{
  "device": "NVIDIA GB10",
  "compute_capability": "SM121",
  "torch": "2.9.1+cu130",
  "attention": "sage2",
  "resolution": [
    1344,
    768
  ],
  "frames": 124,
  "packed_tokens": 37810,
  "steps": 12,
  "seed": 440420,
  "feature_flag": "H3_FUSED_ELEMENTWISE=1",
  "isolated_cuda_tests": {
    "modulation_bit_exact": true,
    "gate_add_bit_exact": true
  },
  "real_block_results": [
    {
      "block": 0,
      "eager_p50_seconds": 0.5083600514917634,
      "fused_p50_seconds": 0.4901100995193701,
      "speedup": 1.0372364331816264,
      "latency_reduction": 0.03589965796651318,
      "max_abs_difference": 0.0,
      "checksum": -8279139.0
    },
    {
      "block": 24,
      "eager_p50_seconds": 0.5089578525221441,
      "fused_p50_seconds": 0.4891547074948903,
      "speedup": 1.040484420826024,
      "latency_reduction": 0.03890920422804989,
      "max_abs_difference": 0.0,
      "checksum": 89071408.0
    },
    {
      "block": 49,
      "eager_p50_seconds": 0.5089952205016743,
      "fused_p50_seconds": 0.4891957634827122,
      "speedup": 1.0404734842305352,
      "latency_reduction": 0.03889910203763303,
      "max_abs_difference": 0.0,
      "checksum": -40617144320.0
    }
  ],
  "sampling_12_step": {
    "eager_seconds": 310.109976747015,
    "fused_seconds": 301.04568115097936,
    "speedup": 1.0301093693202321,
    "latency_reduction": 0.029229293720628102,
    "eager_checksums": [
      -91481.7890625,
      678.401611328125
    ],
    "fused_checksums": [
      -91481.7890625,
      678.401611328125
    ]
  },
  "sampling_2_step_memory": {
    "eager_peak_allocated_bytes": 19278355968,
    "fused_peak_allocated_bytes": 18869530112,
    "allocated_bytes_saved": 408825856,
    "eager_peak_reserved_bytes": 21976055808,
    "fused_peak_reserved_bytes": 21846032384,
    "reserved_bytes_saved": 130023424
  },
  "validation": {
    "deployed_tests": "32 passed",
    "block_parity": "torch.equal at blocks 0, 24, and 49",
    "sampling_parity": "identical video and audio checksums after 12 steps",
    "generic_default": "eager path remains default unless H3_FUSED_ELEMENTWISE is enabled",
    "spark_default": "enabled in Spark compose files"
  }
}