Originally posted by: keljxjtu

how to turn off the parallel mode for cplex 12.3?
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Originally posted by: SystemAdmin

> how to turn off the parallel mode for cplex 12.3?

I am not sure of what you mean by 'turn off'. The parallel mode can either be deterministic or opportunistic. Please go through the following documentation link to know more about this parameter:

http://publib.boulder.ibm.com/infocenter/cosinfoc/v12r3/index.jsp?topic=%2Filog.odms.cplex.help%2FContent%2FOptimization%2FDocumentation%2FOptimization_Studio%2F_pubskel%2Fps_refparameterscplex2305.html

How are you using CPLEX- via the interactive optimizer or via the APIs (C/C++/Java/.NET etc)? If you can let us know more about your usage, we may be able to direct you better towards how you could change the setting.
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Originally posted by: SystemAdmin

If you meant running the model with a single thread (as opposed to multiple threads), then you will need to change the 'Threads' parameter to 1. In the interactive optimizer this can be done by:

CPLEX> set threads 1

If you are calling CPLEX via the APIs then you will need to use the corresponding APIs 'setParam' method to do the same. Say, if you are using the Java API, an example to set parameters is shown here:
http://publib.boulder.ibm.com/infocenter/cosinfoc/v12r3/index.jsp?topic=%2Filog.odms.cplex.help%2FContent%2FOptimization%2FDocumentation%2FOptimization_Studio%2F_pubskel%2Fps_usrmancplex1532.html

More about the 'Threads' parameter can be found in the following documentation link:
http://publib.boulder.ibm.com/infocenter/cosinfoc/v12r3/index.jsp?topic=%2Filog.odms.cplex.help%2FContent%2FOptimization%2FDocumentation%2FOptimization_Studio%2F_pubskel%2Fps_refparameterscplex2355.html
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Originally posted by: keljxjtu

Thank you very much. I got it.
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