SCIP-SDP
3.2.0
|
interface for DSDP More...
Go to the source code of this file.
Macros | |
#define | PENALTYBOUNDTOL 1E-3 |
#define | MIN_PENALTYPARAM 1e5 |
#define | MAX_PENALTYPARAM 1e12 |
#define | PENALTYPARAM_FACTOR 1e4 |
#define | MAX_MAXPENALTYPARAM 1e15 |
#define | MAXPENALTYPARAM_FACTOR 1e6 |
#define | INFEASFEASTOLCHANGE 0.1 |
#define | INFEASMINFEASTOL 1E-9 |
#define | DSDP_CALL(x) |
#define | DSDP_CALL_BOOL(x) |
#define | DSDP_CALL_INT(x) |
#define | DSDP_CALLM(x) |
#define | BMS_CALL(x) |
#define | TIMEOFDAY_CALL(x) |
#define | CHECK_IF_SOLVED(sdpisolver) |
#define | CHECK_IF_SOLVED_BOOL(sdpisolver) |
Typedefs | |
typedef struct Timings | Timings |
Functions | |
static int | compLowerTriangPos (int i, int j) |
static SCIP_Bool | isFixed (SCIP_SDPISOLVER *sdpisolver, SCIP_Real lb, SCIP_Real ub) |
static void | sortColRow (int *row, int *col, SCIP_Real *val, int length) |
static int | checkTimeLimitDSDP (DSDP dsdp, void *ctx) |
static int | checkGapSetPreoptimalSol (DSDP dsdp, void *ctx) |
Miscellaneous Methods | |
const char * | SCIPsdpiSolverGetSolverName (void) |
const char * | SCIPsdpiSolverGetSolverDesc (void) |
void * | SCIPsdpiSolverGetSolverPointer (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Real | SCIPsdpiSolverGetDefaultSdpiSolverFeastol (void) |
SCIP_Real | SCIPsdpiSolverGetDefaultSdpiSolverGaptol (void) |
int | SCIPsdpiSolverGetDefaultSdpiSolverNpenaltyIncreases (void) |
SCIP_Bool | SCIPsdpiSolverDoesWarmstartNeedPrimal (void) |
SDPI Creation and Destruction Methods | |
SCIP_RETCODE | SCIPsdpiSolverCreate (SCIP_SDPISOLVER **sdpisolver, SCIP_MESSAGEHDLR *messagehdlr, BMS_BLKMEM *blkmem, BMS_BUFMEM *bufmem) |
SCIP_RETCODE | SCIPsdpiSolverFree (SCIP_SDPISOLVER **sdpisolver) |
SCIP_RETCODE | SCIPsdpiSolverIncreaseCounter (SCIP_SDPISOLVER *sdpisolver) |
SCIP_RETCODE | SCIPsdpiSolverResetCounter (SCIP_SDPISOLVER *sdpisolver) |
Solving Methods | |
SCIP_RETCODE | SCIPsdpiSolverLoadAndSolve (SCIP_SDPISOLVER *sdpisolver, 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 **indchanges, int *nremovedinds, int *blockindchanges, int nremovedblocks, int nlpcons, int noldlpcons, SCIP_Real *lplhs, SCIP_Real *lprhs, int *rownactivevars, int lpnnonz, int *lprow, int *lpcol, SCIP_Real *lpval, 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_Real timelimit) |
SCIP_RETCODE | SCIPsdpiSolverLoadAndSolveWithPenalty (SCIP_SDPISOLVER *sdpisolver, SCIP_Real penaltyparam, SCIP_Bool withobj, SCIP_Bool rbound, 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 **indchanges, int *nremovedinds, int *blockindchanges, int nremovedblocks, int nlpcons, int noldlpcons, SCIP_Real *lplhs, SCIP_Real *lprhs, int *rownactivevars, int lpnnonz, int *lprow, int *lpcol, SCIP_Real *lpval, 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_Real timelimit, SCIP_Bool *feasorig, SCIP_Bool *penaltybound) |
Solution Information Methods | |
SCIP_Bool | SCIPsdpiSolverWasSolved (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverFeasibilityKnown (SCIP_SDPISOLVER *sdpisolver) |
SCIP_RETCODE | SCIPsdpiSolverGetSolFeasibility (SCIP_SDPISOLVER *sdpisolver, SCIP_Bool *primalfeasible, SCIP_Bool *dualfeasible) |
SCIP_Bool | SCIPsdpiSolverIsPrimalUnbounded (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsPrimalInfeasible (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsPrimalFeasible (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsDualUnbounded (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsDualInfeasible (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsDualFeasible (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsConverged (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsObjlimExc (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsIterlimExc (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsTimelimExc (SCIP_SDPISOLVER *sdpisolver) |
int | SCIPsdpiSolverGetInternalStatus (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsOptimal (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsAcceptable (SCIP_SDPISOLVER *sdpisolver) |
SCIP_RETCODE | SCIPsdpiSolverIgnoreInstability (SCIP_SDPISOLVER *sdpisolver, SCIP_Bool *success) |
SCIP_RETCODE | SCIPsdpiSolverGetObjval (SCIP_SDPISOLVER *sdpisolver, SCIP_Real *objval) |
SCIP_RETCODE | SCIPsdpiSolverGetSol (SCIP_SDPISOLVER *sdpisolver, SCIP_Real *objval, SCIP_Real *dualsol, int *dualsollength) |
SCIP_RETCODE | SCIPsdpiSolverGetPreoptimalPrimalNonzeros (SCIP_SDPISOLVER *sdpisolver, int nblocks, int *startXnblocknonz) |
