Your customer area

Please fill the following form to log on. Please be careful, number of attemps to connect is limited to 5.
If you forgot your password, click here.

Artelys Knitro - Nonlinear optimization solver

Frequently asked questions

This section has a selection of general issues encountered during the installation or the use of Artelys Knitro and our answers to help you. For specific help, please contact us.

Purchase and use

Q: What should I do to purchase Artelys Knitro?
A: Please contact Artelys Knitro sales team.

Q: Can I use all interfaces if I purchase the Artelys Knitro solver through a modeling language's website?
A: No. When Artelys Knitro is purchased through a modeling language vendor, Artelys Knitro can only be used through that particular modeling language or interface. To embed Artelys Knitro in a C/C++ or FORTRAN program, you must purchase the full Artelys Knitro libraries through Artelys.


Q: Why does get_machine_ID.exe say the machine ID could not be determined?
A: On Windows this may happen if your machine is not connected to a network. The machine ID includes an Ethernet address, but Windows does not make the address available unless the network connection is enabled. See the Ziena License Manager User's Manual for details.

Q: What should I do when I have difficulties installing Artelys Knitro?
A: Read sections Installation and Troubleshooting of the user manual. If you cannot resolve your problem, please contact Artelys Knitro support team (for users under maintenance only).

Tips & tricks

Q: What should I do to make Artelys Knitro solve my problem faster?
A: Read section Tips and Tricks of the user manual. If you cannot resolve your problem, please contact Artelys Knitro support team (for users under maintenance only).

Q: Where can I discuss with the Artelys Knitro community?
A: The Artelys Knitro forum is hosted by a Google group. You can refer to the Artelys Knitro community to discuss about Artelys Knitro, provide feedbacks, ask technical questions, etc. Anyone can view the discussions. To post a message you need to sign into Google, but Google accounts are free.

Technical references

Q: Which article should I mention if I want to add a reference to Artelys Knitro in my paper?
A: If you need to mention Artelys Knitro in a publication, please insert the following reference:

R. H. Byrd, J. Nocedal, and R. A. Waltz, "KNITRO: An Integrated Package for Nonlinear Optimization" in Large-Scale Nonlinear Optimization, G. di Pillo and M. Roma, eds, pp. 35-59 (2006), Springer-Verlag. 

Q: Where can I read more information about the algorithms implemented inside Artelys Knitro?
A: Read section Bibliography of the user manual.

Discussion groups

Artelys Knitro Forum: Help group for Artelys Knitro; ask technical questions, report experiences, suggest tips.

• Artelys Knitro Linkedin Group: Business group for Artelys Knitro; share your experience with other Artelys Knitro users and be kept informed of all the new developments.

Artelys Knitro support

Artelys provides worldwide technical support and assistance for Artelys Knitro.

More information