Subramanian Ramasamy
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Activity overview
Latest activity by Subramanian Ramasamy-
Subramanian Ramasamy commented,
Hi, Thank you for providing me these links. It really gave me an insight. And as per the documentation, my model has large matrix and objective coefficient ranges. It exceeds more than 10^9 (10^14 ...
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Subramanian Ramasamy commented,
Hi, Thank you for giving really a good insight. Now I am able to understand how indicator constraint should be formulated through Gurobi. Although, I have a question / minor issue in my model. Whe...
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Subramanian Ramasamy commented,
Hi, Thank you for your reply. Below here is the excel input data that I use. Kindly use this to reproduce the issue. You can find the code example above in the first message of this issue. I am una...
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Subramanian Ramasamy commented,
Hi, I tried this way that you mentioned in the previous message. if m.status == GRB.INFEASIBLE: var = m.getVars() lbpen = [1.0]*m.numVars ubpen = [10.0]*m.numVars constr = [] for i ...
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Subramanian Ramasamy commented,
Hi Mr. Najman, I tried finding out the cause of infeasibility as described in that article through model.computeIIS() method and it seems that there is one constraint that is getting violated. But ...
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Subramanian Ramasamy created a post,
Adding indicator constraints giving 'model infeasible solution' output
AnsweredHello Everyone, I am a new user of Gurobi and I am getting used to modeling in it. Right now I have a multi-trip (reloads up to vehicle's capacity from the depot whenever the vehicle needs to) capa...
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Subramanian Ramasamy commented,
Hi, Thank you for your input. I will look into these options. I could understand how indicator constraints would work. I guess I would need indicator constraints for my problem (as I need to implem...
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Subramanian Ramasamy created a post,
How to implement constraint in which nodes are visited optionally?
AnsweredHello Everyone, I am a newbie to Gurobi python and I am formulating a CVRP problem. The normal CVRP constraints include satisfying flow constraints, capacity constraints so far. Apart from these co...