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GAMS file reader and writer.
- Author
- Ambros Gleixner
This reader writes a CIP in GAMS format. It can write all kinds of linear and nonlinear constraints (as occurring in MINLPs) and indicator constraints.
If SCIP has been compiled with GAMS=true, it can also read GAMS model instances. This requires a working GAMS system.
Definition in file reader_gms.h.
Go to the source code of this file.
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| SCIP_RETCODE | SCIPincludeReaderGms (SCIP *scip) |
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| SCIP_RETCODE | SCIPwriteGms (SCIP *scip, FILE *file, const char *name, SCIP_Bool transformed, SCIP_OBJSENSE objsense, SCIP_Real objscale, SCIP_Real objoffset, SCIP_VAR **vars, int nvars, int nbinvars, int nintvars, int nimplvars, int ncontvars, SCIP_CONS **conss, int nconss, SCIP_RESULT *result) |
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includes the gms file reader into SCIP
includes the gms file reader in SCIP
- Parameters
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Definition at line 2156 of file reader_gms.c.
References FALSE, GMS_DEFAULT_BIGM, GMS_DEFAULT_INDICATORREFORM, GMS_DEFAULT_SIGNPOWER, NULL, READER_DESC, READER_EXTENSION, READER_NAME, SCIP_CALL, SCIP_OKAY, SCIP_REAL_MAX, SCIPaddBoolParam(), SCIPaddCharParam(), SCIPaddRealParam(), SCIPincludeReaderBasic(), SCIPsetReaderCopy(), SCIPsetReaderFree(), SCIPsetReaderRead(), and SCIPsetReaderWrite().
Referenced by SCIP_DECL_READERCOPY(), and SCIPincludeDefaultPlugins().
| SCIP_RETCODE SCIPwriteGms |
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SCIP * |
scip, |
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FILE * |
file, |
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const char * |
name, |
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SCIP_Bool |
transformed, |
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SCIP_OBJSENSE |
objsense, |
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SCIP_Real |
objscale, |
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SCIP_Real |
objoffset, |
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SCIP_VAR ** |
vars, |
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int |
nvars, |
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int |
nbinvars, |
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int |
nintvars, |
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int |
nimplvars, |
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int |
ncontvars, |
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SCIP_CONS ** |
conss, |
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int |
nconss, |
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SCIP_RESULT * |
result |
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) |
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writes problem to file
writes problem to gms file
- Parameters
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| scip | SCIP data structure |
| file | output file, or NULL if standard output should be used |
| name | problem name |
| transformed | TRUE iff problem is the transformed problem |
| objsense | objective sense |
| objscale | scalar applied to objective function; external objective value is extobj = objsense * objscale * (intobj + objoffset) |
| objoffset | objective offset from bound shifting and fixing |
| vars | array with active variables ordered binary, integer, implicit, continuous |
| nvars | number of active variables in the problem |
| nbinvars | number of binary variables |
| nintvars | number of general integer variables |
| nimplvars | number of implicit integer variables |
| ncontvars | number of continuous variables |
| conss | array with constraints of the problem |
| nconss | number of constraints in the problem |
| result | pointer to store the result of the file writing call |
Definition at line 2203 of file reader_gms.c.
