Adaptation Architecture Ensembles Sample Clauses

Adaptation Architecture Ensembles. ‌ The expectation is that the number of available computation nodes, as well as the number of Monitors, changes dynamically. Therefore, the communication among the components exploits the concept of emergent component ensembles. The architecture involves the following ensembles (Figure 2): Planner and Device(s). Each Planner is a coordinator of an ensemble that distributes MonitorDefs (including the performance dependency model) of application components to Devices representing currently available computation nodes (including the one the Planner is running on). The Planner is able to constraint which MonitorDefs should be distributed to which Devices (effectively constraining the potential migration destinations for a particular application component). A simplified example of a definition of this ensemble is in Listing 5. It specifies that only reachable devices within 2 network hops are to be considered and that this check is to be performed every 15 seconds. The distribution of the MonitorDefs is performed by adding the MonitorDef to the target components knowledge. Listing 5 Example of an ensemble definition.