Grid Computing Unit I Introduction

Information anytime anywhere!!! support computation across administrative domains Generally  virtualizing computing resources Definition –Allows sharing and coordinated use of diverse resources in dynamic, distributed “virtual organizations”.

Grid Computing3 Electrical Power Grid Analogy Electrical power grid users (or electrical appliances) get access to electricity through wall sockets with no care or for where or how the electricity is actually generated. “The power grid” links together power plants of many different kinds The Grid users (or client applications) gain access to computing resources) with little or no knowledge where those resources are located or what the underlying technologies, hardware, operating system, and so on "the Grid" links together computing resources –(PCs, workstations, servers, storage elements) and provides the mechanism needed to access them. Common for both: Infrastructure, pervasive, utility

Types of computing(some) –Cloud Computing Moving individual application server to a “cloud” of computers –Utility Computing virtualization –Distributed Computing running a single calculation on multiple computers –Cluster Computing group of linked computers, working together –Peer to Peer computing Sharing of computer resources and services by direct exchange between systems(peers).

Types of Grid –Computational grid –Data Grid Goals –Remote access –Aggregate processing power Enables –Virtual organization –Dynamic resource sharing

First grid initiative project Million volunteers can download a screensaver Recently –Telescience Project Remote access to powerful electron microscope [national centre for microscopy & imaging research-SanDiago] project proteins take certain shapes, called folds, and how that relates to what proteins do

Building Blocks –N/w –Computing nodes –storage

Downside? –Security –Project directors –Complexity –Standard protocol

Application –Scientific research, –oil and gas fields, – banking and –education