An Integrated Khoros and Mpi System for the Development of Portable Parallel Dsp Applications

This paper reports on design issues involved in combining two public-domain paradigms to create a parallel software environment for DSP programming. MPI (Message-Passing Interface), a message passing system, is an evolving standard for parallel computing. Khoros is an integrated software environment for DSP. The goal of this work is to describe and demonstrate a software design that exploits Khoros and MPI parallel libraries for the deployment of parallel DSP. The resulting system enables parallel DSP using the Khoros system for development and the MPI system for performance portability. The new system provides MPIbased toolboxes containing data parallel modules and utilizes MPI as a means of communication between modules. We also explore extensions to the Khoros polymorphic data model that include the notion of data distribution. This is an important concept for building data distribution independent parallel libraries and of particular interest in this paper, data distribution independent DSP libraries..