Minimize Load Imbalance
But this has a flip side. Suppose we are decomposing Seismic wave problem and all the action is near a particular earthquake fault denoted by .
In Top decomposition only the white processor does any work while the other 3 sit idle.
- Ffficiency 25% due to Load Imbalance
In Bottom decomposition all the processors do roughly the same work and so we get good load balance …...