SCHEDULE: NOV 12-18, 2011

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A Portable Implementation of the Integral Histogram in StarSs

SESSION: Research Poster Reception

EVENT TYPE: ACM Student Research Competition Poster, Poster, Electronic Poster

TIME: 5:15PM - 7:00PM

SESSION CHAIR: Bernd Mohr

AUTHOR(S):pieter bellens

ROOM:WSCC North Galleria 2nd/3rd Floors

ABSTRACT:
Parallel programming models converge on key concepts. Program syntax avoids explicitly parallel constructs like threads and data dependence guides the computation, as opposed to resource-centric models like MPI or OpenMP. Aside from StarSs, StarPU and recently the MAGMA and PLASMA projects encapsulate computation on data blocks in tasks. These are scheduled dynamically via a TDG. We intent to demonstrate the use of StarSs in the development of the Integral Histogram (IH) and analyze the application on SMP, Cell/B.E. and GPU. As opposed to the applications for StarPU, MAGMA and PLASMA, which so far have been limited to numerical linear algebra kernels. IH is a recently proposed preprocessing technique that constructs the histogram for rectangular regions in constant time (for e.g. object recognition, content-based image retrieval, segmentation, detection and tracking). To the best of our knowledge, IH in StarSs is the first parallel implementation of this algorithm in the literature.

Chair/Author Details:

Bernd Mohr (Chair) - Juelich Supercomputing Centre

pieter bellens - BSC

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