SCIP-SDP
3.1.0
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General interface methods for SDP-preprocessing (mainly fixing variables and removing empty rows/cols) More...
Go to the source code of this file.
Functions | |
Miscellaneous Methods | |
EXTERN const char * | SCIPsdpiGetSolverName (void) |
EXTERN const char * | SCIPsdpiGetSolverDesc (void) |
EXTERN void * | SCIPsdpiGetSolverPointer (SCIP_SDPI *sdpi) |
EXTERN SCIP_Real | SCIPsdpiGetDefaultSdpiSolverFeastol (void) |
EXTERN SCIP_Real | SCIPsdpiGetDefaultSdpiSolverGaptol (void) |
EXTERN int | SCIPsdpiGetDefaultSdpiSolverNpenaltyIncreases (void) |
EXTERN SCIP_Bool | SCIPsdpiDoesWarmstartNeedPrimal (void) |
SDPI Creation and Destruction Methods | |
EXTERN SCIP_RETCODE | SCIPsdpiCreate (SCIP_SDPI **sdpi, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, BMS_BUFMEM *bufmem) |
EXTERN SCIP_RETCODE | SCIPsdpiFree (SCIP_SDPI **sdpi) |
EXTERN SCIP_RETCODE | SCIPsdpiClone (SCIP_SDPI *oldsdpi, SCIP_SDPI *newsdpi) |
Modification Methods | |
EXTERN SCIP_RETCODE | SCIPsdpiLoadSDP (SCIP_SDPI *sdpi, int nvars, SCIP_Real *obj, SCIP_Real *lb, SCIP_Real *ub, int nsdpblocks, int *sdpblocksizes, int *sdpnblockvars, int sdpconstnnonz, int *sdpconstnblocknonz, int **sdpconstrow, int **sdpconstcol, SCIP_Real **sdpconstval, int sdpnnonz, int **sdpnblockvarnonz, int **sdpvar, int ***sdprow, int ***sdpcol, SCIP_Real ***sdpval, int nlpcons, SCIP_Real *lplhs, SCIP_Real *lprhs, int lpnnonz, int *lprow, int *lpcol, SCIP_Real *lpval) |
EXTERN SCIP_RETCODE | SCIPsdpiAddLPRows (SCIP_SDPI *sdpi, int nrows, const SCIP_Real *lhs, const SCIP_Real *rhs, int nnonz, const int *row, const int *col, const SCIP_Real *val) |
EXTERN SCIP_RETCODE | SCIPsdpiDelLPRows (SCIP_SDPI *sdpi, int firstrow, int lastrow) |
EXTERN SCIP_RETCODE | SCIPsdpiDelLPRowset (SCIP_SDPI *sdpi, int *dstat) |
EXTERN SCIP_RETCODE | SCIPsdpiClear (SCIP_SDPI *sdpi) |
EXTERN SCIP_RETCODE | SCIPsdpiChgObj (SCIP_SDPI *sdpi, int nvars, const int *ind, const SCIP_Real *obj) |
EXTERN SCIP_RETCODE | SCIPsdpiChgBounds (SCIP_SDPI *sdpi, int nvars, const int *ind, const SCIP_Real *lb, const SCIP_Real *ub) |
SCIP_RETCODE | SCIPsdpiChgLPLhRhSides (SCIP_SDPI *sdpi, int nrows, const int *ind, const SCIP_Real *lhs, const SCIP_Real *rhs) |
Data Accessing Methods | |
EXTERN SCIP_RETCODE | SCIPsdpiGetNLPRows (SCIP_SDPI *sdpi, int *nlprows) |
EXTERN SCIP_RETCODE | SCIPsdpiGetNSDPBlocks (SCIP_SDPI *sdpi, int *nsdpblocks) |
EXTERN SCIP_RETCODE | SCIPsdpiGetNVars (SCIP_SDPI *sdpi, int *nvars) |
EXTERN SCIP_RETCODE | SCIPsdpiGetSDPNNonz (SCIP_SDPI *sdpi, int *nnonz) |
EXTERN SCIP_RETCODE | SCIPsdpiGetConstNNonz (SCIP_SDPI *sdpi, int *nnonz) |
EXTERN SCIP_RETCODE | SCIPsdpiGetLPNNonz (SCIP_SDPI *sdpi, int *nnonz) |
EXTERN SCIP_RETCODE | SCIPsdpiGetObj (SCIP_SDPI *sdpi, int firstvar, int lastvar, SCIP_Real *vals) |
EXTERN SCIP_RETCODE | SCIPsdpiGetBounds (SCIP_SDPI *sdpi, int firstvar, int lastvar, SCIP_Real *lbs, SCIP_Real *ubs) |
EXTERN SCIP_RETCODE | SCIPsdpiGetLhSides (SCIP_SDPI *sdpi, int firstrow, int lastrow, SCIP_Real *lhss) |
EXTERN SCIP_RETCODE | SCIPsdpiGetRhSides (SCIP_SDPI *sdpi, int firstrow, int lastrow, SCIP_Real *rhss) |
Solving Methods | |
EXTERN SCIP_RETCODE | SCIPsdpiSolve (SCIP_SDPI *sdpi, SCIP_Real *starty, int *startZnblocknonz, int **startZrow, int **startZcol, SCIP_Real **startZval, int *startXnblocknonz, int **startXrow, int **startXcol, SCIP_Real **startXval, SCIP_SDPSOLVERSETTING startsettings, SCIP_Bool enforceslatercheck, SCIP_Real timelimit) |
Solution Information Methods | |
EXTERN SCIP_Bool | SCIPsdpiWasSolved (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiSolvedOrig (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiFeasibilityKnown (SCIP_SDPI *sdpi) |
EXTERN SCIP_RETCODE | SCIPsdpiGetSolFeasibility (SCIP_SDPI *sdpi, SCIP_Bool *primalfeasible, SCIP_Bool *dualfeasible) |
EXTERN SCIP_Bool | SCIPsdpiIsPrimalUnbounded (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsPrimalInfeasible (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsPrimalFeasible (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsDualUnbounded (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsDualInfeasible (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsDualFeasible (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsConverged (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsObjlimExc (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsIterlimExc (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsTimelimExc (SCIP_SDPI *sdpi) |
