Initializing help system before first use

XPRSsetobjintcontrol, XPRSsetobjintcontrol64

Purpose
Sets the value of an integer control parameter associated with an objective. These control values will only be applied when solving the given objective during multi-objective optimization.
Topic areas
Controls and Attributes, Multiobjective
Synopsis
int XPRS_CC XPRSsetobjintcontrol(XPRSprob prob, int objidx, int control, int value);
int XPRS_CC XPRSsetobjintcontrol64(XPRSprob prob, int objidx, int control, XPRSint64 value);
Arguments
prob 
The current problem.
objidx 
Index of the objective to modify.
control 
Control parameter whose value is to be modified. Can be any solver control, or one of:
XPRS_OBJECTIVE_PRIORITY 
set the priority of the given objective.
value 
Value to which the control parameter is to be set.
Example
The following sets the priority of the first objective to 1: 
XPRSsetobjintcontrol(prob, 0, XPRS_OBJECTIVE_PRIORITY, 1);
The following turns off presolve for the second objective only: 
XPRSsetobjintcontrol(prob, 1, XPRS_PRESOLVE, 0);
See also example goalprog.c.
Further information
1. When MAXNODE, MAXMIPSOL or LPITERLIMIT is set on an objective, then when the limit is reached the solver will stop the current solve but will continue with solving the next objective. This is in contrast to the behaviour when these controls are set on the problem with XPRSsetintcontrol, where the overall optimization will be terminated as soon as a limit is reached.
2. This function cannot be called while the current problem is being solved or when it is in an interrupted state. Use XPRSpostsolve to restore the problem to a non-solving state.
Related topics
XPRSgetobjintcontrol, XPRSgetobjdblcontrol, XPRSsetobjdblcontrol.

Parent Topic Console and Library Functions

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