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In [[computer science]] and particularly in [[compiler]] design, '''loop nest optimization''' (LNO) is an optimization technique that applies a set of [[loop transformation]]s for the purpose of [[Locality of reference|locality]] optimization or parallelization or other loop overhead reduction of the loop nests. One classical usage is to reduce memory access latency or the cache bandwidth necessary due to cache reuse for some common [[linear algebra]] [[algorithm]]s.
The technique used to produce this optimization is called '''loop tiling''',<ref name="MuchnickAssociates1997">{{cite book|author1=Steven Muchnick|author2=Muchnick and Associates|title=Advanced Compiler Design Implementation|url=https://books.google.com/books?id=Pq7pHwG1_OkC&printsec=frontcover#v=snippet&q=tiling&f=false|date=15 August 1997|publisher=Morgan Kaufmann|isbn=978-1-55860-320-2}}</ref> also known as '''loop blocking'''<ref name="CardosoDiniz2011">{{cite book|author1=João M.P. Cardoso|author2=Pedro C. Diniz|title=Compilation Techniques for Reconfigurable Architectures|url=https://books.google.com/books?id=4xwWNCiF9CgC&printsec=frontcover#v=snippet&q=%22loop%20tiling%22&f=false|date=2 April 2011|publisher=Springer Science & Business Media|isbn=978-0-387-09671-1}}</ref> or '''strip mine and interchange'''.
== Overview ==
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