EXTERN int | SCIPsdpiGetInternalStatus (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsOptimal (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsAcceptable (SCIP_SDPI *sdpi) |
EXTERN SCIP_RETCODE | SCIPsdpiGetObjval (SCIP_SDPI *sdpi, SCIP_Real *objval) |
EXTERN SCIP_RETCODE | SCIPsdpiGetLowerObjbound (SCIP_SDPI *sdpi, SCIP_Real *objlb) |
EXTERN SCIP_RETCODE | SCIPsdpiGetSol (SCIP_SDPI *sdpi, SCIP_Real *objval, SCIP_Real *dualsol, int *dualsollength) |
EXTERN SCIP_RETCODE | SCIPsdpiGetPreoptimalPrimalNonzeros (SCIP_SDPI *sdpi, int nblocks, int *startXnblocknonz) |
EXTERN SCIP_RETCODE | SCIPsdpiGetPreoptimalSol (SCIP_SDPI *sdpi, SCIP_Bool *success, SCIP_Real *dualsol, int *dualsollength, int nblocks, int *startXnblocknonz, int **startXrow, int **startXcol, SCIP_Real **startXval) |
EXTERN SCIP_RETCODE | SCIPsdpiGetPrimalBoundVars (SCIP_SDPI *sdpi, SCIP_Real *lbvars, SCIP_Real *ubvars, int *arraylength) |
EXTERN SCIP_RETCODE | SCIPsdpiGetPrimalNonzeros (SCIP_SDPI *sdpi, int nblocks, int *startXnblocknonz) |
EXTERN SCIP_RETCODE | SCIPsdpiGetPrimalMatrix (SCIP_SDPI *sdpi, int nblocks, int *startXnblocknonz, int **startXrow, int **startXcol, SCIP_Real **startXval) |
EXTERN SCIP_Real | SCIPsdpiGetMaxPrimalEntry (SCIP_SDPI *sdpi) |
EXTERN SCIP_RETCODE | SCIPsdpiGetIterations (SCIP_SDPI *sdpi, int *iterations) |
EXTERN SCIP_RETCODE | SCIPsdpiGetSdpCalls (SCIP_SDPI *sdpi, int *calls) |
EXTERN SCIP_RETCODE | SCIPsdpiSettingsUsed (SCIP_SDPI *sdpi, SCIP_SDPSOLVERSETTING *usedsetting) |
EXTERN SCIP_RETCODE | SCIPsdpiSlaterSettings (SCIP_SDPI *sdpi, SCIP_SDPSLATERSETTING *slatersetting) |
EXTERN SCIP_RETCODE | SCIPsdpiSlater (SCIP_SDPI *sdpi, SCIP_SDPSLATER *primalslater, SCIP_SDPSLATER *dualslater) |
Numerical Methods | |
EXTERN SCIP_Real | SCIPsdpiInfinity (SCIP_SDPI *sdpi) |
EXTERN SCIP_Bool | SCIPsdpiIsInfinity (SCIP_SDPI *sdpi, SCIP_Real val) |
EXTERN SCIP_RETCODE | SCIPsdpiGetRealpar (SCIP_SDPI *sdpi, SCIP_SDPPARAM type, SCIP_Real *dval) |
EXTERN SCIP_RETCODE | SCIPsdpiSetRealpar (SCIP_SDPI *sdpi, SCIP_SDPPARAM type, SCIP_Real dval) |
EXTERN SCIP_RETCODE | SCIPsdpiGetIntpar (SCIP_SDPI *sdpi, SCIP_SDPPARAM type, int *ival) |
EXTERN SCIP_RETCODE | SCIPsdpiSetIntpar (SCIP_SDPI *sdpi, SCIP_SDPPARAM type, int ival) |
EXTERN SCIP_RETCODE | SCIPsdpiComputeLambdastar (SCIP_SDPI *sdpi, SCIP_Real maxguess) |
EXTERN SCIP_RETCODE | SCIPsdpiComputePenaltyparam (SCIP_SDPI *sdpi, SCIP_Real maxcoeff, SCIP_Real *penaltyparam) |
EXTERN SCIP_RETCODE | SCIPsdpiComputeMaxPenaltyparam (SCIP_SDPI *sdpi, SCIP_Real penaltyparam, SCIP_Real *maxpenaltyparam) |
File Interface Methods | |
EXTERN SCIP_RETCODE | SCIPsdpiReadSDP (SCIP_SDPI *sdpi, const char *fname) |
EXTERN SCIP_RETCODE | SCIPsdpiWriteSDP (SCIP_SDPI *sdpi, const char *fname) |
General interface methods for SDP-preprocessing (mainly fixing variables and removing empty rows/cols)
This file specifies a generic SDP-solver interface used by SCIP to create, modify, and solve semidefinite programs of the (dual) form
for symmetric matrices and a matrix and query information about the solution.
All indexing (rows, columns, blocks and variables) starts at 0.
Although it includes a few SCIP header files, e.g., because it uses SCIP's return codes, it can be used independently of any SCIP instance.
Definition in file sdpi.h.
EXTERN const char* SCIPsdpiGetSolverName | ( | void | ) |
gets name and potentially version of SDP-solver
Definition at line 1373 of file sdpi.c.
References SCIPsdpiSolverGetSolverName().
Referenced by calcRelax(), SCIP_DECL_RELAXEXIT(), SCIP_DECL_RELAXINITSOL(), SCIP_DECL_TABLEOUTPUT(), and SCIPincludeRelaxSdp().
EXTERN const char* SCIPsdpiGetSolverDesc | ( | void | ) |
gets description of SDP-solver (developer, webpage, ...)
Definition at line 1381 of file sdpi.c.
References SCIPsdpiSolverGetSolverDesc().
Referenced by SCIPincludeRelaxSdp().
EXTERN void* SCIPsdpiGetSolverPointer | ( | SCIP_SDPI * | sdpi | ) |
gets pointer for SDP-solver - use only with great care
The behavior of this function depends on the solver and its use is therefore only recommended if you really know what you are doing. In general, it returns a pointer to the SDP-solver object.
sdpi | SDP-interface structure |
Definition at line 1394 of file sdpi.c.
References SCIPsdpiSolverGetSolverPointer().
