Originally posted by: SystemAdmin

[hernan said:]

Hi everybody!
When CPXmipopt finishes, I want to get the last gap information that appears in the log file, so if CPXmipopt execution finishes caused by Time Limit, I want to know the %gap. Is it possible using CPLEX Callable Library or I must parse the log file??
Thanks!

#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[achterberg said:]

Just use CPXgetbestobjval() to get the dual bound ('db') and CPXgetobjval() to get the primal bound ('pb'). Then calculate |pb - db|/|pb|, of course checking for pb = 0 before calculating the ratio.

#CPLEXOptimizers
#DecisionOptimization