EAN: 9783031006029

SYNTHESIS LECTURES ON COMPUTER ARCHITECTURE H...

Datacenter networks provide the communication substrate for large parallel computer systems
that form the ecosystem for high performance computing (HPC) systems and modern Internet
applications. The design of new datacenter networks is motivated by an array of applications
ranging from communication intensive climatology  complex material simulations and molecular
dynamics to such Internet applications as Web search  language translation  collaborative
Internet applications  streaming video and voice-over-IP. For both Supercomputing and Cloud
Computing the network enables distributed applications to communicate and interoperate in an
orchestrated and efficient way. This book describes the design and engineering tradeoffs of
datacenter networks. It describes interconnection networks from topology and network
architecture to routing algorithms  and presents opportunities for taking advantage of the
emerging technology trends that are influencing router microarchitecture. With the emergence of
many-core processor chips  it is evident that we will also need many-port routing chips to
provide a bandwidth-rich network to avoid the performance limiting effects of Amdahl's Law. We
provide an overview of conventional topologies and their routing algorithms and show how
technology  signaling rates and cost-effective optics are motivating new network topologies
that scale up to millions of hosts. The book also provides detailed case studies of two high
performance parallel computer systems and their networks. Table of Contents: Introduction  
Background   Topology Basics   High-Radix Topologies   Routing   Scalable Switch
Microarchitecture   System Packaging   Case Studies   Closing Remarks

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