R. de la Cruz

ORCID: 0000-0002-2805-3417
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About
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Research Areas
  • Parallel Computing and Optimization Techniques
  • Advanced Data Storage Technologies
  • Distributed and Parallel Computing Systems
  • Advanced Numerical Methods in Computational Mathematics
  • Computational Fluid Dynamics and Aerodynamics
  • Cloud Computing and Resource Management
  • Seismic Imaging and Inversion Techniques
  • Radiation Effects in Electronics
  • Medical Imaging Techniques and Applications
  • Meteorological Phenomena and Simulations
  • Advanced Neural Network Applications
  • Interconnection Networks and Systems
  • Ophthalmology and Eye Disorders
  • Ocular Surface and Contact Lens
  • Bacterial Infections and Vaccines
  • Scientific Computing and Data Management
  • Network Packet Processing and Optimization
  • Dialysis and Renal Disease Management
  • Streptococcal Infections and Treatments
  • Central Venous Catheters and Hemodialysis
  • Media and Digital Communication
  • Urticaria and Related Conditions
  • Matrix Theory and Algorithms
  • Fetal and Pediatric Neurological Disorders
  • Numerical methods for differential equations

Chalmers University of Technology
2020

Universitat Politècnica de Catalunya
2007-2016

Barcelona Supercomputing Center
2007-2016

Hospital Universitario Fundación Alcorcón
2009-2016

Boston Children's Hospital
1989

The stable propagation of jets in FRII sources is remarkable if one takes into account that large-scale are subjected to potentially highly disruptive three-dimensional (3D) Kelvin-Helmholtz instabilities. Numerical simulations can address this problem and help clarify the causes stability. Following previous studies stability relativistic flows two dimensions (2D), it our aim test extend conclusions such works three dimensions. We present numerical for study properties 3D, sheared, flows....

10.1051/0004-6361/200913012 article EN Astronomy and Astrophysics 2010-05-26

Reverse-Time Migration (RTM) is a state-of-the-art technique in seismic acoustic imaging, because of the quality and integrity images it provides. Oil gas companies trust RTM with crucial decisions on multi-million-dollar drilling investments. But requires vastly more computational power than its predecessor techniques, this has somewhat hindered practical success. On other hand, despite multi-core architectures promise to deliver unprecedented power, little attention been devoted mapping...

10.1155/2009/382638 article EN Scientific Programming 2009-01-01

Finite Difference (FD) is a widely used method to solve Partial Differential Equations (PDE). PDEs are the core of many simulations in different scientific fields, such as geophysics, astrophysics, etc. The typical FD solver performs stencil computations for entire computational domain, thus solving differential operators. In general terms, computation consists weighted accumulation contribution neighbor points along cartesian axis. Therefore, optimizing crucial reducing application...

10.1145/2591006 article EN ACM Transactions on Mathematical Software 2014-04-01

3D stencil computations are compute-intensive kernels often appearing in high-performance scientific and engineering applications. The key to efficiency these memory-bound is full exploitation of data reuse. This paper explores the design aspects for 3D-Stencil implementations that maximize reuse all input on a FPGA architecture. work focuses architectural stencils with form n × (n + 1) n, where = {2, 4, 6, 8, ...}. performance architecture evaluated using two approaches, ¿Multi-Volume¿...

10.1109/fpt.2009.5377644 article EN 2009-12-01

It is crucial to optimize stencil computations since they are the core (and most computational demanding segment) of many Scientific Computing applications, therefore reducing overall execution time. This not a simple task, actually it lengthy and tedious. because large number optimizations combinations test, which might consume days computing time, process tedious due slightly different versions code implement. Alternatively, models that predict performance can be built without any actual...

10.1016/j.procs.2011.04.235 article EN Procedia Computer Science 2011-01-01

LEGaTO is a three-year EU H2020 project which started in December 2017. The will leverage task-based programming models to provide software ecosystem for Made-in-Europe heterogeneous hardware composed of CPUs, GPUs, FPGAs and dataflow engines. aim attain one order magnitude energy savings from the edge converged cloud/HPC.

10.1145/3203217.3205339 article EN 2018-05-08

Reverse Time Migration (RTM) has become the latest chapter in seismic imaging for geologically complex subsurface areas. In particular proven to be very useful subsaly oil plays of US Gulf Mexico. However, RTM cannot applied extensively due extreme computational demand. The recent availability multi‐core processors, homogeneous and heterogeneous, may provide required compute power. this paper, we benchmark an effective algorithm on several HPC platforms assess viability hardware.

10.1190/1.3063944 article EN 2008-01-01

LEGaTO is a three-year EU H2020 project which started in December 2017. The will leverage task-based programming models to provide software ecosystem for Made-in-Europe heterogeneous hardware composed of CPUs, GPUs, FPGAs and dataflow engines. aim attain one order magnitude energy savings from the edge converged cloud/HPC.

10.1145/3229631.3239370 article EN 2018-07-15

The LEGaTO project leverages task-based programming models to provide a software ecosystem for Made in-Europe heterogeneous hardware composed of CPUs, GPUs, FPGAs and dataflow engines. aim is attain one order magnitude energy savings from the edge converged cloud/HPC, balanced with security resilience challenges. an ongoing three-year EU H2020 started in December 2017.

10.23919/date48585.2020.9116362 preprint EN Design, Automation & Test in Europe Conference & Exhibition (DATE), 2015 2020-03-01

An infected aortic aneurysm is a process with high mortality rate. Survival dependent on an early diagnosis and surgical management. This case report details rare presentation of aortitis persistent methicillin-sensitive Staphylococcus aureus (MSSA) bacteremia, which initially presented as retroperitoneal fibrosis was ultimately fatal.

10.1016/j.idcr.2016.07.010 article EN cc-by-nc-nd IDCases 2016-01-01

ch, on the other hand, is around the<br>corner. Seismic Imaging definitively a field in our industry where petascale capacity is<br>needed. The question not when this will be widely available, but how. There are<br>several hardware processors and devices as candidates for brain of new generation of<br>petascale supercomputers. only thing common that all them are difficult to<br>program, programming different from today’s x86<br>processor generation. We...

10.3997/2214-4609.201405034 article EN 2008-01-01

Quantum control of the four-wave mixing produced by two-color $\ensuremath{\omega}\text{\ensuremath{-}}3\ensuremath{\omega}$ femtosecond laser pulses propagating in a two-level system is accomplished varying relative phase between two pulses. The sensitivity spectral $5\ensuremath{\omega}$ anti-Stokes component cancelled when ac Stark shift $\ensuremath{\omega}$ and $3\ensuremath{\omega}$ compensated. We apply perturbation theory provide simple analytical formulas for phase-sensitivity...

10.1103/physreva.75.013819 article EN Physical Review A 2007-01-30

Indirect addressing is known for being slow on conventional architectures, due to the extra step of gathering data before computations can be done. There have been proposed many methods optimizing indirect addressing. However, these almost exclusively, merely try change order in which accessed, so as better utilize cache. Furthermore, vector instructions not used, since accessed continuously, and therefore valuable processing power exploited. The Cell/B.E. architecture has multiple powerful...

10.1109/sc.2010.24 article EN 2010-11-01
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