Gurobi license: Problems with token server

Lukas Weimann

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Jan 20, 2021, 10:27:04 AM1/20/21

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Hello,

I've been using yalmip for Matlab with cplex and gurobi to solve MILPs on private machines since 3 years now. (Thanks a lot for this invaluable toolbox you provided!)

Recently, I got access to a virtual machine on my university's server which uses a token server for the gurobi license.

As long as I run the optimization with default settings, everything works fine. However, as soon as I specify even a single parameter specific to gurobi I get the following error message: "Gurobi error 10003: Mixing different types of licence parameters is not allowed"

After some debugging, it seems to me that the default gurobi settings generated when specifying any gurobi parameter (function setup_gurobi_options in sdpsettings.m) overwrites the token server information. I tried to specify the token server property manually but it didn't solve the problem - probably because I didn't specify the port and password (because I don't know it).

I managed to solve it for now in a rather nasty way by commenting all server-related properties in setup_gurobi_options (sdpsettings.m, lines 805-831), but I think there should be a more elegant way.

Please let me know if there is any obvious mistake from my side; I never used a token server before and didn't find any specific information on setting up yalmip+gurobi with a token server.

If it is a bug however, I'd be happy to provide any additional information that might be helpful.

Version info: Gurobi 9.1.1, Matlab 2018a, latest distribution of yalmip (as far as I am aware - our IT guy did the installation)

Best wishes,

Lukas

Johan Löfberg

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Jan 20, 2021, 10:38:13 AM1/20/21

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Hmm, ok. Not familiar with the setup, but good to know. Not sure what can be done and what you do sounds as good as you can do right now

n ansari

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Apr 15, 2021, 8:09:20 AM4/15/21

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Same problem happened to me. In your /path/to/YALMIP/extras/sdpsettings.m (lines 816-842 in latest YALMIP version).

Please comment out lines:

gurobi.WorkerPassword = '';

gurobi.WorkerPool = '';

gurobi.CloudAccessID = '';

gurobi.CloudHost = '';

gurobi.CloudSecretKey = '';

gurobi.CloudPool = '';

gurobi.ComputeServer = '';

gurobi.ServerPassword = '';

gurobi.ServerTimeout = 60;

gurobi.CSPriority = 0;

gurobi.CSQueueTimeout = -1;

gurobi.CSRouter = '';

gurobi.CSGroup = '';

gurobi.CSTLSInsecure = 0;

gurobi.CSIdleTimeout = -1;

gurobi.JobID = '';

gurobi.CSAPIAccessID = '';

gurobi.CSAPISecret = '';

gurobi.CSAppName = '';

gurobi.CSAuthToken = '';

gurobi.CSBatchMode = 0;

gurobi.CSClientLog = 0;

gurobi.CSManager = '';

% gurobi.UserName = '';

gurobi.ServerPassword = '';

gurobi.TokenServer = '';

Behnam Akbari

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Mar 26, 2022, 11:53:20 AM3/26/22

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The same issue here and the same solution as indicated above.

Johan Löfberg

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Mar 26, 2022, 12:06:54 PM3/26/22

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fixed in develop already

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