Post #13210 111 May 29, 2026, 06:29 UTC Folding in Parallelhttps://okmij.org/ftp/Algorithms/map-monoid-reduce.htmlhttps://redd.it/1tpvbpx@programmingreddit okmij.org Folding in Parallel Representing fold (sequential accumulation) as map composed with a reduce over a monoid, non-trivially and efficiently. This is a bedrock of parallel programming: however, although the general principle is known, applying it to concrete problems requires…