HyperC: portable parallel programming in C

We introduce the HyperC language, a data parallel extension of C intended for portability over a wide range of architectures. We present the main topics of the language: the explicit parallelism through the data, the synchronous semantics and the parallel flow control that allows asynchronous execution, new function qualifiers to emphasize locality properties code and, finally, new communication techniques to allow overlap of communications and computations even for irregular computations. All these features are discussed with respect to portability and code reusability issues