Výsledky vyhledávání - "José A. Moríñigo"

Execution data logs of a supercomputer workload over its extended lifetime

Autor: Manuel Rodríguez-Pascual, Rafael Mayo-García, José A. Moríñigo, Antonio J. Rubio-Montero

Publikováno v: Data in Brief

The data of this research describes the logged usage of the Euler cluster located at CIEMAT (Centre for Energy, Environment, and Technology Research), spanning the period between November 2008 and March 2018. The Euler database is open access in Para

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6545cb9746f00f9ce490715f98cbcfda

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Job migration in HPC clusters by means of checkpoint/ restart

Autor: José A. Moríñigo, Manuel Rodríguez-Pascual, Rafael Mayo-García, Gene Cooperman, Jiajun Cao

Publikováno v: Docu-menta. Repositorio Institucional del CIEMAT
Consejo Superior de Investigaciones Científicas (CSIC)
Docu-menta: Repositorio Institucional del CIEMAT
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)

Until now, jobs running on HPC clusters were tied to the node where their execution started. We have removed that limitation by integrating a user-level checkpoint/ restart library into a resource manager, fully transparent to both the user and runni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc4c138bb4d28f67d836774ebcf465f6
https://doi.org/10.1007/s11227-019-02857-y

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Benchmarking LAMMPS: Sensitivity to Task Location Under CPU-Based Weak-Scaling

Autor: Norbert Meyer, José A. Moríñigo, Rafael Mayo-García, Pablo García-Muller, Antonio Gómez-Iglesias, Antonio J. Rubio-Montero

Publikováno v: Communications in Computer and Information Science ISBN: 9783030162047
CARLA
Docu-menta. Repositorio Institucional del CIEMAT
Consejo Superior de Investigaciones Científicas (CSIC)
Docu-menta: Repositorio Institucional del CIEMAT
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)

This investigation summarizes a set of executions completed on the supercomputers Stampede at TACC (USA), Helios at IFERC (Japan), and Eagle at PSNC (Poland), with the molecular dynamics solver LAMMPS, compiled for CPUs. A communication-intensive ben

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36f9fbd303e414ec76d5391f728932f4
https://doi.org/10.1007/978-3-030-16205-4_17

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E ect of MPI tasks location on cluster throughput using NAS

Autor: José A. Moríñigo, Manuel Rodríguez-Pascual, Rafael Mayo-García

Publikováno v: Docu-menta: Repositorio Institucional del CIEMAT
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT)
Docu-menta. Repositorio Institucional del CIEMAT
Consejo Superior de Investigaciones Científicas (CSIC)

In this work the Numerical Aerodynamic Simulation (NAS) benchmarks have been executed in a systematic way on two clusters of rather different architectures and CPUs, to identify dependencies between MPI tasks mapping and the speedup or resource occup

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d882292a6436e7416b3d7116f07d76e
https://doi.org/10.1007/s10586-018-02898-7

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On the modelling of optimal coordinated checkpoint period in supercomputers

Autor: Manuel Rodríguez-Pascual, José A. Moríñigo, Rafael Mayo-García

This work revises current assumptions adopted in the checkpointing modelling and evaluates their impact on the attained prediction of the optimal coordinated single-level checkpoint period.Anaccurate a priori assessment of the optimal checkpoint peri

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6eb9e9e4e94cff1be13ddbfcc529e98
http://documenta.ciemat.es/handle/123456789/816

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Evaluation of reduced-order kinetic models for HTPB-oxygen combustion using LES

Autor: José Hermida-Quesada, José A. Moríñigo

Publikováno v: Aerospace Science and Technology. 58:358-368

This investigation analyses three finite-rate chemistry mechanisms of 2, 4 and 6 steps to simulate the combustion process in hybrid propellant rockets of HTPB-based (solid fuel) and gaseous oxygen. Computational Fluid Dynamics is used to compare the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0309df6314109b5e5443364a0e1ba3b1
https://doi.org/10.1016/j.ast.2016.08.027

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Numerical prediction of nozzle flow separation: Issue of turbulence modeling

Autor: B N Raghunandan, Allamaprabhu Yaravintelimath, José A. Moríñigo

Publikováno v: Aerospace Science and Technology. 50:31-43

Numerical simulation of separated flows in rocket nozzles is challenging because existing turbulence models are unable to predict it correctly. This paper addresses this issue with the Spalart-Allmaras and Shear Stress Transport (SST) eddy-viscosity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c7fb7b64fb8963e1c190730de7a4027
https://doi.org/10.1016/j.ast.2015.12.016

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Benchmarking Performance: Influence of Task Location on Cluster Throughput

Autor: José A. Moríñigo, Rafael Mayo-García, Manuel Rodríguez-Pascual

Publikováno v: Communications in Computer and Information Science ISBN: 9783319733524
CARLA

A variety of properties characterizes the execution of scientific applications on HPC environments (CPU, I/O or memory-bound, execution time, degree of parallelism, dedicated computational resources, strong- and weak-scaling behaviour, to cite some).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ea02188af676a3339839a407a32e7fbd
https://doi.org/10.1007/978-3-319-73353-1_9

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