, SCIP_NlRow::constant, SCIP_Stat::domchgcount, SCIP_NlRow::exprtree, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, SCIP_NlRow::nlinvars, SCIP_NlRow::nquadelems, NULL, SCIP_NlRow::pseudoactivity, SCIP_NlRow::quadelems, SCIP_NlRow::quadvars, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPexprtreeEval(), SCIPexprtreeGetNVars(), SCIPexprtreeGetVars(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPvarGetBestBoundLocal(), and SCIP_NlRow::validpsactivitydomchg.
Referenced by SCIPnlrowGetPseudoActivity(), SCIPrecalcNlRowActivity(), and SCIPrecalcNlRowPseudoActivity().
◆ SCIPnlrowGetPseudoActivity()
SCIP_RETCODE SCIPnlrowGetPseudoActivity | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_Real * | pseudoactivity | ||
) |
returns the pseudo activity of a nonlinear row in the current pseudo solution
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics pseudoactivity buffer to store pseudo activity value
Definition at line 3034 of file nlp.c.
References SCIP_Stat::domchgcount, NULL, SCIP_NlRow::pseudoactivity, SCIP_CALL, SCIP_INVALID, SCIP_OKAY, SCIPnlrowRecalcPseudoActivity(), and SCIP_NlRow::validpsactivitydomchg.
Referenced by SCIPgetNlRowActivity(), SCIPgetNlRowPseudoActivity(), SCIPgetNlRowSolActivity(), SCIPnlpGetPseudoObjval(), and SCIPnlrowGetPseudoFeasibility().
◆ SCIPnlrowGetPseudoFeasibility()
SCIP_RETCODE SCIPnlrowGetPseudoFeasibility | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_Real * | pseudofeasibility | ||
) |
returns the pseudo feasibility of a nonlinear row in the current pseudo solution: negative value means infeasibility
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics pseudofeasibility buffer to store pseudo feasibility value
Definition at line 3060 of file nlp.c.
References SCIP_NlRow::lhs, NULL, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIP_Real, and SCIPnlrowGetPseudoActivity().
Referenced by SCIPgetNlRowFeasibility(), SCIPgetNlRowPseudoFeasibility(), and SCIPgetNlRowSolFeasibility().
◆ SCIPnlrowGetSolActivity()
SCIP_RETCODE SCIPnlrowGetSolActivity | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_SOL * | sol, | ||
SCIP_Real * | activity | ||
) |
returns the activity of a nonlinear row for a given solution
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data sol primal CIP solution activity buffer to store activity value
Definition at line 3080 of file nlp.c.
References SCIP_QuadElement::coef, SCIP_NlRow::constant, SCIP_NlRow::exprtree, SCIP_QuadElement::idx1, SCIP_QuadElement::idx2, SCIP_Interval::inf, SCIP_NlRow::lincoefs, SCIP_NlRow::linvars, MAX, SCIP_NlRow::nlinvars, SCIP_NlRow::nquadelems, NULL, SCIP_NlRow::quadelems, SCIP_NlRow::quadvars, SCIP_CALL, SCIP_INVALID, SCIP_OKAY, SCIP_Real, SCIP_UNKNOWN, SCIPexprtreeEval(), SCIPexprtreeGetNVars(), SCIPexprtreeGetVars(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPsetInfinity(), and SCIPsolGetVal().
Referenced by SCIPgetNlRowSolActivity(), and SCIPnlrowGetSolFeasibility().
◆ SCIPnlrowGetSolFeasibility()
SCIP_RETCODE SCIPnlrowGetSolFeasibility | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_SOL * | sol, | ||
SCIP_Real * | feasibility | ||
) |
returns the feasibility of a nonlinear row for the given solution
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data sol primal CIP solution feasibility buffer to store feasibility value
Definition at line 3165 of file nlp.c.
References SCIP_NlRow::lhs, NULL, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIP_Real, and SCIPnlrowGetSolActivity().
Referenced by SCIPgetNlRowSolFeasibility().
◆ SCIPnlrowGetActivityBounds()
SCIP_RETCODE SCIPnlrowGetActivityBounds | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_Real * | minactivity, | ||
SCIP_Real * | maxactivity | ||
) |
returns the minimal activity of a nonlinear row w.r.t. the variables' bounds
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data minactivity buffer to store minimal activity, or NULL maxactivity buffer to store maximal activity, or NULL
Definition at line 3186 of file nlp.c.