SCIP_RETCODE | SCIPsdpiSolverGetPreoptimalSol (SCIP_SDPISOLVER *sdpisolver, SCIP_Bool *success, SCIP_Real *dualsol, int *dualsollength, int nblocks, int *startXnblocknonz, int **startXrow, int **startXcol, SCIP_Real **startXval) |
SCIP_RETCODE | SCIPsdpiSolverGetPrimalBoundVars (SCIP_SDPISOLVER *sdpisolver, SCIP_Real *lbvars, SCIP_Real *ubvars, int *arraylength) |
SCIP_RETCODE | SCIPsdpiSolverGetPrimalNonzeros (SCIP_SDPISOLVER *sdpisolver, int nblocks, int *startXnblocknonz) |
SCIP_RETCODE | SCIPsdpiSolverGetPrimalMatrix (SCIP_SDPISOLVER *sdpisolver, int nblocks, int *startXnblocknonz, int **startXrow, int **startXcol, SCIP_Real **startXval) |
SCIP_Real | SCIPsdpiSolverGetMaxPrimalEntry (SCIP_SDPISOLVER *sdpisolver) |
SCIP_RETCODE | SCIPsdpiSolverGetIterations (SCIP_SDPISOLVER *sdpisolver, int *iterations) |
SCIP_RETCODE | SCIPsdpiSolverGetSdpCalls (SCIP_SDPISOLVER *sdpisolver, int *calls) |
SCIP_RETCODE | SCIPsdpiSolverSettingsUsed (SCIP_SDPISOLVER *sdpisolver, SCIP_SDPSOLVERSETTING *usedsetting) |
Numerical Methods | |
SCIP_Real | SCIPsdpiSolverInfinity (SCIP_SDPISOLVER *sdpisolver) |
SCIP_Bool | SCIPsdpiSolverIsInfinity (SCIP_SDPISOLVER *sdpisolver, SCIP_Real val) |
SCIP_RETCODE | SCIPsdpiSolverGetRealpar (SCIP_SDPISOLVER *sdpisolver, SCIP_SDPPARAM type, SCIP_Real *dval) |
SCIP_RETCODE | SCIPsdpiSolverSetRealpar (SCIP_SDPISOLVER *sdpisolver, SCIP_SDPPARAM type, SCIP_Real dval) |
SCIP_RETCODE | SCIPsdpiSolverGetIntpar (SCIP_SDPISOLVER *sdpisolver, SCIP_SDPPARAM type, int *ival) |
SCIP_RETCODE | SCIPsdpiSolverSetIntpar (SCIP_SDPISOLVER *sdpisolver, SCIP_SDPPARAM type, int ival) |
SCIP_RETCODE | SCIPsdpiSolverComputeLambdastar (SCIP_SDPISOLVER *sdpisolver, SCIP_Real maxguess) |
SCIP_RETCODE | SCIPsdpiSolverComputePenaltyparam (SCIP_SDPISOLVER *sdpisolver, SCIP_Real maxcoeff, SCIP_Real *penaltyparam) |
SCIP_RETCODE | SCIPsdpiSolverComputeMaxPenaltyparam (SCIP_SDPISOLVER *sdpisolver, SCIP_Real penaltyparam, SCIP_Real *maxpenaltyparam) |
File Interface Methods | |
SCIP_RETCODE | SCIPsdpiSolverReadSDP (SCIP_SDPISOLVER *sdpisolver, const char *fname) |
SCIP_RETCODE | SCIPsdpiSolverWriteSDP (SCIP_SDPISOLVER *sdpisolver, const char *fname) |
interface for DSDP
Definition in file sdpisolver_dsdp.c.
#define PENALTYBOUNDTOL 1E-3 |
if the relative gap between Tr(X) and penaltyparam for a primal solution of the penaltyformulation is bigger than this value, it will be reported to the sdpi
Definition at line 59 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
#define MIN_PENALTYPARAM 1e5 |
if the penalty parameter is to be computed, this is the minimum value it will take
Definition at line 63 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverComputePenaltyparam().
#define MAX_PENALTYPARAM 1e12 |
if the penalty parameter is to be computed, this is the maximum value it will take
Definition at line 64 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverComputePenaltyparam().
#define PENALTYPARAM_FACTOR 1e4 |
if the penalty parameter is to be computed, the maximal objective coefficient will be multiplied by this
Definition at line 65 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverComputePenaltyparam().
#define MAX_MAXPENALTYPARAM 1e15 |
if the maximum penaltyparameter is to be computed, this is the maximum value it will take
Definition at line 66 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverComputeMaxPenaltyparam().
#define MAXPENALTYPARAM_FACTOR 1e6 |
if the maximum penaltyparameter is to be computed, it will be set to penaltyparam * this
Definition at line 67 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverComputeMaxPenaltyparam().
#define INFEASFEASTOLCHANGE 0.1 |
change feastol by this factor if the solution was found to be infeasible with regards to feastol
Definition at line 68 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
#define INFEASMINFEASTOL 1E-9 |
minimum value for feasibility tolerance when encountering problems with regards to tolerance
Definition at line 69 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
#define DSDP_CALL | ( | x | ) |
Calls a DSDP-Function and transforms the return-code to a SCIP_LPERROR if needed.
Definition at line 73 of file sdpisolver_dsdp.c.
Referenced by checkTimeLimitDSDP(), SCIPsdpiSolverFree(), SCIPsdpiSolverGetObjval(), SCIPsdpiSolverGetPrimalBoundVars(), SCIPsdpiSolverGetSol(), SCIPsdpiSolverGetSolFeasibility(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
#define DSDP_CALL_BOOL | ( | x | ) |
Same as DSDP_CALL, but used for functions returning a boolean.
