Research Article

Modelling and Automated Implementation of Optimal Power Saving Strategies in Coarse-Grained Reconfigurable Architectures

Table 1

Parameter classification. Table reports for each considered parameter, typology (architectural, functional, and technological), description, and extraction method.

Parameter Arch.Funct.Tech.Description Extraction

xNumber of sequential cells in the considered LR Provided by the synthesis reports

xNumber of estimated isolation cells in the design Obtained by counting the number of wires that connect the different LR among each other in the dataflow model

xActivation time Found by means of a high-level (directly on the dataflow) profiling of the targeted scenario
xOff time

xNumber of retention cells in the design Strictly related to the LR functionality and is chosen by the designer

xPower estimation of retention and isolation cells Determined by the selected synthesis process and can be obtained without any implementation run
x
x

xPower estimation of PG and CG controller when the LR is on or off It requires being characterized, according to the target technology, with dedicated synthesis trials
x
x
x

xxxPower consumed by combinatorial and sequential cells within the considered LR Gathered by the reports of the baseline CGR system netlist
xxx