References appendLine(), checkConsnames(), checkVarnames(), clearLine(), endLine(), FALSE, GMS_MAX_LINELEN, GMS_MAX_NAMELEN, GMS_MAX_PRINTLEN, isGAMSprintableSOC(), NULL, printActiveVariables(), printConformName(), printIndicatorCons(), printLinearCons(), printNonlinearCons(), printQuadraticCons(), printSignpowerCons(), printSOCCons(), printSOSCons(), SCIP_Bool, SCIP_CALL, SCIP_Longint, SCIP_OBJSENSE_MINIMIZE, SCIP_OKAY, SCIP_Real, SCIP_SETPPCTYPE_COVERING, SCIP_SETPPCTYPE_PACKING, SCIP_SETPPCTYPE_PARTITIONING, SCIP_STAGE_EXITPRESOLVE, SCIP_STAGE_INITPRESOLVE, SCIP_SUCCESS, SCIP_VARSTATUS_NEGATED, SCIP_VARSTATUS_ORIGINAL, SCIP_VARTYPE_IMPLINT, SCIPallocBufferArray, SCIPceil(), SCIPconsGetHdlr(), SCIPconsGetName(), SCIPconshdlrGetName(), SCIPconsIsEnabled(), SCIPconsIsTransformed(), SCIPexprgraphGetTree(), SCIPexprtreeFree(), SCIPexprtreeGetMaxDegree(), SCIPfeasFloor(), SCIPfloor(), SCIPfreeBufferArray, SCIPgetBilinTermsQuadratic(), SCIPgetBinaryVarIndicator(), SCIPgetBoolParam(), SCIPgetCapacityKnapsack(), SCIPgetCoefLinearAbspower(), SCIPgetCoefsLinearVarsQuadratic(), SCIPgetExponentAbspower(), SCIPgetExprgraphNodeNonlinear(), SCIPgetExprgraphNonlinear(), SCIPgetExprtreeBivariate(), SCIPgetExprtreeCoefsNonlinear(), SCIPgetExprtreesNonlinear(), SCIPgetLhsAbspower(), SCIPgetLhsBivariate(), SCIPgetLhsCoefsSOC(), SCIPgetLhsConstantSOC(), SCIPgetLhsLinear(), SCIPgetLhsNonlinear(), SCIPgetLhsOffsetsSOC(), SCIPgetLhsQuadratic(), SCIPgetLhsVarbound(), SCIPgetLhsVarsSOC(), SCIPgetLinearCoefBivariate(), SCIPgetLinearCoefsNonlinear(), SCIPgetLinearVarAbspower(), SCIPgetLinearVarBivariate(), SCIPgetLinearVarsNonlinear(), SCIPgetLinearVarsQuadratic(), SCIPgetNBilinTermsQuadratic(), SCIPgetNExprtreesNonlinear(), SCIPgetNLhsVarsSOC(), SCIPgetNLinearVarsNonlinear(), SCIPgetNLinearVarsQuadratic(), SCIPgetNonlinearVarAbspower(), SCIPgetNQuadVarTermsQuadratic(), SCIPgetNVarsKnapsack(), SCIPgetNVarsLinear(), SCIPgetNVarsLogicor(), SCIPgetNVarsSetppc(), SCIPgetNVarsSOS1(), SCIPgetNVarsSOS2(), SCIPgetOffsetAbspower(), SCIPgetQuadVarTermsQuadratic(), SCIPgetRhsAbspower(), SCIPgetRhsBivariate(), SCIPgetRhsCoefSOC(), SCIPgetRhsLinear(), SCIPgetRhsNonlinear(), SCIPgetRhsOffsetSOC(), SCIPgetRhsQuadratic(), SCIPgetRhsVarbound(), SCIPgetRhsVarSOC(), SCIPgetSlackVarIndicator(), SCIPgetStage(), SCIPgetTypeSetppc(), SCIPgetValsLinear(), SCIPgetVarsKnapsack(), SCIPgetVarsLinear(), SCIPgetVarsLogicor(), SCIPgetVarsSetppc(), SCIPgetVarsSOS1(), SCIPgetVarsSOS2(), SCIPgetVarVarbound(), SCIPgetVbdcoefVarbound(), SCIPgetVbdvarVarbound(), SCIPgetWeightsKnapsack(), SCIPinfinity(), SCIPinfoMessage(), SCIPisEQ(), SCIPisFeasEQ(), SCIPisInfinity(), SCIPisZero(), SCIPprintCons(), SCIPsnprintf(), SCIPvarGetLbLocal(), SCIPvarGetLbOriginal(), SCIPvarGetName(), SCIPvarGetObj(), SCIPvarGetStatus(), SCIPvarGetType(), SCIPvarGetUbLocal(), SCIPvarGetUbOriginal(), SCIPvarIsActive(), SCIPwarningMessage(), and TRUE.
Referenced by SCIP_DECL_READERWRITE().
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