{
  "annotation_id": "105f2d74-79b6-45cc-aa5e-aafb7dd55d4c",
  "date_created": "2026-03-02T18:01:00.816000Z",
  "date_modified": "2026-03-02T18:01:00.816000Z",
  "file_hash": "3f077b5411db2d15150a584cd628d138601dfdd2eaecacc15f17f0ff385b6b78",
  "private": false,
  "record": {
    "abstract": "We have developed finite difference codes based on the Yin-Yang grid for the\ngeodynamo simulation and the mantle convection simulation. The Yin-Yang grid is\na kind of spherical overset grid that is composed of two identical component\ngrids. The intrinsic simplicity of the mesh configuration of the Yin-Yang grid\nenables us to develop highly optimized simulation codes on massively parallel\nsupercomputers. The Yin-Yang geodynamo code has achieved 15.2 Tflops with 4096\nprocessors on the Earth Simulator. This represents 46% of the theoretical peak\nperformance. The Yin-Yang mantle code has enabled us to carry out mantle\nconvection simulations in realistic regimes with a Rayleigh number of $10^7$\nincluding strongly temperature-dependent viscosity with spatial contrast up to\n$10^6$.",
    "arxiv_id": "physics/0506192",
    "authors": [
      "Akira Kageyama",
      "Masaki Yoshida"
    ],
    "categories": [
      "physics.geo-ph"
    ],
    "doi": "10.1088/1742-6596/16/1/045",
    "journal_ref": "Journal of Physics: Conference Series, Vol.16, 325-338 (2005)",
    "title": "Geodynamo and mantle convection simulations on the Earth Simulator using   the Yin-Yang grid",
    "url": "https://arxiv.org/abs/physics/0506192"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b47e32d4-7cf6-43a6-ae6b-f7216e880b54",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}