Browsing by Author "Corbalán González, Julita"
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A dynamic periodicity detector: application to speedup computation
Freitag, Fèlix; Corbalán González, Julita; Labarta Mancho, Jesús José (IEEE, 2001-04)
Conference report
Open AccessWe propose a dynamic periodicity detector (DPD) for the estimation of periodicities in data series obtained from the execution of applications. We analyze the algorithm used by the periodicity detector and its performance ... -
A proposal to develop and assess professional skills in Engineering Final Year Projects
Sánchez Carracedo, Fermín; Climent Vilaró, Joan; Corbalán González, Julita; Fonseca Casas, Pau; García Almiñana, Jordi; Herrero Zaragoza, José Ramón; Rodríguez Hontoria, Horacio; Sancho Samsó, María Ribera (Tempus Publications, 2018-03)
Article
Restricted access - publisher's policyIn this paper we discuss the result of piloting a methodology for Engineering Final Year Projects (FYP) assessment that takes into consideration professional skills acquisition. The FYP is structured around three milestones; ... -
Balancing HPC applications through smart allocation of resources in MT processors
Boneti, Carlos; Gioiosa, Roberto; Cazorla, Francisco; Corbalán González, Julita; Labarta Mancho, Jesús José; Valero Cortés, Mateo (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 ... -
BSLD threshold driven parallel job scheduling for energy efficient HPC centers
Etinski, Maja; Corbalán González, Julita; Labarta Mancho, Jesús José; Valero Cortés, Mateo (2009)
Research report
Open AccessRecently, power awareness in high performance computing (HPC) community has increased significantly. While CPU power reduction of HPC applications using Dynamic Voltage Frequency Scaling (DVFS) has been explored thoroughly, ... -
BSLD threshold driven power management policy for HPC centers
Etinski, Maja; Corbalán González, Julita; Labarta Mancho, Jesús José; Valero Cortés, Mateo (Institute of Electrical and Electronics Engineers (IEEE), 2010)
Conference report
Open AccessIn this paper, we propose a power-aware parallel job scheduler assuming DVFS enabled clusters. A CPU frequency assignment algorithm is integrated into the well established EASY backfilling job scheduling policy. Running a ... -
Coordinated Scheduling and Dynamic Performance Analysis in Multiprocessors Systems
Corbalán González, Julita (Universitat Politècnica de Catalunya, 2002-07-05)
Doctoral thesis
Open AccessEl rendimiento de los actuales sistemas multiprocesador de memoria compartida depende tanto de la utilización eficiente de todos los componentes del sistema (procesadores, memoria, etc), como de las características del ... -
DJSB: Dynamic Job Scheduling Benchmark
López Herrero, Víctor; Jokanovic, Ana; D'Amico, Marco; Garcia Gasulla, Marta; Sirvent Pardell, Raül; Corbalán González, Julita (Springer, 2018-02-28)
Conference lecture
Open AccessHigh-performance computing (HPC) systems are very big and powerful systems, with the main goal of achieving maximum performance of parallel jobs. Many dynamic factors influence the performance which makes this goal a ... -
DROM: Enabling Efficient and Effortless Malleability for Resource Managers
D'Amico, Marco; Garcia Gasulla, Marta; López, Victor; Jokanovic, Ana; Sirvent, Raül; Corbalán González, Julita (Association for Computing Machinery (ACM), 2018-08-13)
Conference lecture
Open AccessIn the design of future HPC systems, research in resource management is showing an increasing interest in a more dynamic control of the available resources. It has been proven that enabling the jobs to change the number ... -
Dynamic load balancing for hybrid applications
Garcia Gasulla, Marta; Corbalán González, Julita; Labarta Mancho, Jesús José (Barcelona Supercomputing Center, 2015-05-05)
Conference report
Open AccessDLB relies on the usage of hybrid programming models and exploits the malleability of the second level of parallelism to redistribute computation power across processes. -
Dynamic load balancing of MPI+OpenMP applications
Corbalán González, Julita; Duran González, Alejandro; Labarta Mancho, Jesús José (Institute of Electrical and Electronics Engineers (IEEE), 2004)
Conference report
Open AccessThe hybrid programming model MPI+OpenMP are useful to solve the problems of load balancing of parallel applications independently of the architecture. Typical approaches to balance parallel applications using two levels ... -
Energy optimization and analysis with EAR
Corbalán González, Julita; Alonso Jane, Lluís; Aneas Gómez, Jordi; Brochard, Luigi (Institute of Electrical and Electronics Engineers (IEEE), 2020)
Conference report
