{
  "abstract": "This manuscript presents a performance evaluation of Fast Fourier Transform (FFT) implementations on emerging processors supporting the RISC-V Vector Extension (RVV 1.0). By introducing juFFTe, a light-weight high-performance library for discrete Fourier transforms, it is demonstrated how effective vectorization of performance-critical FFT kernels can be achieved on RVV-enabled hardware. Comprehensive benchmarks on three RVV 1.0-ready processors, the SiFive X280, the X100 core of the SpacemiT K3 and the C920v2 core of the Sophon SG2044, reveal substantial performance improvements of juFFTe (https://github.com/FZJ-JSC/juFFTe) over the widely used FFTW3 library. Although RVV-enabled platforms show promising results at this stage of development, a comparison with AMD's Zen 5 architecture indicates that RISC-V needs further maturing to reach the performance of established micro-architectures.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2608.28076",
  "author_total": 6,
  "authors": [
    {
      "name": "Daniel Seibel"
    },
    {
      "name": "Kaveh Haghighi Mood"
    },
    {
      "name": "Jayesh Badwaik"
    },
    {
      "name": "Prateek Chawla"
    },
    {
      "name": "Stepan Nassyr"
    },
    {
      "name": "Andreas Herten"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/7edbsmwjde2br.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2608.28076",
  "fulltext_url": null,
  "id": "7edbsmwjde2br",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2608.28076",
  "language": null,
  "licence": "CC-BY-SA-4.0",
  "licence_label": "CC BY-SA 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by-sa/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cs.DC"
    ],
    [
      "arxiv",
      "cs.MS"
    ],
    [
      "arxiv",
      "cs.NA"
    ],
    [
      "arxiv",
      "math.NA"
    ],
    [
      "openalex",
      "1708|Parallel Computing and Optimization Techniques"
    ]
  ],
  "openalex": "W7204804410",
  "pdf_url": "https://arxiv.org/pdf/2608.28076",
  "pmcid": null,
  "pmid": null,
  "published": "2026-08-28",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/7edbsmwjde2br.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:17:28Z",
      "native_id": "2608.28076",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2608.28076"
    }
  ],
  "subjects": [
    {
      "field": "mathematics",
      "origin": "arxiv:math.NA",
      "subfield": "numerical-analysis"
    }
  ],
  "title": "Performance Evaluation of Fast Fourier Transforms on Emerging RISC-V Hardware with Vector Extension Support",
  "title_text": "Performance Evaluation of Fast Fourier Transforms on Emerging RISC-V Hardware with Vector Extension Support",
  "type": "preprint",
  "updated_at": "2026-10-30T12:17:28Z",
  "url": "https://research.draconitic.com/paper/7edbsmwjde2br",
  "venue": "arXiv",
  "versions": []
}