References SCIP_Stat::domchgcount, SCIP_NlRow::maxactivity, SCIP_NlRow::minactivity, nlrowCalcActivityBounds(), NULL, SCIP_CALL, SCIP_INVALID, SCIP_OKAY, and SCIP_NlRow::validactivitybdsdomchg.
Referenced by SCIPgetNlRowActivityBounds(), and SCIPnlrowIsRedundant().
◆ SCIPnlrowIsRedundant()
SCIP_RETCODE SCIPnlrowIsRedundant | ( | SCIP_NLROW * | nlrow, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_Bool * | isredundant | ||
) |
returns whether the nonlinear row is redundant w.r.t. the variables' bounds
- Parameters
-
nlrow nonlinear row set global SCIP settings stat problem statistics data isredundant buffer to store whether row is redundant
Definition at line 3217 of file nlp.c.
References FALSE, SCIP_NlRow::lhs, NULL, SCIP_NlRow::rhs, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPnlrowGetActivityBounds(), SCIPsetIsFeasGT(), SCIPsetIsFeasLT(), SCIPsetIsInfinity(), and TRUE.
Referenced by SCIPnlpRemoveRedundantNlRows().
◆ SCIPnlpInclude()
SCIP_RETCODE SCIPnlpInclude | ( | SCIP_SET * | set, |
BMS_BLKMEM * | blkmem | ||
) |
includes event handler that is used by NLP
includes NLP specific plugins (e.g., event handler) and parameters
- Parameters
-
set global SCIP settings blkmem block memory
Definition at line 5062 of file nlp.c.
References EVENTHDLR_DESC, EVENTHDLR_NAME, NULL, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_STAGE_INIT, SCIPerrorMessage, SCIPeventhdlrCreate(), SCIPsetFindEventhdlr(), and SCIPsetIncludeEventhdlr().
Referenced by doScipCreate().
◆ SCIPnlpCreate()
SCIP_RETCODE SCIPnlpCreate | ( | SCIP_NLP ** | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
const char * | name, | ||
int | nvars_estimate | ||
) |
construct a new empty NLP
- Parameters
-
nlp NLP handler, call by reference blkmem block memory set global SCIP settings stat problem statistics name problem name nvars_estimate an estimate on the number of variables that may be added to the NLP later
Definition at line 5088 of file nlp.c.
References BMSallocMemory, BMSduplicateBlockMemoryArray, EVENTHDLR_NAME, FALSE, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_EVENTTYPE_VARADDED, SCIP_EVENTTYPE_VARDELETED, SCIP_INVALID, SCIP_NLPSOLSTAT_UNKNOWN, SCIP_NLPTERMSTAT_OTHER, SCIP_OKAY, SCIP_PLUGINNOTFOUND, SCIPerrorMessage, SCIPeventfilterAdd(), SCIPhashmapCreate(), SCIPnlpiCreateProblem(), SCIPsetFindEventhdlr(), SCIPsetFindNlpi(), SCIPsetSortNlpis(), and TRUE.
Referenced by initSolve().
◆ SCIPnlpFree()
SCIP_RETCODE SCIPnlpFree | ( | SCIP_NLP ** | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_EVENTQUEUE * | eventqueue, | ||
SCIP_LP * | lp | ||
) |
frees NLP data object
- Parameters
-
nlp pointer to NLP data object blkmem block memory set global SCIP settings eventqueue event queue lp SCIP LP, needed for releasing variables
Definition at line 5209 of file nlp.c.
References BMSfreeBlockMemoryArray, BMSfreeBlockMemoryArrayNull, BMSfreeMemory, NULL, SCIP_CALL, SCIP_EVENTTYPE_VARADDED, SCIP_EVENTTYPE_VARDELETED, SCIP_OKAY, SCIPeventfilterDel(), SCIPhashmapFree(), SCIPnlpiFreeProblem(), and SCIPnlpReset().
Referenced by freeReoptSolve(), and freeSolve().
◆ SCIPnlpReset()
SCIP_RETCODE SCIPnlpReset | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_EVENTQUEUE * | eventqueue, | ||
SCIP_LP * | lp | ||
) |
resets the NLP to the empty NLP by removing all variables and rows from NLP, releasing all rows, and flushing the changes to the NLP solver
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings eventqueue event queue lp SCIP LP, needed for releasing variables
Definition at line 5268 of file nlp.c.
