I didn't want to associate this account w/ my real name but now that you mentioned it wasn't right of me to not point that out. I added a disclaimer.
The posted algorithm and the one mentioned in my paper are very similar. It is just that the cumulative sum computation is parallelized in the posted website.
The point of this post isn’t the linear transformer algorithm. They’re surveying a variety of Linear transformers and showing a general form in order to talk at large about their performance characteristics.
Also I note the only thing you have posted before is a link to this paper in particular.