Definition at line 85 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverFeasibilityKnown(), SCIPsdpiSolverIsConverged(), SCIPsdpiSolverIsDualFeasible(), SCIPsdpiSolverIsDualInfeasible(), SCIPsdpiSolverIsDualUnbounded(), SCIPsdpiSolverIsIterlimExc(), SCIPsdpiSolverIsPrimalFeasible(), SCIPsdpiSolverIsPrimalInfeasible(), and SCIPsdpiSolverIsPrimalUnbounded().
#define DSDP_CALL_INT | ( | x | ) |
Same as DSDP_CALL, but used for functions returning an int.
Definition at line 97 of file sdpisolver_dsdp.c.
Referenced by checkGapSetPreoptimalSol().
#define DSDP_CALLM | ( | x | ) |
Same as DSDP_CALL, but this will be used for initialization methods with memory allocation and return a SCIP_NOMEMORY if an error is produced.
Definition at line 109 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
#define BMS_CALL | ( | x | ) |
Checks if a BMSallocMemory-call was successfull, otherwise returns SCIP_NOMEMORY.
Definition at line 121 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverCreate(), SCIPsdpiSolverGetObjval(), SCIPsdpiSolverGetPrimalBoundVars(), SCIPsdpiSolverGetSol(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
#define TIMEOFDAY_CALL | ( | x | ) |
Calls a gettimeofday and transforms the return-code to a SCIP_ERROR if needed.
Definition at line 132 of file sdpisolver_dsdp.c.
Referenced by checkTimeLimitDSDP(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
#define CHECK_IF_SOLVED | ( | sdpisolver | ) |
This will be called in all functions that want to access solution information to check if the problem was solved since the last change of the problem.
Definition at line 144 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverGetObjval(), SCIPsdpiSolverGetPrimalBoundVars(), SCIPsdpiSolverGetSol(), and SCIPsdpiSolverGetSolFeasibility().
#define CHECK_IF_SOLVED_BOOL | ( | sdpisolver | ) |
This is the same as CHECK_IF_SOLVED, but will be called for methods returning a bool instead of a SCIP_RETURNCODE.
Definition at line 155 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverFeasibilityKnown(), SCIPsdpiSolverIsDualFeasible(), SCIPsdpiSolverIsDualInfeasible(), SCIPsdpiSolverIsDualUnbounded(), SCIPsdpiSolverIsIterlimExc(), SCIPsdpiSolverIsPrimalFeasible(), SCIPsdpiSolverIsPrimalInfeasible(), and SCIPsdpiSolverIsPrimalUnbounded().
typedef struct Timings Timings |
data used for checking the timelimit
|
static |
for given row and column (i,j) computes the position in the lower triangular part numbered from 0 to n(n+1)/2 - 1, this needs to be called for i >= j
i | row index |
j | column index |
Definition at line 225 of file sdpisolver_dsdp.c.
References isFixed().
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
|
static |
test if a lower bound lb is not smaller than an upper bound ub, meaning that lb > ub - epsilon
sdpisolver | pointer to an SDP-solver interface |
lb | lower bound |
ub | upper bound |
Definition at line 239 of file sdpisolver_dsdp.c.
References sortColRow().
Referenced by compLowerTriangPos(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
|
static |
sort the given row, col and val arrays first by non-decreasing col-indices, than for those with identical col-indices by non-increasing row-indices
row | row indices |
col | column indices |
val | values |
length | length of the given arrays |
Definition at line 255 of file sdpisolver_dsdp.c.
References checkTimeLimitDSDP().
Referenced by isFixed(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
|
static |
check the time limit after each iteration in DSDP
dsdp | DSDP-pointer |
ctx | pointer to data of iteration monitor |
Definition at line 283 of file sdpisolver_dsdp.c.
References checkGapSetPreoptimalSol(), DSDP_CALL, and TIMEOFDAY_CALL.
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty(), and sortColRow().
|
static |
check gap and set preoptimal solution if small enough
dsdp | DSDP-pointer |
ctx | pointer to data of iteration monitor |
Definition at line 318 of file sdpisolver_dsdp.c.
References DSDP_CALL_INT, and SCIPsdpiSolverGetSolverName().
Referenced by checkTimeLimitDSDP(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
const char* SCIPsdpiSolverGetSolverName | ( | void | ) |
gets name and version (if available) of SDP-solver
Definition at line 364 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetSolverDesc().
Referenced by checkGapSetPreoptimalSol().
const char* SCIPsdpiSolverGetSolverDesc | ( | void | ) |
gets description of SDP-solver (developer, webpage, ...)
Definition at line 372 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetSolverPointer().
Referenced by SCIPsdpiSolverGetSolverName().
void* SCIPsdpiSolverGetSolverPointer | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
gets pointer to 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.
sdpisolver | pointer to an SDP-solver interface |
Definition at line 385 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetDefaultSdpiSolverFeastol().
Referenced by SCIPsdpiSolverGetSolverDesc().
SCIP_Real SCIPsdpiSolverGetDefaultSdpiSolverFeastol | ( | void | ) |
gets default feasibility tolerance for SDP-solver in SCIP-SDP
Definition at line 394 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetDefaultSdpiSolverGaptol().
Referenced by SCIPsdpiSolverGetSolverPointer().
SCIP_Real SCIPsdpiSolverGetDefaultSdpiSolverGaptol | ( | void | ) |
gets default duality gap tolerance for SDP-solver in SCIP-SDP
Definition at line 403 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetDefaultSdpiSolverNpenaltyIncreases().
Referenced by SCIPsdpiSolverGetDefaultSdpiSolverFeastol().
int SCIPsdpiSolverGetDefaultSdpiSolverNpenaltyIncreases | ( | void | ) |
gets default number of increases of penalty parameter for SDP-solver in SCIP-SDP
Definition at line 411 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverDoesWarmstartNeedPrimal().
