Earlier quoted context omitted.
That undersells it IMHO. Here's the abstract: This work describes a general, scalable method for building data-parallel by construction tree transformations that exhibit simplicity, directness of expression, and high-performance on both CPU and GPU architectures when executed on either interpreted or compiled platforms across a wide range of data sizes, as exemplified and expounded by the exposition of a complete com…
Does it really matter that it's only 17 lines if they're dense, undecipherable APL See page 210 in the pdf.
Do you know APL? It's pretty asinine to jump directly deep into a technical document and complain that something is indecipherable to you. The 210 excerpt is completely readable once you've gone through the dissertation, especially since the author goes way out of his way to teach you the necessary APL along the way.