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Background

When setting up AMI graphs one of the more complex issues is gathering results from the multiple nodes/cores that are receiving the events.  This gather is done at a "heartbeat" rate that uses the event timestamps do determine when a gather operation should happen.

Before describing how to accumulate events in AMI, it is important to understand the architecture of AMI, which consists of workers, local collectors, a global collector, a manager, and a client processes that run on different compute nodes.

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