Referenced by SCIPsdpiSolverGetDefaultSdpiSolverGaptol().
SCIP_Bool SCIPsdpiSolverDoesWarmstartNeedPrimal | ( | void | ) |
Should primal solution values be saved for warmstarting purposes?
Definition at line 419 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverCreate().
Referenced by SCIPsdpiSolverGetDefaultSdpiSolverNpenaltyIncreases().
SCIP_RETCODE SCIPsdpiSolverCreate | ( | SCIP_SDPISOLVER ** | sdpisolver, |
SCIP_MESSAGEHDLR * | messagehdlr, | ||
BMS_BLKMEM * | blkmem, | ||
BMS_BUFMEM * | bufmem | ||
) |
creates an SDP solver interface
sdpisolver | pointer to an SDP-solver interface |
messagehdlr | message handler to use for printing messages, or NULL |
blkmem | block memory |
bufmem | buffer memory |
Definition at line 437 of file sdpisolver_dsdp.c.
References BMS_CALL, SCIP_SDPSOLVERSETTING_UNSOLVED, SCIPsdpiSolverFree(), and SCIPsdpiSolverInfinity().
Referenced by SCIPsdpiSolverDoesWarmstartNeedPrimal().
SCIP_RETCODE SCIPsdpiSolverFree | ( | SCIP_SDPISOLVER ** | sdpisolver | ) |
deletes an SDP solver interface
sdpisolver | pointer to an SDP-solver interface |
Definition at line 495 of file sdpisolver_dsdp.c.
References DSDP_CALL, and SCIPsdpiSolverIncreaseCounter().
Referenced by SCIPsdpiSolverCreate().
SCIP_RETCODE SCIPsdpiSolverIncreaseCounter | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
increases the SDP-Counter
sdpisolver | SDP-solver interface |
Definition at line 528 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverResetCounter().
Referenced by SCIPsdpiSolverFree().
SCIP_RETCODE SCIPsdpiSolverResetCounter | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
reset the SDP-Counter to zero
sdpisolver | SDP-solver interface |
Definition at line 540 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverLoadAndSolve().
Referenced by SCIPsdpiSolverIncreaseCounter().
SCIP_RETCODE SCIPsdpiSolverLoadAndSolve | ( | SCIP_SDPISOLVER * | sdpisolver, |
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 ** | indchanges, | ||
int * | nremovedinds, | ||
int * | blockindchanges, | ||
int | nremovedblocks, | ||
int | nlpcons, | ||
int | noldlpcons, | ||
SCIP_Real * | lplhs, | ||
SCIP_Real * | lprhs, | ||
int * | rownactivevars, | ||
int | lpnnonz, | ||
int * | lprow, | ||
int * | lpcol, | ||
SCIP_Real * | lpval, | ||
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_Real | timelimit | ||
) |
loads and solves an SDP
For the non-constant SDP- and the LP-part, the original arrays before fixings should be given, for the constant SDP-part the arrays AFTER fixings should be given. In addition, an array needs to be given, that for every block and every row/col index within that block either has value -1, meaning that this index should be deleted, or a non-negative integer stating the number of indices before it that are to be deleated, meaning that this index will be decreased by that number, in addition to that the total number of deleted indices for each block should be given. Optionally an array start may be given with a starting point for the solver (if this is NULL then the solver should start from scratch).
sdpisolver | SDP-solver interface |
nvars | number of variables |
obj | objective coefficients 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 that exist in each block |
sdpconstnnonz | number of nonzero elements in the constant matrices of the SDP-blocks AFTER FIXINGS |
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] AFTER FIXINGS |
sdpconstrow | pointers to row-indices for each block AFTER FIXINGS |
sdpconstcol | pointers to column-indices for each block AFTER FIXINGS |
sdpconstval | pointers to the values of the nonzeros for each block AFTER FIXINGS |
sdpnnonz | number of nonzero elements in the SDP-constraint-matrix |
sdpnblockvarnonz | entry [i][j] gives the number of nonzeros for block i and variable j, this is exactly the number of entries of sdp row/col/val [i][j] |
sdpvar | sdpvar[i][j] gives the sdp-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 |
sdpcol | pointer to the column-indices for each block and variable |
sdpval | values of SDP-constraint-matrix entries (may be NULL if sdpnnonz = 0) |
indchanges | changes needed to be done to the indices, if indchanges[block][nonz]=-1, then the index can be removed, otherwise it gives the number of indices removed before this |
nremovedinds | the number of rows/cols to be fixed for each block |
blockindchanges | block indizes will be modified by these, see indchanges |
nremovedblocks | number of empty blocks that should be removed |
nlpcons | number of active (at least two nonzeros) LP-constraints |
noldlpcons | number of LP-constraints including those with less than two active nonzeros |
lplhs | left-hand sides of active LP-rows after fixings (may be NULL if nlpcons = 0) |
lprhs | right-hand sides of active LP-rows after fixings (may be NULL if nlpcons = 0) |
rownactivevars | number of active variables for each LP-constraint |
lpnnonz | number of nonzero elements in the LP-constraint-matrix |
lprow | row-index for each entry in lpval-array, might get sorted (may be NULL if lpnnonz = 0) |
lpcol | column-index for each entry in lpval-array, might get sorted (may be NULL if lpnnonz = 0) |
lpval | values of LP-constraint-matrix entries, might get sorted (may be NULL if lpnnonz = 0) |
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 ans MOSEK, set this to SCIP_SDPSOLVERSETTING_UNSOLVED to ignore it and start from scratch |
timelimit | after this many seconds solving will be aborted (currently only implemented for DSDP and MOSEK) |
Definition at line 577 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverLoadAndSolveWithPenalty().
