Concept

Dynamic frequency scaling

Publications associées (163)

A multiresolution space-time adaptive scheme for the bidomain model in electrocardiology

The bidomain model of electrical activity of myocardial tissue consists of a possibly degenerate parabolic PDE coupled with an elliptic PDE for the transmembrane and extracellular potentials, respectively. This system of two scalar PDEs is supplemented by ...

Wiley-Blackwell2010

TurboTag: Lookup Filtering to Reduce Coherence Directory Power

Babak Falsafi, Michael Ferdman, Pejman Lotfi Kamran, Daniel Crisan

On-chip coherence directories of today’s multi-core systems are not energy efficient. Coherence directories dissipate a significant fraction of their power on unnecessary lookups when running commercial server and scientific workloads. These workloads have ...

ACM2010

Fuzzy Control for Enforcing Energy Efficiency in High-Performance 3D Systems

David Atienza Alonso, Mohamed Mostafa Sabry Aly, Ayse Kivilcim Coskun

3D stacked circuits reduce communication delay in multicore system-on-chips (SoCs) and enable heterogeneous integration of cores, memories, sensors, and RF devices. However, vertical integration of layers exacerbates the reliability and thermal problems, a ...

IEEE Press2010

Subthreshold Current-Mode Delta-Sigma Quantizer with 3-Decade Scalable Sampling Rate and pico-Ampere Range Resolution

Seyed Armin Tajalli, Yusuf Leblebici

A current-mode

\Delta\Sigma

analog-to-digital data converter (ADC) for biomedical readout front-end systems is being presented. The core of this circuit is a current-controlled ring oscillator (CCO) whose oscillation frequency is proportional to the inpu ...

2010

Emulation-Based Transient Thermal Modeling of 2D/3D Systems-on-Chip with Active Cooling

David Atienza Alonso

New tendencies envisage 2D and 3D Multi-Processor Systems-On-Chip (MPSoCs) as a promising solution for the consumer electronics market. MPSoCs are complex to design, as they must execute multiple applications (games, video), while meeting additional design ...

IEEE Press2009

ReSim, a Trace-Driven, Reconfigurable ILP Processor Simulator

Dionysios Pnevmatikatos, Sotiria Fytraki

Modern processors are becoming more complex and as features and application size increase, their evaluation is becoming more time-consuming. To date, design space exploration relies on extensive use of software simulation that when highly accurate is slow. ...

2009

A Current Sensing Completion Detection Method for Asynchronous Pipelines Operating In the Sub-threshold Regime

Yusuf Leblebici, Omer Can Akgun

Digital circuits operating in the sub-threshold regime are able to perform minimum energy operation at a given delay. In the sub-threshold regime the circuit delay, and hence, the leakage energy consumption depend on the supply voltage exponentially. By re ...

2009

High-efficiency dynamic supply CMOS audio power amplifier for low-power applications

Maher Kayal, Marc Pastre

This paper describes the analysis and design of a dynamic supply CMOS audio power amplifier for low-power applications. The dynamic supply technique is used to increase the efficiency of a class AB power amplifier. The polarization of its output stage is a ...

2009

Dynamic Thermal Management in 3D Multicore Architectures

David Atienza Alonso, Yusuf Leblebici, José Luis Ayala Rodrigo, Ayse Kivilcim Coskun

Technology scaling has caused the feature sizes to shrink continuously, whereas interconnects, unlike transistors, have not followed the same trend. Designing 3D stack architectures is a recently proposed approach to overcome the power consumption and dela ...

IEEE and ACM2009

Dynamic thermal management in 3D multicore architectures

David Atienza Alonso, Yusuf Leblebici, Ayse Kivilcim Coskun

2009

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Subthreshold Current-Mode Delta-Sigma Quantizer with 3-Decade Scalable Sampling Rate and pico-Ampere Range Resolution

Seyed Armin Tajalli, Yusuf Leblebici

A current-mode

\Delta\Sigma

2010