Model 7c - Multiple Parallel Activity

Goals of this lesson

• Learn how to set up the prerequisites for a parallel activity

How-to

In Model 7c we will introduce you to the multiple parallel activity. This kind of activity is being executed x times simultaneously. The number of parallel instances is determined by an expression which must evaluate to an integer.

Approach

• We again initialize a variable called x with a value of 4 in the first activity
• At the second activity we select the item Parallel from the drop-down-box Multiple Instances
• We now enter the above defined variable's name (x) into the expression field of the Number of Parallel Instances property under Must-Have Simulation Parameters
• Note: You can also enter an expression like Result=(x+4); (which will result in 8 parallel instances) or just enter a number

Explanation

The first activity defines the variable x with the value 4. We then use x to determine the number of parallel instances of the second (parallel) activity. This means that the second activity will be executed 4 times simultaneously.