Referenced by SCIPsdpiSolverResetCounter().
SCIP_RETCODE SCIPsdpiSolverLoadAndSolveWithPenalty | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real | penaltyparam, | ||
SCIP_Bool | withobj, | ||
SCIP_Bool | rbound, | ||
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 ** | indchanges, | ||
int * | nremovedinds, | ||
int * | blockindchanges, | ||
int | nremovedblocks, | ||
int | nlpcons, | ||
int | noldlpcons, | ||
SCIP_Real * | lplhs, | ||
SCIP_Real * | lprhs, | ||
int * | rownactivevars, | ||
int | lpnnonz, | ||
int * | lprow, | ||
int * | lpcol, | ||
SCIP_Real * | lpval, | ||
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_Real | timelimit, | ||
SCIP_Bool * | feasorig, | ||
SCIP_Bool * | penaltybound | ||
) |
loads and solves an SDP using a penalty formulation
The penalty formulation of the SDP is:
Alternatively withobj can be set to false to set b to 0 and only check for feasibility (if the optimal objective value is bigger than 0 the problem is infeasible, otherwise it's feasible), and rbound can be set to false to remove the non-negativity condition on r. For the non-constant SDP- and the LP-part the original arrays before fixings should be given, for the constant SDP-part the arrays AFTER fixings should be given. In addition, an array needs to be given, that for every block and every row/col index within that block either has value -1, meaning that this index should be deleted, or a non-negative integer stating the number of indices before it that are to be deleated, meaning that this index will be decreased by that number. Moreover, the total number of deleted indices for each block should be given. An optional starting point for the solver may be given; if it is NULL, the solver will start from scratch.
sdpisolver | SDP-solver interface |
penaltyparam | the Gamma above, needs to be >= 0 |
withobj | if this is false the objective is set to 0 |
rbound | should r be non-negative ? |
nvars | number of variables |
obj | objective coefficients 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 that exist in each block |
sdpconstnnonz | number of nonzero elements in the constant matrices of the SDP-blocks AFTER FIXINGS |
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] AFTER FIXINGS |
sdpconstrow | pointers to row-indices for each block AFTER FIXINGS |
sdpconstcol | pointers to column-indices for each block AFTER FIXINGS |
sdpconstval | pointers to the values of the nonzeros for each block AFTER FIXINGS |
sdpnnonz | number of nonzero elements in the SDP-constraint-matrix |
sdpnblockvarnonz | entry [i][j] gives the number of nonzeros for block i and variable j, this is exactly the number of entries of sdp row/col/val [i][j] |
sdpvar | sdpvar[i][j] gives the sdp-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 |
sdpcol | pointer to the column-indices for each block and variable |
sdpval | values of SDP-constraint-matrix entries (may be NULL if sdpnnonz = 0) |
indchanges | changes needed to be done to the indices, if indchanges[block][nonz]=-1, then the index can be removed, otherwise it gives the number of indices removed before this |
nremovedinds | the number of rows/cols to be fixed for each block |
blockindchanges | block indizes will be modified by these, see indchanges |
nremovedblocks | number of empty blocks that should be removed |
nlpcons | number of active (at least two nonzeros) LP-constraints |
noldlpcons | number of LP-constraints including those with less than two active nonzeros |
lplhs | left-hand sides of active LP-rows after fixings (may be NULL if nlpcons = 0) |
lprhs | right-hand sides of active LP-rows after fixings (may be NULL if nlpcons = 0) |
rownactivevars | number of active variables for each LP-constraint |
lpnnonz | number of nonzero elements in the LP-constraint-matrix |
lprow | row-index for each entry in lpval-array, might get sorted (may be NULL if lpnnonz = 0) |
lpcol | column-index for each entry in lpval-array, might get sorted (may be NULL if lpnnonz = 0) |
lpval | values of LP-constraint-matrix entries, might get sorted (may be NULL if lpnnonz = 0) |
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 and MOSEK, set this to SCIP_SDPSOLVERSETTING_UNSOLVED to ignore it and start from scratch |
timelimit | after this many seconds solving will be aborted (currently only implemented for DSDP and MOSEK) |
feasorig | pointer to store if the solution to the penalty-formulation is feasible for the original problem (may be NULL if penaltyparam = 0) |
penaltybound | pointer to store if the primal solution reached the bound Tr(X) <= penaltyparam in the primal problem, this is also an indication of the penalty parameter being to small (may be NULL if not needed) |
Definition at line 665 of file sdpisolver_dsdp.c.
References BMS_CALL, checkGapSetPreoptimalSol(), checkTimeLimitDSDP(), compLowerTriangPos(), DSDP_CALL, DSDP_CALLM, INFEASFEASTOLCHANGE, INFEASMINFEASTOL, isFixed(), PENALTYBOUNDTOL, SCIP_SDPSOLVERSETTING_FAST, SCIP_SDPSOLVERSETTING_PENALTY, SCIPsdpiSolverGetSol(), SCIPsdpiSolverInfinity(), SCIPsdpiSolverIsAcceptable(), SCIPsdpiSolverIsDualFeasible(), SCIPsdpiSolverIsInfinity(), SCIPsdpiSolverWasSolved(), SCIPsdpSolcheckerCheck(), sortColRow(), and TIMEOFDAY_CALL.
Referenced by SCIPsdpiSolverLoadAndSolve().
SCIP_Bool SCIPsdpiSolverWasSolved | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns whether a solve method was called after the last modification of the SDP
sdpisolver | pointer to SDP-solver interface |
Definition at line 1742 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverFeasibilityKnown().