EXTERN SCIP_Real SCIPsdpiGetDefaultSdpiSolverFeastol | ( | void | ) |
gets default feasibility tolerance for SDP-solver in SCIP-SDP
Definition at line 1402 of file sdpi.c.
References SCIPsdpiSolverGetDefaultSdpiSolverFeastol().
Referenced by SCIPincludeRelaxSdp().
EXTERN SCIP_Real SCIPsdpiGetDefaultSdpiSolverGaptol | ( | void | ) |
gets default duality gap tolerance for SDP-solver in SCIP-SDP
Definition at line 1410 of file sdpi.c.
References SCIPsdpiSolverGetDefaultSdpiSolverGaptol().
Referenced by SCIPincludeRelaxSdp().
EXTERN int SCIPsdpiGetDefaultSdpiSolverNpenaltyIncreases | ( | void | ) |
gets default number of increases of penalty parameter for SDP-solver in SCIP-SDP
Definition at line 1418 of file sdpi.c.
References SCIPsdpiSolverGetDefaultSdpiSolverNpenaltyIncreases().
Referenced by SCIPincludeRelaxSdp().
EXTERN SCIP_Bool SCIPsdpiDoesWarmstartNeedPrimal | ( | void | ) |
Should primal solution values be saved for warmstarting purposes?
Definition at line 1426 of file sdpi.c.
References SCIPsdpiSolverDoesWarmstartNeedPrimal().
Referenced by calcRelax(), SCIP_DECL_RELAXEXIT(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiCreate | ( | SCIP_SDPI ** | sdpi, |
SCIP_MESSAGEHDLR * | messagehdlr, | ||
BMS_BLKMEM * | blkmem, | ||
BMS_BUFMEM * | bufmem | ||
) |
creates an sdpi object
sdpi | pointer to an SDP-interface structure |
messagehdlr | message handler to use for printing messages, or NULL |
blkmem | block memory |
bufmem | buffer memory |
Definition at line 1444 of file sdpi.c.
References BMS_CALL, DEFAULT_EPSILON, DEFAULT_FEASTOL, DEFAULT_MAXPENALTYPARAM, DEFAULT_NPENALTYINCR, DEFAULT_PENALTYPARAM, DEFAULT_SDPSOLVERGAPTOL, SCIP_SDPSLATER_NOINFO, SCIPsdpiSolverCreate(), and SCIPsdpiSolverInfinity().
Referenced by SCIPincludeRelaxSdp().
EXTERN SCIP_RETCODE SCIPsdpiFree | ( | SCIP_SDPI ** | sdpi | ) |
deletes an sdpi object
sdpi | pointer to an SDP-interface structure |
Definition at line 1512 of file sdpi.c.
References SCIPsdpiSolverFree().
Referenced by SCIP_DECL_RELAXFREE().
cloning method of the general SDP-Interface
oldsdpi | pointer to the SDP-interface structure that should be cloned |
newsdpi | pointer to an SDP-interface structure to clone into |
Definition at line 1577 of file sdpi.c.
References BMS_CALL, and SCIPsdpiSolverCreate().
EXTERN SCIP_RETCODE SCIPsdpiLoadSDP | ( | SCIP_SDPI * | sdpi, |
int | nvars, | ||
SCIP_Real * | obj, | ||
SCIP_Real * | lb, | ||
SCIP_Real * | ub, | ||
int | nsdpblocks, | ||
int * | sdpblocksizes, | ||
int * | sdpnblockvars, | ||
int | sdpconstnnonz, | ||
int * | sdpconstnblocknonz, | ||
int ** | sdpconstrow, | ||
int ** | sdpconstcol, | ||
SCIP_Real ** | sdpconstval, | ||
int | sdpnnonz, | ||
int ** | sdpnblockvarnonz, | ||
int ** | sdpvar, | ||
int *** | sdprow, | ||
int *** | sdpcol, | ||
SCIP_Real *** | sdpval, | ||
int | nlpcons, | ||
SCIP_Real * | lplhs, | ||
SCIP_Real * | lprhs, | ||
int | lpnnonz, | ||
int * | lprow, | ||
int * | lpcol, | ||
SCIP_Real * | lpval | ||
) |
copies SDP data into SDP-solver
sdpi | SDP-interface structure |
nvars | number of variables |
obj | objective function values of variables |
lb | lower bounds of variables |
ub | upper bounds of variables |
nsdpblocks | number of SDP-blocks |
sdpblocksizes | sizes of the SDP-blocks (may be NULL if nsdpblocks = sdpconstnnonz = sdpnnonz = 0) |
sdpnblockvars | number of variables in each SDP-block (may be NULL if nsdpblocks = sdpconstnnonz = sdpnnonz = 0) |
sdpconstnnonz | number of nonzero elements in the constant matrices of the SDP-blocks |
sdpconstnblocknonz | number of nonzeros for each variable in the constant part, also the i-th entry gives the number of entries of sdpconst row/col/val [i] |
sdpconstrow | pointer to row-indices of constant matrix for each block (may be NULL if sdpconstnnonz = 0) |
sdpconstcol | pointer to column-indices of constant matrix for each block (may be NULL if sdpconstnnonz = 0) |
sdpconstval | pointer to values of entries of constant matrix for each block (may be NULL if sdpconstnnonz = 0) |
sdpnnonz | number of nonzero elements in the SDP-constraint-matrices |
sdpnblockvarnonz | sdpnblockvarnonz[i][j] gives the number of nonzeros for the j-th variable (not necessarly variable j) in the i-th block, this is also the length of row/col/val[i][j] |
sdpvar | sdpvar[i][j] gives the global index of the j-th variable (according to the sorting for row/col/val) in the i-th block |
sdprow | pointer to the row-indices for each block and variable in this block, so row[i][j][k] gives the k-th nonzero of the j-th variable (not necessarly variable j) in the i-th block (may be NULL if sdptnnonz = 0) |
sdpcol | pointer to the column-indices for each block and variable in this block (may be NULL if sdpnnonz = 0) |
sdpval | pointer to the values of the nonzeros for each block and variable in this block (may be NULL if sdpnnonz = 0) |
nlpcons | number of LP-constraints |
lplhs | left-hand sides of LP rows (may be NULL if nlpcons = 0) |
lprhs | right-hand sides of LP rows (may be NULL if nlpcons = 0) |
lpnnonz | number of nonzero elements in the LP-constraint-matrix |
lprow | row-index for each entry in lpval-array (may be NULL if lpnnonz = 0) |
lpcol | column-index for each entry in lpval-array (may be NULL if lpnnonz = 0) |
lpval | values of LP-constraint matrix entries (may be NULL if lpnnonz = 0) |
Definition at line 1697 of file sdpi.c.
