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Abstract

(Maximum 200 words) One of the Grand Challenges of the Federal High Performance Computing and Communications (HPCC) Program is in remote exploration and experimentation (REE). The goal of the REE Project is to develop a space-borne computing technology base that will enable the next generation of missions to explore the Earth and the Solar System. This paper discusses an ongoing study that uses a recent development in communication control technology to implement hybrid hypercube structures. These architectures are similar to binary hypercubes, but they also provide added connectivity between the processors. This added connectivity increases communication reliability while decreasing the latency of interprocessor message passing. Because these factors directly determine the speed that can be obtained by multiprocessor systems, these architectures are attractive for applications such as REE, where high performance and ultrareliability are required. This paper describes and enumerates t..