compare between grid and cluster - Comparison of Grid...

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Comparison of Grid Computing vs. Cluster Computing http://www.jatit.org/research/introduction_grid_computing.htm Grid computing is focused on the ability to support computation across administrative domains sets it apart from traditional computer clusters or traditional distributed computing. Grids offer a way of using the information technology resources optimally inside an organization. In short, it involves virtualizing computing resources. Grid computing is often confused with cluster computing. Functionally, one can classify grids into several types: Computational Grids (including CPU scavenging grids) , which focuses primarily on computationally-intensive operations, and Data grids , or the controlled sharing and management of large amounts of distributed data. Definitions of Grid Computing There are many definitions of the term: Grid computing: 1. A service for sharing computer power and data storage capacity over the Internet 2. An ambitious and exciting global effort to develop an environment in which individual users can access computers, databases and experimental facilities simply and transparently, without having to consider where those facilities are located. [RealityGrid, Engineering & Physical Sciences Research Council, UK 2001] http://www.realitygrid.org/information.html 3. Grid computing is a model for allowing companies to use a large number of computing resources on demand, no matter where they are located. www.informatica.com/solutions/resource_center/glossary/default.htm Difference Between Cluster Computing VS. Grid Computing When two or more computers are used together to solve a problem, it is called a computer cluster . Then there are several ways of implementing the cluster, Beowulf is maybe the most known way to do it, but basically it is just cooperation between computers in order to solve a task or a problem. Cluster Computing is then just the thing you do when you use a computer cluster. Grid computing is something similar to cluster computing, it makes use of several computers connected is some way, to solve a large problem. There is often some confusion about the difference between grid vs. cluster computing. The big difference is that a cluster is homogenous while grids are heterogeneous. The computers that are part of a grid can run different operating systems and have different hardware whereas the cluster computers all have the same hardware and OS. A grid can make use of spare computing power on a desktop computer while the machines in a cluster are dedicated to work as a single unit and nothing else. Grid are inherently distributed by its nature over a LAN, metropolitan or WAN. On the other hand, the computers in the cluster are normally contained in a single location or complex. Another difference lies in the way resources are handled. In case of Cluster, the whole
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compare between grid and cluster - Comparison of Grid...

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