SCIP
Solving Constraint Integer Programs
Solving Constraint Integer Programs
LP interface for MOSEK.
Definition in file lpi_msk.c.
#include <assert.h>#include "mosek.h"#include "lpi/lpi.h"#include "scip/bitencode.h"#include <string.h>Go to the source code of this file.
Typedefs | |
| typedef SCIP_DUALPACKET | COLPACKET |
| typedef SCIP_DUALPACKET | ROWPACKET |
Variables | |
| static MSKenv_t | MosekEnv = NULL |
| static int | numlp = 0 |
| static int | optimizecount = 0 |
| static int | nextlpid = 1 |
| static int | numstrongbranchmaxiterup = 0 |
| static int | numstrongbranchmaxiterdo = 0 |
| static int | numprimalmaxiter = 0 |
| static int | numdualmaxiter = 0 |
| static int | numstrongbranchobjup = 0 |
| static int | numstrongbranchobjdo = 0 |
| static int | numprimalobj = 0 |
| static int | numdualobj = 0 |
| static char | mskname [100] |
| static const char * | paramname [] |
| #define scipmskobjsen MSKobjsensee |
Definition at line 36 of file lpi_msk.c.
Referenced by SolveWSimplex().
| #define SENSE2MOSEK | ( | objsen | ) | (((objsen)==SCIP_OBJSEN_MINIMIZE)?(MSK_OBJECTIVE_SENSE_MINIMIZE):(MSK_OBJECTIVE_SENSE_MAXIMIZE)) |
Definition at line 37 of file lpi_msk.c.
Referenced by SCIPlpiChgObjsen(), SCIPlpiCreate(), and SCIPlpiLoadColLP().
| #define MOSEK_CALL | ( | x | ) |
Definition at line 39 of file lpi_msk.c.
Referenced by checkState1(), convertstat_mosek2scip(), convertstat_mosek2scip_slack(), getASlice(), getbase(), getSolutionStatus(), handle_singular(), printstr(), SCIPlpiAddCols(), SCIPlpiAddRows(), SCIPlpiChgBounds(), SCIPlpiChgCoef(), SCIPlpiChgObj(), SCIPlpiChgObjsen(), SCIPlpiChgSides(), SCIPlpiClear(), SCIPlpiCreate(), SCIPlpiDelCols(), SCIPlpiDelColset(), SCIPlpiDelRows(), SCIPlpiDelRowset(), SCIPlpiFree(), SCIPlpiGetBase(), SCIPlpiGetBasisInd(), SCIPlpiGetBInvACol(), SCIPlpiGetBInvARow(), SCIPlpiGetBInvCol(), SCIPlpiGetBInvRow(), SCIPlpiGetBounds(), SCIPlpiGetCoef(), SCIPlpiGetDualfarkas(), SCIPlpiGetIntpar(), SCIPlpiGetNCols(), SCIPlpiGetNNonz(), SCIPlpiGetNRows(), SCIPlpiGetObj(), SCIPlpiGetObjval(), SCIPlpiGetPrimalRay(), SCIPlpiGetRealpar(), SCIPlpiGetSides(), SCIPlpiGetSol(), SCIPlpiGetSolFeasibility(), SCIPlpiGetState(), SCIPlpiLoadColLP(), SCIPlpiReadLP(), SCIPlpiReadState(), SCIPlpiScaleCol(), SCIPlpiScaleRow(), SCIPlpiSetBase(), SCIPlpiSetIntpar(), SCIPlpiSetRealpar(), SCIPlpiSetState(), SCIPlpiSolveBarrier(), SCIPlpiSolveDual(), SCIPlpiSolvePrimal(), SCIPlpiStrongbranch(), SCIPlpiWriteLP(), SCIPlpiWriteState(), setbase(), and SolveWSimplex().
| #define SCIP_ABORT_FALSE | ( | x | ) |
Definition at line 52 of file lpi_msk.c.
Referenced by SCIPlpiExistsDualRay(), SCIPlpiExistsPrimalRay(), SCIPlpiHasDualRay(), SCIPlpiHasPrimalRay(), SCIPlpiIsDualFeasible(), SCIPlpiIsOptimal(), and SCIPlpiIsPrimalFeasible().
| #define IS_POSINF | ( | x | ) | ((x) >= SCIP_DEFAULT_INFINITY) |
Definition at line 64 of file lpi_msk.c.
Referenced by generateMskBounds(), SCIPlpiIsInfinity(), and SCIPlpiStrongbranch().
| #define IS_NEGINF | ( | x | ) | ((x) <= -SCIP_DEFAULT_INFINITY) |
Definition at line 65 of file lpi_msk.c.
Referenced by generateMskBounds(), and SCIPlpiStrongbranch().
| #define DEBUG_CHECK_STATE_TOL 1e-5 |
Definition at line 86 of file lpi_msk.c.
Referenced by checkState1().
| #define ASSERT_ON_NUMERICAL_TROUBLES 0 |
Definition at line 88 of file lpi_msk.c.
Referenced by filterTRMrescode().
| #define FORCE_NO_MAXITER 0 |
Definition at line 92 of file lpi_msk.c.
Referenced by SolveWSimplex().
| #define SETBACK_LIMIT 250 |
Definition at line 94 of file lpi_msk.c.
Referenced by SCIPlpiCreate().
| #define STRONGBRANCH_PRICING MSK_SIM_SELECTION_SE |
Definition at line 97 of file lpi_msk.c.
Referenced by SCIPlpiStrongbranch().
| #define WRITE_ABOVE 0 |
Definition at line 102 of file lpi_msk.c.
Referenced by SCIPlpiSolveBarrier(), SCIPlpiSolveDual(), SCIPlpiSolvePrimal(), and SolveWSimplex().
| #define DEGEN_LEVEL MSK_SIM_DEGEN_FREE |
Definition at line 103 of file lpi_msk.c.
Referenced by SCIPlpiCreate().
| #define COLS_PER_PACKET SCIP_DUALPACKETSIZE |
Definition at line 150 of file lpi_msk.c.
Referenced by colpacketNum().
| #define ROWS_PER_PACKET SCIP_DUALPACKETSIZE |
Definition at line 152 of file lpi_msk.c.
Referenced by rowpacketNum().
| typedef SCIP_DUALPACKET COLPACKET |
| typedef SCIP_DUALPACKET ROWPACKET |
|
static |
returns the number of packets needed to store column packet information
| ncols | number of columns to store |
Definition at line 166 of file lpi_msk.c.
References COLS_PER_PACKET.
Referenced by lpistateCreate(), and lpistateFree().
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returns the number of packets needed to store row packet information
| nrows | number of rows to store |
Definition at line 175 of file lpi_msk.c.
References ROWS_PER_PACKET.
Referenced by lpistateCreate(), and lpistateFree().
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create error string
| handle | error handle |
| str | string that contains string on output |
Definition at line 184 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, MOSEK_CALL, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPdebugMessage, SCIPerrorMessage, and SCIP_LPi::task.
Referenced by SCIPlpiCreate().
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static |
Definition at line 320 of file lpi_msk.c.
References IS_NEGINF, IS_POSINF, and NULL.
Referenced by SCIPlpiAddCols(), SCIPlpiAddRows(), SCIPlpiChgBounds(), SCIPlpiChgSides(), and SCIPlpiLoadColLP().
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get end pointers of arrays
| n | array size |
| beg | array of beginning indices |
| nnonz | number of nonzeros |
| aptre | pointer to store the result |
Definition at line 380 of file lpi_msk.c.
References BMSallocMemoryArray, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by SCIPlpiAddCols(), SCIPlpiAddRows(), and SCIPlpiLoadColLP().
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static |
compute indices from range
| first | first index |
| last | last index |
| sub | pointer to store the indices ranges |
Definition at line 420 of file lpi_msk.c.
References BMSallocMemoryArray, SCIP_ALLOC, and SCIP_OKAY.
Referenced by SCIPlpiDelCols(), and SCIPlpiDelRows().
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compute indices from dense array
| dstat | array |
| n | size of array |
| count | array of counts (sizes) |
| sub | pointer to store array of indices |
Definition at line 442 of file lpi_msk.c.
References BMSallocMemoryArray, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by SCIPlpiDelColset(), and SCIPlpiDelRowset().
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static |
Definition at line 483 of file lpi_msk.c.
Referenced by SCIPlpiScaleCol(), and SCIPlpiScaleRow().
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static |
Definition at line 497 of file lpi_msk.c.
References FALSE.
Referenced by SCIPlpiScaleCol(), and SCIPlpiScaleRow().
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Definition at line 536 of file lpi_msk.c.
References BMSreallocMemoryArray, MAX, SCIP_ALLOC, SCIP_OKAY, SCIP_LPi::skc, SCIP_LPi::skcsize, SCIP_LPi::skx, and SCIP_LPi::skxsize.