References BMSfreeBlockMemoryArrayNull, FALSE, SCIP_Nlp::haveinitguess, SCIP_Nlp::indiving, SCIP_Nlp::initialguess, nlpDelNlRowPos(), nlpDelVarPos(), SCIP_Nlp::nnlrows, NULL, SCIP_Nlp::nvars, SCIP_CALL, SCIP_NLPSOLSTAT_UNKNOWN, SCIP_NLPTERMSTAT_OTHER, SCIP_OKAY, SCIPnlpEndDive(), SCIPnlpFlush(), SCIP_Nlp::solstat, and SCIP_Nlp::termstat.
Referenced by SCIPnlpFree().
◆ SCIPnlpHasCurrentNodeNLP()
currently a dummy function that always returns TRUE
- Parameters
-
nlp NLP data
Definition at line 5309 of file nlp.c.
Referenced by SCIPgetNlRowActivity(), SCIPgetNlRowFeasibility(), SCIPgetNlRowSolActivity(), SCIPgetNlRowSolFeasibility(), and SCIPrecalcNlRowActivity().
◆ SCIPnlpEnsureVarsSize()
SCIP_RETCODE SCIPnlpEnsureVarsSize | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | num | ||
) |
ensures, that variables array of NLP can store at least num entries
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 5318 of file nlp.c.
References BMSreallocBlockMemoryArray, SCIP_Nlp::initialguess, NULL, SCIP_Nlp::nvars, SCIP_ALLOC, SCIP_OKAY, SCIPsetCalcMemGrowSize(), SCIP_Nlp::sizevars, SCIP_Nlp::varlbdualvals, SCIP_Nlp::varmap_nlp2nlpi, SCIP_Nlp::vars, and SCIP_Nlp::varubdualvals.
Referenced by nlpAddVars().
◆ SCIPnlpAddVar()
SCIP_RETCODE SCIPnlpAddVar | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_VAR * | var | ||
) |
adds a variable to the NLP and captures the variable
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings var variable
Definition at line 5352 of file nlp.c.
References SCIP_Nlp::indiving, nlpAddVars(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, SCIPhashmapExists(), SCIPvarIsTransformed(), and SCIP_Nlp::varhash.
Referenced by SCIP_DECL_EVENTEXEC().
◆ SCIPnlpAddVars()
SCIP_RETCODE SCIPnlpAddVars | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | nvars, | ||
SCIP_VAR ** | vars | ||
) |
adds a set of variables to the NLP and captures the variables
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings nvars number of variables to add vars variables to add
Definition at line 5378 of file nlp.c.
References SCIP_Nlp::indiving, nlpAddVars(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, and SCIPerrorMessage.
Referenced by initSolve().
◆ SCIPnlpDelVar()
SCIP_RETCODE SCIPnlpDelVar | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_EVENTQUEUE * | eventqueue, | ||
SCIP_LP * | lp, | ||
SCIP_VAR * | var | ||
) |
deletes a variable from the NLP and releases the variable
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings eventqueue event queue lp SCIP LP, needed to release variable var variable
Definition at line 5403 of file nlp.c.
References SCIP_Nlp::indiving, nlpDelVarPos(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, SCIPhashmapExists(), SCIPhashmapGetImageInt(), SCIPvarGetName(), and SCIP_Nlp::varhash.
Referenced by nlpRemoveFixedVar(), and SCIP_DECL_EVENTEXEC().
◆ SCIPnlpEnsureNlRowsSize()
SCIP_RETCODE SCIPnlpEnsureNlRowsSize | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
int | num | ||
) |
ensures, that nonlinear rows array of NLP can store at least num entries
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings num minimum number of entries to store
Definition at line 5439 of file nlp.c.
References BMSreallocBlockMemoryArray, SCIP_Nlp::nlrows, SCIP_Nlp::nnlrows, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPsetCalcMemGrowSize(), and SCIP_Nlp::sizenlrows.
Referenced by nlpAddNlRows().
◆ SCIPnlpAddNlRow()
SCIP_RETCODE SCIPnlpAddNlRow | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_NLROW * | nlrow | ||
) |
adds a nonlinear row to the NLP and captures it all variables of the row need to be present in the NLP
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings stat problem statistics data nlrow nonlinear row
Definition at line 5467 of file nlp.c.
References SCIP_Nlp::indiving, nlpAddNlRows(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, and SCIPerrorMessage.
Referenced by SCIPaddNlRow().
◆ SCIPnlpAddNlRows()
SCIP_RETCODE SCIPnlpAddNlRows | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
int | nnlrows, | ||
SCIP_NLROW ** | nlrows | ||
) |
adds nonlinear rows to the NLP and captures them all variables of the row need to be present in the NLP
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings stat problem statistics data nnlrows number of rows to add nlrows rows to add
Definition at line 5491 of file nlp.c.
