High Level Loop Transformations for Systematic Signal Processing Embedded Applications

Array-OL specification model is a mixed graphical-textual language designed especially to model multidimensional intensive signal processing applications. Data and Task parallelism are specified directly in the model. High level transformations are defined on this model, allowing the refactoring of an application and furthermore providing directions for optimization. The resemblances with the wide-known and used loop transformations lead us to try taking concepts and results from this domain and see how they fit in Array-OL context. We try to identify the links between these two domains and also future directions for Array-OL, optimization techniques especially