Decision Optimization

Decision Optimization

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What exactly does a "tick" measure

  • 1.  What exactly does a "tick" measure

    Posted 02/21/19 09:26 AM

    Originally posted by: PetBe


    Hi all,

     

    Next to the CPLEX time there is also information about the number of "ticks" needed. I read the documentation from IBM (https://www.ibm.com/support/knowledgecenter/SSSA5P_12.6.3/ilog.odms.cplex.help/CPLEX/Parameters/topics/DetTiLim.html) but still I cannot estimate what is basically counted when using ticks. It is surely more than a FLOP. But what amount of work constitutes a "tick"?

     

    I'd appreciate every answer. Thanks in advance. 


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  • 2.  Re: What exactly does a "tick" measure

    Posted 02/21/19 09:56 AM

    You can take a look at this paper: http://people.csail.mit.edu/mareko/asplos073-olszewski.pdf

    CPLEX's ideas and notion of a tick is based on this. As opposed to reading hardware specific performance counters, CPLEX uses a hardware independent abstraction.


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