References SCIP_Nlp::indiving, nlpAddNlRows(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, and SCIPerrorMessage.
◆ SCIPnlpDelNlRow()
SCIP_RETCODE SCIPnlpDelNlRow | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_NLROW * | nlrow | ||
) |
deletes a nonlinear row from the NLP does nothing if nonlinear row is not in NLP
- Parameters
-
nlp NLP data blkmem block memory set global SCIP settings nlrow nonlinear row
Definition at line 5519 of file nlp.c.
References SCIP_Nlp::indiving, nlpDelNlRowPos(), SCIP_NlRow::nlpindex, SCIP_Nlp::nnlrows, NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, and SCIPerrorMessage.
Referenced by SCIPdelNlRow().
◆ SCIPnlpFlush()
SCIP_RETCODE SCIPnlpFlush | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set | ||
) |
applies all cached changes to the NLP solver
- Parameters
-
nlp current NLP data blkmem block memory set global SCIP settings
Definition at line 5550 of file nlp.c.
References SCIP_Nlp::indiving, nlpFlushNlRowAdditions(), nlpFlushNlRowDeletions(), nlpFlushObjective(), nlpFlushVarAdditions(), nlpFlushVarDeletions(), SCIP_Nlp::nnlrows, SCIP_Nlp::nnlrows_solver, NULL, SCIP_Nlp::nunflushednlrowadd, SCIP_Nlp::nunflushednlrowdel, SCIP_Nlp::nunflushedvaradd, SCIP_Nlp::nunflushedvardel, SCIP_Nlp::nvars, SCIP_Nlp::nvars_solver, SCIP_Nlp::objflushed, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, and TRUE.
Referenced by SCIPflushNLP(), SCIPnlpReset(), SCIPnlpSolve(), and SCIPnlpStartDive().
◆ SCIPnlpSolve()
SCIP_RETCODE SCIPnlpSolve | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_MESSAGEHDLR * | messagehdlr, | ||
SCIP_STAT * | stat | ||
) |
solves the NLP
- Parameters
-
nlp NLP data blkmem block memory buffers set global SCIP settings messagehdlr message handler stat problem statistics
Definition at line 5587 of file nlp.c.
References SCIP_Nlp::indiving, nlpSolve(), NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, and SCIPnlpFlush().
Referenced by SCIPsolveNLP().
◆ SCIPnlpGetObjval()
gets objective value of current NLP
- Parameters
-
nlp current NLP data
Definition at line 5614 of file nlp.c.
References NULL, and SCIP_Nlp::primalsolobjval.
Referenced by SCIPgetNLPObjval(), and SCIPsolLinkNLPSol().
◆ SCIPnlpGetPseudoObjval()
SCIP_RETCODE SCIPnlpGetPseudoObjval | ( | SCIP_NLP * | nlp, |
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_Real * | pseudoobjval | ||
) |
gives current pseudo objective value
- Parameters
-
nlp current NLP data set global SCIP settings stat problem statistics pseudoobjval buffer to store pseudo objective value
Definition at line 5624 of file nlp.c.
References SCIP_Nlp::divingobj, SCIP_Nlp::indiving, NULL, SCIP_Nlp::nvars, SCIP_CALL, SCIP_OKAY, SCIPnlrowGetPseudoActivity(), SCIPvarGetBestBoundLocal(), SCIPvarGetObj(), and SCIP_Nlp::vars.
◆ SCIPnlpGetFracVars()
SCIP_RETCODE SCIPnlpGetFracVars | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_VAR *** | fracvars, | ||
SCIP_Real ** | fracvarssol, | ||
SCIP_Real ** | fracvarsfrac, | ||
int * | nfracvars, | ||
int * | npriofracvars | ||
) |
gets fractional variables of last NLP solution along with solution values and fractionalities
- Parameters
-
nlp NLP data structure blkmem block memory set global SCIP settings stat problem statistics fracvars pointer to store the array of NLP fractional variables, or NULL fracvarssol pointer to store the array of NLP fractional variables solution values, or NULL fracvarsfrac pointer to store the array of NLP fractional variables fractionalities, or NULL nfracvars pointer to store the number of NLP fractional variables , or NULL npriofracvars pointer to store the number of NLP fractional variables with maximal branching priority, or NULL
Definition at line 5653 of file nlp.c.