Referenced by SCIPsdpiSolverLoadAndSolveWithPenalty().
SCIP_Bool SCIPsdpiSolverFeasibilityKnown | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
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.
sdpisolver | pointer to SDP-solver interface |
Definition at line 1756 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverGetSolFeasibility().
Referenced by SCIPsdpiSolverWasSolved().
SCIP_RETCODE SCIPsdpiSolverGetSolFeasibility | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Bool * | primalfeasible, | ||
SCIP_Bool * | dualfeasible | ||
) |
gets information about primal and dual feasibility of the current SDP solution
sdpisolver | pointer to an SDP-solver interface |
primalfeasible | stores primal feasibility status |
dualfeasible | stores dual feasibility status |
Definition at line 1774 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED, DSDP_CALL, and SCIPsdpiSolverIsPrimalUnbounded().
Referenced by SCIPsdpiSolverFeasibilityKnown().
SCIP_Bool SCIPsdpiSolverIsPrimalUnbounded | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be primal unbounded, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1817 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsPrimalInfeasible().
Referenced by SCIPsdpiSolverGetSolFeasibility().
SCIP_Bool SCIPsdpiSolverIsPrimalInfeasible | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be primal infeasible, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1844 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsPrimalFeasible().
Referenced by SCIPsdpiSolverIsPrimalUnbounded().
SCIP_Bool SCIPsdpiSolverIsPrimalFeasible | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be primal feasible, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1870 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsDualUnbounded().
Referenced by SCIPsdpiSolverIsOptimal(), and SCIPsdpiSolverIsPrimalInfeasible().
SCIP_Bool SCIPsdpiSolverIsDualUnbounded | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be dual unbounded, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1894 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsDualInfeasible().
Referenced by SCIPsdpiSolverIsPrimalFeasible().
SCIP_Bool SCIPsdpiSolverIsDualInfeasible | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be dual infeasible, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1918 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsDualFeasible().
Referenced by SCIPsdpiSolverIsDualUnbounded().
SCIP_Bool SCIPsdpiSolverIsDualFeasible | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP is proven to be dual feasible, returns FALSE with a debug-message if the solver could not determine feasibility
sdpisolver | pointer to SDP-solver interface |
Definition at line 1943 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsConverged().
Referenced by SCIPsdpiSolverIsDualInfeasible(), SCIPsdpiSolverIsOptimal(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
SCIP_Bool SCIPsdpiSolverIsConverged | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff the solver converged
sdpisolver | pointer to SDP-solver interface |
Definition at line 1966 of file sdpisolver_dsdp.c.
References DSDP_CALL_BOOL, and SCIPsdpiSolverIsObjlimExc().
Referenced by SCIPsdpiSolverIsAcceptable(), SCIPsdpiSolverIsDualFeasible(), and SCIPsdpiSolverIsOptimal().
SCIP_Bool SCIPsdpiSolverIsObjlimExc | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff the objective limit was reached
sdpisolver | pointer to SDP-solver interface |
Definition at line 1989 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverIsIterlimExc().
Referenced by SCIPsdpiSolverIsConverged().
SCIP_Bool SCIPsdpiSolverIsIterlimExc | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff the iteration limit was reached
sdpisolver | pointer to SDP-solver interface |
Definition at line 2000 of file sdpisolver_dsdp.c.
References CHECK_IF_SOLVED_BOOL, DSDP_CALL_BOOL, and SCIPsdpiSolverIsTimelimExc().
Referenced by SCIPsdpiSolverIsObjlimExc().
SCIP_Bool SCIPsdpiSolverIsTimelimExc | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff the time limit was reached
sdpisolver | pointer to SDP-solver interface |
Definition at line 2018 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetInternalStatus().
Referenced by SCIPsdpiSolverIsIterlimExc().
int SCIPsdpiSolverGetInternalStatus | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
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
sdpisolver | pointer to SDP-solver interface |
Definition at line 2038 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverIsOptimal().
Referenced by SCIPsdpiSolverIsTimelimExc().
SCIP_Bool SCIPsdpiSolverIsOptimal | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP was solved to optimality, meaning the solver converged and returned primal and dual feasible solutions
sdpisolver | pointer to SDP-solver interface |
Definition at line 2093 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverIsAcceptable(), SCIPsdpiSolverIsConverged(), SCIPsdpiSolverIsDualFeasible(), and SCIPsdpiSolverIsPrimalFeasible().
Referenced by SCIPsdpiSolverGetInternalStatus().
SCIP_Bool SCIPsdpiSolverIsAcceptable | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns TRUE iff SDP was solved to optimality or some other status was reached that is still acceptable inside a Branch & Bound framework
sdpisolver | pointer to SDP-solver interface |
Definition at line 2105 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverIgnoreInstability(), and SCIPsdpiSolverIsConverged().
Referenced by SCIPsdpiSolverIsOptimal(), SCIPsdpiSolverLoadAndSolveWithPenalty(), and SCIPsdpiSolverSettingsUsed().
SCIP_RETCODE SCIPsdpiSolverIgnoreInstability | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Bool * | success | ||
) |
tries to reset the internal status of the SDP-solver in order to ignore an instability of the last solving call
sdpisolver | pointer to an SDP-solver interface |
success | pointer to store, whether the instability could be ignored |
Definition at line 2115 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetObjval().
Referenced by SCIPsdpiSolverIsAcceptable().
SCIP_RETCODE SCIPsdpiSolverGetObjval | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real * | objval | ||
) |
gets objective value of solution
sdpisolver | pointer to an SDP-solver interface |
objval | pointer to store the objective value |
Definition at line 2125 of file sdpisolver_dsdp.c.
