Full HTML for

Basic foilset Some Numerical Memory and MicroProcessor Projections for PetaFlops

Given by Peter Kogge Notre Dame at JNAC (PetaFlops) Presentation on August 28,1996. Foils prepared August 24 1996
Outside Index Summary of Material

This was part of a set of PetaFlop (JNAC) Presentations to group of Federal Program Managers
JNAC = Joint National Advanced Computing Initiative
This uses Moore's Law Projections of Technology for Logic and Memory
and uses Bodega Bay Application Analysis to cost memory for a "realistic" machine

Table of Contents for full HTML of Some Numerical Memory and MicroProcessor Projections for PetaFlops

 Denote Foils where Image Critical
Denote Foils where HTML is sufficient
1 Technology Projections
2 Conventional Microprocessor Unit Performance Path
3 Primary Memory Chip Cost
4 Notes on Primary Memory $
5 Bodega Bay Petaflops Applications Characteristics
6 Achieving 1 PF vs Bodega Bay Applications

Outside Index Summary of Material

HTML version of Basic Foils prepared August 24 1996

Foil 1 Technology Projections

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
Slope of Each: approx 2.7X every 3 years
HTML version of Basic Foils prepared August 24 1996

Foil 2 Conventional Microprocessor Unit Performance Path

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
Assumes:
* 100% efficient utilization
* SIA Growth in Clock Rate
* Growth in instruction issue parallelism
In 2004 technology (for 2007 machine)
160,000 such processors gives 1 PF peak.
Problem: each requires caches, memory, I/O!
HTML version of Basic Foils prepared August 24 1996

Foil 3 Primary Memory Chip Cost

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
$1 Billion
$10 Million
HTML version of Basic Foils prepared August 24 1996

Foil 4 Notes on Primary Memory $

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
$ are chip costs along (packaging, cooling, "batteries" extra)
  • Thus 10 TB in 1998 technology is $100M
"% of Petaflops Apps" refers to Bodega Bay Applications
  • Thus somewhat more than 50% of Bodega Bay apps require less than 1 TB for execution
Real systems probably require some multiple of this memory for next app preload, I/O buffers, etc.
HTML version of Basic Foils prepared August 24 1996

Foil 5 Bodega Bay Petaflops Applications Characteristics

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
PETABYTE
TERABYTE
15 min
1 Day
1 Year
HTML version of Basic Foils prepared August 24 1996

Foil 6 Achieving 1 PF vs Bodega Bay Applications

From Some Numerical Memory and MicroProcessor Projections for PetaFlops JNAC (PetaFlops) Presentation -- August 28,1996. *
Full HTML Index
10 TB Primary Memory supports almost all apps whose run time is under 1 day + over half of those that run > 1 day.
For 2007 conventional machine, using 2004 technology and a mere 10 TB primary memory
  • Approx. 20,000 DRAM chips @ $10M chip cost
  • AT LEAST 160,000 of state of art microprocessors
  • Problem: 1 memory chip/8 uPs fails bandwidth test!!!
At $1,000 per uP (cache, cooling, ...), this is approx
  • $200M machine
  • 1M sq. cm. of silicon
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