References BMS_CALL, DUPLICATE_ARRAY_NULL, and ensureLowerTriangular().
Referenced by putSdpDataInInterface().
EXTERN SCIP_RETCODE SCIPsdpiAddLPRows | ( | SCIP_SDPI * | sdpi, |
int | nrows, | ||
const SCIP_Real * | lhs, | ||
const SCIP_Real * | rhs, | ||
int | nnonz, | ||
const int * | row, | ||
const int * | col, | ||
const SCIP_Real * | val | ||
) |
adds rows to the LP-Block
sdpi | SDP-interface structure |
nrows | number of rows to be added |
lhs | left-hand sides of new rows |
rhs | right-hand sides of new rows |
nnonz | number of nonzero elements to be added to the LP constraint matrix |
row | row-indices of constraint-matrix entries, going from 0 to nrows - 1, these will be changed to nlpcons + i |
col | column-indices of constraint-matrix entries |
val | values of constraint-matrix entries |
Definition at line 1917 of file sdpi.c.
References BMS_CALL.
Referenced by putLpDataInInterface().
EXTERN SCIP_RETCODE SCIPsdpiDelLPRows | ( | SCIP_SDPI * | sdpi, |
int | firstrow, | ||
int | lastrow | ||
) |
deletes all rows in the given range from the LP-Block
sdpi | SDP-interface structure |
firstrow | first row to be deleted |
lastrow | last row to be deleted |
Definition at line 1982 of file sdpi.c.
References BMS_CALL.
Referenced by putLpDataInInterface(), and SCIPsdpiDelLPRowset().
EXTERN SCIP_RETCODE SCIPsdpiDelLPRowset | ( | SCIP_SDPI * | sdpi, |
int * | dstat | ||
) |
deletes LP-rows from SDP-interface
sdpi | SDP-interface structure |
dstat | deletion status of LP rows input: 1 if row should be deleted, 0 otherwise output: new position of row, -1 if row was deleted |
Definition at line 2092 of file sdpi.c.
References SCIPsdpiDelLPRows().
EXTERN SCIP_RETCODE SCIPsdpiClear | ( | SCIP_SDPI * | sdpi | ) |
clears the whole SDP
sdpi | SDP-interface structure |
Definition at line 2134 of file sdpi.c.
References SCIPsdpiSolverResetCounter().
Referenced by SCIP_DECL_RELAXEXIT().
EXTERN SCIP_RETCODE SCIPsdpiChgObj | ( | SCIP_SDPI * | sdpi, |
int | nvars, | ||
const int * | ind, | ||
const SCIP_Real * | obj | ||
) |
changes objective coefficients of variables
sdpi | SDP-interface structure |
nvars | number of variables to change objective coefficients for |
ind | variables indices |
obj | new objective coefficients |
Definition at line 2150 of file sdpi.c.
Referenced by putLpDataInInterface().
EXTERN SCIP_RETCODE SCIPsdpiChgBounds | ( | SCIP_SDPI * | sdpi, |
int | nvars, | ||
const int * | ind, | ||
const SCIP_Real * | lb, | ||
const SCIP_Real * | ub | ||
) |
changes lower and upper bounds of variables
sdpi | SDP-interface structure |
nvars | number of variables to change bounds for |
ind | variables indices |
lb | values for the new lower bounds |
ub | values for the new upper bounds |
Definition at line 2179 of file sdpi.c.
Referenced by putLpDataInInterface().
SCIP_RETCODE SCIPsdpiChgLPLhRhSides | ( | SCIP_SDPI * | sdpi, |
int | nrows, | ||
const int * | ind, | ||
const SCIP_Real * | lhs, | ||
const SCIP_Real * | rhs | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetNLPRows | ( | SCIP_SDPI * | sdpi, |
int * | nlprows | ||
) |
gets the number of LP-rows in the SDP
sdpi | SDP-interface structure |
nlprows | pointer to store the number of rows |
Definition at line 2257 of file sdpi.c.
Referenced by putLpDataInInterface().
EXTERN SCIP_RETCODE SCIPsdpiGetNSDPBlocks | ( | SCIP_SDPI * | sdpi, |
int * | nsdpblocks | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetNVars | ( | SCIP_SDPI * | sdpi, |
int * | nvars | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetSDPNNonz | ( | SCIP_SDPI * | sdpi, |
int * | nnonz | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetConstNNonz | ( | SCIP_SDPI * | sdpi, |
int * | nnonz | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetLPNNonz | ( | SCIP_SDPI * | sdpi, |
int * | nnonz | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetObj | ( | SCIP_SDPI * | sdpi, |
int | firstvar, | ||
int | lastvar, | ||
SCIP_Real * | vals | ||
) |
gets objective coefficients from SDP-interface
sdpi | SDP-interface structure |
firstvar | first variable to get objective coefficient for |
lastvar | last variable to get objective coefficient for |
vals | pointer to store objective coefficients (memory of size lastvar - firstvar + 1 needs to be allocated) |
EXTERN SCIP_RETCODE SCIPsdpiGetBounds | ( | SCIP_SDPI * | sdpi, |
int | firstvar, | ||
int | lastvar, | ||
SCIP_Real * | lbs, | ||
SCIP_Real * | ubs | ||
) |
gets current variable lower and/or upper bounds from SDP-interface
sdpi | SDP-interface structure |
firstvar | first variable to get bounds for |
lastvar | last variable to get bounds for |
lbs | pointer to store lower bound values (memory of size lastvar - firstvar + 1 needs to be allocated), or NULL |
ubs | pointer to store upper bound values (memory of size lastvar - firstvar + 1 needs to be allocated), or NULL |
EXTERN SCIP_RETCODE SCIPsdpiGetLhSides | ( | SCIP_SDPI * | sdpi, |
int | firstrow, | ||
int | lastrow, | ||
SCIP_Real * | lhss | ||
) |
EXTERN SCIP_RETCODE SCIPsdpiGetRhSides | ( | SCIP_SDPI * | sdpi, |
int | firstrow, | ||
int | lastrow, | ||
SCIP_Real * | rhss | ||
) |
gets current right-hand sides from SDP-interface
sdpi | SDP-interface structure |
firstrow | first row to get sides for |
lastrow | last row to get sides for |
rhss | pointer to store right-hand side values (memory of size lastvar - firstvar + 1 needs to be allocated) |
