Basic HTML version of Foils prepared 17 November 98

Foil 15 Sequential Memory Structure

From Master Foilset for HPC Achitecture Overview CPS615 Introduction to Computational Science -- Fall Semester 1998. by Geoffrey C. Fox
Data locality implies CPU finds information it needs in cache which stores most recently accessed information
This means one reuses a given memory reference in many nearby computations e.g.
A1 = B*C
A2 = B*D + B*B
.... Reuses B
L3 Cache
Main
Memory
Disk
Increasing Memory
Capacity Decreasing
Memory Speed (factor of 100 difference between processor
and main memory
speed)

© Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

If you have any comments about this server, send e-mail to webmaster@npac.syr.edu.

Page produced by wwwfoil on Sun Apr 11 1999