Having appended the constraints and objective components associated with query execution to the application-tier BIP, we make a connection between the two by encoding the dependency between each function that executes a query and the possible root operators for the associated query plan.
We first discuss that, in adapting the application execution to the varying CPU availability, one needs to consider the number of CPUs to use, the number of application threads to accommodate and the voltage/frequency levels to employ (if the CMP has this capability).
The SFO uses application and network information to adaptively prefetch and cache needed data in parallel with the execution of the application to mitigate the impact of the network.
The helper thread runs parallel to the application execution threads and tries to determine the ideal number of CPUs, threads and voltage/frequency levels to employ at any given point in execution.
PCL provides simple high-level syntax for local and remote adaptation operations, local and remote performance monitoring (and aggregation), and for performing adaptations synchronously or asynchronously with respect to the execution of the application process initiating the adaptation.
However, during the execution of the application, due to variability and randomness in biochemical reactions, operations may finish earlier than their wcets, resulting in unexploited slack in the schedule.
Let App V,E) represent a model of the application, where forall v ∈ V, v corresponds to a function execution in the application.
The node emulators with network models can be divided into two different sets: ISSs for special microcontrollers or processors, and emulators designed to emulate the execution of the application code of an operating system (e.g., TinyOS [36], SOS [37], and Contiki [38]).
To manage the different analytical tasks performed through BLAST, virulence factor database (VFDB) BLAST, Pairwise Genome Comparison (PGC) and Pathogenomics Profiling Tool (PathoProT), a job scheduling system was used to manage job execution and the application server utilization (39).
Finally, the notion of gradual improvement of quality is extended to sensing and plan execution and the application of the model is demonstrated through a simulated robot navigation system.
