Basic HTML version of Foils prepared 21 October 1995

Foil 46 Necessary Latency to Support Three Categories

From New CPS615 Foils-- B 28 August 95 CPS615 Basic Simulation Track for Computational Science -- Fall Semester 95. by Geoffrey C. Fox
1 This is formal latency to ensure that one can reach design goals of previous table. I picosecond (Category I) cannot be attained. You solve this by having N concurrent streams -- Then each of them needs latency of N picoseconds
2 e.g. If output rate of an arithmetic unit is 1 per nanosecond, then each of 400 teraflop CPU's in Category I design must have 1000 arithmetic units running at full speed to each full system performance of 0.4 petaflops
3 See Chapter 6 of Petaflops Report -- July 94
in Table To:

© on Tue Oct 7 1997