Towards EXtreme scale technologies and accelerators for euROhpc hw/Sw supercomputing applications for exascale: The TEXTAROSSA approach

Agosta, Giovanni; Aldinucci, Marco; Álvarez, Carlos; Ammendola, Roberto; Arfat, Yasir; Beaumont, Olivier; Bernaschi, Massimo; Biagioni, A.; Bramas, Bérenger; Brandolese, Carlo; Cantalupo, Barbara; Carrozzo, Mauro; Cattaneo, Daniele; Celestini, Alessandro; Celino, Massimo; Colonnelli, Iacopo; Cretaro, Paolo; D'Ambra, Pasqua; Danelutto, Marco; Esposito, Roberto; Eyraud-Dubois, Lionel; Filgueras, Antonio; Fornaciari, William; Frezza, Ottorino; Galimberti, Andrea; Giacomini, Francesco; Goglin, Brice; Gregori, Daniele; Guermouche, Abdou; Iannone, F.; Kulczewski, Michal; Cicero, Francesca Lo; Lonardo, A.; Martinelli, Alberto Riccardo; Martinelli, M.; Martorell, Xavier; Massari, Giuseppe; Montangero, Simone; Mittone, Gianluca; Namyst, Raymond; Oleksiak, Ariel; Palazzari, P.; Paolucci, Pier Stanislao; Reghenzani, Federico; Rossi, Cristian; Saponara, Sergio; Simula, Francesco; Terraneo, Federico; Thibault, Samuel; Torquati, Massimo; Turisini, Matteo; Vicini, P.; Vidal, Miquel; Zoni, Davide; Zummo, Giovanni

doi:10.1016/j.micpro.2022.104679

Cited by 5 publications

(3 citation statements)

References 69 publications

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“…In ISOLDE, we aim at combining two existing methodologies: on the compiler side, TAFFO [10], a set of plugins for LLVM that support mixed precision computing; on the hardware design side, an FPU design template to develop custom mixed precision units within a RISC-V core [39]. TAFFO was first developed as part of the ANTAREX FETHPC project [30] to support precision tuning in high performance computing, and further extended in the TEXTAROSSA EuroHPC project [1] to support heterogeneous architectures. In ISOLDE, support for RISC-V platforms will be developed, together with the ability to support the design space exploration of customized architectures suitable for edge computing by means of the design template developed in [39,40], which significantly widens the design space for RISC-V mixed precision architectures.…”

Section: Energy Efficiency Real-time and Power Monitoringmentioning

confidence: 99%

RISC-V Processor Technologies for Aerospace Applications in the ISOLDE Project

Fornaciari,

Reghenzani,

Agosta

et al. 2023

Lecture Notes in Computer Science

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Section: Energy Efficiency Real-time and Power Monitoringmentioning

confidence: 99%

RISC-V Processor Technologies for Aerospace Applications in the ISOLDE Project

Fornaciari,

Reghenzani,

Agosta

et al. 2023

Lecture Notes in Computer Science

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“…Two European efforts have recently started with complementary goals addressing the problem stated above. EuroHPC TEXTAROSSA [1,2] focuses on heterogeneous platforms for High Performance Computing (HPC), including both reconfigurable fabrics and general purpose accelerators (GPU), whereas MSCA-ITN APROPOS [19] is more oriented towards low-power embedded systems. In this paper, we show how the two projects will work synergically towards the development of both hardware and software components needed for effective Mixed Precision Computing across the Computing Continuum.…”

Section: Introductionmentioning

confidence: 99%

Hardware and Software Support for Mixed Precision Computing: a Roadmap for Embedded and HPC Systems

Fornaciari

Agosta

Cattaneo

et al. 2023

2023 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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Mixed precision is an approximate computing technique that can be used to trade-off computation accuracy for performance and/or energy. It can be applied to many error-tolerant applications, but manual precision tuning is both tedious and error-prone. Furthermore, the effectiveness of the technique heavily depends on hardware characteristics. Therefore, a hardware/software co-design approach is necessary for an effective exploitation of precision tuning opportunities offered by the applications. In this paper, we propose, based on the state of the art of precision tuning software and mixed precision hardware, a roadmap for the evolution of hardware designs and compiler-based precision tuning support, which is ongoing in the context of the European projects TEXTAROSSA and APROPOS. CCS CONCEPTS• Software and its engineering → Compilers; • Computer systems organization → Reduced instruction set computing; Parallel architectures.

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“…The exascale computing era is making the energy consumption of high-performance computing (HPC) a crucial aspect of modern facilities: energy-saving optimizations in the computational cluster workflow play a fundamental role [1][2][3]. The rise of graphics processing units for HPC applications demonstrated the benefit of specialized hardware accelerating certain tasks, e.g.…”

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confidence: 99%

Is quantum computing green? An estimate for an energy-efficiency quantum advantage

Jaschke

Montangero

2023

Quantum Sci. Technol.

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The quantum advantage threshold determines when a quantum processing unit (QPU) is more efﬁcient with respect to classical computing hardware in terms of algorithmic complexity. The “green" quantum advantage threshold – based on a comparison of energetic efﬁciency between the two – is going to play a fundamental role in the comparison between quantum and classical hardware. Indeed, its characterization would enable better decisions on energy-saving strategies, e.g. for distributing the workload in hybrid quantum-classical algorithms. Here, we show that the green quantum advantage threshold crucially depends on (i) the quality of the experimental quantum gates and (ii) the entanglement generated in the QPU. Indeed, for NISQ hardware and algorithms requiring a moderate amount of entanglement, a classical tensor network emulation can be more energy-efficient at equal final state fidelity than quantum computation. We compute the green quantum advantage threshold for a few paradigmatic examples in terms of algorithms and hardware platforms, and identify algorithms with a power-law decay of singular values of bipartitions – with power-law exponents approximately α < 1 – as the green quantum advantage threshold in the near future.

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Towards EXtreme scale technologies and accelerators for euROhpc hw/Sw supercomputing applications for exascale: The TEXTAROSSA approach

Cited by 5 publications

References 69 publications

RISC-V Processor Technologies for Aerospace Applications in the ISOLDE Project

RISC-V Processor Technologies for Aerospace Applications in the ISOLDE Project

Hardware and Software Support for Mixed Precision Computing: a Roadmap for Embedded and HPC Systems

Is quantum computing green? An estimate for an energy-efficiency quantum advantage

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