JargonFile/entries/strided.txt
2014-04-26 16:54:15 +01:00

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strided
/stri:d@d/ , adj. [scientific computing] Said of a sequence of memory reads
and writes to addresses, each of which is separated from the last by a
constant interval called the stride length. These can be a worst-case access
pattern for the standard memory-caching schemes when the stride length is a
multiple of the cache line size. Strided references are often generated by
loops through an array, and (if your data is large enough that access-time
is significant) it can be worthwhile to tune for better locality by
inverting double loops or by partially unrolling the outer loop of a loop
nest. This usage is borderline techspeak; the related term memory stride is
definitely techspeak.