Over-clocking of Linear Projection Designs through Device Specific Optimisations

Frequently, applications such as image and video processing rely on implementations of the Linear Projection algorithm with high throughput and low latency requirements. This work presents a framework to optimise Linear Projection designs that excel typical design implementations via a pre-characterisation of over-clocked arithmetic units. It is well known that the delay models used by synthesis tools are generic and tuned for the worst performance possible of a given fabrication process. Hence, they impose a heavy penalty in the possible maximum performance offered by the fabrication process. The proposed optimisation framework focuses on the optimisation of the generic multipliers, as they are the arithmetic operators with the most critical paths in the data path of a linear projection design, by performing a performance characterisation step on the target device. Experiments demonstrate that the proposed framework is able to generate Linear Projection designs that achieve higher throughput (up to 1.85 times) while producing less errors than typical implementation methodologies.