References SCIP_Nlp::fracvars, SCIP_Nlp::fracvarsfrac, SCIP_Nlp::fracvarssol, SCIP_Nlp::nfracvars, nlpCalcFracVars(), SCIP_Nlp::npriofracvars, NULL, SCIP_CALL, and SCIP_OKAY.
Referenced by SCIPgetNLPFracVars().
◆ SCIPnlpRemoveRedundantNlRows()
SCIP_RETCODE SCIPnlpRemoveRedundantNlRows | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat | ||
) |
removes all redundant nonlinear rows
- Parameters
-
nlp current NLP data blkmem block memory buffers set global SCIP settings stat problem statistics
Definition at line 5687 of file nlp.c.
References SCIP_Nlp::indiving, nlpDelNlRowPos(), SCIP_Nlp::nlrows, SCIP_Nlp::nnlrows, NULL, SCIP_Bool, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, SCIPnlrowIsRedundant(), and SCIP_Nlp::solstat.
◆ SCIPnlpSetInitialGuess()
SCIP_RETCODE SCIPnlpSetInitialGuess | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_Real * | initguess | ||
) |
set initial guess (approximate primal solution) for next solve
array initguess must be NULL or have length at least SCIPnlpGetNVars()
- Parameters
-
nlp current NLP data blkmem block memory buffers initguess new initial guess, or NULL to clear previous one
Definition at line 5733 of file nlp.c.
References BMScopyMemoryArray, BMSduplicateBlockMemoryArray, FALSE, SCIP_Nlp::haveinitguess, SCIP_Nlp::initialguess, NULL, SCIP_Nlp::nvars, SCIP_Nlp::problem, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPnlpiSetInitialGuess(), SCIP_Nlp::solver, and TRUE.
Referenced by SCIPsetNLPInitialGuess(), and SCIPsetNLPInitialGuessSol().
◆ SCIPnlpWrite()
SCIP_RETCODE SCIPnlpWrite | ( | SCIP_NLP * | nlp, |
SCIP_SET * | set, | ||
SCIP_MESSAGEHDLR * | messagehdlr, | ||
const char * | fname | ||
) |
writes NLP to a file
- Parameters
-
nlp current NLP data set global SCIP settings messagehdlr message handler fname file name
Definition at line 5766 of file nlp.c.
References SCIP_Nlp::name, SCIP_Nlp::nlrows, SCIP_Nlp::nnlrows, NULL, SCIP_Nlp::nvars, SCIP_CALL, SCIP_FILECREATEERROR, SCIP_OKAY, SCIPerrorMessage, SCIPmessageFPrintInfo(), SCIPnlrowPrint(), SCIPvarPrint(), and SCIP_Nlp::vars.
Referenced by SCIPwriteNLP().
◆ SCIPnlpStartDive()
SCIP_RETCODE SCIPnlpStartDive | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set | ||
) |
signals start of diving
- Parameters
-
nlp current NLP data blkmem block memory buffers set global SCIP settings
Definition at line 6156 of file nlp.c.
References SCIP_Nlp::indiving, NULL, SCIP_CALL, SCIP_ERROR, SCIP_OKAY, SCIPerrorMessage, SCIPnlpFlush(), SCIP_Nlp::solver, and TRUE.
Referenced by SCIPstartDiveNLP().
◆ SCIPnlpEndDive()
SCIP_RETCODE SCIPnlpEndDive | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set | ||
) |
resets the bound and objective changes made during diving and disables diving mode
- Parameters
-
nlp current NLP data blkmem block memory set global SCIP settings
Definition at line 6186 of file nlp.c.
References SCIP_Nlp::divingobj, FALSE, SCIP_Nlp::indiving, NULL, SCIP_Nlp::nvars, SCIP_Nlp::nvars_solver, SCIP_Nlp::objflushed, SCIP_Nlp::primalsolobjval, SCIP_Nlp::problem, SCIP_CALL, SCIP_ERROR, SCIP_INVALID, SCIP_NLPSOLSTAT_UNKNOWN, SCIP_NLPTERMSTAT_OTHER, SCIP_OKAY, SCIP_Real, SCIPerrorMessage, SCIPnlpiChgVarBounds(), SCIPnlrowRelease(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPvarGetLbLocal(), SCIPvarGetUbLocal(), SCIP_Nlp::solstat, SCIP_Nlp::solver, SCIP_Nlp::termstat, SCIP_Nlp::varmap_nlpi2nlp, and SCIP_Nlp::vars.
Referenced by SCIPendDiveNLP(), and SCIPnlpReset().
