High Performance Datacenter Networks

2011 Computers

Author : Dennis Abts
Release : 2011
Genre : Computers
Kind : eBook
Book Rating : 029/5 ( reviews)

Book Synopsis High Performance Datacenter Networks by : Dennis Abts

Download or read book High Performance Datacenter Networks written by Dennis Abts. This book was released on 2011. Available in PDF, EPUB and Kindle. Book excerpt: 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. --Book Jacket.

High Performance Datacenter Networks

2011-02-02 Computers

Author : Dennis Abts
Release : 2011-02-02
Genre : Computers
Kind : eBook
Book Rating : 037/5 ( reviews)

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Book Synopsis High Performance Datacenter Networks by : Dennis Abts

Download or read book High Performance Datacenter Networks written by Dennis Abts. This book was released on 2011-02-02. Available in PDF, EPUB and Kindle. Book excerpt: 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

High Performance Networks

2022-05-31 Technology & Engineering

Author : Dennis Abts
Release : 2022-05-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 307/5 ( reviews)

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Book Synopsis High Performance Networks by : Dennis Abts

Download or read book High Performance Networks written by Dennis Abts. This book was released on 2022-05-31. Available in PDF, EPUB and Kindle. Book excerpt: 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

Improving Datacenter Network Performance Via Intelligent Network Edge

2017

Author : Keqiang He
Release : 2017
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis Improving Datacenter Network Performance Via Intelligent Network Edge by : Keqiang He

Download or read book Improving Datacenter Network Performance Via Intelligent Network Edge written by Keqiang He. This book was released on 2017. Available in PDF, EPUB and Kindle. Book excerpt: Datacenter networks are critical building blocks for modern cloud computing infrastructures. In this dissertation, we show how we can leverage the flexibility and high programmability of datacenter network edge (i.e., end-host networking) [101, 102] to improve the performance of three key functionalities in datacenter networks -- traffic load balancing, congestion control and rate limiting. Datacenter networks need to deal with a variety of workloads, ranging from latency-sensitive small flows to bandwidth-hungry large flows. In-network hardware-based load balancing schemes which are based on flow hashing, e.g., ECMP, cause congestion when hash collisions occur. To solve this problem, we propose a soft-edge load balancing scheme called Presto. Presto load-balances on near uniform-sized small data units (flowcells) and spreads flowcells across the symmetric network via the virtual switches on the senders. Because of fine-grained flowcell-level load balancing, packets may arrive out of order at the receiver side, so we propose a mechanism to handle reordering in the Generic Receive Offload (GRO) functionality below the TCP layer. Presto avoids the hash collision problem and improves traffic load balancing performance significantly. Optimized traffic load balancing alone is not sufficient to guarantee high-performance datacenter networks. Virtual Machine (VM) technology plays an integral role in modern multi-tenant clouds by enabling a diverse set of software to be run on a unified underlying framework. This flexibility, however, comes at the cost of dealing with outdated, inefficient, or misconfigured TCP stacks implemented in the VMs. We propose a congestion control virtualization technique called AC/DC TCP. AC/DC TCP exerts fine-grained control over arbitrary tenant TCP stacks by enforcing per-flow congestion control in the virtual switch (vSwitch) in the hypervisor. AC/DC TCP is light-weight, flexible, scalable and can police non-conforming flows. Besides queueing latency in network switches, we observe that rate limiters on end-hosts can also increase network latency by an order of magnitude or even more. To this end, we propose two techniques -- DEM and SPRING to improve the performance of rate limiters. Our experiment results demonstrate that DEM and SPRING-enabled rate limiters can achieve high stable throughput and low latency.

High Performance Data Network Design

2002-01-24 Computers

Author : Tony Kenyon
Release : 2002-01-24
Genre : Computers
Kind : eBook
Book Rating : 456/5 ( reviews)

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Book Synopsis High Performance Data Network Design by : Tony Kenyon

Download or read book High Performance Data Network Design written by Tony Kenyon. This book was released on 2002-01-24. Available in PDF, EPUB and Kindle. Book excerpt: High-Performance Data Network Design contains comprehensive coverage of network design, performance, and availability. Tony Kenyon provides the tools to solve medium- to large-scale data network design problems from the ground up. He lays out a practical and systematic approach that integrates network planning, research, design, and deployment, using state-of-the-art techniques in performance analysis, cost analysis, simulation, and topology modeling.The proliferation and complexity of data networks today is challenging our ability to design and manage them effectively. A new generation of Internet, e-commerce, and multimedia applications has changed traditional assumptions on traffic dynamics, and demands tight quality of service and security guarantees. These issues, combined with the economics of moving large traffic volumes across international backbones, mean that the demands placed on network designers, planners, and managers are now greater than ever before. High-Performance Data Network Design is a "must have" for anyone seriously involved in designing data networks. Together with the companion volume, Data Networks: Routing, Security, and Performance Optimization, this book gives readers the guidance they need to plan, implement, and optimize their enterprise infrastructure.·Provides real insight into the entire design process·Includes basic principles, practical advice, and examples of design for industrial-strength enterprise data networks·Integrates topics often overlooked—backbone optimization, bottleneck analysis, simulation tools, and network costing

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