RT info:eu-repo/semantics/article T1 Extending a hierarchical tiling arrays library to support sparse data partitioning A1 Fresno, Javier A1 González Escribano, Arturo A1 Llanos Ferraris, Diego Rafael K1 Informática K1 Data partition K1 Layouts K1 Distributed computing K1 sparse data K1 1203 Ciencia de Los Ordenadores K1 3304 Tecnología de Los Ordenadores AB Layout methods for dense and sparse data are often seen as two separate problems with their own particular techniques. However, they are based on the same basic concepts. This paper studies how to integrate automatic data-layout and partition techniques for both dense and sparse data structures. In particular, we show how to include support for sparse matrices or graphs in Hitmap, a library for hierarchical tiling and automatic mapping of arrays. The paper shows that it is possible to offer a unique interface to work with both dense and sparse data structures. Thus, the programmer can use a single and homogeneous programming style, reducing the development effort and simplifying the use of sparse data structures in parallel computations. Our experimental evaluation shows that this integration of techniques can be effectively done without compromising performance. PB Springer SN 0920-8542 YR 2012 FD 2012 LK https://uvadoc.uva.es/handle/10324/70436 UL https://uvadoc.uva.es/handle/10324/70436 LA eng NO The Journal of Supercomputing, Vol. 64, no. 1, April 2013, pags. 59-68. NO Producción Científica DS UVaDOC RD 14-oct-2024