Referenced by getbase(), SCIPlpiSetBase(), and SCIPlpiSetState().
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static |
Definition at line 564 of file lpi_msk.c.
References ensureStateMem(), SCIP_LPi::lpid, MOSEK_CALL, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIP_LPi::skc, SCIP_LPi::skx, and SCIP_LPi::task.
Referenced by SCIPlpiGetBase(), SCIPlpiGetState(), SCIPlpiSetState(), and SCIPlpiStrongbranch().
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static |
| lpi | pointer to an LP interface structure |
Definition at line 580 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, NULL, SCIP_OKAY, SCIPdebugMessage, SCIP_LPi::skc, SCIP_LPi::skx, and SCIP_LPi::task.
Referenced by SCIPlpiSetBase(), SCIPlpiSetState(), and SCIPlpiStrongbranch().
| const char* SCIPlpiGetSolverName | ( | void | ) |
| const char* SCIPlpiGetSolverDesc | ( | void | ) |
| void* SCIPlpiGetSolverPointer | ( | SCIP_LPI * | lpi | ) |
gets pointer for LP solver - use only with great care
| lpi | pointer to an LP interface structure |
Definition at line 621 of file lpi_msk.c.
References SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiSetIntegralityInformation | ( | SCIP_LPI * | lpi, |
| int | ncols, | ||
| int * | intInfo | ||
| ) |
pass integrality information to LP solver
| lpi | pointer to an LP interface structure |
| ncols | length of integrality array |
| intInfo | integrality array (0: continuous, 1: integer) |
Definition at line 629 of file lpi_msk.c.
References SCIP_LPERROR, and SCIPerrorMessage.
| SCIP_RETCODE SCIPlpiCreate | ( | SCIP_LPI ** | lpi, |
| SCIP_MESSAGEHDLR * | messagehdlr, | ||
| const char * | name, | ||
| SCIP_OBJSEN | objsen | ||
| ) |
creates an LP problem object
| lpi | pointer to an LP interface structure |
| messagehdlr | message handler to use for printing messages, or NULL |
| name | problem name |
| objsen | objective sense |
Definition at line 649 of file lpi_msk.c.
References BMSallocMemory, DEGEN_LEVEL, SCIP_LPi::messagehdlr, MOSEK_CALL, MosekEnv, nextlpid, NULL, numlp, printstr(), SCIP_ALLOC, SCIP_OKAY, SCIP_PRICING_LPIDEFAULT, SCIPdebugMessage, SENSE2MOSEK, and SETBACK_LIMIT.
| SCIP_RETCODE SCIPlpiFree | ( | SCIP_LPI ** | lpi | ) |
deletes an LP problem object
| lpi | pointer to an LP interface structure |
Definition at line 705 of file lpi_msk.c.
References BMSfreeMemory, BMSfreeMemoryArrayNull, MOSEK_CALL, MosekEnv, NULL, numlp, SCIP_OKAY, and SCIPdebugMessage.
| SCIP_RETCODE SCIPlpiLoadColLP | ( | SCIP_LPI * | lpi, |
| SCIP_OBJSEN | objsen, | ||
| int | ncols, | ||
| const SCIP_Real * | obj, | ||
| const SCIP_Real * | lb, | ||
| const SCIP_Real * | ub, | ||
| char ** | colnames, | ||
| int | nrows, | ||
| const SCIP_Real * | lhs, | ||
| const SCIP_Real * | rhs, | ||
| char ** | rownames, | ||
| int | nnonz, | ||
| const int * | beg, | ||
| const int * | ind, | ||
| const SCIP_Real * | val | ||
| ) |
copies LP data with column matrix into LP solver
| lpi | LP interface structure |
| objsen | objective sense |
| ncols | number of columns |
| obj | objective function values of columns |
| lb | lower bounds of columns |
| ub | upper bounds of columns |
| colnames | column names, or NULL |
| nrows | number of rows |
| lhs | left hand sides of rows |
| rhs | right hand sides of rows |
| rownames | row names, or NULL |
| nnonz | number of nonzero elements in the constraint matrix |
| beg | start index of each column in ind- and val-array |
| ind | row indices of constraint matrix entries |
| val | values of constraint matrix entries |
Definition at line 737 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, generateMskBounds(), getEndptrs(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SENSE2MOSEK, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiAddCols | ( | SCIP_LPI * | lpi, |
| int | ncols, | ||
| const SCIP_Real * | obj, | ||
| const SCIP_Real * | lb, | ||
| const SCIP_Real * | ub, | ||
| char ** | colnames, | ||
| int | nnonz, | ||
| const int * | beg, | ||
| const int * | ind, | ||
| const SCIP_Real * | val | ||
| ) |
adds columns to the LP
| lpi | LP interface structure |
| ncols | number of columns to be added |
| obj | objective function values of new columns |
| lb | lower bounds of new columns |
| ub | upper bounds of new columns |
| colnames | column names, or NULL |
| nnonz | number of nonzero elements to be added to the constraint matrix |
| beg | start index of each column in ind- and val-array, or NULL if nnonz == 0 |
| ind | row indices of constraint matrix entries, or NULL if nnonz == 0 |
| val | values of constraint matrix entries, or NULL if nnonz == 0 |
Definition at line 831 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, generateMskBounds(), getEndptrs(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiDelCols | ( | SCIP_LPI * | lpi, |
| int | firstcol, | ||
| int | lastcol | ||
| ) |
deletes all columns in the given range from LP
| lpi | LP interface structure |
| firstcol | first column to be deleted |
| lastcol | last column to be deleted |
Definition at line 928 of file lpi_msk.c.
References BMSfreeMemoryArray, getIndicesRange(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiClear().
| SCIP_RETCODE SCIPlpiDelColset | ( | SCIP_LPI * | lpi, |
| int * | dstat | ||
| ) |
deletes columns from SCIP_LP; the new position of a column must not be greater that its old position
| lpi | LP interface structure |
| dstat | deletion status of columns input: 1 if column should be deleted, 0 if not output: new position of column, -1 if column was deleted |
Definition at line 965 of file lpi_msk.c.
References BMSfreeMemoryArray, getIndicesFromDense(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiAddRows | ( | SCIP_LPI * | lpi, |
| int | nrows, | ||
| const SCIP_Real * | lhs, | ||
| const SCIP_Real * | rhs, | ||
| char ** | rownames, | ||
| int | nnonz, | ||
| const int * | beg, | ||
| const int * | ind, | ||
| const SCIP_Real * | val | ||
| ) |
adds rows to the LP
| lpi | LP interface structure |
| nrows | number of rows to be added |
| lhs | left hand sides of new rows |
| rhs | right hand sides of new rows |
| rownames | row names, or NULL |
| nnonz | number of nonzero elements to be added to the constraint matrix |
| beg | start index of each row in ind- and val-array, or NULL if nnonz == 0 |
| ind | column indices of constraint matrix entries, or NULL if nnonz == 0 |
| val | values of constraint matrix entries, or NULL if nnonz == 0 |
Definition at line 1026 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, generateMskBounds(), getEndptrs(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiDelRows | ( | SCIP_LPI * | lpi, |
| int | firstrow, | ||
| int | lastrow | ||
| ) |
deletes all rows in the given range from LP
| lpi | LP interface structure |
| firstrow | first row to be deleted |
| lastrow | last row to be deleted |
Definition at line 1114 of file lpi_msk.c.
References BMSfreeMemoryArray, getIndicesRange(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiClear().
| SCIP_RETCODE SCIPlpiDelRowset | ( | SCIP_LPI * | lpi, |
| int * | dstat | ||
| ) |
deletes rows from SCIP_LP; the new position of a row must not be greater that its old position
| lpi | LP interface structure |
| dstat | deletion status of rows input: 1 if row should be deleted, 0 if not output: new position of row, -1 if row was deleted |
Definition at line 1152 of file lpi_msk.c.
