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IMPEDRA: IMproving Power-Efficiency for Digital processing in Radio Astronomy

Project Number: 628.002.005

Project Manager: Dr.ir André Kokkeler

Faculty of Electrical Engineering, Mathematics and Computer Science

Tel.: +31-53-4894291

Email: a.b.j.kokkeler@utwente.nl

Project website:


Power efficiency is a primary design goal in future High Performance Computing systems. We propose to exploit probabilistic- and approximate computing to improve power efficiency.
Probabilistic computing increases energy efficiency by lowering supply voltages. If supply is reduced to extremely low voltages, this comes with probabilistic behaviour of digital circuits. Approximate computing uses deterministic digital blocks to produce results that have just-enough accuracy. If it can be guaranteed that probabilistic- and approximate computing blocks have a negligible effect on astronomical measurements, parts of Radio Astronomy applications can be mapped onto these blocks to dramatically increase power efficiency.

This project has a connection with the larger DOME project.

Project duration: 2014 - 2017

Project budget: 216.6 k-€ funding

Number of person/months: 1.6 fte/year

Involved groups: Computer Architecture for Embedded Systems

CTIT Research Centre: Centre for Green ICT