Initializing help system before first use

STOPSTATUS

Description
Status of the optimization process.
Type
Integer
Topic area
Solution Process
Note
Possible values are:

Value Description
XPRS_STOP_NONE no interruption - the solve completed normally
XPRS_STOP_TIMELIMIT time limit hit
XPRS_STOP_WORKLIMIT work limit hit
XPRS_STOP_CTRLC user hit control C or sent a corresponding signal
XPRS_STOP_NODELIMIT node limit hit in branch-and-bound
XPRS_STOP_ITERLIMIT LP iteration limit hit
XPRS_STOP_MIPGAP MIP gap is sufficiently small
XPRS_STOP_SOLLIMIT solution limit hit
XPRS_STOP_MEMORYERROR insufficient memory led to error in memory allocation
XPRS_STOP_USER user interrupt
XPRS_STOP_SOLVECOMPLETE MIP solve completed without fully exploring the tree
XPRS_STOP_LICENSELOST license has been lost, all flexible licenses are in use
XPRS_STOP_NUMERICALERROR solver encountered numerical errors

Note
XPRS_STOP_SOLVECOMPLETE can occur when a disconnected component is found to be infeasible, proving the whole problem to be infeasible without finishing the branch and bound search.
Note
XPRS_STOP_NUMERICALERROR can occur during a multi-objective solve, when the first objective solves to optimality, but when solving a subsequent objective the problem is found to be infeasible due to numerical issues associated caused by fixing the earlier objectives.
Set by routines
XPRSlpoptimize ( LPOPTIMIZE), XPRSmipoptimize ( MIPOPTIMIZE).
Category
Attribute

Parent Topic Problem Attributes

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