Now showing items 1-20 of 311

    • 11th EGU Galileo Conference: Solid Earth and Geohazards in the Exascale Era Consensual Document 

      Folch, Arnau; Bhihe, Cedric; Caviedes-Vouillième, Daniel; de la Puente, Josep; Esposti Ongaro, Tomaso; Monterrubio, Marisol (2023)
      Working paper
      Open Access
      The 11th Galileo Conference of the European Geosciences Union (EGU) focused on "Solid Earth and Geohazards in the Exascale Era." This abstract presents the main outcomes and conclusions from the conference breakout sessions, ...
    • 1st BSC Doctoral Symposium : book of abstracts 

      Cucchietti, Fernando; Comes, Carles; Badia Moragas, Alba; Cabeza, Israel; Eguzkitza, Beatriz; Gifre Renom, Lluís; González, Santiago; Guevara Vilardell, Marc; Hernández, Roger; Hussain, Tassadaq; Jiménez, Brian; Liu, Qixiao; Moal, Iain; Obiso, Vincenzo; Palavedu, Karthikeyan; Panic, Milos; Rajovic, Nikola; Royuela, Sara; Scaini, Chiara; Soret, Albert; Stipić, Srđjan; Strassburg, Janko; Valverde, Víctor; Villalba, Álvaro (Barcelona Supercomputing Center, 2014-05-26)
      Conference report
      Open Access
    • 2013-2014 Severo Ochoa : Research Seminar Lectures at BSC : book of abstracts 

      Vázquez, Mariano; Goñi Macià, Ramon; Arís, Ruth; Jorba Casellas, Oriol; Schutgens, Nick; Kranzlmüller, Dieter; Schulz, Martin; Shi, Yong; Strassburg, Janko; Faraboschi, Paolo; Aguado Sierra, Jazmín; Saen-Oon, Suwipa; Walker, Ross C.; Cetto, Raul; Suzumura, Toyotaro; Di Tomaso, Enza; Patt, Yale; Zoppè, Monica; Jeannot, Emmanel; Klasky, Scott A. (Barcelona Super Computer Center. Education & Training team, 2014-08-05)
      Conference report
      Open Access
    • A 3D-1D cardiac-vascular computational feedbacked model 

      Santiago, Alfonso; Vázquez, Mariano; Houzeaux, Guillaume; Aguado-Sierra, Jazmin; López, Mariña; Rivero, Matías I.; Blanco Sánchez, Pablo; Watanabe, Sansuke (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      A first version of a cardiovascular coupled model is presented. The modelling tools are Alya, the BSC tool for biomechanical simulations; and ADAN55, the LNCC model of the arterial blood flow. The former solves the ...
    • A Demo of FPGA Aggressive Voltage Downscaling: Power and Reliability Tradeoffs 

      Salami, Behzad; Unsal, Osman Sabri; Cristal Kestelman, Adrián (IEEE, 2018-12-06)
      Conference lecture
      Open Access
      The power consumption of digital circuits, e.g., Field Programmable Gate Arrays (FPGAs), is directly related to their operating supply voltages. On the other hand, usually, chip vendors introduce a conservative voltage ...
    • A framework for multidimensional indexes on distributed and highly-available data stores 

      Cugnasco, Cesare; Becerra Fontal, Yolanda (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      No-relational databases are nowadays a common solution when dealing with a huge data set and massive query workload. These systems have been redesigned from scratch in order to achieve scalability and availability at ...
    • A Functional Safety OpenMP∗ for Critical Real-Time Embedded Systems 

      Royuela, Sara; Duran, Alejandro; Serrano, Maria A.; Quiñones, Eduardo; Martorell, Xavier (Springer, 2017-08-17)
      Part of book or chapter of book
      Open Access
      OpenMP* has recently gained attention in the embedded domain by virtue of the augmentations implemented in the last specification. Yet, the language has a minimal impact in the embedded real-time domain mostly due to the ...
    • A generic performance analysis technique applied to different CFD methods for HPC 

      Garcia Gasulla, Marta; Banchelli Gracia, Fabio; Peiró Conde, Kilian; Ramírez Gargallo, Guillem; Houzeaux, Guillaume; Hassan Saïdi, Ismaïl Ben; Tenaud, Christian; Spisso, Ivan; Mantovani, Filippo (Taylor & Francis, 2020-07-16)
      Article
      Open Access
      For 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 ...
    • A hierarchic task-based programming model for distributed heterogeneous computing 

      Ejarque, Jorge; Dominguez, Marc; Badia Sala, Rosa Maria (SAGE Publications, 2019-05-01)
      Article
      Open Access
      Distributed computing platforms are evolving to heterogeneous ecosystems with Clusters, Grids and Clouds introducing in its computing nodes, processors with different core architectures, accelerators (i.e. GPUs, FPGAs), ...
    • A hierarchical parallel implementation for heterogeneous computing. Application to algebra-based CFD simulations on hybrid supercomputers 