EXTERN SCIP_RETCODE SCIPsdpiSolve | ( | SCIP_SDPI * | sdpi, |
SCIP_Real * | starty, | ||
int * | startZnblocknonz, | ||
int ** | startZrow, | ||
int ** | startZcol, | ||
SCIP_Real ** | startZval, | ||
int * | startXnblocknonz, | ||
int ** | startXrow, | ||
int ** | startXcol, | ||
SCIP_Real ** | startXval, | ||
SCIP_SDPSOLVERSETTING | startsettings, | ||
SCIP_Bool | enforceslatercheck, | ||
SCIP_Real | timelimit | ||
) |
solves the SDP, as start optionally a starting point for the solver may be given, if it is NULL, the solver will start from scratch
sdpi | SDP-interface structure |
starty | NULL or dual vector y as starting point for the solver, this should have length nvars |
startZnblocknonz | dual matrix Z = sum Ai yi as starting point for the solver: number of nonzeros for each block, also length of corresponding row/col/val-arrays; or NULL |
startZrow | dual matrix Z = sum Ai yi as starting point for the solver: row indices for each block; may be NULL if startZnblocknonz = NULL |
startZcol | dual matrix Z = sum Ai yi as starting point for the solver: column indices for each block; may be NULL if startZnblocknonz = NULL |
startZval | dual matrix Z = sum Ai yi as starting point for the solver: values for each block; may be NULL if startZnblocknonz = NULL |
startXnblocknonz | primal matrix X as starting point for the solver: number of nonzeros for each block, also length of corresponding row/col/val-arrays; or NULL |
startXrow | primal matrix X as starting point for the solver: row indices for each block; may be NULL if startXnblocknonz = NULL |
startXcol | primal matrix X as starting point for the solver: column indices for each block; may be NULL if startXnblocknonz = NULL |
startXval | primal matrix X as starting point for the solver: values for each block; may be NULL if startXnblocknonz = NULL |
startsettings | settings used to start with in SDPA, currently not used for DSDP or MOSEK, set this to SCIP_SDPSOLVERSETTING_UNSOLVED to ignore it and start from scratch |
enforceslatercheck | always check for Slater condition in case the problem could not be solved and printf the solution of this check |
timelimit | after this many seconds solving will be aborted (currently only implemented for DSDP and MOSEK) |
Definition at line 2451 of file sdpi.c.
References BMS_CALL, checkAllFixed(), checkFixedFeasibilitySdp(), checkSlaterCondition(), compConstMatAfterFixings(), computeLpLhsRhsAfterFixings(), findEmptyRowColsSDP(), MIN_GAPTOL, SCIP_CALL_PARAM, SCIP_SDPPAR_GAPTOL, SCIP_SDPSLATER_NOINFO, SCIP_SDPSOLVERSETTING_UNSOLVED, SCIPsdpiInfinity(), SCIPsdpiIsInfinity(), SCIPsdpiSolverGetIterations(), SCIPsdpiSolverGetObjval(), SCIPsdpiSolverGetSdpCalls(), SCIPsdpiSolverIncreaseCounter(), SCIPsdpiSolverInfinity(), SCIPsdpiSolverIsAcceptable(), SCIPsdpiSolverIsDualInfeasible(), SCIPsdpiSolverIsOptimal(), SCIPsdpiSolverIsTimelimExc(), SCIPsdpiSolverLoadAndSolve(), SCIPsdpiSolverLoadAndSolveWithPenalty(), SCIPsdpiSolverSetRealpar(), and SCIPsdpiSolverWasSolved().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_Bool SCIPsdpiWasSolved | ( | SCIP_SDPI * | sdpi | ) |
returns whether a solve method was successfully called after the last modification of the SDP
sdpi | SDP-interface structure |
Definition at line 2847 of file sdpi.c.
References SCIPsdpiSolverWasSolved().
Referenced by calcRelax(), SCIPrelaxSdpComputeAnalyticCenters(), and SCIPsdpiSolvedOrig().
EXTERN SCIP_Bool SCIPsdpiSolvedOrig | ( | SCIP_SDPI * | sdpi | ) |
returns whether the original problem was solved, if SCIPsdpiWasSolved = true and SCIPsdpiSolvedOrig = false, then a penalty formulation was solved
sdpi | SDP-interface structure |
Definition at line 2857 of file sdpi.c.
References SCIPsdpiWasSolved().
Referenced by calcRelax(), SCIPrelaxSdpComputeAnalyticCenters(), and SCIPrelaxSdpSolvedOrig().
EXTERN SCIP_Bool SCIPsdpiFeasibilityKnown | ( | SCIP_SDPI * | sdpi | ) |
returns true if the solver could determine whether the problem is feasible, so it returns true if the solver knows that the problem is feasible/infeasible/unbounded, it returns false if the solver does not know anything about the feasibility status and thus the functions IsPrimalFeasible etc. should not be used
sdpi | SDP-interface structure |
Definition at line 2869 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverFeasibilityKnown().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetSolFeasibility | ( | SCIP_SDPI * | sdpi, |
SCIP_Bool * | primalfeasible, | ||
SCIP_Bool * | dualfeasible | ||
) |
gets information about primal and dual feasibility of the current SDP-solution
sdpi | SDP-interface structure |
primalfeasible | pointer to store the primal feasibility status |
dualfeasible | pointer to store the dual feasibility status |
Definition at line 2883 of file sdpi.c.
References CHECK_IF_SOLVED, and SCIPsdpiSolverGetSolFeasibility().
EXTERN SCIP_Bool SCIPsdpiIsPrimalUnbounded | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be primal unbounded; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 2912 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsPrimalUnbounded().
EXTERN SCIP_Bool SCIPsdpiIsPrimalInfeasible | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be primal infeasible; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 2935 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsPrimalInfeasible().