◆ SCIPnlpChgVarObjDive()
SCIP_RETCODE SCIPnlpChgVarObjDive | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_STAT * | stat, | ||
SCIP_VAR * | var, | ||
SCIP_Real | coef | ||
) |
changes coefficient of variable in diving NLP
- Parameters
-
nlp current NLP data blkmem block memory set global SCIP settings stat problem statistics data var variable which coefficient to change coef new linear coefficient of variable in objective
Definition at line 6247 of file nlp.c.
References SCIP_Nlp::divingobj, FALSE, SCIP_Nlp::indiving, NULL, SCIP_Nlp::nvars, SCIP_Nlp::objflushed, SCIP_Nlp::problem, SCIP_CALL, SCIP_EXPRCURV_LINEAR, SCIP_OKAY, SCIP_Real, SCIPhashmapExists(), SCIPhashmapGetImageInt(), SCIPnlpiChgLinearCoefs(), SCIPnlrowChgLinearCoef(), SCIPnlrowCreate(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIPsetInfinity(), SCIPvarGetObj(), SCIP_Nlp::solver, SCIP_Nlp::varhash, SCIP_Nlp::varmap_nlp2nlpi, and SCIP_Nlp::vars.
Referenced by SCIPchgVarObjDiveNLP().
◆ SCIPnlpChgVarBoundsDive()
SCIP_RETCODE SCIPnlpChgVarBoundsDive | ( | SCIP_NLP * | nlp, |
SCIP_VAR * | var, | ||
SCIP_Real | lb, | ||
SCIP_Real | ub | ||
) |
changes bounds of variable in diving NLP
- Parameters
-
nlp current NLP data var variable which coefficient to change lb new lower bound of variable ub new upper bound of variable
Definition at line 6307 of file nlp.c.
References SCIP_Nlp::indiving, NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPhashmapExists(), SCIPhashmapGetImageInt(), SCIPnlpiChgVarBounds(), SCIP_Nlp::solver, SCIP_Nlp::varhash, and SCIP_Nlp::varmap_nlp2nlpi.
Referenced by SCIPchgVarBoundsDiveNLP().
◆ SCIPnlpChgVarsBoundsDive()
SCIP_RETCODE SCIPnlpChgVarsBoundsDive | ( | SCIP_NLP * | nlp, |
SCIP_SET * | set, | ||
int | nvars, | ||
SCIP_VAR ** | vars, | ||
SCIP_Real * | lbs, | ||
SCIP_Real * | ubs | ||
) |
changes bounds of a set of variables in diving NLP
- Parameters
-
nlp current NLP data set global SCIP settings nvars number of variables which bounds to change vars variables which bounds to change lbs new lower bounds of variables ubs new upper bounds of variables
Definition at line 6335 of file nlp.c.
References SCIP_Nlp::indiving, NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPhashmapExists(), SCIPhashmapGetImageInt(), SCIPnlpiChgVarBounds(), SCIPsetAllocBufferArray, SCIPsetFreeBufferArray, SCIP_Nlp::solver, SCIP_Nlp::varhash, and SCIP_Nlp::varmap_nlp2nlpi.
Referenced by SCIPchgVarsBoundsDiveNLP().
◆ SCIPnlpIsDivingObjChanged()
returns whether the objective function has been changed during diving
- Parameters
-
nlp current NLP data
Definition at line 6379 of file nlp.c.
References SCIP_Nlp::divingobj, and NULL.
Referenced by SCIPsolLinkNLPSol().
◆ SCIPnlpSolveDive()
SCIP_RETCODE SCIPnlpSolveDive | ( | SCIP_NLP * | nlp, |
BMS_BLKMEM * | blkmem, | ||
SCIP_SET * | set, | ||
SCIP_MESSAGEHDLR * | messagehdlr, | ||
SCIP_STAT * | stat | ||
) |
solves diving NLP
- Parameters
-
nlp current NLP data blkmem block memory buffers set global SCIP settings messagehdlr message handler stat problem statistics
Definition at line 6387 of file nlp.c.
References nlpSolve(), SCIP_CALL, and SCIP_OKAY.
Referenced by SCIPsolveDiveNLP().
◆ SCIPnlpGetVars()
gets array with variables of the NLP
- Parameters
-
nlp current NLP data
Definition at line 5817 of file nlp.c.
References NULL, and SCIP_Nlp::vars.
Referenced by SCIPgetNLPVars(), SCIPgetNLPVarsData(), SCIPsetNLPInitialGuessSol(), and SCIPsolLinkNLPSol().
