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Cooperative Arithmetic-Aware Approximation Techniques for Energy-Efficient Multipliers was presented by Sotirios Xydis in the 56th Annual Design Automation Conference 2019. The authors of this manuscript are  Vasileios Leon, Konstantinos Asimakopoulos, Sotirios Xydis, Dimitrios Soudris and Kiamal Pekmestzi. 3 Posters were also presented.

Cooperative Arithmetic-Aware Approximation Techniques for Energy-Efficient Multipliers Abstract:

Approximate computing appears as an emerging and promising solution for energy-efficient system designs, exploiting the inherent error-tolerant nature of various applications. In this paper, targeting multiplication circuits, i.e., the energy-hungry counterpart of hardware accelerators, an extensive exploration of the error–energy trade-off, when combining arithmetic-level approximation techniques, is performed for the first time. Arithmetic-aware approximations deliver significant energy reductions, while allowing to control the error values with discipline by setting accordingly a configuration parameter. Inspired from the promising results of prior works with one configuration parameter, we propose 5 hybrid design families for approximate and energy-friendly hardware multipliers, consisting of two independent parameters to tune the approximation levels. Interestingly, the resolution of the state-of-the-art Pareto diagram is improved, giving the flexibility to achieve better energy gains for a specific error constraint imposed by the system. Moreover, we outperform prior works in the field of approximate multipliers by up to 60% energy reduction, and thus, we define the new Pareto front.

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January 22nd, 2021

2nd place for the Ph.D. student Dimitrios Danopoulos in Xilinx Adaptive Computing Developer Contest 2020

Microlab Ph.D. student Dimitrios Danopoulos, supervised by Dr. Christoforos Kachris and Prof. Dimitrios Soudris, was awarded 2nd place prize in […]

December 16th, 2019

Ημερίδα για Διπλωματικές Εργασίες 2019-2020, 17/12/19, 16:00

Την Τρίτη 17 Δεκεμβρίου 2019 ώρα 16:00 στο Εργαστήριο Μικροϋπολογιστών & Ψηφιακών Συστημάτων, Νέα Κτίρια ΗΜΜΥ αίθουσα Β1.20 θα λάβει […]

October 21st, 2019

microlab @ NASA International Space Apps Challenge 2019

On Microlab’s initiative, NTUA ECE personnel participated in one of the two awarded teams at the NASA International Space Apps […]

October 3rd, 2019

Microlab @Researcher’s Night(REN)

Microlab participated in Researcher’s Night(REN) at 27th of September, that was held in National Technical University of Athens, bringing researchers […]

September 18th, 2019

Members of HiPEAC granted the first place in the Open Hardware Contest organized by Xilinx in 2 categories

Students Dimitris Danopoulos and George Tzanos, supervised by research associate and HiPEAC members Dr. Christoforos Kachris and Prof. Dimitrios Soudris, […]

June 12th, 2019

Konstantinos Maragos presented his PhD Thesis

Konstantinos Maragos presented his PhD thesis entitled “Exploitation of Process Variability in FPGAs Devices” Extended Abstract: Transistor scaling is one […]

June 2nd, 2019

Microlab at DAC Conference

Cooperative Arithmetic-Aware Approximation Techniques for Energy-Efficient Multipliers was presented by Sotirios Xydis in the 56th Annual Design Automation Conference 2019. […]

May 31st, 2019

SDK4ED in CEISEE 2019

A Special Session entitled “Quality Optimisation for Software Systems: Trade-offs between Runtime and Design-time Software Quality Attributes” was organized by […]

April 3rd, 2019

SDK4ED plenary meeting in Athens

The latest SDK4ED developments are discussed in our third plenary meeting in Athens! First SDK4ED ToolBoxes (Technical Debt, Energy and Dependability) […]

March 28th, 2019

Microlab at DATE Conference

Microlab participated in DATE (Design, Automation and Test in Europe) Conference! DMRM: Distributed Market-Based Resource Management of Edge Computing Systems […]