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Date: Tue, 10 Dec 1996 21:47:45 GMTServer: NCSA/1.4.2Content-type: text/htmlLast-modified: Tue, 28 Feb 1995 07:07:10 GMTContent-length: 1084<html><head> <title> Collective Communications </title></head><body><h1> <a name="top">Collective Communications </a></h1><p><a href = "http:intercom/intercom.html"> Collective communications </a>are routines that require greater than two processorsto communicate in order to carry out some global operation on distributeddata. This is in contrast to a point-to-point operation such as a simplesend/receive or data exchange. These operations include broadcast, reduction,scatter/gather, combine, scan (or parallel prefix). <p>These operations can be found in <a href="http:./explicit.html"> explicitly written parallel applications</a>,<a href="http:./remap.html"> remapping of data</a>, <a href="http:./update.html"> updating of globals in a distributed memory environment</a>, <a href="http:./sync.html"> synchronizing a group of processes</a>,<a href="http:./library.html"> library routines optimized for the particular interconnection</a>.<hr><address> <a href="http://www.cs.washington.edu/homes/derrick">W. Derrick Weathersby </a> </address></html>⌨️ 快捷键说明
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