archs - 1 CSCI 5105 Foundations of Modern Operating Systems...

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Unformatted text preview: 1 CSCI 5105 Foundations of Modern Operating Systems Instructor: Abhishek Chandra 2 Today Distributed Systems Hardware Classification Distributed Architectures Centralized Distributed Hybrid 3 Distributed Systems: Hardware Classification Multiprocessor system Homogeneous Multicomputer system Heterogeneous Multicomputer system 4 Multiprocessor Systems Hardware features Memory: Typically shared with private cache Interconnect: could be shared (bus-based) or switched Tightly-coupled system and homogeneous 2 5 Homogeneous Multicomputer Systems Hardware features Have private memory Connected by LAN or an interconnect Homogeneous hardware/OS Examples: Massively-parallel processors (MPPs) Clusters-of-Workstations (COWs) 6 Heterogeneous Multicomputer Systems Hardware features: Each machine is autonomous Has own hardware/OS Connection through the Internet Loosely-coupled system and heterogeneous Examples: Web Grids 7 Distributed System Architecture A distributed application runs across multiple machines How to organize the various pieces of the application?...
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archs - 1 CSCI 5105 Foundations of Modern Operating Systems...

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