Integration of Posit Arithmetic in RISC-V Targeting Low-Power Computations
David Mallasén, Raúl Murillo, Alberto Antonio Del Barrio, Guillermo Botella, Manuel Prieto · 2024
In this talk, we will describe how to leverage the promising posit number format introduced by John Gustafson in 2017 to reduce the energy consumption of the whole system. Posits were released as a direct drop-in replacement for the standard IEEE 754 and they are particularly accurate in the surroundings of 1. Furthermore, they do not suffer the IEEE 754 drawbacks when it comes to reproducing calculations across different machines. Our discussions will be centered around the promising posit properties as well as how to perform real deployments thanks to the RISC-V ISA.