{
  "demonstration": "Synthetic cloud workload packing on the server; not the full Istimthal engine or provider pricing.",
  "schemaVersion": 1,
  "createdAt": "2026-10-05T14:39:05.069Z",
  "seed": 4242,
  "inputs": {
    "kind": "mixed",
    "size": 24,
    "mode": "balanced",
    "stressed": false,
    "seed": 4242,
    "workloads": [
      {
        "id": "work-01",
        "cpu": 2,
        "memory": 18
      },
      {
        "id": "work-02",
        "cpu": 8,
        "memory": 6
      },
      {
        "id": "work-03",
        "cpu": 4,
        "memory": 9
      },
      {
        "id": "work-04",
        "cpu": 1,
        "memory": 20
      },
      {
        "id": "work-05",
        "cpu": 5,
        "memory": 7
      },
      {
        "id": "work-06",
        "cpu": 4,
        "memory": 15
      },
      {
        "id": "work-07",
        "cpu": 2,
        "memory": 27
      },
      {
        "id": "work-08",
        "cpu": 5,
        "memory": 8
      },
      {
        "id": "work-09",
        "cpu": 5,
        "memory": 8
      },
      {
        "id": "work-10",
        "cpu": 2,
        "memory": 16
      },
      {
        "id": "work-11",
        "cpu": 4,
        "memory": 4
      },
      {
        "id": "work-12",
        "cpu": 2,
        "memory": 8
      },
      {
        "id": "work-13",
        "cpu": 1,
        "memory": 17
      },
      {
        "id": "work-14",
        "cpu": 6,
        "memory": 6
      },
      {
        "id": "work-15",
        "cpu": 4,
        "memory": 12
      },
      {
        "id": "work-16",
        "cpu": 3,
        "memory": 19
      },
      {
        "id": "work-17",
        "cpu": 4,
        "memory": 8
      },
      {
        "id": "work-18",
        "cpu": 2,
        "memory": 14
      },
      {
        "id": "work-19",
        "cpu": 3,
        "memory": 19
      },
      {
        "id": "work-20",
        "cpu": 8,
        "memory": 3
      },
      {
        "id": "work-21",
        "cpu": 5,
        "memory": 7
      },
      {
        "id": "work-22",
        "cpu": 2,
        "memory": 22
      },
      {
        "id": "work-23",
        "cpu": 7,
        "memory": 6
      },
      {
        "id": "work-24",
        "cpu": 4,
        "memory": 13
      }
    ]
  },
  "catalog": [
    {
      "id": "small",
      "name": "Small",
      "cpu": 8,
      "memory": 32,
      "cost": 10
    },
    {
      "id": "medium",
      "name": "Medium",
      "cpu": 16,
      "memory": 64,
      "cost": 19
    },
    {
      "id": "large",
      "name": "Large",
      "cpu": 32,
      "memory": 128,
      "cost": 36
    },
    {
      "id": "memory",
      "name": "Memory",
      "cpu": 16,
      "memory": 128,
      "cost": 28
    },
    {
      "id": "cpu",
      "name": "CPU",
      "cpu": 32,
      "memory": 64,
      "cost": 30
    }
  ],
  "search": {
    "approach": "balanced",
    "evaluated": 256,
    "feasible": 256,
    "budget": 256,
    "searchInputsStressed": false,
    "frozenAllocationRechecked": false,
    "durationMilliseconds": 12
  },
  "baseline": {
    "method": "Input-order first fit; cheapest feasible new host",
    "plan": {
      "hosts": [
        {
          "id": "host-1",
          "type": "small",
          "workloadIds": [
            "work-01",
            "work-03"
          ]
        },
        {
          "id": "host-2",
          "type": "small",
          "workloadIds": [
            "work-02"
          ]
        },
        {
          "id": "host-3",
          "type": "small",
          "workloadIds": [
            "work-04",
            "work-05"
          ]
        },
        {
          "id": "host-4",
          "type": "small",
          "workloadIds": [
            "work-06",
            "work-10"
          ]
        },
        {
          "id": "host-5",
          "type": "small",
          "workloadIds": [
            "work-07",
            "work-11"
          ]
        },
        {
          "id": "host-6",
          "type": "small",
          "workloadIds": [
            "work-08",
            "work-12"
          ]
        },
        {
          "id": "host-7",
          "type": "small",
          "workloadIds": [
            "work-09",
            "work-13"
          ]
        },
        {
          "id": "host-8",
          "type": "small",
          "workloadIds": [
            "work-14",
            "work-18"
          ]
        },
        {
          "id": "host-9",
          "type": "small",
          "workloadIds": [
            "work-15",
            "work-16"
          ]
        },
        {
          "id": "host-10",
          "type": "small",
          "workloadIds": [
            "work-17",
            "work-19"
          ]
        },
        {
          "id": "host-11",
