To load an existing model saved as an MPH file use the function mphopen. To load the model with the name <filename> enter

where <filename> is a string. This creates a model object Model on the COMSOL server that is accessible using the MATLAB variable model.

that will load the model with the given filename and use the variable name model for accessing the model later. Any existing variable model will be overwritten without warning.

Once the model is loaded, the filename and its associated model object tag are displayed in the COMSOL server window.

If there is already a model object Model in the COMSOL server, mphopen overrides the existing model object unless the model is also open in a COMSOL Multiphysics Client. In the later case, an index number is appended to the new model object name, for instance Model1.

If you want to manually specify the model object in the COMSOL server. use the command

where <ModelTag> is a string defining the tag that defines the loaded model in the COMSOL server.

When using the function mphopen, the model history is automatically disabled to prevent large history information when running a model in a loop. To turn model history on, use the function mphopen:

If you do not want to update the recent opened file list with the model you are about to open, use the -nostore flag with the function mphopen as in the command below:

If the model MPH file is protected using a password, use mphload as in the command below:

where <password> is a string defining the password protecting the file.

For each selected files, the model information is available in the File Info section.

Click the Recent button to get the list of the recent opened file. Click the Search button to search for a file using file pattern. Click the Browse button to browse the directory where to get filename list.

To open the GUI with the list of files in a specific directory (<dirpath>), enter the command:

This load the model in the COMSOL Multiphysics server and create the link model in MATLAB workspace.

Use the function mphsave to save the model object linked to the MATLAB object model:

where <filename> is a string. If the filename specified <filename> does not provide a path, the file is saved relative to the current MATLAB path. The file extension determines the format to use (*.mph, *.m, *.java, or *.vba).

To save the model as a copy set the property copy to on as in the line below:

When saving a COMSOL files (MPH files) you can choose the file to be optimized for speed (using uncompressed files that are faster to save), or to be optimized for file size (using compressed files). To do so set the property optimize to speed, or size, respectively, as in the command below:

To save a clean model — that is, one without built, computed, and plotted data — set the property excludedata to on:

To use a MATLAB figure as model thumbnail run mphsave including the property thumbnail:

where fighandle is the handle of the MATLAB figure to use as thumbnail.

Before saving your model, you may want to include a model thumbnail to quickly identify your model in your own Application Library or when using mphopen. To set the model thumbnail enter the command:

where <filename> is the image filename.