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Browsing by Author "Garcia Gasulla, Marta"Més informació

Now showing items 21-33 of 33

    • NVIDIA Grace superchip early evaluation for HPC applications 

      Banchelli Gracia, Fabio; Vinyals Ylla-Català, Joan; Pocurull Serra, Josep; Clascà Ramírez, Marc; Peiró Conde, Kilian; Spiga, Filippo; Garcia Gasulla, Marta; Mantovani, Filippo (Association for Computing Machinery (ACM), 2024)
      Conference report
      Open Access
      Arm-based system in HPC are a reality since more than a decade. However, when a new chip enters the market always implies challenges, not only at ISA level, but also with regards to the SoC integration, the memory subsystem, ...

    • Optimization of condensed matter physics application with OpenMP tasking model 

      Criado, Joel; Garcia Gasulla, Marta; Labarta Mancho, Jesús José; Chatterjee, Arghya; Hernández, Óscar; Sirvent, Raül; Álvarez, Gonzalo (Springer, 2019)
      Conference report
      Open Access
      The Density Matrix Renormalization Group (DMRG++) is a condensed matter physics application used to study superconductivity properties of materials. It’s main computations consist of calculating hamiltonian matrix which ...

    • Performance Analysis and Optimizations of ERO2.0 Fusion Code 

      Garcia Gasulla, Marta; Vinyals Ylla Catala, Joan; Romazanov, Juri; Baumann, Christoph; Matveev, Dmitry (Association for Computing Machinery (ACM), 2024)
      Conference lecture
      Open Access
      In this paper, we present a thorough performance analysis of a highly parallel Monte Carlo code for modeling global erosion and redeposition in fusion devices, ERO2.0. The study shows that the main bottleneck preventing ...

    • Performance analysis of DLR confined jet high pressure combustor using BSC tools 

      Pocurull Serra, Josep; Garcia Gasulla, Marta (Barcelona Supercomputing Center, 2024-05)
      Conference report
      Open Access
      In recent years, we have seen supercomputers evolve and reach the exascale. This has been possible thanks to different techniques, such as increasing the number of cores per node, using accelerators, or aggregating more ...

    • Performance and energy consumption of HPC workloads on a cluster based on Arm ThunderX2 CPU 

      Mantovani, Filippo; Garcia Gasulla, Marta; Gracia, Jose; Stafford, Esteban; Banchelli Gracia, Fabio; Josep Fabregó, Marc; Criado Ledesma, Joel; Nachtmann, Mathias (Elsevier, 2020-11)
      Article
      Open Access
      In this paper, we analyze the performance and energy consumption of an Arm-based high-performance computing (HPC) system developed within the European project Mont-Blanc 3. This system, called Dibona, has been integrated ...

    • Performance Comparison of CFD Microbenchmarks on Diverse HPC Architectures 

      Galeazzo, Flavio C. C.; Garcia Gasulla, Marta; Boella, Elisabetta; Pocurull, Josep; Lesnik, Sergey (MDPI, 2024)
      Article
      Open Access
      OpenFOAM is a CFD software widely used in both industry and academia. The exaFOAM project aims at enhancing the HPC scalability of OpenFOAM, while identifying its current bottlenecks and proposing ways to overcome them. ...

    • Performance study of HPC applications on an Arm-based cluster using a generic efficiency model 

      Banchelli Gracia, Fabio; Peiró Conde, Kilian; Querol de Porras, Andrea; Ramírez Gargallo, Guillem; Ramírez Miranda, Guillem; Vinyals Ylla-Català, Joan; Vizcaíno Serrano, Pablo; Garcia Gasulla, Marta; Mantovani, Filippo (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Conference report
      Open Access
      HPC systems and parallel applications are increasing their complexity. Therefore the possibility of easily study and project at large scale the performance of scientific applications is of paramount importance. In this ...

    • Role-shifting threads: Increasing OpenMP malleability to address load imbalance at MPI and OpenMP 

      Criado Ledesma, Joel; López Herrero, Víctor; Vinyals Ylla Català, Joan; Ramirez Miranda, Guillem; Teruel García, Xavier; Garcia Gasulla, Marta (SAGE Publications, 2023-10)
      Article
      Open Access
      This paper presents the evolution of the free agent threads for OpenMP to the new role-shifting threads model and their integration with the Dynamic Load Balancing (DLB) library. We demonstrate how free agent threads can ...

    • Size & shape matters: The need of HPC benchmarks of high resolution image training for deep learning 

      Parés Pont, Ferran; Megias Montsesinos, Pedro; Garcia Gasulla, Dario; Garcia Gasulla, Marta; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2021-03)
      Article
      Open Access
      One of the purposes of HPC benchmarks is to identify limitations and bottlenecks in hardware. This functionality is particularly influential when assessing performance on emerging tasks, the nature and requirements of which ...

    • Software development vehicles to enable extended and early co-design: a RISC-V and HPC case of study 

      Mantovani, Filippo; Vizcaíno Serrano, Pablo; Banchelli Gracia, Fabio; Garcia Gasulla, Marta; Ferrer Ibañez, Roger; Ieronymakis, Georgios; Dimou, Nikolaus; Papaefstathiou, Vassilis; Labarta Mancho, Jesús José (Springer, 2023)
      Conference report
      Open Access
      Prototyping HPC systems with low-to-mid technology readiness level (TRL) systems is critical for providing feedback to hardware designers, the system software team (e.g., compiler developers), and early adopters from the ...

    • TALP: A Lightweight Tool to Unveil Parallel Efficiency of Large-scale Executions 

      Lopez, Victor; Ramirez Miranda, Guillem; Garcia Gasulla, Marta (Association for Computing Machinery, 2021)
      Conference lecture
      Open Access
      This paper presents the design, implementation, and application of TALP, a lightweight, portable, extensible, and scalable tool for online parallel performance measurement. The efficiency metrics reported by TALP allow HPC ...

    • The Advanced Computing Hub at BSC: Improving fusion codes following modern software engineering standards 

      Saez Pous, Xavier; Soba, Alejandro; Vinyals Ylla Català, Joan; Saxena, Gaurav; Garcia Gasulla, Marta; Morales, Cristian; Vicente Dorca, David; Mantsinen, Mervi (IOP Publishing, 2024)
      Article
      Open Access
      Several dedicated High-Performance Computing (HPC) centers provide essential expertise and support in developing a suitable portfolio of EUROfusion standard codes. Barcelona Supercomputing Center (BSC) is one of these HPC ...

    • The cooperative parallel: A discussion about run-time schedulers for nested parallelism 

      Royuela, Sara; Serrano, Maria A.; Garcia Gasulla, Marta; Mateo Bellido, Sergi; Labarta Mancho, Jesús José; Quiñones Moreno, Eduardo (Springer, 2019)
      Conference report
      Open Access
      Nested parallelism is a well-known parallelization strategy to exploit irregular parallelism in HPC applications. This strategy also fits in critical real-time embedded systems, composed of a set of concurrent functionalities. ...