Basic HTML version of Foils prepared 20 February 00

Foil 52 Processor-DRAM Growing Performance Gap (latency)

From Introduction to Computational Science CPS615 Computational Science Class -- Spring Semester 2000. by Geoffrey C. Fox
From Jim Demmel -- remaining from David Culler
This implies need for complex memory systems to hide memory latency
µProc
60%/yr.
DRAM
7%/yr.
1
10
100
1000
1980
1981
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
DRAM
CPU
1982
Processor-Memory
Performance Gap: (grows 50% / year)
Time
"Moore's Law"
Performance

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