Originally posted by: prashanw

I am using the following code to query the best objective of the cplex solver using the python API . How do I also get the elapsed time for each specific data point? Because if I have elapsed time i can do a subtraction and get the time to solve. 

My intention is to plot the Objective vs elapsed time.

reference to code : https://www.ibm.com/developerworks/community/wikis/form/api/wiki/de368162-e90b-432c-a4e9-795cc51440dd/page/8eb84825-f653-4714-a85e-43e14e08136a/attachment/7411090d-db2b-431d-8243-5f4be8117586/media/BestPracticesUsingCPLEXPython3API.pdf

class MyCallback(cplex.callbacks.MIPInfoCallback):    
    
    def __call__(self):
        if self.has_incumbent():
            self.incobjval.append(self.get_incumbent_objective_value())
            self.bestobjval.append(self.get_best_objective_value())
   

Thanks!

You can use the get_time method which is inherited from the top-level Callback class.  See the documentation here.

For example:

class MyCallback(cplex.callbacks.MIPInfoCallback):    
    
    def __call__(self):
        if self.has_incumbent():
            self.incobjval.append(self.get_incumbent_objective_value())
            self.bestobjval.append(self.get_best_objective_value())
            self.times.append(self.get_time())

Originally posted by: prashanw

Thanks!..hmm I can't spot the "accept answer button"

Glad that helped.  When you start a topic, you have to select the "Mark this topic as a question" checkbox, in order to have an accept button.

Originally posted by: prashanw

done. Thanks!