Exploració per autor "Cortés, Toni"
Ara es mostren els items 36-53 de 53
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Performance impacts with reliable parallel file systems at exascale level
Nou Castell, Ramon; Miranda, Alberto; Cortés, Toni (Springer, 2015)
Text en actes de congrés
Accés restringit per política de l'editorialThe introduction of Exascale storage into production systems will lead to an increase on the number of storage servers needed by parallel file systems. In this scenario, parallel file system designers should move from the ... -
Predicting access to persistent objects through static code analysis
Touma, Rizkallah; Queralt Calafat, Anna; Cortés, Toni; Pérez Hernandez, María S. (Springer, 2017)
Text en actes de congrés
Accés obertIn this paper, we present a fully-automatic, high-accuracy approach to predict access to persistent objects through static code analysis of object-oriented applications. The most widely-used previous technique uses a simple ... -
Predicting MPI buffer addresses.
Freitag, Fèlix; Farreras Esclusa, Montserrat; Cortés, Toni; Labarta Mancho, Jesús José (Springer, 2004)
Comunicació de congrés
Accés obertCommunication latencies have been identified as one of the performance limiting factors of message passing applications in clusters of workstations/multiprocessors. On the receiver side, message-copying operations contribute ... -
PyCOMPSs: Parallel computational workflows in Python
Tejedor, Enric; Becerra Fontal, Yolanda; Alomar, Guillem; Queralt Calafat, Anna; Badia Sala, Rosa Maria; Torres Viñals, Jordi; Cortés, Toni; Labarta Mancho, Jesús José (2017-01-01)
Article
Accés obertThe use of the Python programming language for scientific computing has been gaining momentum in the last years. The fact that it is compact and readable and its complete set of scientific libraries are two important ... -
Reliable and randomized data distribution strategies for large scale storage systems
Miranda Bueno, Alberto; Effert, S.; Kang, Y.; Miller, E.L.; Brinkmann, A.; Cortés, Toni (2011)
Text en actes de congrés
Accés obertThe ever-growing amount of data requires highly scalable storage solutions. The most flexible approach is to use storage pools that can be expanded and scaled down by adding or removing storage devices. To make this approach ... -
Revisiting active object stores: Bringing data locality to the limit with NVM
Barceló Cuerda, Alex; Queralt Calafat, Anna; Cortés, Toni (Elsevier, 2022-04)
Article
Accés obertObject stores are widely used software stacks that achieve excellent scale-out with a well-defined interface and robust performance. However, their traditional get/put interface is unable to exploit data locality at its ... -
RosneT: A block tensor algebra library for out-of-core quantum computing simulation
Sánchez Ramírez, Sergio; Conejero Bañón, Francisco Javier; Lordan Gomis, Francesc; Queralt Calafat, Anna; Cortés, Toni; Badia Sala, Rosa Maria; García Sáez, Artur (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertWith the advent of more powerful Quantum Computers, the need for larger Quantum Simulations has boosted. As the amount of resources grows exponentially with size of the target system Tensor Networks emerge as an optimal ... -
Running OpenMP application efficiently on an everything-shared SDSM
Costa Prats, Juan José; Cortés, Toni; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2006-05)
Article
Accés restringit per política de l'editorialTraditional software distributed shared memory (SDSM) systems modify the semantics of a real hardware shared memory system by relaxing the coherence semantic and by limiting the memory regions that are actually shared. ... -
Running OpenMp applications efficiently on an everything-shared SDSM
Costa Prats, Juan José; Cortés, Toni; Martorell Bofill, Xavier; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2004)
Comunicació de congrés
Accés obertTraditional software distributed shared memory (SDSM) systems modify the semantics of a real hardware shared memory system by relaxing the coherence semantic and by limiting the memory regions that are actually shared. ... -
Scalable RDMA performance in PGAS languages
Farreras Esclusa, Montserrat; Almási, George; Cortés, Toni (2009-05)
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 ofSMPs. Users can program large ... -
Simurgh: a fully decentralized and secure NVMM user space file system
Moti, Nafiseh; Schimmelpfennig, Frederic; Salkhordeh, Reza; Klopp, David; Cortés, Toni; Rückert, Ulrich; Brinkmann, Andre (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés obertThe availability of non-volatile main memory (NVMM) has started a new era for storage systems and NVMM specific file systems can support extremely high data and metadata rates, which are required by many HPC and data-intensive ... -
Tailwind: Fast and atomic RDMA-based replication
Taleb, Yacine; Stutsman, Ryan; Antoniu, Gabriel; Cortés, Toni (USENIX Association, 2018)
Text en actes de congrés
Accés obertReplication is essential for fault-tolerance. However, in in-memory systems, it is a source of high overhead. Remote direct memory access (RDMA) is attractive to create redundant copies of data, since it is low-latency and ... -
Towards DaaS 2.0: enriching data models
Marti Fraiz, Jonathan; Gasull, Daniel; Queralt Calafat, Anna; Cortés, Toni (Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés obertCurrent Data as a Service solutions present a lack of flexibility in terms of allowing users to customize the underlying data models by including new concepts or functionalities. Data providers either publish global APIs ... -
Towards on-demand I/O forwarding in HPC platforms
Bez, Jean Luca; Zanon Boito, Francieli; Miranda Bueno, Alberto; Nou Castell, Ramon; Cortés, Toni; Navaux, Philippe O.A. (Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertI/O forwarding is an established and widely-adopted technique in HPC to reduce contention and improve I/O performance in the access to shared storage infrastructure. On such machines, this layer is often physically deployed ... -
Un mecanismo de IPC de microkernel embebido en el kernel de Linux
Pessolani, Pablo; Cortés, Toni; Gonnet, Silvio; Tinetti, Fernando (Universidad Autonóma de Entre Ríos (UADER), 2013)
Text en actes de congrés
Accés obertExiste una marcada tendencia en la industria de comercializar procesadores con múltiples núcleos, conocidos como multi-cores. Se prevé que en el mediano plazo la cantidad de núcleos aumente significativamente hasta miles ... -
Using file system virtualization to avoid metadata bottlenecks
Artiaga Amouroux, Ernest; Cortés, Toni (2010-03)
Text en actes de congrés
Accés obertAbstract—Parallel file systems are very sensitive to adverse conditions, and the lack of synergy between such file systems and some of the applications running on them has a negative impact on the overall system performance. ... -
XtreemOS application execution management: a scalable approach
Nou Castell, Ramon; Giralt Celiméndiz, Jacobo; Corbalán González, Julita; Tejedor Saavedra, Enric; Fitó, Josep Oriol; Perez, Josep Maria; Cortés, Toni (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
Text en actes de congrés
Accés obertDesigning a job management system for the Grid is a non-trivial task. While a complex middleware can give a lot of features, it often implies sacrificing performance. Such performance loss is especially noticeable for ... -
XtreemOS-MD: Grid computing from mobile devices
Martínez, Álvaro; Prieto, Santiago; Gallego, Noé; Nou Castell, Ramon; Giralt, Jacobo; Cortés, Toni (2010-06)
Text en actes de congrés
Accés obertGrid and Cloud computing are well known topics, and currently one of the focus of many research and commercial projects. Nevertheless, the transparent access to Grid facilities from mobile devices (like PDAs or smartphones) ...