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David Atienza Alonso

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Publications associées (385)

Thermal-Aware Data Flow Analysis

David Atienza Alonso, Philip Brisk, José Luis Ayala Rodrigo

IEEE Press2009

Inducing Thermal-Awareness in Multicore Systems Using Networks-on-Chip

David Atienza Alonso

Technology scaling imposes an ever increasing temperature stress on digital circuit design due to transistor density, especially on highly integrated systems, such as Multi- Processor Systems-on-Chip (MPSoCs). Therefore, temperature-aware design is mandato ...

IEEE Computer Society2009

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

Minimization of the reconfiguration latency for the mapping of applications on FPGA-based systems

David Atienza Alonso, Luca Benini, Srinivasan Murali

Field-Programmable Gate Arrays (FPGAs) have become promising mapping fabric for the implementation of System-on-Chip (SoC) platforms, due to their large capacity and their enhanced support for dynamic and partial reconfigurability. Design automation suppor ...

IEEE Press2009

Run-Time Mapping for Dynamically-Added Applications in Reconfigurable Embedded Systems

David Atienza Alonso, Ivan Beretta

The increasing popularity of multi-core System-on-Chip platforms introduces new challenges, both in terms of hardware platforms and design methodologies. Dynamic reconfiguration can be exploited to increase the flexibility of the system and to implement mu ...

IEEE Press2009

A Parallel Evolutionary Algorithm to Optimize Dynamic Data Types in Embedded Systems

David Atienza Alonso, José Luis Risco Martin

New multimedia embedded applications are increasingly dynamic, and rely on dynamically-allocated data types (DDTs) to store their data. The optimization of DDTs for each target embedded system is a time-consuming process due to the large searching space of ...

2008

Thermal Balancing Policy for Streaming Computing on Multiprocessor Architectures

Giovanni De Micheli, David Atienza Alonso, Luca Benini

As feature sizes decrease, power dissipation and heat generation density exponentially increase. Thus, temperature gradients in Multiprocessor Systems on Chip (MPSoCs) can seriously impact system performance and reliability. Thermal balancing policies base ...

2008

Method to manage the load of peripheral elements within a multicore system

Giovanni De Micheli, David Atienza Alonso, Federico Angiolini

The aim of the present invention is to propose a method to provide reliability, power management and load balancing support for multicore systems based on Networks- on-Chip (NoCs) as well as a way to efficiently implement architectural support for this met ...

2008

Programmable Logic Circuits based on Ambipolar CNFET

Yusuf Leblebici, Giovanni De Micheli, David Atienza Alonso, Mohamed Haykel Ben Jamaa

Recently, it was demonstrated that the polarity of carbon nanotube field effect transistors can be electrically controlled. In this paper we show how Programmable Logic Arrays (PLA) can be built out of these devices, and we illustrate how they outperform u ...

2008

Stochastic Modeling and Analysis for Environmentally Powered Wireless Sensor Nodes

Giovanni De Micheli, Alexandru Emilian Susu, David Atienza Alonso

Environmental energy is becoming a feasible alternative for many low-power systems, such as wireless sensor nodes. Designing an environmentally powered device faces several challenges: choosing the exact type of the energy harvester, the energy storage ele ...

IEEE Press2008

Prospects for logic-on-a-wire

Didier Bouvet, Yusuf Leblebici, Mihai Adrian Ionescu, Kirsten Emilie Moselund, Giovanni De Micheli, David Atienza Alonso, Mohamed Haykel Ben Jamaa

In this paper we present the top-down fabrication of gate-all-around (GAA) and body-tied @W-gate devices by a combination of etching and oxidation steps resulting in a local silicon-on-insulator structure. The GAA has advantages in terms of enhanced curren ...

2008

Register File Reliability Analysis Through Cycle-Accurate Thermal Emulation

David Atienza Alonso, Pablo Garcia del Valle, José Luis Ayala Rodrigo

Continuous transistor scaling due to improvements in CMOS devices and manufacturing technologies is increasing processor power densities and temperatures; thus, creating challenges when trying to maintain manufacturing yield rates and devices which will be ...

IEEE Computer Society2008

Reliability-Aware Design for Nanometer-Scale Devices

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle, José Luis Ayala Rodrigo

Continuous transistor scaling due to improvements in CMOS devices and manufacturing technologies is increasing processor power densities and temperatures; thus, creating challenges to maintain manufacturing yield rates and reliable devices in their expecte ...

2008

HW-SW Emulation Framework for Temperature-Aware Design in MPSoCs

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Roman Hermida Correa

New tendencies envisage 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 constrain ...

2008

OS-Based Sensor Node Platform and Energy Estimation Model for Health-Care Wireless Sensor Networks

Giovanni De Micheli, David Atienza Alonso, Francisco Javier Rincon Vallejos

Accurate power and performance figures are critical to assess the effective design of possible sensor node architectures in Body Area Networks (BANs) since they operate on limited energy storage. Therefore, accurate power models and simulation tools that c ...

2008

Network-On-Chip Design and Synthesis Outlook

Giovanni De Micheli, David Atienza Alonso, Federico Angiolini, Luca Benini, Srinivasan Murali

With the growing complexity in consumer embedded products, new tendencies forecast heterogeneous Multi-Processor Systems-On-Chip (MPSoCs) consisting of complex integrated components communicating with each other at very high-speed rates. Intercommunication ...

2008

Variability-Aware Design of Multilevel Logic Decoders for Nanoscale Crossbar Memories

Didier Bouvet, Yusuf Leblebici, Mihai Adrian Ionescu, Kirsten Emilie Moselund, Giovanni De Micheli, David Atienza Alonso, Mohamed Haykel Ben Jamaa

The fabrication of crossbar memories with sublithographic features is expected to be feasible within several emerging technologies; in all of them, the nanowire (NW) decoder is a critical part since it bridges the sublithographic wires to the outer circuit ...

2008

Temperature Control of High Performance Multicore Platforms Using Convex Optimization

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Srinivasan Murali

With technology advances, the number of cores integrated on a chip and their speed of operation is increasing. This, in turn is leading to a significant increase in chip temperature. Temperature gradi- ents and hot-spots not only affect the performance of ...

2008

Joint Hardware-Software Leakage Minimization Approach for the Register File of VLIW Embedded Architectures

Giovanni De Micheli, David Atienza Alonso, José Luis Ayala Rodrigo

New applications demand very high processing power when run on embedded systems. Very Long Instruction Word (VLIW) architectures have emerged as a promising alternative to provide such processing capabilities under the given energy budget. However, in this ...

2008

A Simulation Model for Wireless Sensor Networks Based on TOSSIM

Giovanni De Micheli, Alexandru Emilian Susu, David Atienza Alonso, Francisco Javier Rincon Vallejos

Wireless Sensor Networks (WSNs) are composed of a large number of very small devices used for biomedical or environmental monitoring applications. These devices measure various natural processes at different locations, and cooperate in order to aggregate t ...

IMSE2007

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