Configuring and Building a New Model

Learn how to configure all relevant parameters of your AI model and how to build it.

Prerequisites: You have created a project and added a minimum of four simulations in the Ansys SimAI platform as described in Creating a Project and Adding Data.
Tip: Model configuration is auto saved in your browser. Any edit alters the definition of your upcoming build request. Click Revert if necessary to revert the model configuration to its last available version, that is, the last configuration used to build a model in this project.
  1. From your project view, click Build new model.
  2. In the Reference sample section, verify that the dataset selected (to extract your variables) is valid.

    If you want a different training data point to be used as reference sample by your model, click its info button and click Set as project reference sample. For more information, see Reference Sample.

  3. In the Variables section:
    1. Click Select variables to select the variables relevant for your study.
    2. Click Create coefficient to create a scalar value (for example: Drag, Lift) that will be computed as a postprocessing after a prediction.
      For more information, see Global Coefficients Editor.
    3. Name the global coefficient in the Name field and click Create Coefficient.
  4. Click Define domain of analysis to determine the size and position of the domain (bounding box) used for AI learning and model predictions:
    • Use the Quick setup to automatically get the domain extends based on all the geometries in the project dataset by clicking Apply quick setup and Validate.
    • Use Custom setup to manually define the domain extends and click Validate.
      Tip: The relative positions (either to the design edge or the design center) allow the Ansys SimAI platform to adapt the training and prediction bounding box to the geometries' position variation (for translation).

      Make sure the relative settings generate a DoA that is consistently positioned for all geometrical variations of the designs.

  5. In the Build Duration section, choose the right accuracy for your analysis:
    • Select Debug if you are working on validating that your AI model is functional.
    • Select Production to build an accurate AI model for prediction and set your build duration ranging from less than 24 hours to 5 days depending on the precision you want to achieve.
      Note: For most cases, maximum precision should be reached with a build duration of less than 2 days.
  6. Click Build Model.
The AI training is started. You will receive an email when your AI model is ready.
Once your AI model built in production, if you need to build another model with the same configurations, use the Build on top feature. It reduces the build duration. For more information, see Building on Top of Previous Model (Deprecated).