EXTERN SCIP_Bool SCIPsdpiIsPrimalFeasible | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be primal feasible; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 2958 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsPrimalFeasible().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_Bool SCIPsdpiIsDualUnbounded | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be dual unbounded; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 2981 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsDualUnbounded().
Referenced by calcRelax(), and SCIP_DECL_RELAXEXEC().
EXTERN SCIP_Bool SCIPsdpiIsDualInfeasible | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be dual infeasible; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 3004 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsDualInfeasible().
Referenced by calcRelax().
EXTERN SCIP_Bool SCIPsdpiIsDualFeasible | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP is proven to be dual feasible; returns FALSE with a debug-message if the solver could not determine feasibility
sdpi | SDP-interface structure |
Definition at line 3027 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsDualFeasible().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_Bool SCIPsdpiIsConverged | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff the solver converged
sdpi | SDP-interface structure |
Definition at line 3049 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsConverged().
EXTERN SCIP_Bool SCIPsdpiIsObjlimExc | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff the objective limit was reached
sdpi | SDP-interface structure |
Definition at line 3071 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsObjlimExc().
Referenced by calcRelax().
EXTERN SCIP_Bool SCIPsdpiIsIterlimExc | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff the iteration limit was reached
sdpi | SDP-interface structure |
Definition at line 3093 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsIterlimExc().
EXTERN SCIP_Bool SCIPsdpiIsTimelimExc | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff the time limit was reached
sdpi | SDP-interface structure |
Definition at line 3115 of file sdpi.c.
References SCIPsdpiSolverIsTimelimExc().
Referenced by calcRelax().
EXTERN int SCIPsdpiGetInternalStatus | ( | SCIP_SDPI * | sdpi | ) |
returns the internal solution status of the solver, which has the following meaning:
-1: solver was not started
0: converged
1: infeasible start
2: numerical problems
3: objective limit reached
4: iteration limit reached
5: time limit reached
6: user termination
7: other
sdpi | SDP-interface structure |
Definition at line 3150 of file sdpi.c.
References SCIPsdpiSolverGetInternalStatus().
EXTERN SCIP_Bool SCIPsdpiIsOptimal | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP was solved to optimality, meaning the solver converged and returned primal and dual feasible solutions
sdpi | SDP-interface structure |
Definition at line 3176 of file sdpi.c.
References CHECK_IF_SOLVED_BOOL, and SCIPsdpiSolverIsOptimal().
EXTERN SCIP_Bool SCIPsdpiIsAcceptable | ( | SCIP_SDPI * | sdpi | ) |
returns TRUE iff SDP was solved to optimality or some other status was reached that is still acceptable inside a Branch & Bound framework
sdpi | SDP-interface structure |
Definition at line 3199 of file sdpi.c.
References SCIPsdpiSolverIsAcceptable().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetObjval | ( | SCIP_SDPI * | sdpi, |
SCIP_Real * | objval | ||
) |
gets objective value of solution
sdpi | SDP-interface structure |
objval | pointer to store the objective value |
Definition at line 3225 of file sdpi.c.
References CHECK_IF_SOLVED, and SCIPsdpiSolverGetObjval().
Referenced by SCIPsdpiGetSol().
EXTERN SCIP_RETCODE SCIPsdpiGetLowerObjbound | ( | SCIP_SDPI * | sdpi, |
SCIP_Real * | objlb | ||
) |
gets the best lower bound on the objective (this is equal to objval, if the problem was solved successfully, but can also give a bound if we did not get a feasible solution using the penalty approach)
sdpi | SDP-interface structure |
objlb | pointer to store the lower bound on the objective value |
Definition at line 3260 of file sdpi.c.
References SCIPsdpiInfinity(), and SCIPsdpiSolverGetObjval().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetSol | ( | SCIP_SDPI * | sdpi, |
SCIP_Real * | objval, | ||
SCIP_Real * | dualsol, | ||
int * | dualsollength | ||
) |
gets dual solution vector for feasible SDPs, if dualsollength isn't equal to the number of variables this will return the needed length and a debug message
sdpi | SDP-interface structure |
objval | pointer to store the objective value, may be NULL if not needed |
dualsol | pointer to store the dual solution vector, may be NULL if not needed |
dualsollength | length of the dualsol vector, must be 0 if dualsol is NULL, if this is less than the number of variables in the SDP, a debug-message will be thrown and this is set to the needed value |
Definition at line 3309 of file sdpi.c.
References CHECK_IF_SOLVED, SCIPsdpiGetObjval(), and SCIPsdpiSolverGetSol().
Referenced by calcRelax(), SCIP_DECL_RELAXEXEC(), SCIPrelaxSdpComputeAnalyticCenters(), and SCIPrelaxSdpGetRelaxSol().
EXTERN SCIP_RETCODE SCIPsdpiGetPreoptimalPrimalNonzeros | ( | SCIP_SDPI * | sdpi, |
int | nblocks, | ||
int * | startXnblocknonz | ||
) |
return number of nonzeros for each block of the primal solution matrix X for the preoptimal solution
sdpi | pointer to an SDP-interface structure |
nblocks | length of startXnblocknonz (should be nsdpblocks + 1) |
startXnblocknonz | pointer to store number of nonzeros for row/col/val-arrays in each block or first entry -1 if no primal solution is available |
Definition at line 3360 of file sdpi.c.
References SCIPsdpiSolverGetPreoptimalPrimalNonzeros().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetPreoptimalSol | ( | SCIP_SDPI * | sdpi, |
SCIP_Bool * | success, | ||
SCIP_Real * | dualsol, | ||
int * | dualsollength, | ||
int | nblocks, | ||
int * | startXnblocknonz, | ||
int ** | startXrow, | ||
int ** | startXcol, | ||
SCIP_Real ** | startXval | ||
) |
gets preoptimal dual solution vector and primal matrix for warmstarting purposes
sdpi | SDP-interface structure |
success | could a preoptimal solution be returned ? |
dualsol | pointer to store the dual solution vector, may be NULL if not needed |
dualsollength | length of the dual sol vector, must be 0 if dualsol is NULL, if this is less than the number of variables in the SDP, a DebugMessage will be thrown and this is set to the needed value |
nblocks | length of startXnblocknonz (should be nsdpblocks + 1) or -1 if no primal matrix should be returned |
startXnblocknonz | input: allocated memory for row/col/val-arrays in each block (or NULL if nblocks = -1) output: number of nonzeros in each block or first entry -1 if no primal solution is available |
startXrow | pointer to store row indices of X (or NULL if nblocks = -1) |
startXcol | pointer to store column indices of X (or NULL if nblocks = -1) |
startXval | pointer to store values of X (or NULL if nblocks = -1) |
Definition at line 3398 of file sdpi.c.
