I was wondering why this F is coming in the above equation. It is because of this F that the entire computing world is in trouble or at least the job’s of software developers are in trouble. 🙂
Combing through my undergraduate books I found a very good explanation of how the above equations come in the Book by Sedra and Smith Section 4.10.
In his keynote address in The AMD Developer Fusion Summit (AFDS), Jem Davies ARM Fellow,VP of Technology, Media Processing Division, emphasized that the current need is the current we must focus on Functionality Per Unit Cost Per Unit Energy and not Functionality Per Unit Cost Per Unit Power. Those days are gone!
What is Dark Silicon?
Refer to the above slide. A we are putting more transistors in a single chip, it is creating problem. The basic problem is if so many transistors are powered simultaneously on such a small area, it will generate lots of heat, which will raise the temperature of this chip and thus ultimately the chip can burn and become useless. Therefore we will have to switch off approximately 75% of the transistors by 2014. this figure will grow to approximately to 90% by 2020. !!
These unlit transistors constitute DARK SILICON.