Advanced Computer Architecture Chapter 7.11
How to add another
processor?
Idea: instead of trying to exploit more instruction-level
parallelism by building a bigger CPU, build two - or
more
This only makes sense if the application parallelism exists…
Why might it be better?
No need for multiported register file
No need for long-range forwarding
CPUs can take independent control paths
Still need to synchronise and communicate
Program has to be structured appropriately…