Dustin: A 16-Cores Parallel Ultra-Low-Power Cluster with 2b-to-32b Fully Flexible Bit-Precision and Vector Lockstep Execution Mode | Gianmarco Ottavi∗ , Angelo Garofalo∗ , Giuseppe Tagliavini† , Francesco Conti∗ , Alfio Di Mauro‡ , Luca Benini∗‡, and Davide Rossi∗ ∗Department of Electrical, Electronic and Information Engineering (DEI), University of Bologna, Italy †Department of Computer Science and Engineering (DISI), University of Bologna, Italy ‡ IIS Integrated Systems Laboratory, ETH Zurich, Switzerland