References SCIPsdpiSolverGetPreoptimalSol().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetPrimalBoundVars | ( | SCIP_SDPI * | sdpi, |
SCIP_Real * | lbvars, | ||
SCIP_Real * | ubvars, | ||
int * | arraylength | ||
) |
gets the primal variables corresponding to the lower and upper variable-bounds in the dual problem, the last input should specify the length of the arrays, if this is less than the number of variables, the needed length will be returned and a debug-message thrown
sdpi | pointer to an SDP-interface structure |
lbvars | pointer to store the values of the variables corresponding to lower bounds in the dual problems |
ubvars | pointer to store the values of the variables corresponding to upper bounds in the dual problems |
arraylength | input: length of lbvars and ubvars output: number of elements inserted into lbvars/ubvars (or needed length if it was not sufficient) |
Definition at line 3469 of file sdpi.c.
References CHECK_IF_SOLVED, and SCIPsdpiSolverGetPrimalBoundVars().
Referenced by SCIPrelaxSdpGetPrimalBoundVars().
EXTERN SCIP_RETCODE SCIPsdpiGetPrimalNonzeros | ( | SCIP_SDPI * | sdpi, |
int | nblocks, | ||
int * | startXnblocknonz | ||
) |
return number of nonzeros for each block of the primal solution matrix X
sdpi | pointer to an SDP-interface structure |
nblocks | length of startXnblocknonz (should be nsdpblocks + 1) |
startXnblocknonz | pointer to store number of nonzeros for row/col/val-arrays in each block |
Definition at line 3501 of file sdpi.c.
References SCIPsdpiSolverGetPrimalNonzeros().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiGetPrimalMatrix | ( | SCIP_SDPI * | sdpi, |
int | nblocks, | ||
int * | startXnblocknonz, | ||
int ** | startXrow, | ||
int ** | startXcol, | ||
SCIP_Real ** | startXval | ||
) |
returns the primal matrix X
sdpi | pointer to an SDP-interface structure |
nblocks | length of startXnblocknonz (should be nsdpblocks + 1) |
startXnblocknonz | input: allocated memory for row/col/val-arrays in each block output: number of nonzeros in each block |
startXrow | pointer to store row indices of X |
startXcol | pointer to store column indices of X |
startXval | pointer to store values of X |
Definition at line 3529 of file sdpi.c.
References SCIPsdpiSolverGetPrimalMatrix().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_Real SCIPsdpiGetMaxPrimalEntry | ( | SCIP_SDPI * | sdpi | ) |
return the maximum absolute value of the optimal primal matrix
sdpi | pointer to an SDP-interface structure |
Definition at line 3558 of file sdpi.c.
References SCIPsdpiSolverGetMaxPrimalEntry().
Referenced by calcRelax().
EXTERN SCIP_RETCODE SCIPsdpiGetIterations | ( | SCIP_SDPI * | sdpi, |
int * | iterations | ||
) |
gets the number of SDP-iterations of the last solve call
sdpi | SDP-interface structure |
iterations | pointer to store the number of iterations of the last solve call |
Definition at line 3568 of file sdpi.c.
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiGetSdpCalls | ( | SCIP_SDPI * | sdpi, |
int * | calls | ||
) |
gets the number of calls to the SDP-solver for the last solve call
sdpi | SDP-interface structure |
calls | pointer to store the number of calls to the SDP-solver for the last solve call |
Definition at line 3582 of file sdpi.c.
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiSettingsUsed | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPSOLVERSETTING * | usedsetting | ||
) |
returns which settings the SDP-solver used in the last solve call
sdpi | SDP-interface structure |
usedsetting | the setting used by the SDP-solver |
Definition at line 3596 of file sdpi.c.
References SCIP_SDPSOLVERSETTING_PENALTY, SCIP_SDPSOLVERSETTING_UNSOLVED, and SCIPsdpiSolverSettingsUsed().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiSlaterSettings | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPSLATERSETTING * | slatersetting | ||
) |
returns which settings the SDP-solver used in the last solve call and whether primal and dual Slater condition were fullfilled
sdpi | SDP-interface structure |
slatersetting | the combination of Slater conditions and successfull settings |
Definition at line 3633 of file sdpi.c.
References SCIP_SDPSLATER_HOLDS, SCIP_SDPSLATER_INF, SCIP_SDPSLATER_NOINFO, SCIP_SDPSLATER_NOT, SCIP_SDPSLATERSETTING_BOUNDEDINFEASIBLE, SCIP_SDPSLATERSETTING_BOUNDEDNOSLATER, SCIP_SDPSLATERSETTING_BOUNDEDWSLATER, SCIP_SDPSLATERSETTING_NOINFO, SCIP_SDPSLATERSETTING_PENALTYINFEASIBLE, SCIP_SDPSLATERSETTING_PENALTYNOSLATER, SCIP_SDPSLATERSETTING_PENALTYWSLATER, SCIP_SDPSLATERSETTING_STABLEINFEASIBLE, SCIP_SDPSLATERSETTING_STABLENOSLATER, SCIP_SDPSLATERSETTING_STABLEWSLATER, SCIP_SDPSLATERSETTING_UNSOLVEDINFEASIBLE, SCIP_SDPSLATERSETTING_UNSOLVEDNOSLATER, SCIP_SDPSLATERSETTING_UNSOLVEDWSLATER, SCIP_SDPSLATERSETTING_UNSTABLEINFEASIBLE, SCIP_SDPSLATERSETTING_UNSTABLENOSLATER, SCIP_SDPSLATERSETTING_UNSTABLEWSLATER, SCIP_SDPSOLVERSETTING_FAST, SCIP_SDPSOLVERSETTING_MEDIUM, SCIP_SDPSOLVERSETTING_STABLE, SCIP_SDPSOLVERSETTING_UNSOLVED, SCIPsdpiSolverInfinity(), and SCIPsdpiSolverSettingsUsed().
