Initializing help system before first use

# OPTIMIZETYPEUSED

Description | The type of solver used in the last call to XPRSoptimize, XPRSmipoptimize, XPRSlpoptimize or XPRSnlpoptimize.
Type | Integer
Topic area | Solution Process
Values |
-1 | No solver was selected yet ( XPRS_OPTIMIZETYPE_NONE). This can occur if the solve was interrupted while determining the problem type.
0 | The LP solver was selected ( XPRS_OPTIMIZETYPE_LP). The LP algorithm used by default is controlled by DEFAULTALG.
1 | The MIP solver was selected ( XPRS_OPTIMIZETYPE_MIP).
2 | A local nonlinear solver was selected ( XPRS_OPTIMIZETYPE_LOCAL). See LOCALSOLVERSELECTED for which local solver was selected.
3 | The global nonlinear solver was selected ( XPRS_OPTIMIZETYPE_GLOBAL).
Note | This attribute can be used to determine which type of solver was automatically selected when XPRSoptimize was called. If the global solver is enabled, this attribute can be used to determine whether a quadratic problem was found to be convex, since the global solver will only be selected if the problem is found to be non-convex.
Set by routines | XPRSoptimize, XPRSmipoptimize, XPRSlpoptimize, XPRSnlpoptimize.
Category | Attribute

Parent Topic Problem Attributes

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