◆ SCIPnlpGetNVars()
int SCIPnlpGetNVars | ( | SCIP_NLP * | nlp | ) |
gets current number of variables in NLP
- Parameters
-
nlp current NLP data
Definition at line 5827 of file nlp.c.
References NULL, and SCIP_Nlp::nvars.
Referenced by SCIPgetNLPVarsData(), SCIPgetNNLPVars(), SCIPsetNLPInitialGuessSol(), and SCIPsolLinkNLPSol().
◆ SCIPnlpGetVarsNonlinearity()
SCIP_RETCODE SCIPnlpGetVarsNonlinearity | ( | SCIP_NLP * | nlp, |
int * | nlcount | ||
) |
computes for each variables the number of NLP rows in which the variable appears in a nonlinear var
- Parameters
-
nlp current NLP data nlcount an array of length at least SCIPnlpGetNVars() to store nonlinearity counts of variables
Definition at line 5837 of file nlp.c.
References BMSclearMemoryArray, SCIP_NlRow::exprtree, SCIP_Nlp::nlrows, SCIP_Nlp::nnlrows, SCIP_NlRow::nquadvars, NULL, SCIP_Nlp::nvars, SCIP_NlRow::quadvars, SCIP_NlRow::quadvarshash, SCIP_OKAY, SCIPexprtreeGetNVars(), SCIPexprtreeGetVars(), SCIPhashmapExists(), SCIPhashmapGetImageInt(), and SCIP_Nlp::varhash.
Referenced by SCIPgetNLPVarsNonlinearity().
◆ SCIPnlpHasContinuousNonlinearity()
indicates whether there exists a row that contains a continuous variable in a nonlinear term
- Note
- The method may have to touch every row and nonlinear term to compute its result.
- Parameters
-
nlp current NLP data
Definition at line 5898 of file nlp.c.
References SCIP_NlRow::exprtree, FALSE, SCIP_Nlp::nlrows, SCIP_Nlp::nnlrows, SCIP_NlRow::nquadvars, NULL, SCIP_NlRow::quadvars, SCIP_VARTYPE_CONTINUOUS, SCIPexprtreeGetNVars(), SCIPexprtreeGetVars(), SCIPvarGetType(), and TRUE.
Referenced by SCIPhasNLPContinuousNonlinearity().
◆ SCIPnlpGetVarsLbDualsol()
gives dual solution values associated with lower bounds of NLP variables
- Parameters
-
nlp current NLP data
Definition at line 5936 of file nlp.c.
References NULL, and SCIP_Nlp::varlbdualvals.
Referenced by SCIPgetNLPVarsLbDualsol().
◆ SCIPnlpGetVarsUbDualsol()
gives dual solution values associated with upper bounds of NLP variables
- Parameters
-
nlp current NLP data
Definition at line 5946 of file nlp.c.
References NULL, and SCIP_Nlp::varubdualvals.
Referenced by SCIPgetNLPVarsUbDualsol().
◆ SCIPnlpGetNlRows()
SCIP_NLROW** SCIPnlpGetNlRows | ( | SCIP_NLP * | nlp | ) |
gets array with nonlinear rows of the NLP
- Parameters
-
nlp current NLP data
Definition at line 5956 of file nlp.c.
References SCIP_Nlp::nlrows, and NULL.
Referenced by SCIPgetNLPNlRows(), and SCIPgetNLPNlRowsData().
◆ SCIPnlpGetNNlRows()
int SCIPnlpGetNNlRows | ( | SCIP_NLP * | nlp | ) |
gets current number of nonlinear rows in NLP
- Parameters
-
nlp current NLP data
Definition at line 5966 of file nlp.c.
References SCIP_Nlp::nnlrows, and NULL.
Referenced by SCIPgetNLPNlRowsData(), and SCIPgetNNLPNlRows().
◆ SCIPnlpGetNLPI()
gets the NLP solver interface
- Parameters
-
nlp current NLP data
Definition at line 5976 of file nlp.c.
References NULL, and SCIP_Nlp::solver.
Referenced by SCIPgetNLPI().
◆ SCIPnlpGetNLPIProblem()
SCIP_NLPIPROBLEM* SCIPnlpGetNLPIProblem | ( | SCIP_NLP * | nlp | ) |
gets the NLP problem in the solver interface
- Parameters
-
nlp current NLP data
Definition at line 5986 of file nlp.c.
References NULL, and SCIP_Nlp::problem.
Referenced by SCIPgetNLPI().