References BMSfreeMemoryArray, getIndicesFromDense(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiClear | ( | SCIP_LPI * | lpi | ) |
clears the whole LP
| lpi | LP interface structure |
Definition at line 1213 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPlpiDelCols(), SCIPlpiDelRows(), and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiChgBounds | ( | SCIP_LPI * | lpi, |
| int | ncols, | ||
| const int * | ind, | ||
| const SCIP_Real * | lb, | ||
| const SCIP_Real * | ub | ||
| ) |
changes lower and upper bounds of columns
| lpi | LP interface structure |
| ncols | number of columns to change bounds for |
| ind | column indices |
| lb | values for the new lower bounds |
| ub | values for the new upper bounds |
Definition at line 1236 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, generateMskBounds(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_LPERROR, SCIP_OKAY, SCIPdebugMessage, SCIPerrorMessage, SCIPlpiIsInfinity(), and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiChgSides | ( | SCIP_LPI * | lpi, |
| int | nrows, | ||
| const int * | ind, | ||
| const SCIP_Real * | lhs, | ||
| const SCIP_Real * | rhs | ||
| ) |
changes left and right hand sides of rows
| lpi | LP interface structure |
| nrows | number of rows to change sides for |
| ind | row indices |
| lhs | new values for left hand sides |
| rhs | new values for right hand sides |
Definition at line 1298 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, generateMskBounds(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiChgCoef | ( | SCIP_LPI * | lpi, |
| int | row, | ||
| int | col, | ||
| SCIP_Real | newval | ||
| ) |
changes a single coefficient
| lpi | LP interface structure |
| row | row number of coefficient to change |
| col | column number of coefficient to change |
| newval | new value of coefficient |
Definition at line 1342 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiChgObjsen | ( | SCIP_LPI * | lpi, |
| SCIP_OBJSEN | objsen | ||
| ) |
changes the objective sense
| lpi | LP interface structure |
| objsen | new objective sense |
Definition at line 1369 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, SENSE2MOSEK, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiChgObj | ( | SCIP_LPI * | lpi, |
| int | ncols, | ||
| const int * | ind, | ||
| const SCIP_Real * | obj | ||
| ) |
changes objective values of columns in the LP
| lpi | LP interface structure |
| ncols | number of columns to change objective value for |
| ind | column indices to change objective value for |
| obj | new objective values for columns |
Definition at line 1386 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiScaleRow | ( | SCIP_LPI * | lpi, |
| int | row, | ||
| SCIP_Real | scaleval | ||
| ) |
multiplies a row with a non-zero scalar; for negative scalars, the row's sense is switched accordingly
| lpi | LP interface structure |
| row | row number to scale |
| scaleval | scaling multiplier |
Definition at line 1413 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, scale_bound(), scale_vec(), SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiScaleCol | ( | SCIP_LPI * | lpi, |
| int | col, | ||
| SCIP_Real | scaleval | ||
| ) |
multiplies a column with a non-zero scalar; the objective value is multiplied with the scalar, and the bounds are divided by the scalar; for negative scalars, the column's bounds are switched
| lpi | LP interface structure |
| col | column number to scale |
| scaleval | scaling multiplier |
Definition at line 1477 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, scale_bound(), scale_vec(), SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetNRows | ( | SCIP_LPI * | lpi, |
| int * | nrows | ||
| ) |
gets the number of rows in the LP
| lpi | LP interface structure |
| nrows | pointer to store the number of rows |
Definition at line 1546 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetNCols | ( | SCIP_LPI * | lpi, |
| int * | ncols | ||
| ) |
gets the number of columns in the LP
| lpi | LP interface structure |
| ncols | pointer to store the number of cols |
Definition at line 1563 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetNNonz | ( | SCIP_LPI * | lpi, |
| int * | nnonz | ||
| ) |
gets the number of nonzero elements in the LP constraint matrix
| lpi | LP interface structure |
| nnonz | pointer to store the number of nonzeros |
Definition at line 1580 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
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static |
Definition at line 1597 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiGetCols(), and SCIPlpiGetRows().
| SCIP_RETCODE SCIPlpiGetCols | ( | SCIP_LPI * | lpi, |
| int | firstcol, | ||
| int | lastcol, | ||
| SCIP_Real * | lb, | ||
| SCIP_Real * | ub, | ||
| int * | nnonz, | ||
| int * | beg, | ||
| int * | ind, | ||
| SCIP_Real * | val | ||
| ) |
gets columns from LP problem object; the arrays have to be large enough to store all values; Either both, lb and ub, have to be NULL, or both have to be non-NULL, either nnonz, beg, ind, and val have to be NULL, or all of them have to be non-NULL.
| lpi | LP interface structure |
| firstcol | first column to get from LP |
| lastcol | last column to get from LP |
| lb | buffer to store the lower bound vector, or NULL |
| ub | buffer to store the upper bound vector, or NULL |
| nnonz | pointer to store the number of nonzero elements returned, or NULL |
| beg | buffer to store start index of each column in ind- and val-array, or NULL |
| ind | buffer to store column indices of constraint matrix entries, or NULL |
| val | buffer to store values of constraint matrix entries, or NULL |
Definition at line 1651 of file lpi_msk.c.
References getASlice(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPlpiGetBounds(), and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetRows | ( | SCIP_LPI * | lpi, |
| int | firstrow, | ||
| int | lastrow, | ||
| SCIP_Real * | lhs, | ||
| SCIP_Real * | rhs, | ||
| int * | nnonz, | ||
| int * | beg, | ||
| int * | ind, | ||
| SCIP_Real * | val | ||
| ) |
gets rows from LP problem object; the arrays have to be large enough to store all values. Either both, lhs and rhs, have to be NULL, or both have to be non-NULL, either nnonz, beg, ind, and val have to be NULL, or all of them have to be non-NULL.
| lpi | LP interface structure |
| firstrow | first row to get from LP |
| lastrow | last row to get from LP |
| lhs | buffer to store left hand side vector, or NULL |
| rhs | buffer to store right hand side vector, or NULL |
| nnonz | pointer to store the number of nonzero elements returned, or NULL |
| beg | buffer to store start index of each row in ind- and val-array, or NULL |
| ind | buffer to store row indices of constraint matrix entries, or NULL |
| val | buffer to store values of constraint matrix entries, or NULL |
Definition at line 1679 of file lpi_msk.c.
References getASlice(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPlpiGetSides(), and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetColNames | ( | SCIP_LPI * | lpi, |
| int | firstcol, | ||
| int | lastcol, | ||
| char ** | colnames, | ||
| char * | namestorage, | ||
| int | namestoragesize, | ||
| int * | storageleft | ||
| ) |
gets column names
| lpi | LP interface structure |
| firstcol | first column to get name from LP |
| lastcol | last column to get name from LP |
| colnames | pointers to column names (of size at least lastcol-firstcol+1) |
| namestorage | storage for col names |
| namestoragesize | size of namestorage (if 0, storageleft returns the storage needed) |
| storageleft | amount of storage left (if < 0 the namestorage was not big enough) |
Definition at line 1713 of file lpi_msk.c.
References SCIP_LPERROR, and SCIPerrorMessage.
| SCIP_RETCODE SCIPlpiGetRowNames | ( | SCIP_LPI * | lpi, |
| int | firstrow, | ||
| int | lastrow, | ||
| char ** | rownames, | ||
| char * | namestorage, | ||
| int | namestoragesize, | ||
| int * | storageleft | ||
| ) |
gets row names
| lpi | LP interface structure |
| firstrow | first row to get name from LP |
| lastrow | last row to get name from LP |
| rownames | pointers to row names (of size at least lastrow-firstrow+1) |
| namestorage | storage for row names |
| namestoragesize | size of namestorage (if 0, -storageleft returns the storage needed) |
| storageleft | amount of storage left (if < 0 the namestorage was not big enough) |
Definition at line 1728 of file lpi_msk.c.
References SCIP_LPERROR, and SCIPerrorMessage.
| SCIP_RETCODE SCIPlpiGetObjsen | ( | SCIP_LPI * | lpi, |
| SCIP_OBJSEN * | objsen | ||
| ) |
gets the objective sense of the LP
| lpi | LP interface structure |
| objsen | pointer to store objective sense |
Definition at line 1743 of file lpi_msk.c.
References SCIP_LPERROR, and SCIPerrorMessage.
| SCIP_RETCODE SCIPlpiGetObj | ( | SCIP_LPI * | lpi, |
| int | firstcol, | ||
| int | lastcol, | ||
| SCIP_Real * | vals | ||
| ) |
gets objective coefficients from LP problem object
| lpi | LP interface structure |
| firstcol | first column to get objective coefficient for |
| lastcol | last column to get objective coefficient for |
| vals | array to store objective coefficients |
Definition at line 1753 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetBounds | ( | SCIP_LPI * | lpi, |
| int | firstcol, | ||
| int | lastcol, | ||
| SCIP_Real * | lbs, | ||
| SCIP_Real * | ubs | ||
| ) |
gets current bounds from LP problem object
| lpi | LP interface structure |
| firstcol | first column to get bounds for |
| lastcol | last column to get bounds for |
| lbs | array to store lower bound values, or NULL |
| ubs | array to store upper bound values, or NULL |
Definition at line 1772 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiGetCols().
| SCIP_RETCODE SCIPlpiGetSides | ( | SCIP_LPI * | lpi, |
| int | firstrow, | ||
| int | lastrow, | ||
| SCIP_Real * | lhss, | ||
| SCIP_Real * | rhss | ||
| ) |
gets current row sides from LP problem object
| lpi | LP interface structure |
| firstrow | first row to get sides for |
| lastrow | last row to get sides for |
| lhss | array to store left hand side values, or NULL |
| rhss | array to store right hand side values, or NULL |
Definition at line 1796 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiGetRows().
| SCIP_RETCODE SCIPlpiGetCoef | ( | SCIP_LPI * | lpi, |
| int | row, | ||
| int | col, | ||
| SCIP_Real * | val | ||
| ) |
gets a single coefficient
| lpi | LP interface structure |
| row | row number of coefficient |
| col | column number of coefficient |
| val | pointer to store the value of the coefficient |
Definition at line 1824 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
|
static |
gets the internal solution status of the solver
| lpi | LP interface structure |
| prosta | pointer to store the problem status |
| solsta | pointer to store the solution status |
Definition at line 1857 of file lpi_msk.c.
