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- Peter Benner, Pablo Ezzatti, Daniel Kressner, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- Parallel Computing
- 2011

We describe a hybrid Lyapunov solver based on the matrix sign function that accelerates the intensive parts of the computation using a graphics processor (GPU) while executing the remainingâ€¦ (More)

- Peter Benner, Pablo Ezzatti, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- Euro-Par Workshops
- 2009

We investigate the performance of two approaches for matrix inversion based on Gaussian (LU factorization) and Gauss-Jordan eliminations. The target architecture is a current general-purposeâ€¦ (More)

- Pablo Ezzatti, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- 2011 19th International Euromicro Conference onâ€¦
- 2011

Inversion of large-scale matrices appears in a few scientific applications like model reduction or optimal control. Matrix inversion requires an important computational effort and, therefore, theâ€¦ (More)

- Nicolas Soca, Jose Luis Blengio, MartÃn Pedemonte, Pablo Ezzatti
- IEEE Congress on Evolutionary Computation
- 2010

Metaheuristics are used for solving optimization problems since they are able to compute near optimal solutions in reasonable times. However, solving large instances it may pose a challenge even forâ€¦ (More)

- Pablo Ezzatti, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- The Journal of Supercomputing
- 2011

We study the use of massively parallel architectures for computing a matrix inverse. Two different algorithms are reviewed, the traditional approach based on Gaussian elimination and the Gaussâ€“Jordanâ€¦ (More)

- Peter Benner, Pablo Ezzatti, Hermann Mena, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- Algorithms
- 2013

We address the numerical solution of Lyapunov, algebraic and differential Riccati equations, via the matrix sign function, on platforms equipped with general-purpose multicore processors and,â€¦ (More)

- Peter Benner, Pablo Ezzatti, Enrique S. Quintana-OrtÃ, Alfredo RemÃ³n
- ICA3PP
- 2013

- Peter Benner, Enrique S. Quintana-OrtÃ, Pablo Ezzatti, Alfredo RemÃ³n
- 2011 International Conference on High Performanceâ€¦
- 2011

We introduce high performance codes for the inversion of a symmetric positive definite matrix. Two alternativesare studied and evaluated, the traditional approach based onthe Cholesky factorizationâ€¦ (More)

- JosÃ© Ignacio Aliaga, Rosa M. Badia, +4 authors Enrique S. Quintana-OrtÃ
- Parallel Computing
- 2016

We present specialized implementations of the preconditioned iterative linear system solver in ILUPACK for Non-Uniform Memory Access (NUMA) platforms and many-core hardware co-processors based on theâ€¦ (More)