Rapid development of high-performance out-of-core solvers

  • Authors:
  • Thierry Joffrain;Enrique S. Quintana-Ortí;Robert A. van de Geijn

  • Affiliations:
  • Department of Computer Sciences, The University of Texas at Austin, Austin, TX;Departamento de Ingeniería y Ciencia de Computadores, Universidad Jaume I, Castellón, Spain;Department of Computer Sciences, The University of Texas at Austin, Austin, TX

  • Venue:
  • PARA'04 Proceedings of the 7th international conference on Applied Parallel Computing: state of the Art in Scientific Computing
  • Year:
  • 2004

Quantified Score

Hi-index 0.01

Visualization

Abstract

In this paper, we discuss a more scalable OOC implementation of a dense linear system solver via LU factorization that presents numerical stability similar to that of the LU factorization with partial pivoting. Our implementation builds on the Formal Linear Algebra Methods Environment (FLAME), the Parallel Linear Algebra Package (PLAPACK), and the Parallel Out-of-Core Linear Algebra Package (POOCLAPACK) infrastructures. Experimental results on an Intel Itanium2 (R) platform demonstrate the high performance of this approach.