ELI5: Explain Like I'm 5

Balancing domain decomposition method

Okay kiddo, let me explain what the balancing domain decomposition method is in a way you can understand.

Let's say you have a really big puzzle with lots of pieces that you want to put together. The problem is that it's so big that you can't do it by yourself. You need help from your friends. But you don't want everyone working on the same piece because that would be a waste of time. Instead, you want everyone to work on different parts of the puzzle at the same time.

This is where the balancing domain decomposition method comes in. It's like dividing the puzzle into smaller sections and giving each section to a different friend to work on. But you don't want one friend to have too many pieces to work on while another friend only has a few pieces. That wouldn't be fair, and it would slow down the overall progress of the puzzle.

So what you do is you count the number of puzzle pieces in each section and make sure that each friend has roughly the same number. This way, everyone is working at the same pace and making progress on their own sections. When they're done, they can put their sections together to complete the puzzle.

The balancing domain decomposition method works the same way for computers that are solving really big problems. Instead of a puzzle, you have a complex mathematical equation that needs to be solved. The equation is broken up into smaller sections, and different computers work on each section at the same time. But you need to make sure that each computer has about the same amount of work to do, or else some computers will finish much faster than others, and the whole process will slow down.

So the balancing domain decomposition method ensures that each computer is working at the same pace, and when they're done, all the pieces are put together to solve the equation. It's like solving a giant puzzle, but with computers!