          "type": "small",
          "workloadIds": [
            "work-20"
          ]
        },
        {
          "id": "host-12",
          "type": "small",
          "workloadIds": [
            "work-21",
            "work-22"
          ]
        },
        {
          "id": "host-13",
          "type": "small",
          "workloadIds": [
            "work-23"
          ]
        },
        {
          "id": "host-14",
          "type": "small",
          "workloadIds": [
            "work-24"
          ]
        }
      ]
    },
    "verification": {
      "valid": true,
      "errors": [],
      "reserveFraction": 1,
      "totalCost": 140,
      "hostCount": 14,
      "assignedWorkloads": 24,
      "hosts": [
        {
          "id": "host-1",
          "type": "small",
          "cpu": 6,
          "memory": 27,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-01",
            "work-03"
          ]
        },
        {
          "id": "host-2",
          "type": "small",
          "cpu": 8,
          "memory": 6,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-02"
          ]
        },
        {
          "id": "host-3",
          "type": "small",
          "cpu": 6,
          "memory": 27,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-04",
            "work-05"
          ]
        },
        {
          "id": "host-4",
          "type": "small",
          "cpu": 6,
          "memory": 31,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-06",
            "work-10"
          ]
        },
        {
          "id": "host-5",
          "type": "small",
          "cpu": 6,
          "memory": 31,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-07",
            "work-11"
          ]
        },
        {
          "id": "host-6",
          "type": "small",
          "cpu": 7,
          "memory": 16,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-08",
            "work-12"
          ]
        },
        {
          "id": "host-7",
          "type": "small",
          "cpu": 6,
          "memory": 25,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-09",
            "work-13"
          ]
        },
        {
          "id": "host-8",
          "type": "small",
          "cpu": 8,
          "memory": 20,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-14",
            "work-18"
          ]
        },
        {
          "id": "host-9",
          "type": "small",
          "cpu": 7,
          "memory": 31,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-15",
            "work-16"
          ]
        },
        {
          "id": "host-10",
          "type": "small",
          "cpu": 7,
          "memory": 27,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-17",
            "work-19"
          ]
        },
        {
          "id": "host-11",
          "type": "small",
          "cpu": 8,
          "memory": 3,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-20"
          ]
        },
        {
          "id": "host-12",
          "type": "small",
          "cpu": 7,
          "memory": 29,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-21",
            "work-22"
          ]
        },
        {
          "id": "host-13",
          "type": "small",
          "cpu": 7,
          "memory": 6,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-23"
          ]
        },
        {
          "id": "host-14",
          "type": "small",
          "cpu": 4,
          "memory": 13,
          "cpuCapacity": 8,
          "memoryCapacity": 32,
          "cpuLimit": 8,
          "memoryLimit": 32,
          "cost": 10,
          "workloadIds": [
            "work-24"
          ]
        }
      ]
    }
  },
  "strongerBaseline": {
    "method": "Five-rule heuristic portfolio",
    "evaluated": 5,
    "plan": {
      "hosts": [
        {
          "id": "host-1",
          "type": "large",
          "workloadIds": [
            "work-02",
            "work-07",
            "work-20",
            "work-23",
            "work-06",
            "work-16"
          ]
        },
        {
          "id": "host-2",
          "type": "large",
          "workloadIds": [
            "work-19",
            "work-14",
            "work-22",
            "work-24",
            "work-08",
            "work-09",
            "work-15",
            "work-01",
            "work-04"
          ]
        },
        {
          "id": "host-3",
          "type": "large",
          "workloadIds": [
            "work-05",
            "work-21",
            "work-03",
            "work-10",
            "work-17",
            "work-18",
            "work-13",
            "work-11",
            "work-12"
          ]
        }
      ]
    },
    "verification": {
      "valid": true,
