Editing Scalable Coherent Interface (section)

{{Short description|High-speed interconnect standard for shared memory multiprocessing and message passing}}
{{Infobox organization
 |name= Scalable Coherent Interface and Serial Express Users, Developers, and Manufacturers Association 
 |image= SCIzzL logo.gif
 |caption= Group that supports the standard
 |abbreviation=SCIzzL
 |formation= 1996
 |type= Non-profit
 |website= {{URL |www.scizzl.com}}
}}

The '''Scalable Coherent Interface''' or '''Scalable Coherent Interconnect''' ('''SCI'''), is a high-speed interconnect standard for shared memory multiprocessing and message passing. The goal was to scale well, provide system-wide [[memory coherence]] and a simple interface; i.e. a standard to replace existing buses in multiprocessor systems with one with no inherent scalability and performance limitations.

The IEEE Std 1596-1992, IEEE Standard for Scalable Coherent Interface (SCI) was approved by the IEEE standards board on March 19, 1992.<ref name="std92">{{Cite book |title= IEEE Standard for Scalable Coherent Interface (SCI) |publisher= IEEE Standards Board |year= 1992 |isbn= 9780738129501 |url= http://www.techstreet.com/products/25154 }}</ref> It saw some use during the 1990s, but never became widely used and has been replaced by other systems from the early 2000s.