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 XPRS_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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