References MOSEK_CALL, NULL, SCIP_OKAY, and SCIP_LPi::task.
Referenced by SCIPlpiExistsDualRay(), SCIPlpiExistsPrimalRay(), SCIPlpiGetInternalStatus(), SCIPlpiHasDualRay(), SCIPlpiHasPrimalRay(), SCIPlpiIsDualFeasible(), SCIPlpiIsOptimal(), and SCIPlpiIsPrimalFeasible().
|
static |
Definition at line 1873 of file lpi_msk.c.
References ASSERT_ON_NUMERICAL_TROUBLES, optimizecount, and SCIPmessagePrintWarning().
Referenced by SCIPlpiSolveBarrier(), and SolveWSimplex().
|
static |
| lpi | LP interface structure |
Definition at line 1907 of file lpi_msk.c.
References bound, filterTRMrescode(), FORCE_NO_MAXITER, SCIP_LPi::itercount, MAX, SCIP_LPi::messagehdlr, MOSEK_CALL, MosekEnv, NULL, numdualmaxiter, numdualobj, numprimalmaxiter, numprimalobj, numstrongbranchmaxiterdo, numstrongbranchmaxiterup, numstrongbranchobjdo, numstrongbranchobjup, optimizecount, presolve(), SCIP_CALL, SCIP_LPERROR, SCIP_OKAY, SCIPdebugMessage, SCIPdebugPrintf, SCIPerrorMessage, SCIPlpiSolveBarrier(), SCIPmessagePrintWarning(), scipmskobjsen, SCIP_LPi::task, SCIP_LPi::termcode, TRUE, and WRITE_ABOVE.
Referenced by SCIPlpiSolveDual(), and SCIPlpiSolvePrimal().
| SCIP_RETCODE SCIPlpiSolvePrimal | ( | SCIP_LPI * | lpi | ) |
calls primal simplex to solve the LP
startFinishOptions - bits 1 - do not delete work areas and factorization at end 2 - use old factorization if same number of rows 4 - skip as much initialization of work areas as possible (work in progress)
4 does not seem to work.
Primal algorithm
| lpi | LP interface structure |
Definition at line 2216 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, NULL, numprimalmaxiter, numprimalobj, optimizecount, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SolveWSimplex(), SCIP_LPi::task, SCIP_LPi::termcode, and WRITE_ABOVE.
Referenced by handle_singular().
| SCIP_RETCODE SCIPlpiSolveDual | ( | SCIP_LPI * | lpi | ) |
calls dual simplex to solve the LP
startFinishOptions - bits 1 - do not delete work areas and factorization at end 2 - use old factorization if same number of rows 4 - skip as much initialization of work areas as possible (work in progress)
4 does not seem to work.
Dual algorithm
| lpi | LP interface structure |
Definition at line 2272 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, NULL, numdualmaxiter, numdualobj, optimizecount, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SolveWSimplex(), SCIP_LPi::task, SCIP_LPi::termcode, and WRITE_ABOVE.
Referenced by SCIPlpiStrongbranch().
| SCIP_RETCODE SCIPlpiSolveBarrier | ( | SCIP_LPI * | lpi, |
| SCIP_Bool | crossover | ||
| ) |
calls barrier or interior point algorithm to solve the LP with crossover to simplex basis
| lpi | LP interface structure |
| crossover | perform crossover |
Definition at line 2326 of file lpi_msk.c.
References filterTRMrescode(), SCIP_LPi::itercount, SCIP_LPi::lpid, SCIP_LPi::messagehdlr, MOSEK_CALL, MosekEnv, NULL, numdualmaxiter, optimizecount, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIP_LPi::task, SCIP_LPi::termcode, and WRITE_ABOVE.
Referenced by SolveWSimplex().
| SCIP_RETCODE SCIPlpiStartStrongbranch | ( | SCIP_LPI * | lpi | ) |
| SCIP_RETCODE SCIPlpiEndStrongbranch | ( | SCIP_LPI * | lpi | ) |
|
static |
performs strong branching iterations on all candidates
| lpi | LP interface structure |
| col | column to apply strong branching on |
| psol | current primal solution value of column |
| itlim | iteration limit for strong branchings |
| down | stores dual bound after branching column down |
| up | stores dual bound after branching column up |
| downvalid | stores whether the returned down value is a valid dual bound; otherwise, it can only be used as an estimate value |
| upvalid | stores whether the returned up value is a valid dual bound; otherwise, it can only be used as an estimate value |
| iter | stores total number of strong branching iterations, or -1; may be NULL |
Definition at line 2419 of file lpi_msk.c.
References bound, EPSCEIL, EPSEQ, EPSFLOOR, FALSE, getbase(), IS_NEGINF, IS_POSINF, SCIP_LPi::itercount, SCIP_LPi::lpid, SCIP_LPi::messagehdlr, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, numstrongbranchmaxiterdo, numstrongbranchmaxiterup, numstrongbranchobjdo, numstrongbranchobjup, optimizecount, SCIP_Bool, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPlpiExistsDualRay(), SCIPlpiExistsPrimalRay(), SCIPlpiGetSolFeasibility(), SCIPlpiIsStable(), SCIPlpiSolveDual(), SCIPmessagePrintWarning(), setbase(), STRONGBRANCH_PRICING, SCIP_LPi::task, SCIP_LPi::termcode, and TRUE.
Referenced by SCIPlpiStrongbranchesFrac(), SCIPlpiStrongbranchesInt(), SCIPlpiStrongbranchFrac(), and SCIPlpiStrongbranchInt().
| SCIP_RETCODE SCIPlpiStrongbranchFrac | ( | SCIP_LPI * | lpi, |
| int | col, | ||
| SCIP_Real | psol, | ||
| int | itlim, | ||
| SCIP_Real * | down, | ||
| SCIP_Real * | up, | ||
| SCIP_Bool * | downvalid, | ||
| SCIP_Bool * | upvalid, | ||
| int * | iter | ||
| ) |
performs strong branching iterations on one fractional candidate
| lpi | LP interface structure |
| col | column to apply strong branching on |
| psol | fractional current primal solution value of column |
| itlim | iteration limit for strong branchings |
| down | stores dual bound after branching column down |
| up | stores dual bound after branching column up |
| downvalid | stores whether the returned down value is a valid dual bound; otherwise, it can only be used as an estimate value |
| upvalid | stores whether the returned up value is a valid dual bound; otherwise, it can only be used as an estimate value |
| iter | stores total number of strong branching iterations, or -1; may be NULL |
Definition at line 2646 of file lpi_msk.c.
References SCIP_CALL, SCIP_OKAY, and SCIPlpiStrongbranch().
| SCIP_RETCODE SCIPlpiStrongbranchesFrac | ( | SCIP_LPI * | lpi, |
| int * | cols, | ||
| int | ncols, | ||
| SCIP_Real * | psols, | ||
| int | itlim, | ||
| SCIP_Real * | down, | ||
| SCIP_Real * | up, | ||
| SCIP_Bool * | downvalid, | ||
| SCIP_Bool * | upvalid, | ||
| int * | iter | ||
| ) |
performs strong branching iterations on given fractional candidates
| lpi | LP interface structure |
| cols | columns to apply strong branching on |
| ncols | number of columns |
| psols | fractional current primal solution values of columns |
| itlim | iteration limit for strong branchings |
| down | stores dual bounds after branching columns down |
| up | stores dual bounds after branching columns up |
| downvalid | stores whether the returned down values are valid dual bounds; otherwise, they can only be used as an estimate values |
| upvalid | stores whether the returned up values are a valid dual bounds; otherwise, they can only be used as an estimate values |
| iter | stores total number of strong branching iterations, or -1; may be NULL |
Definition at line 2667 of file lpi_msk.c.
