Initializing help system before first use

XPRSgetsolution

Purpose
Returns the incumbent solution during or after optimization with XPRSoptimize, XPRSmipoptimize, XPRSlpoptimize or XPRSnlpoptimize.
Topic area
Solution
Synopsis
int XPRS_CC XPRSgetsolution(XPRSprob prob, int *status, double x[], int first, int last);
Arguments
prob 
The current problem.
status 
Information about the solution returned.
x 
Double array of length last-first+1 where the value of the primal variables will be returned. May be NULL if not required.
first 
First column in the solution.
last 
Last column in the solution.
Example
See also examples addmipsol.c, ComplexUserFunctions.c, goalprog.c, repair.c, roundint.c, tableau.c, trimloss.c, tsp.c.
Further information
1. The function always returns data in the input space, even if the problem is currently in presolved state. Column indices should be in the range 0 to INPUTCOLS- 1.
2. The status will be set to XPRS_SOLAVAILABLE_NOTFOUND ( 0), XPRS_SOLAVAILABLE_OPTIMAL ( 1), or XPRS_SOLAVAILABLE_FEASIBLE ( 2).
3. During a deterministic MIP solve, the incumbent solution is only available once it has been deterministically communicated to the current MIP worker problem.
4. During an SLP solve, the incumbent solution is not necessarily feasible. It is generally the best solution seen so far in terms of feasibility and the objective function, depending on the values of the SLPFILTER and NLPMERITLAMBDA controls.
Related topics
XPRSoptimize, XPRSgetduals, XPRSgetslacks, XPRSgetredcosts.

Parent Topic Console and Library Functions

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