Is it possible to dynamically optimize capacity of server in SimEvents?

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Vinay Reddy 2018-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/389379-is-it-possible-to-dynamically-optimize-capacity-of-server-in-simevents

评论： Vinay Reddy 2018-3-24

Is it possible to dynamically optimize(not change) capacity of a server in SimEvents? I know we can do discrete-event optimization in Sim Events but is it possible to know the optimal capacity of a server for each time period i.e., I can increase/decrease the capacity in any period

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Answer 1

Mo Zhao 2018-3-20

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https://ww2.mathworks.cn/matlabcentral/answers/389379-is-it-possible-to-dynamically-optimize-capacity-of-server-in-simevents#answer_310964

编辑：Mo Zhao 2018-3-20

Could you find the answer in here?

https://www.mathworks.com/matlabcentral/answers/334632-it-is-possible-to-change-the-capacity-of-an-entity-server-dynamically

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Vinay Reddy 2018-3-21

编辑：Vinay Reddy 2018-3-21

I saw this answer before but my question is more focused on the optimization part. In discrete-event optimization model we can find number of servers required to minimize certain cost function. But the problem is that solution is constant for all the time periods. If there is a flexibility to change number of servers in each period we can minimize cost function even more. This may not be required for a uniform random demand, but if we know the demand function exactly(ex. demand increases till half the time periods reaches a maximum and decreases to become zero in the last period) optimizing for each period servers makes a lot of sense. So my question is, how to create a SimEvent optimization model which gives a solution(number of servers) in each period. Just to give more context to the problem, please refer the 57th minute of the video(https://www.mathworks.com/videos/modelling-and-analysis-of-discrete-event-systems-96480.html) So, the answer you posted doesn't address my problem but I greatly appreciate your response.

Amruth Dakshinamurthy 2018-3-21

From your comment I see that you would like to the change the number of servers in each period (each step in simulation?). Currently, this is not possible with Entity Server as the parameter 'Capacity' cannot be tuned during simulation.

To answer your query, you can have a number of Entity Servers with Capacity being 1 and an Entity Gate on the input side of each Single Server. You can then control the number of servers available by enabling those Entity Gates based on the number of Entity Servers you need during each time period. This might put a graphical limitation if number of Entity Servers is large.

Vinay Reddy 2018-3-24