References SCIP_LPi::ncols, NULL, SCIP_CALL, SCIP_OKAY, and SCIPlpiStrongbranch().
| SCIP_RETCODE SCIPlpiStrongbranchInt | ( | SCIP_LPI * | lpi, |
| int | col, | ||
| SCIP_Real | psol, | ||
| int | itlim, | ||
| SCIP_Real * | down, | ||
| SCIP_Real * | up, | ||
| SCIP_Bool * | downvalid, | ||
| SCIP_Bool * | upvalid, | ||
| int * | iter | ||
| ) |
performs strong branching iterations on one candidate with integral value
| lpi | LP interface structure |
| col | column to apply strong branching on |
| psol | current integral primal solution value of column |
| itlim | iteration limit for strong branchings |
| down | stores dual bound after branching column down |
| up | stores dual bound after branching column up |
| downvalid | stores whether the returned down value is a valid dual bound; otherwise, it can only be used as an estimate value |
| upvalid | stores whether the returned up value is a valid dual bound; otherwise, it can only be used as an estimate value |
| iter | stores total number of strong branching iterations, or -1; may be NULL |
Definition at line 2705 of file lpi_msk.c.
References SCIP_CALL, SCIP_OKAY, and SCIPlpiStrongbranch().
| SCIP_RETCODE SCIPlpiStrongbranchesInt | ( | SCIP_LPI * | lpi, |
| int * | cols, | ||
| int | ncols, | ||
| SCIP_Real * | psols, | ||
| int | itlim, | ||
| SCIP_Real * | down, | ||
| SCIP_Real * | up, | ||
| SCIP_Bool * | downvalid, | ||
| SCIP_Bool * | upvalid, | ||
| int * | iter | ||
| ) |
performs strong branching iterations on given candidates with integral values
| lpi | LP interface structure |
| cols | columns to apply strong branching on |
| ncols | number of columns |
| psols | current integral primal solution values of columns |
| itlim | iteration limit for strong branchings |
| down | stores dual bounds after branching columns down |
| up | stores dual bounds after branching columns up |
| downvalid | stores whether the returned down values are valid dual bounds; otherwise, they can only be used as an estimate values |
| upvalid | stores whether the returned up values are a valid dual bounds; otherwise, they can only be used as an estimate values |
| iter | stores total number of strong branching iterations, or -1; may be NULL |
Definition at line 2726 of file lpi_msk.c.
References SCIP_LPi::ncols, NULL, SCIP_CALL, SCIP_OKAY, and SCIPlpiStrongbranch().
returns whether a solve method was called after the last modification of the LP
| lpi | LP interface structure |
Definition at line 2770 of file lpi_msk.c.
References FALSE, SCIP_LPi::lpid, MosekEnv, NULL, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetSolFeasibility | ( | SCIP_LPI * | lpi, |
| SCIP_Bool * | primalfeasible, | ||
| SCIP_Bool * | dualfeasible | ||
| ) |
gets information about primal and dual feasibility of the current LP solution
| lpi | LP interface structure |
| primalfeasible | stores primal feasibility status |
| dualfeasible | stores dual feasibility status |
Definition at line 2798 of file lpi_msk.c.
References FALSE, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_Bool, SCIP_LPERROR, SCIP_OKAY, SCIPdebugMessage, SCIP_LPi::task, and TRUE.
Referenced by SCIPlpiStrongbranch().
returns TRUE iff LP is proven to have a primal unbounded ray (but not necessary a primal feasible point); this does not necessarily mean, that the solver knows and can return the primal ray
| lpi | LP interface structure |
Definition at line 2860 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiIsDualInfeasible(), and SCIPlpiStrongbranch().
returns TRUE iff LP is proven to have a primal unbounded ray (but not necessary a primal feasible point), and the solver knows and can return the primal ray
| lpi | LP interface structure |
Definition at line 2883 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
returns TRUE iff LP is proven to be primal infeasible
| lpi | LP interface structure |
Definition at line 2909 of file lpi_msk.c.
References SCIPlpiExistsDualRay().
returns TRUE iff LP is proven to be primal feasible
| lpi | LP interface structure |
Definition at line 2917 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
returns TRUE iff LP is proven to have a dual unbounded ray (but not necessary a dual feasible point); this does not necessarily mean, that the solver knows and can return the dual ray
| lpi | LP interface structure |
Definition at line 2937 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiGetState(), SCIPlpiIsPrimalInfeasible(), and SCIPlpiStrongbranch().
returns TRUE iff LP is proven to have a dual unbounded ray (but not necessary a dual feasible point), and the solver knows and can return the dual ray
| lpi | LP interface structure |
Definition at line 2960 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
returns TRUE iff LP is proven to be dual infeasible
| lpi | LP interface structure |
Definition at line 2986 of file lpi_msk.c.
References SCIPlpiExistsPrimalRay().
returns TRUE iff LP is proven to be dual feasible
| lpi | LP interface structure |
Definition at line 2994 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
returns TRUE iff LP was solved to optimality
| lpi | LP interface structure |
Definition at line 3013 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_ABORT_FALSE, SCIPdebugMessage, and SCIP_LPi::task.
returns TRUE iff current LP basis is stable
| lpi | LP interface structure |
Definition at line 3031 of file lpi_msk.c.
References MosekEnv, NULL, SCIP_LPi::task, and SCIP_LPi::termcode.
Referenced by SCIPlpiStrongbranch().
returns TRUE iff the objective limit was reached
| lpi | LP interface structure |
Definition at line 3046 of file lpi_msk.c.
References MosekEnv, NULL, SCIP_LPi::task, and SCIP_LPi::termcode.
returns TRUE iff the iteration limit was reached
| lpi | LP interface structure |
Definition at line 3058 of file lpi_msk.c.
References MosekEnv, NULL, SCIP_LPi::task, and SCIP_LPi::termcode.
returns TRUE iff the time limit was reached
| lpi | LP interface structure |
Definition at line 3070 of file lpi_msk.c.
References MosekEnv, NULL, SCIP_LPi::task, and SCIP_LPi::termcode.
| int SCIPlpiGetInternalStatus | ( | SCIP_LPI * | lpi | ) |
returns the internal solution status of the solver
| lpi | LP interface structure |
Definition at line 3082 of file lpi_msk.c.
References getSolutionStatus(), SCIP_LPi::lpid, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiIgnoreInstability | ( | SCIP_LPI * | lpi, |
| SCIP_Bool * | success | ||
| ) |
tries to reset the internal status of the LP solver in order to ignore an instability of the last solving call
| lpi | LP interface structure |
| success | pointer to store, whether the instability could be ignored |
Definition at line 3103 of file lpi_msk.c.
References FALSE, SCIP_LPi::lpid, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetObjval | ( | SCIP_LPI * | lpi, |
| SCIP_Real * | objval | ||
| ) |
gets objective value of solution
| lpi | LP interface structure |
| objval | stores the objective value |
Definition at line 3120 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetSol | ( | SCIP_LPI * | lpi, |
| SCIP_Real * | objval, | ||
| SCIP_Real * | primsol, | ||
| SCIP_Real * | dualsol, | ||
| SCIP_Real * | activity, | ||
| SCIP_Real * | redcost | ||
| ) |
gets primal and dual solution vectors
| lpi | LP interface structure |
| objval | stores the objective value, may be NULL if not needed |
| primsol | primal solution vector, may be NULL if not needed |
| dualsol | dual solution vector, may be NULL if not needed |
| activity | row activity vector, may be NULL if not needed |
| redcost | reduced cost vector, may be NULL if not needed |
Definition at line 3139 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetPrimalRay | ( | SCIP_LPI * | lpi, |
| SCIP_Real * | ray | ||
| ) |
gets primal ray for unbounded LPs
Unbounded ray (NULL returned if none/wrong). Up to user to use delete [] on these arrays.
| lpi | LP interface structure |
| ray | primal ray |
Definition at line 3185 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetDualfarkas | ( | SCIP_LPI * | lpi, |
| SCIP_Real * | dualfarkas | ||
| ) |
gets dual Farkas proof for infeasibility
Infeasibility ray (NULL returned if none/wrong). Up to user to use delete [] on these arrays.
| lpi | LP interface structure |
| dualfarkas | dual Farkas row multipliers |
Definition at line 3203 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetIterations | ( | SCIP_LPI * | lpi, |
| int * | iterations | ||
| ) |
gets the number of LP iterations of the last solve call
| lpi | LP interface structure |
| iterations | pointer to store the number of iterations of the last solve call |
Definition at line 3221 of file lpi_msk.c.
References SCIP_LPi::itercount, SCIP_LPi::lpid, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetRealSolQuality | ( | SCIP_LPI * | lpi, |
| SCIP_LPSOLQUALITY | qualityindicator, | ||
| SCIP_Real * | quality | ||
| ) |
gets information about the quality of an LP solution
Such information is usually only available, if also a (maybe not optimal) solution is available. The LPI should return SCIP_INVALID for quality, if the requested quantity is not available.
| lpi | LP interface structure |
| qualityindicator | indicates which quality should be returned |
| quality | pointer to store quality number |
Definition at line 3242 of file lpi_msk.c.
