IBM ILOG CPLEX Optimization Studio Reviews

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Real User
Assistant Professor
Nov 16 2017

What is most valuable?

I would say its extensibility, and the ability to do both high-level modeling and also go all the way to the engine extensions.

How has it helped my organization?

Whenever you do optimization, having a good CP solver or integer programming solver is a necessity. So CPLEX is a tool that I cannot do without.

What needs improvement?

What I would love to see is better accessibility of the engine extensions. Currently you can do really low-level stuff, and it's great, but you can only do it in C or C++. Whereas, sometimes the application requires another programming... more»
Real User
Graduate Research Assistant at University Of Tennessee Space Institute
Nov 15 2017

What is most valuable?

I think that it is user-friendly, compared to other methods. I also like the optimization studio in Windows. It is really awesome for someone who wants to just start using CPLEX, especially the OPL for writing the model. The language is really, really simple and intuitive and it is very easy to read and write. it's also easy to write control flows in CPLEX.

What needs improvement?

The infeasibility checks should be easier to set up. Currently, you have to name your constraints. It is really hard to find the infeasible constraints. If they could add that to the features, it would be great. It would also be awesome if they had a short tutorial that tells someone like me, who is not a new user, about the different features that I might not... more»

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Real User
Phd Candidate
Nov 13 2017

What is most valuable?

The ability to actually incorporate some stuff that you have developed within CPLEX's big general framework. It is a very good tool. It's very user-friendly with its language, OPL. It can be used by someone who has no idea how to code, while also being very useful for someone who is very advanced in programming and has a lot of knowledge of the matter, of the... more»

What needs improvement?

One of the new things in CPLEX is the new benders, the composition that does it automatically. One of the things I realized while testing it is that when it does it at the root node of the branch and bound tree, it doesn't leave with the LP relaxation. It often stops, terminates, before it stops adding cuts before. And it makes for a very weak stopping criteria... more»
Real User
Research Assistant
Nov 20 2017

What is most valuable?

I really like that I can see the results properly. I can click on the results and then look at them to tell how the results are coming out.

What needs improvement?

In future versions, I would like to see them include different kinds of optimization problem techniques. The performance could also be faster. One more thing that I would like to see added is the ability to find out how much time other solvers take. I know that CPLEX is one of the solvers, but it would be very helpful to be able to figure out what I need in... more»
Real User
Post Doctorate Research Fellow at a healthcare company with 10,001+ employees
Nov 16 2017

How has it helped my organization?

It helps me a lot. CPLEX is a tool that can kind of visualize your prediction and help you understand the problem better. For example, for every SOS you can just format a model, which could be an inner model or mixed integer model, that can be solved by CPLEX. You can then see the results to verify your idea, or you can modify your idea.

What needs improvement?

I guess I would like to see it become faster and more user-friendly. I think CPLEX is very flexible for different languages so maybe they can provide more detailed documentation on how to format a model in CPLEX, and how to output the solutions. It could provide some examples, some specific standard examples, which I think would be very helpful for beginners. I... more»
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What is IBM ILOG CPLEX Optimization Studio?

IBM ILOG CPLEX Optimization Studio (COS) is an enterprise analytical decision support toolkit. It enables rapid development and deployment of decision optimization models using mathematical and constraint programming. COS combines a fully featured integrated development environment (IDE) that supports Optimization Programming Language (OPL) and the high-performance CPLEX and CP Optimizer solvers. COS enables you to optimize your business decisions, develop and deploy optimization models quickly, and create real-world applications that can significantly improve business outcomes.

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IBM ILOG CPLEX
IBM ILOG CPLEX Optimization Studio customers

GreenCom Networks, FleetPride, West Point


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