1 | In both cases, one is "solving" the "same" problem j --> .25 (jleft +jright + jup + jdown) |
2 | over a set of points |
3 | In sequential case, problem is "solved" over the full domain |
4 | In parallel case, problem is "solved" over part of domain (roughly one sixteenth of it) i.e. each node is solving same problem as sequential case but over a different - smaller geometry |
5 | In sequential case, boundary conditions are "just" fixed values on the edge |
6 | In the parallel case, boundary conditions are in addition, communicated values |