1. In the summation example in class we saw two solutions: one where processor 0 is doing all the summation, and the second where there is a tree-like calculation. We found that the tree-like way is better. State two reasons as to why the tree-like solution is better. 2. Having load balancing, that is all processors or cores are doing roughly the same amount of work, leads to better performance. State two reasons as to why is that