High level loop transformations for systematic signal processing embedded applications

Abstract. Array-OL specification model is a mixed graphical-textual language designed to model multidimensional intensive signal processing applications. Data and task parallelism are specified directly in the model. High level trans-formations are defined on this model, allowing the refactoring of an applica-tion and furthermore providing directions for optimization. The resemblances between 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