Introduction to High Performance Computing for Scientists and Engineers

Introduction to High Performance Computing for Scientists and Engineers

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Written by high performance computing (HPC) experts, Introduction to High Performance Computing for Scientists and Engineers provides a solid introduction to current mainstream computer architecture, dominant parallel programming models, and useful optimization strategies for scientific HPC. From working in a scientific computing center, the authors gained a unique perspective on the requirements and attitudes of users as well as manufacturers of parallel computers. The text first introduces the architecture of modern cache-based microprocessors and discusses their inherent performance limitations, before describing general optimization strategies for serial code on cache-based architectures. It next covers shared- and distributed-memory parallel computer architectures and the most relevant network topologies. After discussing parallel computing on a theoretical level, the authors show how to avoid or ameliorate typical performance problems connected with OpenMP. They then present cache-coherent nonuniform memory access (ccNUMA) optimization techniques, examine distributed-memory parallel programming with message passing interface (MPI), and explain how to write efficient MPI code. The final chapter focuses on hybrid programming with MPI and OpenMP. Users of high performance computers often have no idea what factors limit time to solution and whether it makes sense to think about optimization at all. This book facilitates an intuitive understanding of performance limitations without relying on heavy computer science knowledge. It also prepares readers for studying more advanced literature. Read about the authorsa€™ recent honor: Informatics Europe Curriculum Best Practices Award for Parallelism and ConcurrencyGeorg Hager, Gerhard Wellein. 1 rest = mod(N, 2) 2 ... Lacking extensive compiler reports, the only option to identify such a failure is manual inspection of the generated assembly code. ... Every modern compiler has command line switches that allow a (more or less) fine-grained tuning of the available optimization options.

Title:Introduction to High Performance Computing for Scientists and Engineers
Author:Georg Hager, Gerhard Wellein
Publisher:CRC Press - 2010-07-02


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