Sciweavers

GLVLSI
2010
IEEE

A multi-level approach to reduce the impact of NBTI on processor functional units

13 years 8 months ago
A multi-level approach to reduce the impact of NBTI on processor functional units
NBTI is one of the most important silicon reliability problems facing processor designers today. The impact of NBTI can be mitigated at both the circuit and microarchitecture levels. In this paper, we propose a multi-level optimization approach, combining techniques at the circuit and microarchitecture levels, for reducing the impact of NBTI on the functional units (FUs) of a highperformance processor core. We perform SPICE simulations to evaluate the impact of circuit-level design optimizations to reduce the NBTI guardband in terms of area, delay, and power. We then propose a set of NBTI-aware dynamic instruction scheduling policies at the microarchitecture level and quantify their impact on application performance and guardband reduction through executiondriven simulation. We show that carefully combining techniques at both these levels provides the most attractive solution to reducing the guardband while imposing the least overhead in terms of area, power, delay, and application pe...
Taniya Siddiqua, Sudhanva Gurumurthi
Added 10 Jul 2010
Updated 10 Jul 2010
Type Conference
Year 2010
Where GLVLSI
Authors Taniya Siddiqua, Sudhanva Gurumurthi
Comments (0)