Basic HTML version of Foils prepared 23 August 1998
Foil 76 Amdahl's law for Real World Parallel Processing
From CPS615-Introduction-Course,Driving Technology and HPCC Current Status and Futures CPS615 Basic Simulation Track for Computational Science -- Fall Semester 98. byGeoffrey C. Fox, (Some Culler, Koelbel material)
AMDAHL"s LAW or
Too many cooks spoil the broth
Says that
Speedup S is small if efficiency e small
or for Hadrian's wall
equivalently S is small if length l small
But this is irrelevant as we do not need parallel processing unless problem big!