Exploració per autor "Labarta Mancho, Jesús José"
Ara es mostren els items 74-93 de 217
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Feature discriminativity estimation in CNNs for transfer learning
(IOS Press, 2019)
Text en actes de congrés
Accés obertThe purpose of feature extraction on convolutional neural networks is to reuse deep representations learnt for a pre-trained model to solve a new, potentially unrelated problem. However, raw feature extraction from all ... -
Feature space curvature map: A method to homogenize cluster densities
(Institute of Electrical and Electronics Engineers (IEEE), 2022)
Text en actes de congrés
Accés obertThe majority of density-based clustering algorithms can not perform properly when data expose very different density through the feature space. These algorithms implicitly presume that all clusters almost have the same ... -
Fluid communities: a competitive, scalable and diverse community detection algorithm
(Springer, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialWe introduce a community detection algorithm (Fluid Communities) based on the idea of fluids interacting in an environment, expanding and contracting as a result of that interaction. Fluid Communities is based on the ... -
Folding: reporting instantaneous performance metrics and source-code references
(Barcelona Supercomputing Center, 2015-05-05)
Text en actes de congrés
Accés obertDespite supercomputers deliver huge computational power, applications only reach a fraction of it. There are several factors limiting the application performance, and one of the most important is the single processor ... -
Framework for a productive performance optimization
(2013-08)
Article
Accés restringit per política de l'editorialModern supercomputers deliver large computational power, but it is difficult for an application to exploit such power. One factor that limits the application performance is the single node performance. While many performance ... -
Full-network embedding in a multimodal embedding pipeline
(Association for Computational Linguistics, 2017)
Comunicació de congrés
Accés obertThe current state-of-the-art for image annotation and image retrieval tasks is obtained through deep neural networks, which combine an image representation and a text representation into a shared embedding space. In this ... -
Gaining asynchronity by using Hybrid UPC/SMPSS
(2009)
Text en actes de congrés
Accés obertPartitioned Global Address Space (PGAS) languages provide a unique programming model that can span shared-memory multiprocessor (SMP) architectures, distributed memory machines, or cluster of SMPs. Users can program large ... -
Generating a periodic pattern for VLIW
(Universidad de Málaga, 1995)
Text en actes de congrés
Accés obertFine-grain parallelism available in VLIW and superscalar processors can be mainly exploited in computational intensive loops. Aggressive scheduling techniques are required to fully exploit this parallelism. In this paper ... -
Generation of simple analytical models for message passing applications
(Springer, 2004)
Text en actes de congrés
Accés obertWe present a methodology which allows to derive accurate and simple models which are able to describe the performance of parallel applications without looking at the source code. A trace is obtained and linear models are ... -
Global misrouting policies in two-level hierarchical networks
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialDragonfly networks are composed of interconnected groups of routers. Adaptive routing allows packets to be forwarded minimally or non-minimally adapting to the traffic conditions in the network. While minimal routing sends ... -
Graph partitioning applied to DAG scheduling to reduce NUMA effects
(Association for Computing Machinery (ACM), 2018)
Comunicació de congrés
Accés obertThe complexity of shared memory systems is becoming more relevant as the number of memory domains increases, with different access latencies and bandwidth rates depending on the proximity between the cores and the devices ... -
Graph-based task replication for workflow applications
(Institute of Electrical and Electronics Engineers (IEEE), 2009)
Text en actes de congrés
Accés restringit per política de l'editorialThe Grid is an heterogeneous and dynamic environment which enables distributed computation. This makes it a technology prone to failures. Some related work uses replication to overcome failures in a set of independent ... -
Guided performance analysis combining profile and trace tools
(Springer, 2010)
Text en actes de congrés
Accés restringit per política de l'editorialPerformance analysis is very important to understand the applications’ behavior and to identify bottlenecks. Performance analysis tools should facilitate the exploration of the data collected and help to identify where the ... -
Handling task dependencies under strided and aliased references
(2010)
Text en actes de congrés
Accés restringit per política de l'editorialThe emergence of multicore processors has increased the need for simple parallel programming models usable by nonexperts. The ability to specify subparts of a bigger data structure is an important trait of High Productivity ... -
Hierarchical task-based programming with StarSs
(2009-08)
Article
Accés restringit per política de l'editorialProgramming models for multicore and many-core systems are listed as one of the main challenges in the near future for computing research. These programming models should be able to exploit the underlying platform, but ... -
Hints to improve automatic load balancing with LeWI for hybrid applications
(Elsevier, 2014-09-01)
Article
Accés obertThe DLB (Dynamic Load Balancing) library and LeWl (LEnd When Idle) algorithm provide a runtime solution to deal with the load imbalance of parallel applications independently of the source of imbalance. DLB relies on the ... -
Identifying code phases using piece-wise linear regressions
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialNode-level performance is one of the factors that may limit applications from reaching the supercomputers' peak performance. Studying node-level performance and attributing it to the source code results into valuable insight ... -
Identifying critical code sections in dataflow programming models
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe years of practice in optimizing applications point that the major issue is focus - identifying the critical code section whose optimization would yield the highest overall speedup. While this issue is mainly solved for ... -
Impact of the memory hierarchy on shared memory architectures in multicore programming models
(IEEE Computer Society Publications, 2009)
Comunicació de congrés
Accés obertMany and multicore architectures put a big pressure in parallel programming but gives a unique opportunity to propose new programming models that automatically exploit the parallelism of these architectures. OpenMP is a ... -
Implementing OmpSs support for regions of data in architectures with multiple address spaces
(ACM, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialThe need for features for managing complex data accesses in modern programming models has increased due to the emerging hardware architectures. HPC hardware has moved towards clusters of accelerators and/or multicores, ...
