Configuring the Random Points Sampling Method

You can create an approximation using the Random Points sampling method, where Isight generates the required number of points for the approximation.

  1. From the Sampling Options screen or the Error Analysis Sampling Options screen, select the number of points for the approximation:

    • Specify a number of points in the sample points text box. This number must be at or above the minimum required number of points specified in the text message above the entry box.

    • Specify a time limit (in seconds, minutes, or hours) using the As many points as possible in option. Isight will keep executing to find points for the specified time duration.

      Note: If less than the minimum required number of points is executed, Isight will continue executing sampling points until the requirement is met.

  2. Select Use a fixed random seed to specify a seed value to use for the random number generator when determining the set of sample points to be executed. This option allows you to reproduce the approximation with the same set of points later, if desired.

  3. Select Execute design points in parallel if you want to execute your initialization points in parallel. You can use this option only if you are using a multiple CPU system or if you are connected to a SIMULIA Execution Engine.

  4. Click Next.

    If you are using Random Points as the sampling method, the Sampling Range screen appears. If you are using Random Points as the error analysis, the Approximation Improvement screen appears.

  5. If you are using Random Points as the sampling method, you can configure how you want to define the sampling region:

    • Absolute Values. This option defines the region by using absolute bounds for each inputs parameter. You need to specify the Lower and Upper values for each parameter in the corresponding columns.

    • Relative to Baseline. This option defines the region by applying relative move limits to the baseline values in both directions. You need to specify the baseline, move limit percentage, and minimum move limit for each parameter in the corresponding columns.