References BMS_CALL, CHECK_IF_SOLVED, DSDP_CALL, and SCIPsdpiSolverGetSol().
Referenced by SCIPsdpiSolverGetSol(), and SCIPsdpiSolverIgnoreInstability().
SCIP_RETCODE SCIPsdpiSolverGetSol | ( | SCIP_SDPISOLVER * | sdpisolver, |
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 is thrown.
sdpisolver | pointer to an SDP-solver interface |
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 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 |
Definition at line 2176 of file sdpisolver_dsdp.c.
References BMS_CALL, CHECK_IF_SOLVED, DSDP_CALL, SCIPsdpiSolverGetObjval(), and SCIPsdpiSolverGetPreoptimalPrimalNonzeros().
Referenced by SCIPsdpiSolverGetObjval(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
SCIP_RETCODE SCIPsdpiSolverGetPreoptimalPrimalNonzeros | ( | SCIP_SDPISOLVER * | sdpisolver, |
int | nblocks, | ||
int * | startXnblocknonz | ||
) |
return number of nonzeros for each block of the primal solution matrix X for the preoptimal solution
sdpisolver | pointer to an SDP-solver interface |
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 2255 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetPreoptimalSol().
Referenced by SCIPsdpiSolverGetSol().
SCIP_RETCODE SCIPsdpiSolverGetPreoptimalSol | ( | SCIP_SDPISOLVER * | sdpisolver, |
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
sdpisolver | pointer to an SDP-solver interface |
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 2274 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetPrimalBoundVars().
Referenced by SCIPsdpiSolverGetPreoptimalPrimalNonzeros().
SCIP_RETCODE SCIPsdpiSolverGetPrimalBoundVars | ( | SCIP_SDPISOLVER * | sdpisolver, |
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.
sdpisolver | pointer to an SDP-solver interface |
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 wasn't sufficient) |
Definition at line 2342 of file sdpisolver_dsdp.c.
References BMS_CALL, CHECK_IF_SOLVED, DSDP_CALL, and SCIPsdpiSolverGetPrimalNonzeros().
Referenced by SCIPsdpiSolverGetPreoptimalSol().
SCIP_RETCODE SCIPsdpiSolverGetPrimalNonzeros | ( | SCIP_SDPISOLVER * | sdpisolver, |
int | nblocks, | ||
int * | startXnblocknonz | ||
) |
return number of nonzeros for each block of the primal solution matrix X (including lp block)
sdpisolver | pointer to an SDP-solver interface |
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 2401 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetPrimalMatrix().
Referenced by SCIPsdpiSolverGetPrimalBoundVars().
SCIP_RETCODE SCIPsdpiSolverGetPrimalMatrix | ( | SCIP_SDPISOLVER * | sdpisolver, |
int | nblocks, | ||
int * | startXnblocknonz, | ||
int ** | startXrow, | ||
int ** | startXcol, | ||
SCIP_Real ** | startXval | ||
) |
returns the primal matrix X
sdpisolver | pointer to an SDP-solver interface |
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 2417 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetMaxPrimalEntry().
Referenced by SCIPsdpiSolverGetPrimalNonzeros().
SCIP_Real SCIPsdpiSolverGetMaxPrimalEntry | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
return the maximum absolute value of the optimal primal matrix
sdpisolver | pointer to an SDP-solver interface |
Definition at line 2432 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetIterations().
Referenced by SCIPsdpiSolverGetPrimalMatrix().
SCIP_RETCODE SCIPsdpiSolverGetIterations | ( | SCIP_SDPISOLVER * | sdpisolver, |
int * | iterations | ||
) |
gets the number of SDP iterations of the last solve call
sdpisolver | pointer to an SDP-solver interface |
iterations | pointer to store the number of iterations of the last solve call |
Definition at line 2441 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetSdpCalls().
Referenced by SCIPsdpiSolverGetMaxPrimalEntry().
SCIP_RETCODE SCIPsdpiSolverGetSdpCalls | ( | SCIP_SDPISOLVER * | sdpisolver, |
int * | calls | ||
) |
gets the number of calls to the SDP-solver for the last solve call
sdpisolver | pointer to an SDP-solver interface |
calls | pointer to store the number of calls to the SDP-solver for the last solve call |
Definition at line 2458 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverSettingsUsed().
Referenced by SCIPsdpiSolverGetIterations().
SCIP_RETCODE SCIPsdpiSolverSettingsUsed | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_SDPSOLVERSETTING * | usedsetting | ||
) |
gets the settings used by the SDP solver for the last solve call
sdpisolver | SDP-solver interface |
usedsetting | the setting used by the SDP-solver |
Definition at line 2475 of file sdpisolver_dsdp.c.
References SCIP_SDPSOLVERSETTING_UNSOLVED, SCIPsdpiSolverInfinity(), and SCIPsdpiSolverIsAcceptable().
Referenced by SCIPsdpiSolverGetSdpCalls().
SCIP_Real SCIPsdpiSolverInfinity | ( | SCIP_SDPISOLVER * | sdpisolver | ) |
returns value treated as infinity in the SDP-solver
sdpisolver | pointer to an SDP-solver interface |
Definition at line 2504 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverIsInfinity().
Referenced by SCIPsdpiSolverCreate(), SCIPsdpiSolverIsInfinity(), SCIPsdpiSolverLoadAndSolveWithPenalty(), and SCIPsdpiSolverSettingsUsed().
SCIP_Bool SCIPsdpiSolverIsInfinity | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real | val | ||
) |
checks if given value is treated as (plus or minus) infinity in the SDP-solver
sdpisolver | pointer to an SDP-solver interface |
val | value to be checked for infinity |
Definition at line 2512 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverGetRealpar(), and SCIPsdpiSolverInfinity().