      "errors": [],
      "reserveFraction": 1,
      "totalCost": 108,
      "hostCount": 3,
      "assignedWorkloads": 24,
      "hosts": [
        {
          "id": "host-1",
          "type": "large",
          "cpu": 32,
          "memory": 76,
          "cpuCapacity": 32,
          "memoryCapacity": 128,
          "cpuLimit": 32,
          "memoryLimit": 128,
          "cost": 36,
          "workloadIds": [
            "work-02",
            "work-07",
            "work-20",
            "work-23",
            "work-06",
            "work-16"
          ]
        },
        {
          "id": "host-2",
          "type": "large",
          "cpu": 32,
          "memory": 126,
          "cpuCapacity": 32,
          "memoryCapacity": 128,
          "cpuLimit": 32,
          "memoryLimit": 128,
          "cost": 36,
          "workloadIds": [
            "work-19",
            "work-14",
            "work-22",
            "work-24",
            "work-08",
            "work-09",
            "work-15",
            "work-01",
            "work-04"
          ]
        },
        {
          "id": "host-3",
          "type": "large",
          "cpu": 29,
          "memory": 90,
          "cpuCapacity": 32,
          "memoryCapacity": 128,
          "cpuLimit": 32,
          "memoryLimit": 128,
          "cost": 36,
          "workloadIds": [
            "work-05",
            "work-21",
            "work-03",
            "work-10",
            "work-17",
            "work-18",
            "work-13",
            "work-11",
            "work-12"
          ]
        }
      ]
    }
  },
  "candidate": {
    "plan": {
      "hosts": [
        {
          "id": "host-1",
          "type": "large",
          "workloadIds": [
            "work-03",
            "work-18",
            "work-05",
            "work-22",
            "work-17",
            "work-16",
            "work-12",
            "work-04",
            "work-08",
            "work-15"
          ]
        },
        {
          "id": "host-2",
          "type": "large",
          "workloadIds": [
            "work-13",
            "work-23",
            "work-07",
            "work-11",
            "work-24",
            "work-19",
            "work-02",
            "work-10"
          ]
        },
        {
          "id": "host-3",
          "type": "cpu",
          "workloadIds": [
            "work-06",
            "work-14",
            "work-21",
            "work-09",
            "work-01",
            "work-20"
          ]
        }
      ]
    },
    "verification": {
      "valid": true,
      "errors": [],
      "reserveFraction": 1,
      "totalCost": 102,
      "hostCount": 3,
      "assignedWorkloads": 24,
      "hosts": [
        {
          "id": "host-1",
          "type": "large",
          "cpu": 32,
          "memory": 127,
          "cpuCapacity": 32,
          "memoryCapacity": 128,
          "cpuLimit": 32,
          "memoryLimit": 128,
          "cost": 36,
          "workloadIds": [
            "work-03",
            "work-18",
            "work-05",
            "work-22",
            "work-17",
            "work-16",
            "work-12",
            "work-04",
            "work-08",
            "work-15"
          ]
        },
        {
          "id": "host-2",
          "type": "large",
          "cpu": 31,
          "memory": 108,
          "cpuCapacity": 32,
          "memoryCapacity": 128,
          "cpuLimit": 32,
          "memoryLimit": 128,
          "cost": 36,
          "workloadIds": [
            "work-13",
            "work-23",
            "work-07",
            "work-11",
            "work-24",
            "work-19",
            "work-02",
            "work-10"
          ]
        },
        {
          "id": "host-3",
          "type": "cpu",
          "cpu": 30,
          "memory": 57,
          "cpuCapacity": 32,
          "memoryCapacity": 64,
          "cpuLimit": 32,
          "memoryLimit": 64,
          "cost": 30,
          "workloadIds": [
            "work-06",
            "work-14",
            "work-21",
            "work-09",
            "work-01",
            "work-20"
          ]
        }
      ]
    }
  },
  "costDifference": 38,
  "costReductionPercent": 27.14,
  "eligibleForReview": true,
  "strongerComparison": {
    "costDifference": 6,
    "costReductionPercent": 5.56,
    "eligibleForReview": true
  },
  "limits": "Both comparisons use the selected capacity policy. The five-rule heuristic portfolio uses five fixed ordering and packing rules, including input-order first fit; it is not a commercial solver benchmark. A bounded search of allocations in this demonstration, not a proof of global optimality or production reliability, and no guarantee of real-world savings."
}