{"id":15893,"date":"2023-10-18T11:55:57","date_gmt":"2023-10-18T15:55:57","guid":{"rendered":"https:\/\/blogs.mathworks.com\/simulink\/?p=15893"},"modified":"2023-10-18T11:55:57","modified_gmt":"2023-10-18T15:55:57","slug":"accelerator-cache-and-rebuilds-everything-you-need-to-know","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/simulink\/2023\/10\/18\/accelerator-cache-and-rebuilds-everything-you-need-to-know\/","title":{"rendered":"Accelerator Cache and Rebuilds – Everything you need to know"},"content":{"rendered":"
In Simulink, the different simulation modes (accelerators) can save you a lot of time. There are, however, subtleties to what \u201ctime\u201d you can save, and how we can achieve those savings. In this post, I will explain most of the cases you can encounter, and hopefully shed light on what simulation modes and options best align with your needs. <\/span><\/div>
First, let me introduce the way I think about the main phases that take time when simulating a model involving any of the accelerator modes:<\/span><\/div>
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If you start from scratch, without any existing cache, Simulink will do all 3 of those phases. However once you simulate the model, a <\/span>Simulink Cache<\/span><\/a> file gets created and can be reused for subsequent simulations.<\/span><\/div>
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On the above timeline, what I spend the most time explaining is the multiple subtleties that can cause the Checksum Analysis and Accelerator Target Generation to happen or not. I will try to summarize that here. <\/span><\/div>
There are differences for the three accelerator targets:<\/span><\/div>