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Numerical simulations of groundwater flow and chemical transport through three-dimensional heterogeneous porous media are… Expand In this paper, we describe scalable parallel algorithms for symmetric sparse matrix factorization, analyze their performance and… Expand Most recent MPP systems employ a fast microprocessor surrounded by a shell of communication and synchronization logic. The CRAY… Expand Paradyn is a performance measurement tool for parallel and distributed programs. Paradyn uses several novel technologies so that… Expand MPI is the standard interface for message passing in parallel systems. The standard was deened in an open collaborative forum… Expand The MPP Apprentice™ performance tool is designed to help users tune the performance of their Cray T3D, applications. By… Expand The Cray T3D uses a bidirectional, 3D torus interconnection network. Virtual channels are used both to prevent deadlock, and to… Expand This paper discusses the numerical simulation of groundwater flow through heterogeneous porous media. The focus is on the… Expand The authors present Cray Research's massively parallel processing (MPP) philosophy, together with a brief description of the… Expand Abstract Three parallel algorithms for classical molecular dynamics are presented. The first assigns each processor a fixed… Expand