Basic HTML version of Foils prepared 17 November 98

Foil 20 Parallel Computer Memory Structure

From Master Foilset for HPC Achitecture Overview CPS615 Introduction to Computational Science -- Fall Semester 1998. by Geoffrey C. Fox
For both parallel and sequential computers, cost is accessing remote memories with some form of "communication"
Data locality addresses in both cases
Differences are quantitative size of effect and what is done by user and what automatically
Main
Memory
Interconnection Network
....
....
Main
Memory
Main
Memory
Slow
Can be Very Slow

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