Bandwidth

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September 5, 2010 10:00 PM PDT




The capacity of a system, usually expressed as “items per second.” In parallel computing, the most common usages of the term bandwidth are in reference to the number of bytes per second that can be moved across a network link or memory subsystem. A parallel program that generates more information per second than can be transported across a given interface is called a “bandwidth-limited” program. See bi-section bandwidth.