Introducing Dynamicity in the Data-Parallel Language

. The main motivation of 81/2 is to develop a high-level language that supports the parallel simulation of dynamical processes [1, 2]. To achieve this goal, a new data-structure, that merges the concept of stream and collection is introduced in a declarative framework. After a brief description of 81/2 basics, we describe the introduction of dynamicity and symbolic values in the language. We focus on the expressivity and issues brought by the new dynamic possibilities of the language and show, through several paradigmatic examples, that our computation model is able to support parallel symbolic processing. 1 The Declarative Data-Parallel Language 81/2 1.1 Motivations: the Implicit Data-Parallel Approach to Parallel Symbolic Processing 81/2 is an experimental language combining features of collection and stream oriented languages in a declarative framework. It tries to promote the construction of parallel programs by isolating the programmer from the complexities of parallel proces..