A Brief Survey of Non-Residue Based Computational Error Correction

TL;DR

This paper surveys non-residue based methods for computational error correction, highlighting alternatives to residue codes used to improve reliability and energy efficiency in unreliable devices and harsh environments.

Contribution

It provides a high-level overview of various non-residue based error correction techniques, expanding the understanding beyond residue code approaches.

Findings

Highlights non-residue error correction techniques

Discusses applications in unreliable devices and environments

Provides a comparative overview of methods

Abstract

The idea of computational error correction has been around for over half a century. The motivation has largely been to mitigate unreliable devices, manufacturing defects or harsh environments, primarily as a mandatory measure to preserve reliability, or more recently, as a means to lower energy by allowing soft errors to occasionally creep. While residue codes have shown great promise for this purpose, there have been several orthogonal non-residue based techniques. In this article, we provide a high level outline of some of these non-residual approaches.