{
  "scope": "Independent single-interval linear packet/basis analysis; no collision or solver execution",
  "geometry": {
    "coarse": [
      16,
      16
    ],
    "patch": [
      4,
      4,
      12,
      12
    ],
    "fine": [
      24,
      24
    ],
    "fine_origin": [
      2,
      2
    ],
    "coarse_dx_dt": [
      1,
      1
    ],
    "fine_dx_dt": [
      0.5,
      0.5
    ],
    "walls_Y": [
      8,
      15
    ]
  },
  "assumptions": [
    "fluid active populations pass unchanged between fine hops (identity transfer probe)",
    "fine fluid inner ghosts reflect, never collide; outer halo output is invalid",
    "solid destinations omitted; no filtering by coarse source in geometric LINKS",
    "coalescence is equal-weight average of four children of each coarse target",
    "results test these proposed extensions, not current production support or external libraries"
  ],
  "prestream_vs_postpull": "Exact values and validity match on both hops for all three probes",
  "source_files_read_only": {
    "src/CelerisLab/lbm/refinement.py": "554735c5613129eb29f339c6aeeb4f3a3bbc5aba67558be51fbf7c2fb6ac442a",
    "src/CelerisLab/lbm/refinement_stepper.py": "ad57a6a3887b007488b4954b24ff06cd8cde2b12674bdafb97bfda1961ae1da4",
    "src/CelerisLab/lbm/kernels/refinement.cu": "025c59dc9c207a831e78e1635cb3f14fe60b64c021004a0d66e5d01fda8554b5",
    "src/CelerisLab/lbm/kernels/boundary/bounce_back.cuh": "aba3748c564ed91b161d268ef8b737b7c7be96a823063d201f3da684dd845233"
  },
  "script_sha256": "bb4a8587e95835794ce08be3483d603afb8987a59f6c7cde39cf201395f6f541",
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