Open AccessEAR is an energy management framework which offers three main services: energy accounting, energy control, and energy optimization. The latter is done through the EAR runtime library (EARL). EARL is a dynamic, transparent, ... -
ETP4HPC’s SRA 5 strategic research agenda for High-Performance Computing in Europe 2022: European HPC research priorities 2023-2027
Carpenter, Paul Matthew; Casas Guix, Marc; Unsal, Osman Sabri; Radojkovic, Petar; Martorell Bofill, Xavier; Miranda, Alberto; Guitart Fernández, Jordi; Corbalán González, Julita; Peña Monferrer, Antonio José; Bautista Gomez, Leonardo Arturo; Vázquez García, Miguel; Beltran Querol, Vicenç; Queralt Calafat, Anna; Nou Castell, Ramon; Borrell Pol, Ricard; Houzeaux, Guillaume; Serradell Maronda, Kim; Carrera Pérez, David; García Sáez, Artur; Puchol García, Carlos (2022-09)
Research report
Open AccessThis document feeds research and development priorities devel-oped by the European HPC ecosystem into EuroHPC’s Research and Innovation Advisory Group with an aim to define the HPC Technology research Work Programme and ... -
Evaluación del Trabajo de Fin de Grado
Sánchez Carracedo, Fermín; Climent Vilaró, Joan; Corbalán González, Julita; Fonseca Casas, Pau; García Almiñana, Jordi; Herrero Zaragoza, José Ramón; Llinàs Audet, Francisco Javier; Rodríguez Hontoria, Horacio; Sancho Samsó, María Ribera (Universitat Jaume I. Escola Superior de Tecnologia i Ciències Experimentals, 2013-07-10)
Conference report
Open AccessLos Proyectos de Fin de Carrera (PFC) se han evaluado tradicionalmente a partir de una memoria y de una presentación pública. Esta evaluación, en general, la realiza un tribunal formado por varios profesores, que juzga ... -
Evaluating SLURM simulator with real-machine SLURM and vice versa
Jokanovic, Ana; D'Amico, Marco; Corbalán González, Julita (Institute of Electrical and Electronics Engineers (IEEE), 2018)
Conference report
Open AccessHaving a precise and a fast job scheduler model that resembles the real-machine job scheduling software behavior is extremely important in the field of job scheduling. The idea behind SLURM simulator is preserving the ... -
Evaluation and assessment of professional skills in the Final Year Project
Sánchez Carracedo, Fermín; Climent Vilaró, Joan; Corbalán González, Julita; Fonseca Casas, Pau; García Almiñana, Jordi; Herrero Zaragoza, José Ramón; Llinàs Audet, Francisco Javier; Rodríguez Hontoria, Horacio; Sancho Samsó, María Ribera; Alier Forment, Marc; Cabré Garcia, José M.; López Álvarez, David (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Conference report
Open AccessIn this paper, we present a methodology for Final Year Project (FYP) monitoring and assessment that considers the inclusion of the professional skills required in the particular engineering degree. This proper monitoring ... -
Evaluation of OpenMP task scheduling strategies
Duran González, Alejandro; Corbalán González, Julita; Ayguadé Parra, Eduard (2008-05)
Article
Restricted access - publisher's policyOpenMP is in the process of adding a tasking model that allows the programmer to specify independent units of work, called tasks, but does not specify how the scheduling of these tasks should be done (although it imposes ... -
Explicit uncore frequency scaling for energy optimisation policies with EAR in Intel architectures
Corbalán González, Julita; Vidal Teruel, Oriol; Alonso Jane, Lluís; Aneas Gómez, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessEAR is an energy management framework which offers three main services: energy accounting, energy control and energy optimisation. The latter is done through the EAR runtime library (EARL). EARL is a dynamic, transparent, ... -
Hints to improve automatic load balancing with LeWI for hybrid applications
Garcia Gasulla, Marta; Labarta Mancho, Jesús José; Corbalán González, Julita (Elsevier, 2014-09-01)
Article
Open AccessThe 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 ... -
Holistic slowdown driven scheduling and resource management for malleable jobs
D'Amico, Marco; Jokanovic, Ana; Corbalán González, Julita (Association for Computing Machinery (ACM), 2019)
Conference report
Open AccessIn job scheduling, the concept of malleability has been explored since many years ago. Research shows that malleability improves system performance, but its utilization in HPC never became widespread. The causes are the ... -
Modular workload format: Extending SWF for modular systems
Corbalán González, Julita; D'Amico, Marco (Springer, 2021)
Conference report
Open AccessThis paper presents the Modular Workload Format (MWF), a proposal for extending the widely accepted Standard Workload Format (SWF) for job scheduling evaluation. David Talby and Dror Feitelson proposed the SWF in 1999, ...