References NULL, SCIP_INVALID, and SCIP_OKAY.
|
static |
handle singular basis
| lpi | LP interface structure |
| basis | array of basis indices |
| res | result |
Definition at line 3258 of file lpi_msk.c.
References MOSEK_CALL, SCIP_CALL, SCIP_OKAY, SCIPlpiSolvePrimal(), and SCIP_LPi::task.
Referenced by SCIPlpiGetBasisInd().
|
static |
convert Mosek status to SCIP status
| lpi | LP interface structure |
| acc | ??? |
| sk | ??? |
| n | size |
| stat | status array |
Definition at line 3285 of file lpi_msk.c.
References MOSEK_CALL, NULL, SCIP_BASESTAT_BASIC, SCIP_BASESTAT_LOWER, SCIP_BASESTAT_UPPER, SCIP_BASESTAT_ZERO, SCIP_INVALIDDATA, SCIP_OKAY, SCIPABORT, and SCIP_LPi::task.
Referenced by lpistatePack(), and SCIPlpiGetBase().
|
static |
convert Mosek to SCIP status - slack variables
| lpi | LP interface structure |
| acc | whether constraints or variables are accessed |
| sk | Mosek basis status |
| m | size |
| stat | status array |
Definition at line 3341 of file lpi_msk.c.
References MOSEK_CALL, NULL, SCIP_BASESTAT_BASIC, SCIP_BASESTAT_LOWER, SCIP_BASESTAT_UPPER, SCIP_BASESTAT_ZERO, SCIP_INVALIDDATA, SCIP_OKAY, SCIPABORT, and SCIP_LPi::task.
Referenced by lpistatePack(), and SCIPlpiGetBase().
|
static |
convert SCIP to Mosek status
| stat | SCIP status array |
| n | size of array |
| resstat | resulting Mosek status array |
Definition at line 3391 of file lpi_msk.c.
References SCIP_BASESTAT_BASIC, SCIP_BASESTAT_LOWER, SCIP_BASESTAT_UPPER, SCIP_BASESTAT_ZERO, and SCIPABORT.
Referenced by lpistateUnpack(), and SCIPlpiSetBase().
|
static |
convert SCIP to Mosek status - slack variables
| stat | SCIP status array |
| n | size of array |
| resstat | resulting Mosek status array |
Definition at line 3422 of file lpi_msk.c.
References SCIP_BASESTAT_BASIC, SCIP_BASESTAT_LOWER, SCIP_BASESTAT_UPPER, SCIP_BASESTAT_ZERO, and SCIPABORT.
Referenced by lpistateUnpack(), and SCIPlpiSetBase().
| SCIP_RETCODE SCIPlpiGetBase | ( | SCIP_LPI * | lpi, |
| int * | cstat, | ||
| int * | rstat | ||
| ) |
gets current basis status for columns and rows; arrays must be large enough to store the basis status
| lpi | LP interface structure |
| cstat | array to store column basis status, or NULL |
| rstat | array to store row basis status, or NULL |
Definition at line 3454 of file lpi_msk.c.
References convertstat_mosek2scip(), convertstat_mosek2scip_slack(), getbase(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIP_LPi::skc, SCIP_LPi::skx, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiSetBase | ( | SCIP_LPI * | lpi, |
| const int * | cstat, | ||
| const int * | rstat | ||
| ) |
sets current basis status for columns and rows
Whats changed since last solve. Is only used when startFinishOptions used in dual or primal. Bit 1 - number of rows/columns has not changed (so work arrays valid) 2 - matrix has not changed 4 - if matrix has changed only by adding rows 8 - if matrix has changed only by adding columns 16 - row lbs not changed 32 - row ubs not changed 64 - column objective not changed 128 - column lbs not changed 256 - column ubs not changed 512 - basis not changed (up to user to set this to 0) top bits may be used internally
| lpi | LP interface structure |
| cstat | array with column basis status |
| rstat | array with row basis status |
Definition at line 3488 of file lpi_msk.c.
References convertstat_scip2mosek(), convertstat_scip2mosek_slack(), ensureStateMem(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, setbase(), SCIP_LPi::skc, SCIP_LPi::skx, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetBasisInd | ( | SCIP_LPI * | lpi, |
| int * | bind | ||
| ) |
returns the indices of the basic columns and rows; basic column n gives value n, basic row m gives value -1-m
| lpi | LP interface structure |
| bind | pointer to store basis indices ready to keep number of rows entries |
Definition at line 3518 of file lpi_msk.c.
References handle_singular(), SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetBInvCol | ( | SCIP_LPI * | lpi, |
| int | c, | ||
| SCIP_Real * | coef, | ||
| int * | inds, | ||
| int * | ninds | ||
| ) |
get column of inverse basis matrix B^-1
| lpi | LP interface structure |
| c | column number of B^-1; this is NOT the number of the column in the LP; you have to call SCIPlpiGetBasisInd() to get the array which links the B^-1 column numbers to the row and column numbers of the LP! c must be between 0 and nrows-1, since the basis has the size nrows * nrows |
| coef | pointer to store the coefficients of the column |
| inds | array to store the non-zero indices |
| ninds | pointer to store the number of non-zero indices (-1: if we do not store sparsity informations) |
Definition at line 3563 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetBInvRow | ( | SCIP_LPI * | lpi, |
| int | row, | ||
| SCIP_Real * | coef, | ||
| int * | inds, | ||
| int * | ninds | ||
| ) |
get row of inverse basis matrix B^-1
| lpi | LP interface structure |
| row | row number |
| coef | pointer to store the coefficients of the row |
| inds | array to store the non-zero indices |
| ninds | pointer to store the number of non-zero indices (-1: if we do not store sparsity informations) |
Definition at line 3634 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_ALLOC, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by SCIPlpiGetBInvARow().
| SCIP_RETCODE SCIPlpiGetBInvARow | ( | SCIP_LPI * | lpi, |
| int | row, | ||
| const SCIP_Real * | binvrow, | ||
| SCIP_Real * | coef, | ||
| int * | inds, | ||
| int * | ninds | ||
| ) |
get row of inverse basis matrix times constraint matrix B^-1 * A
| lpi | LP interface structure |
| row | row number |
| binvrow | row in (A_B)^-1 from prior call to SCIPlpiGetBInvRow(), or NULL |
| coef | vector to return coefficients |
| inds | array to store the non-zero indices |
| ninds | pointer to store the number of non-zero indices (-1: if we do not store sparsity informations) |
Definition at line 3701 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPdebugMessage, SCIPlpiGetBInvRow(), and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetBInvACol | ( | SCIP_LPI * | lpi, |
| int | c, | ||
| SCIP_Real * | coef, | ||
| int * | inds, | ||
| int * | ninds | ||
| ) |
get column of inverse basis matrix times constraint matrix B^-1 * A
| lpi | LP interface structure |
| c | column number |
| coef | vector to return coefficients |
| inds | array to store the non-zero indices, or NULL |
| ninds | pointer to store the number of non-zero indices, or NULL (-1: if we do not store sparsity informations) |
Definition at line 3779 of file lpi_msk.c.
References BMSallocMemoryArray, BMSfreeMemoryArray, SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, SCIP_LPi::nrows, NULL, SCIP_ALLOC, SCIP_OKAY, SCIP_Real, SCIPdebugMessage, and SCIP_LPi::task.
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creates LPi state information object
| lpistate | pointer to LPi state |
| blkmem | block memory |
| ncols | number of columns to store |
| nrows | number of rows to store |
Definition at line 3863 of file lpi_msk.c.
References BMSallocBlockMemory, BMSallocBlockMemoryArray, colpacketNum(), SCIP_LPi::ncols, SCIP_LPiState::ncols, SCIP_LPi::nrows, SCIP_LPiState::nrows, NULL, SCIP_LPiState::num, rowpacketNum(), SCIP_ALLOC, SCIP_OKAY, and SCIP_LPiState::solsta.
Referenced by SCIPlpiGetState().
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frees LPi state information
| lpistate | pointer to LPi state information (like basis information) |
| blkmem | block memory |
Definition at line 3892 of file lpi_msk.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArray, colpacketNum(), NULL, and rowpacketNum().
Referenced by SCIPlpiFreeState().
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check state
| lpi | LP interface structure |
| n | number of rows or columns |
| sk | ??? |
| accmode | ??? |
| xc | ??? |
Definition at line 3909 of file lpi_msk.c.
References DEBUG_CHECK_STATE_TOL, MOSEK_CALL, NULL, optimizecount, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
Referenced by checkState().
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check state
| lpi | LP interface structure |
| ncols | number of columns |
| nrows | number of rows |
Definition at line 3955 of file lpi_msk.c.