◆ SCIPnlpIsDiving()
indicates whether NLP is currently in diving mode
- Parameters
-
nlp current NLP data
Definition at line 5996 of file nlp.c.
References SCIP_Nlp::indiving, and NULL.
◆ SCIPnlpGetSolstat()
SCIP_NLPSOLSTAT SCIPnlpGetSolstat | ( | SCIP_NLP * | nlp | ) |
gets solution status of current NLP
- Parameters
-
nlp current NLP data
Definition at line 6006 of file nlp.c.
References NULL, and SCIP_Nlp::solstat.
Referenced by SCIPgetNLPSolstat(), SCIPlinkNLPSol(), and SCIPsolLinkNLPSol().
◆ SCIPnlpGetTermstat()
SCIP_NLPTERMSTAT SCIPnlpGetTermstat | ( | SCIP_NLP * | nlp | ) |
gets termination status of last NLP solve
- Parameters
-
nlp current NLP data
Definition at line 6016 of file nlp.c.
References NULL, and SCIP_Nlp::termstat.
Referenced by SCIPgetNLPTermstat().
◆ SCIPnlpGetStatistics()
SCIP_RETCODE SCIPnlpGetStatistics | ( | SCIP_NLP * | nlp, |
SCIP_NLPSTATISTICS * | statistics | ||
) |
gives statistics (number of iterations, solving time, ...) of last NLP solve
- Parameters
-
nlp pointer to NLP datastructure statistics pointer to store statistics
Definition at line 6026 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiGetStatistics(), and SCIP_Nlp::solver.
Referenced by SCIPgetNLPStatistics().
◆ SCIPnlpHasSolution()
indicates whether a feasible solution for the current NLP is available thus, returns whether the solution status <= feasible
- Parameters
-
nlp current NLP data
Definition at line 6043 of file nlp.c.
References NULL, SCIP_NLPSOLSTAT_FEASIBLE, and SCIP_Nlp::solstat.
Referenced by nlpCalcFracVars(), SCIPcreateNLPSol(), SCIPgetNlRowActivity(), SCIPgetNlRowFeasibility(), SCIPgetNlRowSolActivity(), SCIPgetNlRowSolFeasibility(), SCIPhasNLPSolution(), and SCIPrecalcNlRowActivity().
◆ SCIPnlpGetIntPar()
SCIP_RETCODE SCIPnlpGetIntPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
int * | ival | ||
) |
gets integer parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number ival pointer to store the parameter value
Definition at line 6053 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiGetIntPar(), and SCIP_Nlp::solver.
Referenced by SCIPgetNLPIntPar().
◆ SCIPnlpSetIntPar()
SCIP_RETCODE SCIPnlpSetIntPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
int | ival | ||
) |
sets integer parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number ival parameter value
Definition at line 6070 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiSetIntPar(), and SCIP_Nlp::solver.
Referenced by SCIPsetNLPIntPar().
◆ SCIPnlpGetRealPar()
SCIP_RETCODE SCIPnlpGetRealPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
SCIP_Real * | dval | ||
) |
gets floating point parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number dval pointer to store the parameter value
Definition at line 6086 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiGetRealPar(), and SCIP_Nlp::solver.
Referenced by SCIPgetNLPRealPar().
◆ SCIPnlpSetRealPar()
SCIP_RETCODE SCIPnlpSetRealPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
SCIP_Real | dval | ||
) |
sets floating point parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number dval parameter value
Definition at line 6103 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiSetRealPar(), and SCIP_Nlp::solver.
Referenced by SCIPsetNLPRealPar().
◆ SCIPnlpGetStringPar()
SCIP_RETCODE SCIPnlpGetStringPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
const char ** | sval | ||
) |
gets string parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number sval pointer to store the parameter value
Definition at line 6119 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiGetStringPar(), and SCIP_Nlp::solver.
Referenced by SCIPgetNLPStringPar().
◆ SCIPnlpSetStringPar()
SCIP_RETCODE SCIPnlpSetStringPar | ( | SCIP_NLP * | nlp, |
SCIP_NLPPARAM | type, | ||
const char * | sval | ||
) |
sets string parameter of NLP
- Parameters
-
nlp pointer to NLP datastructure type parameter number sval parameter value
Definition at line 6136 of file nlp.c.
References NULL, SCIP_Nlp::problem, SCIP_CALL, SCIP_OKAY, SCIPnlpiSetStringPar(), and SCIP_Nlp::solver.
Referenced by SCIPsetNLPStringPar().