{
  "updated": "2026-10-18",
  "project": "Ibex",
  "scope": "Combinational ALU; Nangate45 typical mapping synthesis estimates",
  "source_commit": "65368a4c41d8e6c2e56ce816e418e21fc4e7b328",
  "patch_sha256": "faa09ea427cca8b6e26f13c581e4d9be0d8997ecf63206023428d407bac222a2",
  "rtl_sha256": "6f6a0ea4eb1358052e028a610eba414aacc63798f3c7e93d4cb5e5ec27e7567a",
  "run": {
    "agents": 512,
    "active_hours": 4,
    "model_profile": "deepseek",
    "model_weights_snapshot": "Not separately captured"
  },
  "results": [
    {
      "configuration": "None (RV32B 0)",
      "area_um2": 1103.63,
      "delay_ps": 1240.76,
      "area_reduction_pct": 7.2853,
      "delay_reduction_pct": 12.792,
      "formally_equivalent": true
    },
    {
      "configuration": "Balanced (RV32B 1)",
      "area_um2": 2003.51,
      "delay_ps": 1514.53,
      "area_reduction_pct": 23.5797,
      "delay_reduction_pct": 35.0127,
      "formally_equivalent": true
    },
    {
      "configuration": "Full (RV32B 2)",
      "area_um2": 4100.39,
      "delay_ps": 1649.38,
      "area_reduction_pct": 14.1894,
      "delay_reduction_pct": 28.3361,
      "formally_equivalent": true
    }
  ],
  "baseline": {
    "0": {
      "equivalent": true,
      "rv32b": 0,
      "area_um2": 1190.35,
      "delay_ps": 1422.76,
      "scope": "combinational ALU, fixed Nangate45 typical mapping; synthesis proxy, not routed silicon"
    },
    "1": {
      "equivalent": true,
      "rv32b": 1,
      "area_um2": 2621.7,
      "delay_ps": 2330.5,
      "scope": "combinational ALU, fixed Nangate45 typical mapping; synthesis proxy, not routed silicon"
    },
    "2": {
      "equivalent": true,
      "rv32b": 2,
      "area_um2": 4778.42,
      "delay_ps": 2301.55,
      "scope": "combinational ALU, fixed Nangate45 typical mapping; synthesis proxy, not routed silicon"
    }
  },
  "selected_comparisons": [
    {
      "id": "solo-0000",
      "patch_sha256": "1785aa71839e72ef80154d8c93983abcf3f71da75706897a54e10e017b884fb1",
      "results": {
        "0": {
          "area_um2": 1190.35,
          "delay_ps": 1422.76,
          "area_reduction_pct": 0.0,
          "delay_reduction_pct": 0.0,
          "equivalent": true
        },
        "1": {
          "area_um2": 2586.58,
          "delay_ps": 2032.47,
          "area_reduction_pct": 1.3395888164168257,
          "delay_reduction_pct": 12.788242866337695,
          "equivalent": true
        },
        "2": {
          "area_um2": 4599.41,
          "delay_ps": 2269.22,
          "area_reduction_pct": 3.746217368921112,
          "delay_reduction_pct": 1.4047055245378304,
          "equivalent": true
        }
      }
    },
    {
      "id": "communicating-0094",
      "patch_sha256": "2805e8ae646009c68f80ae0430b078b3c371282db5d2063e6f57b5a6551b7c39",
      "results": {
        "0": {
          "area_um2": 1184.76,
          "delay_ps": 1286.71,
          "area_reduction_pct": 0.4696097786365261,
          "delay_reduction_pct": 9.562399842559532,
          "equivalent": true
        },
        "1": {
          "area_um2": 2242.65,
          "delay_ps": 1526.59,
          "area_reduction_pct": 14.458175992676503,
          "delay_reduction_pct": 34.49517270971894,
          "equivalent": true
        },
        "2": {
          "area_um2": 4400.97,
          "delay_ps": 1535.62,
          "area_reduction_pct": 7.899054499185921,
          "delay_reduction_pct": 33.2788772783559,
          "equivalent": true
        }
      }
    },
    {
      "id": "communicating-0419",
      "patch_sha256": "fac6fe8dc5d0bae540e5d5f0f1c0e68c6a86f5201d6c26fec995c5af9ea56ab8",
      "results": {
        "0": {
          "area_um2": 1108.95,
          "delay_ps": 1139.2,
          "area_reduction_pct": 6.838324862435408,
          "delay_reduction_pct": 19.930276364249767,
          "equivalent": true
        },
        "1": {
          "area_um2": 2090.49,
          "delay_ps": 1561.89,
          "area_reduction_pct": 20.262043712095213,
          "delay_reduction_pct": 32.98047629264106,
          "equivalent": true
        },
        "2": {
          "area_um2": 4229.93,
          "delay_ps": 1586.57,
          "area_reduction_pct": 11.478480334503871,
          "delay_reduction_pct": 31.06515174556278,
          "equivalent": true
        }
      }
    },
    {
      "id": "communicating-0400",
      "patch_sha256": "faa09ea427cca8b6e26f13c581e4d9be0d8997ecf63206023428d407bac222a2",
      "results": {
        "0": {
          "area_um2": 1103.63,
          "delay_ps": 1240.76,
          "area_reduction_pct": 7.285252236737083,
          "delay_reduction_pct": 12.792038010627227,
          "equivalent": true
        },
        "1": {
          "area_um2": 2003.51,
          "delay_ps": 1514.53,
          "area_reduction_pct": 23.579738337719792,
          "delay_reduction_pct": 35.01265822784811,
          "equivalent": true
        },
        "2": {
          "area_um2": 4100.39,
          "delay_ps": 1649.38,
          "area_reduction_pct": 14.18941825959208,
