A computational experiment with low-cost heuristics for profile reduction

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  • Presentation type: Trabalho completo (oral)
  • Track: 19. TAG – Teoria e Algoritmos em Grafos
  • Keywords: Profile reduction; Sparse matrices; Reordering algorithms;
  • 1 Universidade Federal de Lavras
  • 2 Universidade Federal de Lavras - Departamento de Ciência da Computação

A computational experiment with low-cost heuristics for profile reduction

Sanderson L. Gonzaga de Oliveira

Universidade Federal de Lavras - Departamento de Ciência da Computação

Abstract

Previous publications reviewed methods that compute symmetric permutations to reduce the profile of sparse matrices. Based on this experience, this paper, with the support of extensive experiments, evaluates six low-cost heuristics for profile reduction. The heuristics evaluated are Sloan's algorithm and five variants of this method. Among the algorithms appraised, the Hu-Scott and MPG algorithms yielded the highest number of best profile results when applied to symmetric and nonsymmetric sparsity patterns, respectively.

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