References checkState1(), SCIP_CALL, SCIP_OKAY, SCIP_LPi::skc, and SCIP_LPi::skx.
Referenced by SCIPlpiGetState().
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store row and column basis status in a packed LPi state object
| lpi | LP interface structure |
| lpistate | pointer to LPi state data |
Definition at line 3970 of file lpi_msk.c.
References convertstat_mosek2scip(), convertstat_mosek2scip_slack(), SCIP_LPiState::ncols, SCIP_LPiState::nrows, SCIP_CALL, SCIP_OKAY, SCIPencodeDualBit(), SCIP_LPi::skc, SCIP_LPiState::skc, SCIP_LPi::skx, and SCIP_LPiState::skx.
Referenced by SCIPlpiGetState().
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unpacks row and column basis status from a packed LPi state object
| lpistate | pointer to LPi state data |
| skx | ??? |
| skc | ??? |
Definition at line 3991 of file lpi_msk.c.
References convertstat_scip2mosek(), convertstat_scip2mosek_slack(), SCIP_LPiState::ncols, SCIP_LPiState::nrows, SCIPdecodeDualBit(), SCIP_LPiState::skc, and SCIP_LPiState::skx.
Referenced by SCIPlpiSetState().
| SCIP_RETCODE SCIPlpiGetState | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_LPISTATE ** | lpistate | ||
| ) |
stores LP state (like basis information) into lpistate object
| lpi | LP interface structure |
| blkmem | block memory |
| lpistate | pointer to LP state information (like basis information) |
Definition at line 4007 of file lpi_msk.c.
References checkState(), getbase(), SCIP_LPi::lpid, lpistateCreate(), lpistatePack(), MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPi::nrows, NULL, SCIP_LPiState::num, optimizecount, SCIP_CALL, SCIP_OKAY, SCIPdebugMessage, SCIPlpiExistsDualRay(), SCIP_LPiState::solsta, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiSetState | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| const SCIP_LPISTATE * | lpistate | ||
| ) |
loads LPi state (like basis information) into solver; note that the LP might have been extended with additional columns and rows since the state was stored with SCIPlpiGetState()
| lpi | LP interface structure |
| blkmem | block memory |
| lpistate | LP state information (like basis information) |
Definition at line 4061 of file lpi_msk.c.
References ensureStateMem(), getbase(), lpistateUnpack(), MOSEK_CALL, MosekEnv, SCIP_LPi::ncols, SCIP_LPiState::ncols, SCIP_LPi::nrows, SCIP_LPiState::nrows, NULL, SCIP_LPiState::num, REALABS, SCIP_CALL, SCIP_OKAY, SCIP_Real, SCIPdebugMessage, SCIPlpiIsInfinity(), setbase(), SCIP_LPi::skc, SCIP_LPi::skx, SCIP_LPiState::solsta, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiClearState | ( | SCIP_LPI * | lpi | ) |
clears current LPi state (like basis information) of the solver
| lpi | LP interface structure |
Definition at line 4123 of file lpi_msk.c.
References SCIP_LPi::messagehdlr, NULL, SCIP_OKAY, and SCIPmessagePrintWarning().
| SCIP_RETCODE SCIPlpiFreeState | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_LPISTATE ** | lpistate | ||
| ) |
frees LP state information
| lpi | LP interface structure |
| blkmem | block memory |
| lpistate | pointer to LP state information (like basis information) |
Definition at line 4136 of file lpi_msk.c.
References SCIP_LPi::lpid, lpistateFree(), MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_Bool SCIPlpiHasStateBasis | ( | SCIP_LPI * | lpi, |
| SCIP_LPISTATE * | lpistate | ||
| ) |
checks, whether the given LP state contains simplex basis information
| lpi | LP interface structure |
| lpistate | LP state information (like basis information) |
Definition at line 4157 of file lpi_msk.c.
References SCIP_LPi::lpid, MosekEnv, NULL, SCIP_LPiState::num, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiReadState | ( | SCIP_LPI * | lpi, |
| const char * | fname | ||
| ) |
reads LP state (like basis information from a file
Read a basis from the given filename, returns -1 on file error, 0 if no values, 1 if values
| lpi | LP interface structure |
| fname | file name |
Definition at line 4172 of file lpi_msk.c.
References MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiWriteState | ( | SCIP_LPI * | lpi, |
| const char * | fname | ||
| ) |
writes LP state (like basis information) to a file
Write the basis in MPS format to the specified file. If writeValues true, writes values of structurals (and adds VALUES to end of NAME card)
parameters:
| lpi | LP interface structure |
| fname | file name |
Definition at line 4189 of file lpi_msk.c.
References MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetNorms | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_LPINORMS ** | lpinorms | ||
| ) |
| SCIP_RETCODE SCIPlpiSetNorms | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| const SCIP_LPINORMS * | lpinorms | ||
| ) |
loads LPi pricing norms into solver; note that the LP might have been extended with additional columns and rows since the state was stored with SCIPlpiGetNorms()
| lpi | LP interface structure |
| blkmem | block memory |
| lpinorms | LPi pricing norms information |
| SCIP_RETCODE SCIPlpiFreeNorms | ( | SCIP_LPI * | lpi, |
| BMS_BLKMEM * | blkmem, | ||
| SCIP_LPINORMS ** | lpinorms | ||
| ) |
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method mapping parameter index to parameter name
Definition at line 4293 of file lpi_msk.c.
References paramname, SCIP_LPPAR_BARRIERCONVTOL, SCIP_LPPAR_DUALFEASTOL, SCIP_LPPAR_FASTMIP, SCIP_LPPAR_FEASTOL, SCIP_LPPAR_FROMSCRATCH, SCIP_LPPAR_LOBJLIM, SCIP_LPPAR_LPINFO, SCIP_LPPAR_LPITLIM, SCIP_LPPAR_LPTILIM, SCIP_LPPAR_MARKOWITZ, SCIP_LPPAR_PRESOLVING, SCIP_LPPAR_PRICING, SCIP_LPPAR_ROWREPSWITCH, SCIP_LPPAR_SCALING, SCIP_LPPAR_THREADS, and SCIP_LPPAR_UOBJLIM.
Referenced by SCIPlpiGetIntpar(), SCIPlpiGetRealpar(), SCIPlpiSetIntpar(), and SCIPlpiSetRealpar().
| SCIP_RETCODE SCIPlpiGetIntpar | ( | SCIP_LPI * | lpi, |
| SCIP_LPPARAM | type, | ||
| int * | ival | ||
| ) |
gets integer parameter of LP
| lpi | LP interface structure |
| type | parameter number |
| ival | buffer to store the parameter value |
Definition at line 4319 of file lpi_msk.c.
References MOSEK_CALL, MosekEnv, NULL, paramty2str(), SCIP_LPi::pricing, SCIP_LPPAR_FASTMIP, SCIP_LPPAR_FROMSCRATCH, SCIP_LPPAR_LPINFO, SCIP_LPPAR_LPITLIM, SCIP_LPPAR_PRESOLVING, SCIP_LPPAR_PRICING, SCIP_LPPAR_SCALING, SCIP_OKAY, SCIP_PARAMETERUNKNOWN, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiSetIntpar | ( | SCIP_LPI * | lpi, |
| SCIP_LPPARAM | type, | ||
| int | ival | ||
| ) |
sets integer parameter of LP
Amount of print out: 0 - none 1 - just final 2 - just factorizations 3 - as 2 plus a bit more 4 - verbose above that 8,16,32 etc just for selective SCIPdebug
| lpi | LP interface structure |
| type | parameter number |
| ival | parameter value |
Definition at line 4370 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, paramty2str(), SCIP_LPi::pricing, SCIP_LPPAR_FASTMIP, SCIP_LPPAR_FROMSCRATCH, SCIP_LPPAR_LPINFO, SCIP_LPPAR_LPITLIM, SCIP_LPPAR_PRESOLVING, SCIP_LPPAR_PRICING, SCIP_LPPAR_SCALING, SCIP_OKAY, SCIP_PARAMETERUNKNOWN, SCIP_PRICING_AUTO, SCIP_PRICING_DEVEX, SCIP_PRICING_FULL, SCIP_PRICING_LPIDEFAULT, SCIP_PRICING_PARTIAL, SCIP_PRICING_STEEP, SCIP_PRICING_STEEPQSTART, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiGetRealpar | ( | SCIP_LPI * | lpi, |
| SCIP_LPPARAM | type, | ||
| SCIP_Real * | dval | ||
| ) |
gets floating point parameter of LP
| lpi | LP interface structure |
| type | parameter number |
| dval | buffer to store the parameter value |
Definition at line 4511 of file lpi_msk.c.
