A 65 nm 2-billion transistor quad-core Itanium processor

B Stackhouse, S Bhimji, C Bostak… - IEEE Journal of Solid …, 2008 - ieeexplore.ieee.org
This paper describes an Itanium processor implemented in 65 nm process with 8 layers of
Cu interconnect. The 21.5 mm by 32.5 mm die has 2.05 B transistors. The processor has four …

Safe limits on voltage reduction efficiency in GPUs: A direct measurement approach

J Leng, A Buyuktosunoglu, R Bertran, P Bose… - Proceedings of the 48th …, 2015 - dl.acm.org
Energy efficiency of GPU architectures has emerged as an important aspect of computer
system design. In this paper, we explore the energy benefits of reducing the GPU chip's …

Adaptive guardband scheduling to improve system-level efficiency of the POWER7+

Y Zu, CR Lefurgy, J Leng, M Halpern… - Proceedings of the 48th …, 2015 - dl.acm.org
The traditional guardbanding approach to ensure processor reliability is becoming obsolete
because it always over-provisions voltage and wastes a lot of energy. As a next-generation …

GPU voltage noise: Characterization and hierarchical smoothing of spatial and temporal voltage noise interference in GPU architectures

J Leng, Y Zu, VJ Reddi - 2015 IEEE 21st International …, 2015 - ieeexplore.ieee.org
Energy efficiency is undoubtedly important for GPU architectures. Besides the traditionally
explored energy-efficiency optimization techniques, exploiting the supply voltage guard …

Pipeline muffling and a priori current ram**: architectural techniques to reduce high-frequency inductive noise

MD Powell, TN Vijaykumar - … of the 2003 international symposium on …, 2003 - dl.acm.org
While circuit and package designers have addressed microprocessor inductive noise issues
in the past, multi-gigahertz clock frequencies and billion-transistor-level integration are …

[BUCH][B] On and off-chip crosstalk avoidance in VLSI design

C Duan, BJ LaMeres, SP Khatri - 2010 - Springer
One of the greatest challenges in Deep Sub-Micron (DSM) design is inter-wire crosstalk,
which becomes significant with shrinking feature sizes of VLSI fabrication processes and …

Quantifying the relationship between the power delivery network and architectural policies in a 3D-stacked memory device

M Shevgoor, JS Kim, N Chatterjee… - Proceedings of the 46th …, 2013 - dl.acm.org
Many of the pins on a modern chip are used for power delivery. If fewer pins were used to
supply the same current, the wires and pins used for power delivery would have to carry …

GPUVolt: Modeling and characterizing voltage noise in GPU architectures

J Leng, Y Zu, M Rhu, M Gupta, VJ Reddi - Proceedings of the 2014 …, 2014 - dl.acm.org
Voltage noise is a major obstacle in improving processor energy efficiency because it
necessitates large operating voltage guardbands that increase overall power consumption …

Exploiting resonant behavior to reduce inductive noise

MD Powell, TN Vijaykumar - ACM SIGARCH Computer Architecture …, 2004 - dl.acm.org
Inductive noise in high-performance microprocessors is a reliabilityissue caused by
variations in processor current (di/dt) which are converted to supply-voltage glitches by …

Back to the future: Current-mode processor in the era of deeply scaled CMOS

Y Bai, Y Song, MN Bojnordi, A Shapiro… - … Transactions on Very …, 2015 - ieeexplore.ieee.org
This paper explores the use of MOS current-mode logic (MCML) as a fast and low noise
alternative to static CMOS circuits in microprocessors, thereby improving the performance …