      Álvarez Farré, Xavier; Gorobets, Andrei; Trias Miquel, Francesc Xavier (Elsevier, 2021-01)
      Article
      Open Access
      The quest for new portable implementations of simulation algorithms is motivated by the increasing variety of computing architectures. Moreover, the hybridization of high-performance computing systems imposes additional ...
    • A Massively Parallel Algorithm for the Approximate Calculation of Inverse p-th Roots of Large Sparse Matrices 

      Lass, Michael; Mohr, Stephan; Wiebeler, Hendrik; Kühne, Thomas D.; Plessl, Christian (Association for Computing Machinery (ACM), 2018-07)
      Conference lecture
      Open Access
      We present the submatrix method, a highly parallelizable method for the approximate calculation of inverse p-th roots of large sparse symmetric matrices which are required in different scientific applications. Following ...
    • A Methodology for Selective Protection of Matrix Multiplications: A Diagnostic Coverage and Performance Trade-off for CNNs Executed on GPUs 

      Fernández, Javier; Agirre, Irune; Perez Cerrolaza, Jon; Abella Ferrer, Jaume; Cazorla Almeida, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Open Access
      The ability of CNNs to efficiently and accurately perform complex functions, such as object detection, has fostered their adoption in safety-related autonomous systems. These algorithms require high computational performance ...
    • A model of checkpoint behavior for applications that have I/O 

      León, Betzabeth; Méndez, Sandra; Franco, Daniel; Rexachs, Dolores; Luque, Emilio (Springer, 2022-04)
      Article
      Open Access
      Due to the increase and complexity of computer systems, reducing the overhead of fault tolerance techniques has become important in recent years. One technique in fault tolerance is checkpointing, which saves a snapshot ...
    • A Novel approach to reconstruct the plinian and co-ignimbrite phases of large eruptions - Campanian Ignimbrite 

      Marti, Alejandro; Folch, Arnau; Costa, Antonio; Engwell, Samantha (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      Reconstructing the volume and tephra dispersal from volcanic super-eruptions is necessary to assess the widespread impact of these massive events on climate, ecosystems and humans. Recent studies have demonstrated that ...
    • A parallel coupled algorithm for the solution of deformable two-body contact problem 

      Rivero Almeida, José Miguel; Cajas García, Juan Carlos; Houzeaux, Guillaume; Vázquez, Mariano (Barcelona Supercomputing Center, 2015-05-05)
      Conference report
      Open Access
      This work presents a parallel iterative method for numerical solving frictionless contact problem for two elastic bodies. Each iterative step consists of a Dirichlet problem for the one body and a Neumann problem for ...
    • Ab initio guided atomistic modelling of nanomaterials on exascale high-performance computing platforms 

      Gutierrez Moreno, José Julio (IOP Publishing, 2024)
      Article
      Restricted access - publisher's policy
      The continuous development of increasingly powerful supercomputers makes theory-guided discoveries in materials and molecular sciences more achievable than ever before. On this ground, the incoming arrival of exascale ...
    • Accelerating FFT using NEC SX-Aurora vector engine 

      Vizcaíno Serrano, Pablo; Mantovani, Filippo; Labarta Mancho, Jesús José (Springer, 2021)
      Conference report
      Open Access
      Novel architectures leveraging long and variable vector lengths like the NEC SX-Aurora or the vector extension of RISCV are appearing as promising solutions on the supercomputing market. These architectures often require ...
    • Accelerating K-mer Frequency Counting with GPU and Non-Volatile Memory 

      Cadenelli, Nicola; Polo Bardés, Jordà; Carrera, David (IEEE, 2018-02-15)
      Conference lecture
      Open Access
      The emergence of Next Generation Sequencing (NGS) platforms has increased the throughput of genomic sequencing and in turn the amount of data that needs to be processed, requiring highly efficient computation for its ...
    • Accelerating SpMV on FPGAs through block-row compress: a task-based approach 

      Oliver Segura, José; Álvarez Martínez, Carlos; Cervero García, Teresa; Martorell Bofill, Xavier; Davis, John D.; Ayguadé Parra, Eduard (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Open Access
      Sparse Matrix-Vector multiplication (SpMV), computing y=α⋅A×x+β⋅y where y,x are dense vectors, α,β two scalar constants, and A is a sparse matrix, is a key kernel in many HPC applications. It exhibits a kind of memory ...
    • Acceleration with long vector architectures: Implementation and evaluation of the FFT kernel on NEC SX-Aurora and RISC-V vector extension 

      Vizcaíno Serrano, Pablo; Mantovani, Filippo; Ferrer Ibañez, Roger; Labarta Mancho, Jesús José (Wiley (John Wiley & Sons), 2023-09-10)
      Article
      Open Access
      Novel architectures leveraging long and variable vector lengths like the NEC SX-Aurora or the vector extension of RISCV are appearing as promising solutions on the supercomputing market. These architectures often require ...