Browsing by Subject "Ordinadors paral·lels"
Now showing items 1-20 of 26
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A Jacobi-based algorithm for computing symmetric eigenvalues and eigenvectors in a two-dimensional mesh
(Institute of Electrical and Electronics Engineers (IEEE), 1998)
Conference report
Open AccessThe paper proposes an algorithm for computing symmetric eigenvalues and eigenvectors that uses a one-sided Jacobi approach and is targeted to a multicomputer in which nodes can be arranged as a two-dimensional mesh with ... -
A parallel Monte Carlo method for solving electromagnetic scattering in clusters of dielectric objects
(Elsevier, 2022-08-15)
Article
Open AccessIn this work, we develop a novel Monte Carlo method for solving the electromagnetic scattering problem for clusters of photonic particles. The method is based on a formal solution of the scattering problem as a modified ... -
A vector-µSIMD-VLIW architecture for multimedia applications
(Institute of Electrical and Electronics Engineers (IEEE), 2005)
Conference report
Open AccessMedia processing has motivated strong changes in the focus and design of processors. These applications are composed of heterogeneous regions of code, some of them with high levels of DLP and other ones with only modest ... -
Advanced study for the numerical resolution of the Navier-Stokes equations. Applications to mass transport phenomena and combustion modelling with parallel programming
(Universitat Politècnica de Catalunya, 2022-06-27)
Master thesis
Open AccessThe present thesis consists on the computational study and development of a 3D reactive flows solver. The main objective is the creation of C++ programming codes able to simulate the combustion chemical reactions. To do ... -
Aplicació per fer consultes de cubs de dades usant MapReduce
(Universitat Politècnica de Catalunya, 2011-06-28)
Master thesis (pre-Bologna period)
Open AccessCatalà: L'objectiu d'aquest projecte és implementar un sistema ETL per treballar amb cubs de dades. És a dir, un sistema per a fer consultes sobre un cub de dades a través dels valors de les seves dimensions. La seva ... -
Automatic evaluation of the computation structure of parallel applications
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
Conference report
Restricted access - publisher's policyMany data mining techniques have been proposed for parallel applications performance analysis, the most inter- esting being clustering analysis. Most cases have been used to detect processors with similar behavior. In ... -
Automatic exploration of potential parallelism in sequential applications
(Springer, 2014)
Conference report
Restricted access - publisher's policyThe multicore era has increased the need for highly parallel software. Since automatic parallelization turned out ineffective for many production codes, the community hopes for the development of tools that may assist ... -
Balancing HPC applications through smart allocation of resources in MT processors
(Institute of Electrical and Electronics Engineers (IEEE), 2008)
Conference report
Open AccessMany studies have shown that load imbalancing causes significant performance degradation in High Performance Computing (HPC) applications. Nowadays, Multi-Threaded (MT1) processors are widely used in HPC for their good ... -
Cardinality Estimation in Shared-Nothing Parallel Dataflow Engines
(Universitat Politècnica de Catalunya, 2015-07-31)
Master thesis
Open AccessShared nothing parallel data ow systems aim to bridge the gap between MapReduce and RDBMSs by combining parallel execution of second order functions with operator based optimizations. In parallel systems, job latency ... -
Characterizing and improving the performance of many-core task-based parallel programming runtimes
(2017)
Conference report
Restricted access - publisher's policyParallel task-based programming models like OpenMP support the declaration of task data dependences. This information is used to delay the task execution until the task data is available. The dependences between tasks are ... -
Comparativa entre MapReduce i Spark
(Universitat Politècnica de Catalunya, 2021-06-29)
Bachelor thesis
Open AccessDonada la quantitat de dades disponible actualment, i a causa del seu creixement exponencial, ha sorgit la necessitat d'analitzar aquestes dades per tal que les organitzacions tant públiques com privades puguin extreure ... -
Computing methods for parallel processing and analysis on complex networks
(Universitat Politècnica de Catalunya, 2015-05-05)
Master thesis
Open AccessNowadays to solve some problems is required to model complex systems to simulate and understand its behavior. A good example of one of those complex systems is the Facebook Social Network, this system represents people ... -
Disseny d'un servei de computació paral·lela i distribuïda
(Universitat Politècnica de Catalunya, 2018-07)
Bachelor thesis
Open AccessL'objecte d'aquest treball és explorar i experimentar amb la programació paral.lela en clústers de computadors. Aquest model de programació és, segurament, un dels que ha resultat més fructífer. El treball inclou una ... -
Disseny i desenvolupament d'una interfície gràfica d'usuari per a un simulador demogràfic en entorns paral·lels
(Universitat Politècnica de Catalunya, 2013-06-19)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
From high-level languages to dataflow circuits
(Universitat Politècnica de Catalunya, 2019-07)
Bachelor thesis
Open AccessLa manera tradicional de computar alguna cosa és creant software que es pot executar en la unitat de processament central (CPU) d'un processador. El problema és que una CPU no té la capacitat de còmput suficient per executar ... -
Increasing the number of strides for conflict-free vector access
(1992-05)
Article
Open AccessAddress transformation schemes, such as skewing and linear transformations, have been proposed to achieve conflict-free vector access for some strides in vector processors with multi-module memories. In this paper, we ... -
MPI layer techniques to improve network energy efficiency
(Universitat Politècnica de Catalunya, 2015-12-10)
Doctoral thesis
Open AccessInterconnection networks represent the backbone of large-scale parallel systems. In order to build ultra-scale supercomputers larger interconnection networks are being designed and deployed. As compute nodes become more ... -
Multi-constraint scheduling of MapReduce workloads
(Universitat Politècnica de Catalunya, 2014-07-15)
Doctoral thesis
Open AccessIn recent years there has been an extraordinary growth of large-scale data processing and related technologies in both, industry and academic communities. This trend is mostly driven by the need to explore the increasingly ... -
NVIDIA CUDA Software and GPU Parallel Computing Architecture
(2008-04-16)
Audiovisual
Open Access -
Optimal distance networks of low degree for parallel computers
(1989)
Research report
Open AccessWe introduce and study a family of interconnection schemes, the Midimew networks, based on circulant graphs of degree 4. A family of such circulants is determined and shown to be optimal with respect to two distance ...
