Download E-books High Performance Datacenter Networks: Architectures, Algorithms, & Opportunities (Synthesis Lectures on Computer Architecture) PDF

By Dennis Abts

Datacenter networks give you the conversation substrate for big parallel desktops that shape the environment for prime functionality computing (HPC) platforms and smooth net purposes. The layout of latest datacenter networks is prompted by way of an array of purposes starting from communique in depth climatology, advanced fabric simulations and molecular dynamics to such net purposes as net seek, language translation, collaborative web functions, streaming video and voice-over-IP. For either Supercomputing and Cloud Computing the community allows dispensed functions to speak and interoperate in an orchestrated and effective approach. This ebook describes the layout and engineering tradeoffs of datacenter networks. It describes interconnection networks from topology and community structure to routing algorithms, and offers possibilities for benefiting from the rising know-how traits which are influencing router microarchitecture. With the emergence of "many-core" processor chips, it really is glaring that we'll additionally want "many-port" routing chips to supply a bandwidth-rich community to prevent the functionality proscribing results of Amdahl's legislation. we offer an outline of traditional topologies and their routing algorithms and convey how know-how, signaling premiums and reasonably priced optics are motivating new community topologies that scale as much as hundreds of thousands of hosts. The ebook additionally offers exact case stories of 2 excessive functionality parallel desktops and their networks. desk of Contents: creation / history / Topology fundamentals / High-Radix Topologies / Routing / Scalable swap Microarchitecture / process Packaging / Case experiences / remaining comments

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Hierarchical Crossbar structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Examples of High-Radix Routers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . fifty one fifty two fifty four fifty five fifty seven ix 6. five. 1 Cray YARC Router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . fifty seven 6. five. 2 Mellanox InfiniScale IV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . fifty nine 7 method Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sixty three 7. 1 7. 2 7. three eight Case stories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . seventy three eight. 1 eight. 2 eight. three nine Packaging hierarchy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sixty three energy supply and cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sixty three Topology and Packaging Locality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sixty eight Cray BlackWidow Multiprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. 1 BlackWidow Node association . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. 2 High-radix Folded-Clos community . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. three approach Packaging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. four High-radix Fat-tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. five Packet structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. 6 community Layer movement keep an eye on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. 7 Data-link Layer Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 1. eight Serializer/Deserializer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cray XT Multiprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 2. 1 3D torus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 2. 2 Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 2. three circulate keep an eye on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . eight. 2. four SeaStar Router Microarchitecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . precis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . seventy three seventy three seventy four seventy five seventy six seventy seven seventy eight seventy eight eighty eighty eighty one eighty two eighty four eighty four 88 remaining comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety one nine. 1 nine. 2 nine. three Programming versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety one twine protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety one possibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety two Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety three Authors’ Biographies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ninety nine Preface This booklet is geared toward the researcher, graduate scholar and practitioner alike. we offer a few history and motivation to supply the reader with a substrate upon which we will be able to construct the hot options which are using high-performance networking in either supercomputing and cloud computing. We imagine the reader understands laptop structure and easy networking thoughts. We convey the evolution of high-performance interconnection networks over the span of 2 many years, and the underlying expertise tendencies riding those adjustments. We describe how one can observe those know-how drivers to let new community topologies and routing algorithms that scale to hundreds of thousands of processing cores.

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