Browsing by Keyword "Preconditioned conjugate gradients"

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    • closedAccess   Exploiting thread-level parallelism in the iterative solution of sparse linear systems 

      Aliaga Estellés, José Ignacio; Bollhöfer, Matthias; Martín Huertas, Alberto F.; Quintana-Orti, Enrique S. Elsevier (2011)
      We investigate the efficient iterative solution of large-scale sparse linear systems on shared-memory multiprocessors. Our parallel approach is based on a multilevel ILU preconditioner which preserves the mathematical ...

    • closedAccess   Leveraging Task-Parallelism in Energy-Efficient ILU Preconditioners 

      Aliaga Estellés, José Ignacio; Dolz, Manuel F.; Martín Huertas, Alberto F.; Mayo, Rafael; Quintana-Orti, Enrique S. Springer Berlin Heidelberg (2012)
      We analyze the energy-performance balance of a task-parallel computation of an ILU-based preconditioner for the solution of sparse linear systems on multi-core processors. In particular, we elaborate a theoretical model ...