Quantitative evaluation of three reconfiguration strategies on FPGAs: a case study

Reconfigurable computing is becoming an important new alternative for implementing computations. Field programmable gate arrays (FPGAs) are the ideal integrated circuit technology to experiment with the potential benefits of using different strategies of circuit specialization by reconfiguration. The final form of the reconfiguration strategy is often non-trivial to determine. Consequently, in this paper, we examine strategies for reconfiguration and, based on our experience, propose general guidelines for the tradeoffs using an area-time metric called functional density. Three experiments are set up to explore different reconfiguration strategies for FPGAs applied to a systolic implementation of a scalar quantizer used as a case study. Quantitative results for each experiment are given. The regular nature of the example means that the results can be generalized to a wide class of industry-relevant problems based on arrays.

Can the state empower communities through localism? An evaluation of recent approaches to neighbourhood governance in England

‘Empowerment’ is a term much used by policy-makers with an interest in improving service delivery and promoting different forms of neighbourhood governance. But the term is ambiguous and has no generally accepted definition. Indeed, there is a growing paradox between the rhetoric of community empowerment and an apparent shift towards increased centralisation of power away from the neighbourhood in developed economies. This article explores the literature relating to empowerment and identifies two broad conceptions which reflect different emphases on neo-liberalism. It goes on to discuss two models illustrating different levels of state intervention at the neighbourhood level and sets out evidence from two neighbourhood councils in Milton Keynes in central England. In conclusion, it is argued that those initiatives which are top-down, state-led policy initiatives tend to result in the least empowerment (as defined by government), whereas the bottom-up, self-help projects, which may be partly state-enabled, at least provide an opportunity to create the spaces where there is some potential for varying degrees of transformation. Further empirical research is needed to test how far localist responses can challenge constraints on empowerment imposed by neo-liberalism.

Engaging local communities in neighbourhood regeneration in England: an evaluation of aims, objectives and outcomes

This chapter reviews the different approaches to engaging local communities in neighbourhood regeneration over time and concludes with a discussion of the implications of the Localism Act 2011.