Chapter 2 Computer Clusters Lecture 2.2 Computer Cluster Architectures

We will first discuss basic, small-scale PC or server clusters. Then we will discuss how to construct large- scale clusters

Basic Cluster Architecture

Large Cluster Architecutres In building large-scale clusters, cluster nodes are classified into two categories: compute nodes and service nodes. – Compute nodes appear in larger quantities mainly used for largescale searching or parallel floating-point computations. – Service nodes could be built with different processors mainly used to handle I/O, file access, and system monitoring. For MPP clusters, the compute nodes dominate in system cost, because we may have 1,000 times more compute nodes than service nodes in a single large clustered system.

MPP Cluster Compute node architecture – Homegeneous design – Hybrid node design

Example MPP Cluster Architecture – IBM Blue Gene/L System

Hardware, Software, and Middleware Support for Large Scale Clusters

Chapter 2 Computer Clusters Lecture 2.3 Cluster System Interconnects

High-Bandwidth Interconnect Technologies Compare four interconnect technologies

Interconnect Example: Google Search Engine Cluster

InfiniBand Architecture