Is This Simplistic Model Accurate?
It’s not even close ... but its good enough
Contention in the network makes times vary
On-processor time can dominate network time
Processors may not be adjacent, e.g. fat tree
Processors are not synchronized, so the interval of data transmission could expand
Transmission is not independent of the amount of data transmitted
- A better model: ? + ?w
- Startup time ? plus ? for each of w words