This paper presents a novel theoretical model for representing parallel relational query processing. It is based on a hierarchical approach. First, a scheme graph, called DPL graph, describes all possible execution dependencies between operators, including communication and run-time control mechanisms. Second, a high-level Petri net is used for modeling the data-and control ow. Our model provid...

This paper describes a new parallel program tuning framework, with a new approach for tuning. The application exposes tuning parameters while an adaptive runtime system tunes the values of the parameters as the program executes. The parameters are allowed to vary throughout the duration of a run of a program. This provides two benefits over using a static set of parameters for each program run....

In the last few years, Run-to-Run (R2R) control techniques have been developed and used to control various processes in industries. These techniques combine response surface, statistical process control, and feedback control techniques. The R2R controller consists of a linear regression model that relates input variables to output variables using Exponentially Weighted Moving Average (EWMA). In...