{
  "kind": "illustrative-model",
  "baselineMinutes": 60,
  "nonParallelFraction": 0.1,
  "formula": "elapsed = baseline * (nonParallelFraction + (1 - nonParallelFraction) / gpus); allocatedGpuMinutes = gpus * elapsed",
  "assumptions": "Fixed work; remaining fraction scales perfectly; all GPUs reserved for full elapsed run; no extra communication, queueing, memory or storage overhead.",
  "rows": [
    {
      "gpus": 1,
      "elapsedMinutes": 60.0,
      "allocatedGpuMinutes": 60.0
    },
    {
      "gpus": 2,
      "elapsedMinutes": 33.0,
      "allocatedGpuMinutes": 66.0
    },
    {
      "gpus": 4,
      "elapsedMinutes": 19.5,
      "allocatedGpuMinutes": 78.0
    },
    {
      "gpus": 8,
      "elapsedMinutes": 12.75,
      "allocatedGpuMinutes": 102.0
    }
  ]
}