          "delay_reduction_pct": 28.336121309552265,
          "equivalent": true
        }
      }
    },
    {
      "id": "independent-0070",
      "patch_sha256": "300a1e4751132b2bf2d7a7dc04efb6d495cdaf8cf0cfdda618b6a785922c90de",
      "results": {
        "0": {
          "area_um2": 1153.11,
          "delay_ps": 1285.15,
          "area_reduction_pct": 3.1284916201117285,
          "delay_reduction_pct": 9.672045882650615,
          "equivalent": true
        },
        "1": {
          "area_um2": 2459.17,
          "delay_ps": 1652.51,
          "area_reduction_pct": 6.199412594881171,
          "delay_reduction_pct": 29.092040334692125,
          "equivalent": true
        },
        "2": {
          "area_um2": 4597.81,
          "delay_ps": 1602.11,
          "area_reduction_pct": 3.7797012401588725,
          "delay_reduction_pct": 30.389954595815873,
          "equivalent": true
        }
      }
    },
    {
      "id": "independent-0263",
      "patch_sha256": "c6b997004385ec35c7797082cea8d1844e1e5ed43a343d1d752ba6acd0693a7b",
      "results": {
        "0": {
          "area_um2": 1167.21,
          "delay_ps": 1304.21,
          "area_reduction_pct": 1.9439660604023912,
          "delay_reduction_pct": 8.332396187691526,
          "equivalent": true
        },
        "1": {
          "area_um2": 2424.06,
          "delay_ps": 1694.62,
          "area_reduction_pct": 7.538619979402672,
          "delay_reduction_pct": 27.28513194593435,
          "equivalent": true
        },
        "2": {
          "area_um2": 4612.17,
          "delay_ps": 1625.99,
          "area_reduction_pct": 3.4791834957998646,
          "delay_reduction_pct": 29.352392952575446,
          "equivalent": true
        }
      }
    },
    {
      "id": "independent-0425",
      "patch_sha256": "1d64b1e369a5c883ac9226947a9485089101d6757228a8685a10b032ff92dee1",
      "results": {
        "0": {
          "area_um2": 1185.03,
          "delay_ps": 1336.77,
          "area_reduction_pct": 0.4469273743016755,
          "delay_reduction_pct": 6.043886530405695,
          "equivalent": true
        },
        "1": {
          "area_um2": 2242.38,
          "delay_ps": 1842.03,
          "area_reduction_pct": 14.46847465385055,
          "delay_reduction_pct": 20.959879854108564,
          "equivalent": true
        },
        "2": {
          "area_um2": 4397.51,
          "delay_ps": 1718.61,
          "area_reduction_pct": 7.971463370737608,
          "delay_reduction_pct": 25.328148421715813,
          "equivalent": true
        }
      }
    }
  ],
  "verification": "Separate exact-patch equivalence and synthesis checks using Yosys 0.33, sv2v 0.0.13 and Nangate45 typical. All three modes passed for all seven selected candidates.",
  "collaboration_observation": {
    "description": "Agent 0400 adopted the same RTL published earlier by 0329, with explicit credit in its notes. File hashes match.",
    "rtl_sha256": "6f6a0ea4eb1358052e028a610eba414aacc63798f3c7e93d4cb5e5ec27e7567a",
    "scope": "Artifact reuse and attribution; no causal performance claim"
  },
  "comparison_scope": [
    "Solo started its wallclock earlier:15:43:42 lifecycle versus16:14:08 for512arms; full active lifetime was preserved for all3.",
    "Shared host pressure/inference collapse and reclaimer incidents affected the campaign; elapsed API active_seconds does not quantify productive inference or equal delivered compute. See CURRENT-STATE chronology, especially16:20+ memory incident and17:xx recovery. Per-arm lost productive time is unknown.",
    "Identical18:44 continuation prompt was an external symmetric intervention to all3arms; no supplied roles, peer artifacts, hidden inputs or evaluation changes in its recorded text.",
    "No frontier coding-agent arm is available in this comparison.",
    "Same seed/profile and equal fleet resource classes do not establish equal spending; actual token use/costs unknown.",
    "Final current canonicalpatch paths:455communicating+458independent=913, not913 independently correct or unique implementations. Two resultdirs missing:communicating0507,independent0047; missing shared dir does not prove private-work loss.",
    "Full-roster metadata covers512expectedIDs each; complete3modeJSON harvest was partial:132communicating and87independent authors in root rv32b-N/result.json or reports/rv32b-N/result.json locations only. Other layouts not exhaustively searched.",
    "Seven verified candidates are a disclosed selected subset, not best-of512 or proof that messaging caused improvement.",
    "Formal complete combinational equivalence and fixed mapping are ALU component evidence, not routed area/power, wholeCPU speed or hardware tapeout.",
    "Candidate identity names the submitting agent, not sole authorship. Peer credits and stale notes are qualified by the exact manual source review; shared formulation alone does not establish causal coordination."
  ],
  "whole_processor_or_routed_silicon_measured": false,
  "human_page": "/examples/circuit-design/"
}