Dear All,

I am running several scenarios by using cplex (docplex) library, for example to change the number of decision variables, to change the number in parameters, etc. In this case, I would like to ask you: is there any python coding to measure the computation time of cplex (docplex) library? If yes, could anyone share me, please? Thank you in advance.

------------------------------
Nicholas Nicholas
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#DecisionOptimization

Dear Nicholas,

When using docplex.mp models, the time spent to solve the problem is given in the object returned by the 'solve_details' method of the solved model. So you can write:

if mdl.solve():
  print('time', mdl.solve_details.time)

I hope this helps.

Cheers,

------------------------------
Renaud Dumeur
------------------------------

Dear @Renaud Dumeur,

Thank you for your recommendation.
When I included the following code:
if mdl.solve():
  print('time', mdl.solve_details.time)

the result is time 0.0
I guess it might be because of the number of decimal digit. Do you know, by any chance, how to increase the decimal digit for CPLEX python?

Thank you!​

------------------------------
Nicholas Nicholas
------------------------------

Original Message:
Sent: Tue August 02, 2022 09:47 AM
From: Renaud Dumeur
Subject: Python Coding for measuring the computation time of cplex (docplex)

Dear Nicholas,

When using docplex.mp models, the time spent to solve the problem is given in the object returned by the 'solve_details' method of the solved model. So you can write:

if mdl.solve():
  print('time', mdl.solve_details.time)

I hope this helps.

Cheers,

------------------------------
Renaud Dumeur
------------------------------

That's odd: I've never seen this value as a 0.0. (there is no notion of decimal digit in the cplex python layer)
In the CPLEX log, is the Total (root+branch&cut) also 0?

------------------------------
Vincent Beraudier
------------------------------

Original Message:
Sent: Thu August 18, 2022 01:56 AM
From: Nicholas Nicholas
Subject: Python Coding for measuring the computation time of cplex (docplex)

Dear @Renaud Dumeur,

Thank you for your recommendation.
When I included the following code:
if mdl.solve():
  print('time', mdl.solve_details.time)

the result is time 0.0
I guess it might be because of the number of decimal digit. Do you know, by any chance, how to increase the decimal digit for CPLEX python?

Thank you!​

------------------------------
Nicholas Nicholas
------------------------------


Original Message:
Sent: Tue August 02, 2022 09:47 AM
From: Renaud Dumeur
Subject: Python Coding for measuring the computation time of cplex (docplex)

Dear Nicholas,

When using docplex.mp models, the time spent to solve the problem is given in the object returned by the 'solve_details' method of the solved model. So you can write:

if mdl.solve():
  print('time', mdl.solve_details.time)

I hope this helps.

Cheers,

------------------------------
Renaud Dumeur