This article needs attention from an expert in Computing. Please add a reason or a talk parameter to this template to explain the issue with the article. WikiProject Computing may be able to help recruit an expert. ( November 2020) The Borg, a 52-node Beowulf cluster used by the McGill University pulsar group to search for pulsations from binary pulsars A Beowulf cluster is a computer cluster of what are normally identical, commodity-grade computers networked into a small local area network with libraries and programs installed which allow processing to be shared among them. The result is a high-performance parallel computing cluster from inexpensive personal computer hardware. The name Beowulf originally referred to a specific computer built in 1994 by Thomas Sterling and Donald Becker at NASA. [1] The name "Beowulf" comes from the Old English epic poem of the same name. [2] No particular piece of software defines a cluster as a Beowulf. Beowulf clusters normally run a Unix-like operating system, such as BSD, Linux, or Solaris, normally built from free and open source software.
SCI is a ringtopology-based networking system unlike the star topology of Ethernet. That makes it faster to communicate between the nodes on a larger scale. Even more useful is a torus topology network, with many rings between the nodes. A twodimensional torus can be pictured as a grid of n by m nodes with a ring network at3 Seminar Report BEOWULF Cluster every row and every column. A three-dimensional torus is similar, with a 3D cubic grid of nodes that also has rings at every level. Supercomputing massively parallel systems use those to provide the relatively quickest path for communications between hundreds or thousands of nodes. The limiting factor in most of those systems is not the operating system or the network interfaces but the server's internal PCI bus system. Basic 32-bit, 33MHz PCI common in nearly all desktop PCs and most low-end servers offers only 133 MB per second (1 Gbps), stunting the power of those cards. Some costly highend servers such as the Compaq Proliant 6500 and IBM Netfinity 7000 series have 64-bit, 66-MHz cards that run at four times that speed.
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