References MOSEK_CALL, MosekEnv, NULL, paramty2str(), SCIP_LPPAR_BARRIERCONVTOL, SCIP_LPPAR_DUALFEASTOL, SCIP_LPPAR_FEASTOL, SCIP_LPPAR_LOBJLIM, SCIP_LPPAR_LPTILIM, SCIP_LPPAR_MARKOWITZ, SCIP_LPPAR_UOBJLIM, SCIP_OKAY, SCIP_PARAMETERUNKNOWN, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiSetRealpar | ( | SCIP_LPI * | lpi, |
| SCIP_LPPARAM | type, | ||
| SCIP_Real | dval | ||
| ) |
sets floating point parameter of LP
| lpi | LP interface structure |
| type | parameter number |
| dval | parameter value |
Definition at line 4554 of file lpi_msk.c.
References MOSEK_CALL, MosekEnv, NULL, paramty2str(), SCIP_LPPAR_BARRIERCONVTOL, SCIP_LPPAR_DUALFEASTOL, SCIP_LPPAR_FEASTOL, SCIP_LPPAR_LOBJLIM, SCIP_LPPAR_LPTILIM, SCIP_LPPAR_MARKOWITZ, SCIP_LPPAR_UOBJLIM, SCIP_OKAY, SCIP_PARAMETERUNKNOWN, SCIPdebugMessage, and SCIP_LPi::task.
returns value treated as infinity in the LP solver
| lpi | LP interface structure |
Definition at line 4612 of file lpi_msk.c.
References MosekEnv, NULL, and SCIP_LPi::task.
checks if given value is treated as infinity in the LP solver
| lpi | LP interface structure |
| val | value to be checked for infinity |
Definition at line 4624 of file lpi_msk.c.
References IS_POSINF, MosekEnv, NULL, and SCIP_LPi::task.
Referenced by SCIPlpiChgBounds(), and SCIPlpiSetState().
| SCIP_RETCODE SCIPlpiReadLP | ( | SCIP_LPI * | lpi, |
| const char * | fname | ||
| ) |
reads LP from a file
read file in MPS format parameters: filename bool keepNames bool ignoreErrors
| lpi | LP interface structure |
| fname | file name |
Definition at line 4643 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
| SCIP_RETCODE SCIPlpiWriteLP | ( | SCIP_LPI * | lpi, |
| const char * | fname | ||
| ) |
writes LP to a file
write file in MPS format parameters: filename int formatType (0 - normal, 1 - extra accuracy, 2 - IEEE hex) int numberAcross (1 or 2 values should be specified on every data line in the MPS file) double objSense
| lpi | LP interface structure |
| fname | file name |
Definition at line 4665 of file lpi_msk.c.
References SCIP_LPi::lpid, MOSEK_CALL, MosekEnv, NULL, SCIP_OKAY, SCIPdebugMessage, and SCIP_LPi::task.
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Definition at line 67 of file lpi_msk.c.
Referenced by getASlice(), SCIPlpiAddCols(), SCIPlpiAddRows(), SCIPlpiChgBounds(), SCIPlpiChgCoef(), SCIPlpiChgObj(), SCIPlpiChgObjsen(), SCIPlpiChgSides(), SCIPlpiClear(), SCIPlpiCreate(), SCIPlpiDelCols(), SCIPlpiDelColset(), SCIPlpiDelRows(), SCIPlpiDelRowset(), SCIPlpiExistsDualRay(), SCIPlpiExistsPrimalRay(), SCIPlpiFree(), SCIPlpiFreeState(), SCIPlpiGetBase(), SCIPlpiGetBasisInd(), SCIPlpiGetBInvACol(), SCIPlpiGetBInvARow(), SCIPlpiGetBInvCol(), SCIPlpiGetBInvRow(), SCIPlpiGetBounds(), SCIPlpiGetCoef(), SCIPlpiGetCols(), SCIPlpiGetDualfarkas(), SCIPlpiGetInternalStatus(), SCIPlpiGetIntpar(), SCIPlpiGetIterations(), SCIPlpiGetNCols(), SCIPlpiGetNNonz(), SCIPlpiGetNRows(), SCIPlpiGetObj(), SCIPlpiGetObjval(), SCIPlpiGetPrimalRay(), SCIPlpiGetRealpar(), SCIPlpiGetRows(), SCIPlpiGetSides(), SCIPlpiGetSol(), SCIPlpiGetSolFeasibility(), SCIPlpiGetState(), SCIPlpiHasDualRay(), SCIPlpiHasPrimalRay(), SCIPlpiHasStateBasis(), SCIPlpiIgnoreInstability(), SCIPlpiInfinity(), SCIPlpiIsDualFeasible(), SCIPlpiIsInfinity(), SCIPlpiIsIterlimExc(), SCIPlpiIsObjlimExc(), SCIPlpiIsOptimal(), SCIPlpiIsPrimalFeasible(), SCIPlpiIsStable(), SCIPlpiIsTimelimExc(), SCIPlpiLoadColLP(), SCIPlpiReadLP(), SCIPlpiReadState(), SCIPlpiScaleCol(), SCIPlpiScaleRow(), SCIPlpiSetBase(), SCIPlpiSetIntpar(), SCIPlpiSetRealpar(), SCIPlpiSetState(), SCIPlpiSolveBarrier(), SCIPlpiStrongbranch(), SCIPlpiWasSolved(), SCIPlpiWriteLP(), SCIPlpiWriteState(), and SolveWSimplex().
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Definition at line 68 of file lpi_msk.c.
Referenced by SCIPlpiCreate(), and SCIPlpiFree().
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Definition at line 70 of file lpi_msk.c.
Referenced by checkState1(), filterTRMrescode(), SCIPlpiGetState(), SCIPlpiSolveBarrier(), SCIPlpiSolveDual(), SCIPlpiSolvePrimal(), SCIPlpiStrongbranch(), and SolveWSimplex().
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Definition at line 71 of file lpi_msk.c.
Referenced by SCIPlpiCreate().
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Definition at line 72 of file lpi_msk.c.
Referenced by SCIPlpiStrongbranch(), and SolveWSimplex().
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Definition at line 73 of file lpi_msk.c.
Referenced by SCIPlpiStrongbranch(), and SolveWSimplex().
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Definition at line 74 of file lpi_msk.c.
Referenced by SCIPlpiSolvePrimal(), and SolveWSimplex().
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Definition at line 75 of file lpi_msk.c.
Referenced by SCIPlpiSolveBarrier(), SCIPlpiSolveDual(), and SolveWSimplex().
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Definition at line 76 of file lpi_msk.c.
Referenced by SCIPlpiStrongbranch(), and SolveWSimplex().
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Definition at line 77 of file lpi_msk.c.
Referenced by SCIPlpiStrongbranch(), and SolveWSimplex().
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Definition at line 78 of file lpi_msk.c.
Referenced by SCIPlpiSolvePrimal(), and SolveWSimplex().
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Definition at line 79 of file lpi_msk.c.
Referenced by SCIPlpiSolveDual(), and SolveWSimplex().
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Definition at line 598 of file lpi_msk.c.
Referenced by SCIPlpiGetSolverName().
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constant array containing the parameter names
Definition at line 4271 of file lpi_msk.c.
Referenced by addFixParamDialog(), addSetParamDialog(), checkTransferBoolParam(), emphasisParse(), paramSetBool(), paramSetChar(), paramSetInt(), paramSetLongint(), paramsetParse(), paramSetReal(), paramsetSetHeuristicsAggressive(), paramsetSetHeuristicsDefault(), paramsetSetHeuristicsOff(), paramsetSetPresolvingAggressive(), paramsetSetPresolvingDefault(), paramsetSetPresolvingFast(), paramsetSetPresolvingOff(), paramsetSetSeparatingAggressive(), paramsetSetSeparatingDefault(), paramsetSetSeparatingOff(), paramty2str(), SCIP_DECL_CONCSOLVERCREATEINST(), SCIPbranchruleCreate(), SCIPcomprCreate(), SCIPconcsolverTypeCreate(), SCIPconflicthdlrCreate(), SCIPconshdlrCreate(), SCIPdispCreate(), SCIPdivesetCreate(), SCIPheurCreate(), SCIPincludeDialogDefaultFix(), SCIPincludeDialogDefaultSet(), SCIPincludeNlpi(), SCIPincludeNonlinconsUpgrade(), SCIPincludeQuadconsUpgrade(), SCIPnodeselCreate(), SCIPparamsetCopyParams(), SCIPparamsetSetEmphasis(), SCIPparamsetSetToDefault(), SCIPparamsetSetToSubscipsOff(), SCIPpresolCreate(), SCIPpricerCreate(), SCIPpropCreate(), SCIPrelaxCreate(), SCIPsepaCreate(), SCIPsetConshdlrPresol(), SCIPsetConshdlrProp(), SCIPsetConshdlrSepa(), and SCIPsetPropPresol().