PPT Slide
Consider three application parallel efficiencies on 1000 processors. What is the most productive way to increase overall application performance?
Case 1: 90% Parallel Efficiency
10X faster processor yields ~5X application code speedup
Cut parallel inefficiency by 10X makes 5% increase in speed
Case 2: 50% Parallel Efficiency
10X faster processor yields ɚX application code speedup
Cut parallel inefficiency by 10X makes ~2X increase in speed
Case 3: 10% Parallel Efficiency
10X faster processor yields ~10% application code speedup
Cut parallel inefficiency by 10X makes ~9X increase in speed