{"id":3863,"date":"2015-01-16T14:37:46","date_gmt":"2015-01-16T19:37:46","guid":{"rendered":"https:\/\/blogs.mathworks.com\/seth\/?p=3863"},"modified":"2019-02-01T09:48:30","modified_gmt":"2019-02-01T14:48:30","slug":"controlling-the-location-of-the-generated-code-and-temporary-files","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/simulink\/2015\/01\/16\/controlling-the-location-of-the-generated-code-and-temporary-files\/","title":{"rendered":"Controlling the Location of the Generated Code and Temporary files"},"content":{"rendered":"

Simulink often needs to generate files to simulate a model. An example of this is the model reference simulation target<\/a>. Today I will describe a few option to control where those files are created.<\/p>\r\n\r\n

Simulation Target<\/strong><\/p>\r\n\r\n

If you click play in the following model:<\/p>\r\n\r\n

\"Example<\/p>\r\n\r\n

You will notice that a folder named slprj<\/tt> with a lot of code and 4 MEX-files<\/a> will be created:<\/p>\r\n\r\n

\"Example<\/p>\r\n\r\n\r\n

Simulink Preferences<\/strong><\/p>\r\n\r\n

If you do not want the slprj<\/tt> and MEX-files to be generated in your current directory, it is possible to go in the Simulink Preferences<\/a> and specify a Simulation Cache Folder<\/a> and a Code Generation Folder<\/a> to be used instead of the local directory.<\/p>\r\n\r\n

\"Simulink<\/p>\r\n\r\n

Overriding the Simulink Preferences<\/strong><\/p>\r\n\r\n

Now, let's say I need to often switch between different projects, and each of those projects need to use different folders for code generation. In that case, it is possible to use Simulink.fileGenControl<\/tt><\/a>. For example, if I include Simulink Project<\/a> in my workflow, the startup shortcut<\/a> for my project could look like:<\/p>\r\n\r\n

project = simulinkproject;\r\nprojectRoot = project.RootFolder;\r\n\r\nmyCacheFolder = fullfile(projectRoot, 'work'<\/span>);\r\nmyCodeFolder = fullfile(projectRoot, 'code'<\/span>);\r\n\r\nSimulink.fileGenControl('set'<\/span>,...<\/span>\r\n    'CacheFolder'<\/span>, myCacheFolder,...<\/span>\r\n    'CodeGenFolder'<\/span>, myCodeFolder,...<\/span>\r\n    'createDir'<\/span>, true)\r\n<\/pre>\r\n\r\n
That way, all the code and MEX-files generated by the model will go in those folders and the current directory will remain clean.<\/p>\r\n\r\n
Once you are done working on this project, you can restore the values stored in the Simulink Preferences using this line:<\/p>\r\n\r\n
Simulink.fileGenControl('reset'<\/span>)\r\n<\/pre>\r\n\r\n
Don't Clean Up: Faster Initialization<\/strong><\/p>\r\n\r\n
Simulink checks the cached files at initialization to make sure they are up to date and match the model. This prevents re-generating files, and results in faster initialization.  If you regularly work with the same models, keeping these derived files around can help you save time when switching between projects.<\/p>\r\n\r\n
Now it's your turn<\/strong><\/p>\r\n\r\n
Let us know how you use this feature by leaving a comment here<\/a><\/p>","protected":false},"excerpt":{"rendered":"
<\/div>
Simulink often needs to generate files to simulate a model.  An example of this is the model reference simulation target. Today I will describe a few option to control where those files are... read more >><\/a><\/p>","protected":false},"author":41,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[21,33],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/posts\/3863"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/users\/41"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/comments?post=3863"}],"version-history":[{"count":20,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/posts\/3863\/revisions"}],"predecessor-version":[{"id":8570,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/posts\/3863\/revisions\/8570"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/media?parent=3863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/categories?post=3863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/simulink\/wp-json\/wp\/v2\/tags?post=3863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}