Browsing by Author "Garcia Gasulla, Marta"
Now showing items 1-20 of 33
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A generic performance analysis technique applied to different CFD methods for HPC
(Taylor & Francis, 2020-07-16)
Article
Open AccessFor complex engineering and scientific applications, Computational Fluid Dynamics (CFD) simulations require a huge amount of computational power. As such, it is of paramount importance to carefully assess the performance ... -
An OpenMP free agent threads implementation
(Springer, 2021)
Conference report
Open AccessIn this paper, we introduce a design and implementation of the free agent threads for OpenMP. These threads increase the malleability of the OpenMP programming model, offering resource managers and runtime systems flexibility ... -
Benchmarking of state-of-the-art HPC clusters with a production CFD code
(Association for Computing Machinery (ACM), 2020)
Conference report
Open AccessComputing technologies populating high-performance computing (HPC) clusters are getting more and more diverse, offering a wide range of architectural features. As a consequence, efficient programming of such platforms ... -
Cluster of emerging technology: evaluation of a production HPC system based on A64FX
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessClusters of emerging technologies are appearing with more and more frequency in HPC. After years of skepticism, data-centers are adopting them as production systems thanks to several geopolitical and technological factors. ... -
Containers in HPC: a scalability and portability study in production biological simulations
(Barcelona Supercomputing Center, 2019-05-07)
Conference report
Open Access -
CoreNEURON: Performance and Energy Efficiency Evaluation on Intel and Arm CPUs
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Conference lecture
Open AccessThe simulation of detailed neuronal circuits is based on computationally expensive software simulations and requires access to a large computing cluster. The appearance of new Instruction Set Architectures (ISAs) in most ... -
DJSB: Dynamic Job Scheduling Benchmark
(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
(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 balance of chemical source term evaluation in high-fidelity combustion simulations
(Elsevier, 2023)
Article
Open AccessThis paper presents a load balancing strategy for reaction rate evaluation and chemistry integration in reacting flow simulations. The large disparity in scales during combustion introduces stiffness in the numerical ... -
Dynamic load balancing for hybrid applications
(Universitat Politècnica de Catalunya, 2017-04-18)
Doctoral thesis
Open AccessIt is well known that load imbalance is a major source of efficiency loss in HPC (High Performance Computing) environments. The load imbalance problem has very different sources, from static ones related to the data ... -
Dynamic load balancing for hybrid applications
(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 resource allocation for efficient parallel CFD simulations
(Elsevier, 2022-09-15)
Article
Open AccessCFD users of supercomputers usually resort to rule-of-thumb methods to select the number of subdomains (partitions) when relying on MPI-based parallelization. One common approach is to set a minimum number of elements or ... -
Efficient Parallel Strategies For Conjugate Heat Transfer Problems
(Association for Computing Machinery (ACM), 2024)
Conference lecture
Open AccessHistorically, temperature boundary conditions in thermal fluids have conventionally been approached as Robin-type boundary conditions. However, with the emergence of supercomputing capabilities, there is now the opportunity ... -
Fluid-structure interaction based on HPC multicode coupling
(2018)
Article
Restricted access - publisher's policyThe fluid-structure interaction (FSI) problem has received great attention in the last few years, mainly because it is present in many physical systems, industrial applications, and almost every biological system. In the ... -
GOPHER, an HPC framework for large scale graph exploration and inference
(Springer, 2020)
Conference report
Open AccessBiological ontologies, such as the Human Phenotype Ontology (HPO) and the Gene Ontology (GO), are extensively used in biomedical research to investigate the complex relationship that exists between the phenome and the ... -
Heterogeneous CPU/GPU co-execution of CFD simulations on the POWER9 architecture: Application to airplane aerodynamics
(Elsevier, 2020-06)
Article
Open AccessHigh fidelity Computational Fluid Dynamics simulations are generally associated with large computing requirements, which are progressively acute with each new generation of supercomputers. However, significant research ... -
Hints to improve automatic load balancing with LeWI for hybrid applications
(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 ... -
Hybrid parallelization of molecular dynamics simulations to reduce load imbalance
(Springer, 2022)
Article
Open AccessThe most widely used technique to allow for parallel simulations in molecular dynamics is spatial domain decomposition, where the physical geometry is divided into boxes, one per processor. This technique can inherently ... -
knowlEdge Project –Concept, methodology and innovations for artificial intelligence in industry 4.0
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Open AccessAI is one of the biggest megatrends towards the 4th industrial revolution. Although these technologies promise business sustainability as well as product and process quality, it seems that the ever-changing market demands, ... -
Lessons Learned from a Performance Analysis and Optimization of a Multiscale Cellular Simulation
(Association for Computing Machinery (ACM), 2023)
Conference lecture
Open AccessThis work presents a comprehensive performance analysis and optimization of a multiscale agent-based cellular simulation. The optimizations applied are guided by detailed performance analysis and include memory management, ...
