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- Juan Carlos Pichel, Dora Blanco Heras, JosÃ© Carlos Cabaleiro, Francisco F. Rivera
- 12th Euromicro Conference on Parallelâ€¦
- 2004

We extend a model of locality and the subsequent process of locality improvement previously developed for the case of sparse algebra codes in monoprocessors to the case of NUMA shared memoryâ€¦ (More)

- JosÃ© Manuel AbuÃn, Juan Carlos Pichel, TomÃ¡s F. Pena, Jorge Amigo
- Bioinformatics
- 2015

UNLABELLED
BigBWA is a new tool that uses the Big Data technology Hadoop to boost the performance of the Burrows-Wheeler aligner (BWA). Important reductions in the execution times were observed whenâ€¦ (More)

- Juan Carlos Pichel, Dora Blanco Heras, JosÃ© Carlos Cabaleiro, Francisco F. Rivera
- Parallel Computing
- 2005

The combination of techniques based on reordering data with classic code restructuring techniques for increasing the locality in the execution of sparse algebra codes is studied in this paper. Theâ€¦ (More)

- Marcos FernÃ¡ndez, Juan Carlos Pichel, JosÃ© Carlos Cabaleiro, TomÃ¡s F. Pena
- J. Comput. Science
- 2016

In this work we introduce a new Statistical Machine Translation (SMT) system whose main objective is to reduce the translation times exploiting efficiently the computing power of the currentâ€¦ (More)

- Juan Carlos Pichel, David E. Singh, Francisco F. Rivera
- Pattern Recognition Letters
- 2006

In this paper a heuristic segmentation algorithm is presented based on the oversegmentation of an image. The method uses a set of different segmentations of the image produced previously by standardâ€¦ (More)

- Juan Carlos Pichel, David E. Singh, JesÃºs Carretero
- 2008 10th IEEE International Conference on Highâ€¦
- 2008

In order to efficiently exploit available parallelism, multicore processors must address contention for shared resources as cache hierarchy. This fact becomes even more important when irregular codesâ€¦ (More)

- Juan Carlos Pichel, Francisco F. Rivera, Marcos FernÃ¡ndez, Aurelio Rodriguez
- Microprocessors and Microsystems - Embeddedâ€¦
- 2012

It is well-known that reordering techniques applied to sparse matrices are common strategies to improve the performance of sparse matrix operations, and particularly, the sparse matrix vectorâ€¦ (More)

- JosÃ© Manuel AbuÃn, Juan Carlos Pichel, TomÃ¡s F. Pena, Jorge Amigo
- PloS one
- 2016

Next-generation sequencing (NGS) technologies have led to a huge amount of genomic data that need to be analyzed and interpreted. This fact has a huge impact on the DNA sequence alignment process,â€¦ (More)

- Juan Carlos Pichel, Dora Blanco Heras, JosÃ© Carlos Cabaleiro, Francisco F. Rivera
- Concurrency and Computation: Practice andâ€¦
- 2009

In this paper the problem of the locality of sparse algebra codes on simultaneous multithreading architectures is studied. In this kind of architectures many hardware structures are dynamicallyâ€¦ (More)

This paper presents Locality-Aware Two-Phase (LATP) I/O, an optimization of the Two-Phase collective I/O technique from ROMIO, the most popular MPI-IO implementation. In order to increase theâ€¦ (More)