Abstract
Developers need to be able to write code using high-level, reusable black-box components. Also essential is confidence that code can be mapped to an efficient implementation on the available hardware, with robust high performance. In this paper we present a prototype component library being developed to deliver this for industrial visual effects applications. Components are based on abstract algorithmic skeletons that provide metadata characterizing data accesses and dependence constraints. Metadata is combined at run-time to build a polytope representation which supports aggressive inter-component loop fusion. We present results for a wavelet-transform-based degraining filter running on multicore PC hardware, demonstrating 3.4x–5.3x speed-ups, improved parallel efficiency and a 30% reduction in memory consumption without compromising the program structure.
This work was partly funded by the EPSRC (ref EP/E002412).
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Cornwall, J.L.T., Kelly, P.H.J., Parsonage, P., Nicoletti, B. (2008). Explicit Dependence Metadata in an Active Visual Effects Library. In: Adve, V., Garzarán, M.J., Petersen, P. (eds) Languages and Compilers for Parallel Computing. LCPC 2007. Lecture Notes in Computer Science, vol 5234. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-85261-2_12
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