Referenced by SCIPsdpiSolverInfinity(), and SCIPsdpiSolverLoadAndSolveWithPenalty().
SCIP_RETCODE SCIPsdpiSolverGetRealpar | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_SDPPARAM | type, | ||
SCIP_Real * | dval | ||
) |
gets floating point parameter of SDP-Solver
sdpisolver | pointer to an SDP-solver interface |
type | parameter number |
dval | buffer to store the parameter value |
Definition at line 2521 of file sdpisolver_dsdp.c.
References SCIP_SDPPAR_EPSILON, SCIP_SDPPAR_FEASTOL, SCIP_SDPPAR_GAPTOL, SCIP_SDPPAR_OBJLIMIT, SCIP_SDPPAR_PENALTYPARAM, SCIP_SDPPAR_SDPSOLVERFEASTOL, SCIP_SDPPAR_WARMSTARTPOGAP, and SCIPsdpiSolverSetRealpar().
Referenced by SCIPsdpiSolverIsInfinity().
SCIP_RETCODE SCIPsdpiSolverSetRealpar | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_SDPPARAM | type, | ||
SCIP_Real | dval | ||
) |
sets floating point parameter of SDP-Solver
sdpisolver | pointer to an SDP-solver interface |
type | parameter number |
dval | parameter value |
Definition at line 2561 of file sdpisolver_dsdp.c.
References SCIP_SDPPAR_EPSILON, SCIP_SDPPAR_FEASTOL, SCIP_SDPPAR_GAPTOL, SCIP_SDPPAR_LAMBDASTAR, SCIP_SDPPAR_OBJLIMIT, SCIP_SDPPAR_PENALTYPARAM, SCIP_SDPPAR_SDPSOLVERFEASTOL, SCIP_SDPPAR_WARMSTARTPOGAP, and SCIPsdpiSolverGetIntpar().
Referenced by SCIPsdpiSolverGetRealpar().
SCIP_RETCODE SCIPsdpiSolverGetIntpar | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_SDPPARAM | type, | ||
int * | ival | ||
) |
gets integer parameter of SDP-Solver
sdpisolver | pointer to an SDP-solver interface |
type | parameter number |
ival | parameter value |
Definition at line 2610 of file sdpisolver_dsdp.c.
References SCIP_SDPPAR_SDPINFO, and SCIPsdpiSolverSetIntpar().
Referenced by SCIPsdpiSolverSetRealpar().
SCIP_RETCODE SCIPsdpiSolverSetIntpar | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_SDPPARAM | type, | ||
int | ival | ||
) |
sets integer parameter of SDP-Solver
sdpisolver | pointer to an SDP-solver interface |
type | parameter number |
ival | parameter value |
Definition at line 2632 of file sdpisolver_dsdp.c.
References SCIP_SDPPAR_SDPINFO, and SCIPsdpiSolverComputeLambdastar().
Referenced by SCIPsdpiSolverGetIntpar().
SCIP_RETCODE SCIPsdpiSolverComputeLambdastar | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real | maxguess | ||
) |
compute and set lambdastar (only used for SDPA)
sdpisolver | pointer to an SDP-solver interface |
maxguess | maximum guess for lambda star of all SDP-constraints |
Definition at line 2654 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverComputePenaltyparam().
Referenced by SCIPsdpiSolverSetIntpar().
SCIP_RETCODE SCIPsdpiSolverComputePenaltyparam | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real | maxcoeff, | ||
SCIP_Real * | penaltyparam | ||
) |
compute and set the penalty parameter
sdpisolver | pointer to an SDP-solver interface |
maxcoeff | maximum objective coefficient |
penaltyparam | the computed penalty parameter |
Definition at line 2665 of file sdpisolver_dsdp.c.
References MAX_PENALTYPARAM, MIN_PENALTYPARAM, PENALTYPARAM_FACTOR, and SCIPsdpiSolverComputeMaxPenaltyparam().
Referenced by SCIPsdpiSolverComputeLambdastar().
SCIP_RETCODE SCIPsdpiSolverComputeMaxPenaltyparam | ( | SCIP_SDPISOLVER * | sdpisolver, |
SCIP_Real | penaltyparam, | ||
SCIP_Real * | maxpenaltyparam | ||
) |
compute and set the maximum penalty parameter
sdpisolver | pointer to an SDP-solver interface |
penaltyparam | the initial penalty parameter |
maxpenaltyparam | the computed maximum penalty parameter |
Definition at line 2700 of file sdpisolver_dsdp.c.
References MAX_MAXPENALTYPARAM, MAXPENALTYPARAM_FACTOR, and SCIPsdpiSolverReadSDP().
Referenced by SCIPsdpiSolverComputePenaltyparam().
SCIP_RETCODE SCIPsdpiSolverReadSDP | ( | SCIP_SDPISOLVER * | sdpisolver, |
const char * | fname | ||
) |
reads SDP from a file
sdpisolver | pointer to an SDP-solver interface |
fname | file name |
Definition at line 2746 of file sdpisolver_dsdp.c.
References SCIPsdpiSolverWriteSDP().
Referenced by SCIPsdpiSolverComputeMaxPenaltyparam().
SCIP_RETCODE SCIPsdpiSolverWriteSDP | ( | SCIP_SDPISOLVER * | sdpisolver, |
const char * | fname | ||
) |
writes SDP to a file
sdpisolver | pointer to an SDP-solver interface |
fname | file name |
Definition at line 2756 of file sdpisolver_dsdp.c.
Referenced by SCIPsdpiSolverReadSDP().