Selected Examples

Batch Arrivals I

The model in Figure 9.7 shows one way to represent batch arrivals. The compound component labeled "Arrival Process" has a sampler with the batch inter-arrival time distribution set. When a transaction arrives in this process, it traverses to the Trigger labeled "Reset" which resets the Sampler labeled "Batch Source."

Figure 9.7: Batch Arrivals

The transaction then goes to the Trigger labeled "Start" which starts the Batch Source Sampler. The Batch Source Sampler has a deterministic inter-arrival time distribution with parameter 0 and capacity c, the batch size. Because of this inter-arrival time distribution, when the Batch Source Sampler is started by the Start Trigger, the Batch Source generates c transactions at the current simulation time and sends them to the queue. This is the batch arrival of transactions.

Notice the LinePlot labeled "Number in the Queue.". The periodic discrete jumps in queue length show a batch arrival.

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