{"id":65,"date":"2013-06-14T11:49:33","date_gmt":"2013-06-14T11:49:33","guid":{"rendered":"https:\/\/demo.codestag.com\/forest\/?p=65"},"modified":"2016-07-09T15:32:11","modified_gmt":"2016-07-09T15:32:11","slug":"computer-clusters-and-how-they-work","status":"publish","type":"post","link":"https:\/\/demo.codestag.com\/forest\/computer-clusters-and-how-they-work\/","title":{"rendered":"Computer Clusters and how they work"},"content":{"rendered":"<section class=\"stag-section stag-intro-text\"><p>A computer cluster consists of a set of loosely connected or tightly connected computers that work together so that in many respects they can be viewed as a single system. <\/p>\n<\/section>\n<p>The components of a cluster are usually connected to each other through fast local area networks (&#8220;LAN&#8221;), with each node (computer used as a server) running its own instance of an operating system.\u00a0Computer clusters emerged as a result of convergence of a number of computing trends including the availability of low cost microprocessors, high speed networks, and software for high performance distributed computing.<br \/>\n<!--more--><\/p>\n<h4>Attributes of clusters<\/h4>\n<p>Computer clusters may be configured for different purposes ranging from general purpose business needs such as web-service support, to computation-intensive scientific calculations. In either case, the cluster may use a <strong>high-availability approach.<\/strong> Note that the attributes described below are not exclusive and a &#8220;compute cluster&#8221; may also use a high-availability approach, etc. A load balancing cluster with two servers and 4 user stations &#8220;Load-balancing&#8221; clusters are configurations in which cluster-nodes share computational workload to provide better overall performance.<\/p>\n<h4>Design of Clusters<\/h4>\n<p>However, approaches to load-balancing may significantly differ among applications, e.g. a high-performance cluster used for scientific computations would balance load with different algorithms.\u00a0A load balancing cluster with two servers and 4 user stations &#8220;Load-balancing&#8221; clusters are <strong>configurations in which cluster-nodes share computational workload<\/strong> to provide better overall performance.<\/p>\n<p>Clusters are usually deployed to improve performance and availability over that of a single computer, while typically being much more cost-effective than single computers of comparable speed or availability. Computer clusters have a wide range of applicability and deployment, ranging from small business clusters with a handful of nodes to some of the fastest supercomputers in the world such as IBM&#8217;s Sequoia.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The components of a cluster are usually connected to each other through fast local area networks (&#8220;LAN&#8221;), with each node (computer used as a server) running its own instance of an operating system.\u00a0Computer clusters emerged as a result of convergence of a number of computing trends including the availability of low cost microprocessors, high speed networks, and software for high performance distributed computing.<\/p>\n","protected":false},"author":1,"featured_media":401,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,7],"tags":[9,10],"class_list":["post-65","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-events","category-experience","tag-interface","tag-tech"],"jetpack_featured_media_url":"https:\/\/demo.codestag.com\/forest\/wp-content\/uploads\/sites\/11\/2016\/07\/1-1.jpg","_links":{"self":[{"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/posts\/65","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/comments?post=65"}],"version-history":[{"count":11,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/posts\/65\/revisions"}],"predecessor-version":[{"id":426,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/posts\/65\/revisions\/426"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/media\/401"}],"wp:attachment":[{"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/media?parent=65"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/categories?post=65"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/demo.codestag.com\/forest\/wp-json\/wp\/v2\/tags?post=65"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}