Questions when using CBC

[CruiseSun1998]

Dear Professor:

Recently I am using Yalmip together with CBC (in the OPTI Toolbox) to solve MIP problems. And I have a question:

============================================================
*** MAXIMUM TIME REACHED ***
Objective Value: -1.09833e+07
Gap: 538844 (4.91%)
Searched: 11761 nodes [214487 LP iterations]

---

yalmipversion: '20210331'
matlabversion: '9.5.0.1178774 (R2018b) Update 5'
   yalmiptime: 0.1350
   solvertime: 999.8200
         info: 'Maximum iterations or time limit exceeded (CBC)'
      problem: 3

============================================================

I failed to solve an MILP problem due to the maximum time.

However, I didn't find an option to change the parameter "maximum time" in ops.cbc .

I wonder how to change the parameters like "maximum time" and "maximum nodes" for CBC.

Best regards,
Cruise

[johanlofberg]

Opti has some mix of common and solver specific, so I think you have to do something like below to add some some missing options

ops = sdpsettings('solver','cbc');
ops.cbc.maxtime = 1;

YALMIP creates the options via cbcset, and some are not added by that constructor. You can look in opti_cbc to reverse engineer some stuff