SCIP-SDP
2.0.0
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SDP relaxator. More...
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Functions | |
EXTERN SCIP_RETCODE | SCIPincludeRelaxSdp (SCIP *scip) |
EXTERN SCIP_RETCODE | SCIPrelaxSdpGetPrimalBoundVars (SCIP_RELAX *relax, SCIP_Real *lbvars, SCIP_Real *ubvars, int *arraylength) |
EXTERN SCIP_RETCODE | SCIPrelaxSdpRelaxVal (SCIP_RELAX *relax, SCIP_Bool *success, SCIP_Real *objval) |
EXTERN SCIP_RETCODE | SCIPrelaxSdpGetRelaxSol (SCIP *scip, SCIP_RELAX *relax, SCIP_Bool *success, SCIP_Real *solarray, int *sollength) |
EXTERN long int | SCIPrelaxSdpGetSdpNode (SCIP_RELAX *relax) |
EXTERN SCIP_Bool | SCIPrelaxSdpSolvedOrig (SCIP_RELAX *relax) |
EXTERN int | SCIPrelaxSdpGetNIterations (SCIP_RELAX *relax) |
EXTERN int | SCIPrelaxSdpGetNSdpCalls (SCIP_RELAX *relax) |
SDP relaxator.
Definition in file relax_sdp.h.
EXTERN SCIP_RETCODE SCIPincludeRelaxSdp | ( | SCIP * | scip | ) |
creates the SDP relaxator and includes it in SCIP
scip | SCIP data structure |
Definition at line 964 of file relax_sdp.c.
References DEFAULT_OBJLIMIT, DEFAULT_SDPSOLVEREPSILON, DEFAULT_SDPSOLVERFEASTOL, RELAX_DESC, RELAX_FREQ, RELAX_NAME, RELAX_PRIORITY, SCIPsdpiCreate(), SCIPsdpiGetSolverDesc(), and SCIPsdpiGetSolverName().
Referenced by runSCIP(), and SCIP_DECL_RELAXCOPY().
EXTERN SCIP_RETCODE SCIPrelaxSdpGetPrimalBoundVars | ( | SCIP_RELAX * | relax, |
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.
relax | SDP relaxator to information for |
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 1025 of file relax_sdp.c.
References SCIPsdpiGetPrimalBoundVars().
Referenced by SCIP_DECL_PROPEXEC().
EXTERN SCIP_RETCODE SCIPrelaxSdpRelaxVal | ( | SCIP_RELAX * | relax, |
SCIP_Bool * | success, | ||
SCIP_Real * | objval | ||
) |
returns optimal objective value of the current SDP relaxation, if the last SDP relaxation was successfully solved
relax | SDP relaxator to get objective value for |
success | pointer to store whether the last SDP relaxation solved successfully |
objval | pointer to store the optimal objective value of the SDP relaxation |
Definition at line 1050 of file relax_sdp.c.
Referenced by SCIP_DECL_PROPEXEC().
EXTERN SCIP_RETCODE SCIPrelaxSdpGetRelaxSol | ( | SCIP * | scip, |
SCIP_RELAX * | relax, | ||
SCIP_Bool * | success, | ||
SCIP_Real * | solarray, | ||
int * | sollength | ||
) |
returns values of all variables in the solution of the current SDP relaxation, if the last SDP relaxation was successfully solved
scip | SCIP pointer |
relax | SDP relaxator to get solution for |
success | pointer to store whether the last SDP relaxation solved successfully |
solarray | pointer to store the solution, this has to be at least length nvars |
sollength | length of the solarray |
Definition at line 1072 of file relax_sdp.c.
References SCIPsdpiGetSol().
EXTERN long int SCIPrelaxSdpGetSdpNode | ( | SCIP_RELAX * | relax | ) |
get the number of the SCIP-node to which the current SDP solution belongs
relax | SDP relaxator to get solution for |
Definition at line 1103 of file relax_sdp.c.
Referenced by SCIP_DECL_PROPEXEC().
EXTERN SCIP_Bool SCIPrelaxSdpSolvedOrig | ( | SCIP_RELAX * | relax | ) |
was the original problem solved for the last SDP-Node (or a penalty formulation) ?
relax | SDP relaxator to get solution for |
Definition at line 1114 of file relax_sdp.c.
References SCIPsdpiSolvedOrig().
Referenced by SCIP_DECL_PROPEXEC().
EXTERN int SCIPrelaxSdpGetNIterations | ( | SCIP_RELAX * | relax | ) |
returns total number of SDP iterations
relax | SDP relaxator to get the iterations for |
Definition at line 1131 of file relax_sdp.c.
Referenced by SCIP_DECL_DISPOUTPUT().
EXTERN int SCIPrelaxSdpGetNSdpCalls | ( | SCIP_RELAX * | relax | ) |
returns number of solved SDP relaxations
relax | SDP relaxator to get the number of calls for |
Definition at line 1142 of file relax_sdp.c.
Referenced by SCIP_DECL_DISPOUTPUT().