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Non-Uniform Fault Tolerance Jonathan Chang George A. Reis Neil Vachharajani Ram Rangan David I. August
 

Summary: Non-Uniform Fault Tolerance
Jonathan Chang George A. Reis Neil Vachharajani Ram Rangan David I. August
Departments of Electrical Engineering and Computer Science
Princeton University
Princeton, NJ 08544
{jcone,gareis,nvachhar,ram,august}@princeton.edu
Abstract
As devices become more susceptible to transient faults
that can affect program correctness, processor designers
will increasingly compensate by adding hardware or soft-
ware redundancy. Proposed redundancy techniques and
those currently in use are generally applied uniformly to a
structure despite non-uniformity in the way errors within the
structure manifest themselves in programs. This uniform
protection leads to inefficiency in terms of performance,
power, and area. Using case studies involving the register
file, this paper motivates an alternative Non-Uniform Fault
Tolerance approach which improves reliability over uniform
approaches by spending the redundancy budget on those ar-
eas most susceptible.

  

Source: August, David - Department of Computer Science, Princeton University

 

Collections: Computer Technologies and Information Sciences