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_RETCODE SCIPsdpiSlater | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPSLATER * | primalslater, | ||
SCIP_SDPSLATER * | dualslater | ||
) |
returns whether primal and dual Slater condition held for last solved SDP
sdpi | SDP-interface structure |
primalslater | pointer to save whether primal Slater condition held |
dualslater | pointer to save whether dual Slater condition held |
Definition at line 3938 of file sdpi.c.
References SCIP_SDPSLATER_NOINFO.
Referenced by calcRelax(), and SCIPrelaxSdpComputeAnalyticCenters().
EXTERN SCIP_Real SCIPsdpiInfinity | ( | SCIP_SDPI * | sdpi | ) |
returns value treated as infinity in the SDP-solver
sdpi | SDP-interface structure |
Definition at line 3982 of file sdpi.c.
References SCIPsdpiSolverInfinity().
Referenced by calcRelax(), computeLpLhsRhsAfterFixings(), SCIP_DECL_RELAXINITSOL(), SCIPsdpiGetLowerObjbound(), SCIPsdpiIsInfinity(), and SCIPsdpiSolve().
EXTERN SCIP_Bool SCIPsdpiIsInfinity | ( | SCIP_SDPI * | sdpi, |
SCIP_Real | val | ||
) |
checks if given value is treated as (plus or minus) infinity in the SDP-solver
sdpi | SDP-interface structure |
val | value to be checked for infinity |
Definition at line 3992 of file sdpi.c.
References SCIPsdpiInfinity().
Referenced by checkSlaterCondition(), and SCIPsdpiSolve().
EXTERN SCIP_RETCODE SCIPsdpiGetRealpar | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPPARAM | type, | ||
SCIP_Real * | dval | ||
) |
gets floating point parameter of SDP-interface
sdpi | SDP-interface structure |
type | parameter number |
dval | pointer to store the parameter value |
Definition at line 4003 of file sdpi.c.
References SCIP_CALL_PARAM, SCIP_SDPPAR_EPSILON, SCIP_SDPPAR_FEASTOL, SCIP_SDPPAR_GAPTOL, SCIP_SDPPAR_LAMBDASTAR, SCIP_SDPPAR_MAXPENALTYPARAM, SCIP_SDPPAR_OBJLIMIT, SCIP_SDPPAR_PENALTYPARAM, SCIP_SDPPAR_SDPSOLVERFEASTOL, SCIP_SDPPAR_WARMSTARTPOGAP, and SCIPsdpiSolverGetRealpar().
Referenced by SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiSetRealpar | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPPARAM | type, | ||
SCIP_Real | dval | ||
) |
sets floating point parameter of SDP-interface
sdpi | SDP-interface structure |
type | parameter number |
dval | parameter value |
Definition at line 4050 of file sdpi.c.
References SCIP_CALL_PARAM, SCIP_CALL_PARAM_IGNORE_UNKNOWN, SCIP_SDPPAR_EPSILON, SCIP_SDPPAR_FEASTOL, SCIP_SDPPAR_GAPTOL, SCIP_SDPPAR_LAMBDASTAR, SCIP_SDPPAR_MAXPENALTYPARAM, SCIP_SDPPAR_OBJLIMIT, SCIP_SDPPAR_PENALTYPARAM, SCIP_SDPPAR_SDPSOLVERFEASTOL, SCIP_SDPPAR_WARMSTARTPOGAP, and SCIPsdpiSolverSetRealpar().
Referenced by calcRelax(), and SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiGetIntpar | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPPARAM | type, | ||
int * | ival | ||
) |
gets integer parameter of SDP-interface
sdpi | SDP-interface structure |
type | parameter number |
ival | pointer to store the parameter value |
Definition at line 4099 of file sdpi.c.
References SCIP_CALL_PARAM, SCIP_SDPPAR_NPENALTYINCR, SCIP_SDPPAR_NTHREADS, SCIP_SDPPAR_SDPINFO, SCIP_SDPPAR_SLATERCHECK, and SCIPsdpiSolverGetIntpar().
EXTERN SCIP_RETCODE SCIPsdpiSetIntpar | ( | SCIP_SDPI * | sdpi, |
SCIP_SDPPARAM | type, | ||
int | ival | ||
) |
sets integer parameter of SDP-interface
sdpi | SDP-interface structure |
type | parameter number |
ival | parameter value |
Definition at line 4129 of file sdpi.c.
References SCIP_CALL_PARAM, SCIP_SDPPAR_NPENALTYINCR, SCIP_SDPPAR_NTHREADS, SCIP_SDPPAR_SDPINFO, SCIP_SDPPAR_SLATERCHECK, and SCIPsdpiSolverSetIntpar().
Referenced by SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiComputeLambdastar | ( | SCIP_SDPI * | sdpi, |
SCIP_Real | maxguess | ||
) |
compute and set lambdastar (only used for SDPA)
sdpi | SDP-interface structure |
maxguess | maximum guess for lambda star of all SDP-constraints |
Definition at line 4161 of file sdpi.c.
References SCIPsdpiSolverComputeLambdastar().
Referenced by SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiComputePenaltyparam | ( | SCIP_SDPI * | sdpi, |
SCIP_Real | maxcoeff, | ||
SCIP_Real * | penaltyparam | ||
) |
compute and set the penalty parameter
sdpi | SDP-interface structure |
maxcoeff | maximum objective coefficient |
penaltyparam | the computed penalty parameter |
Definition at line 4170 of file sdpi.c.
References SCIPsdpiSolverComputePenaltyparam().
Referenced by SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiComputeMaxPenaltyparam | ( | SCIP_SDPI * | sdpi, |
SCIP_Real | penaltyparam, | ||
SCIP_Real * | maxpenaltyparam | ||
) |
compute and set the maximum penalty parameter
sdpi | SDP-interface structure |
penaltyparam | the initial penalty parameter |
maxpenaltyparam | the computed maximum penalty parameter |
Definition at line 4184 of file sdpi.c.
References SCIPsdpiSolverComputeMaxPenaltyparam().
Referenced by SCIP_DECL_RELAXINITSOL().
EXTERN SCIP_RETCODE SCIPsdpiReadSDP | ( | SCIP_SDPI * | sdpi, |
const char * | fname | ||
) |