I’m faced with a fairly specific problem: Compute the pairwise distances between two matrices $X$ and $Y$ as quickly as possible. We’ll assume that $Y$ is fairly small, but $X$ may not fit in memory. This post tracks my progress.

I’m faced with a fairly specific problem: Compute the pairwise distances between two matrices $X$ and $Y$ as quickly as possible. We’ll assume that $Y$ is fairly small, but $X$ may not fit in memory. This post tracks my progress.