{
 "experiment": "rho_engine throughput (laptop)",
 "timestamp_utc": "2026-11-01T06:24:59+00:00",
 "host": {
  "hostname": "MacBookPro-de-simon-pierre-2.local",
  "cpu": "Apple M5 Max",
  "cores": 18,
  "os": "27.0",
  "machine": "arm64",
  "rustc": "rustc 1.95.0 (59807616e 2026-04-14)"
 },
 "binary": "experiments/synthetic_ecdlp/rho_engine/target/release/rho_engine (cargo build --release, lto=fat)",
 "instances": "experiments/synthetic_ecdlp/rho_engine/bench/instances.json (seed 3434, gen_bench_instances.py)",
 "command_template": "rho_engine solve --p \u2026 --a \u2026 --b \u2026 --n \u2026 --gx \u2026 --gy \u2026 --qx \u2026 --qy \u2026 --expected-d \u2026 --seed S <args>",
 "note": "single runs (not \u2265 10 repetitions): engine validation / throughput only, not a scaling experiment; the scaling driver is written by another process",
 "runs_40b": [
  {
   "label": "40b",
   "args": "--alg rho --threads 1",
   "ok": true,
   "match": true,
   "iterations": 818560,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 880054,
   "group_ops_per_cpu_s": 36339026.442245655,
   "group_ops_per_wall_s": 35447574.90428634,
   "cpu_s": 0.024217875,
   "wall_s": 0.024826917,
   "fruitless_cycles": 0,
   "lookahead_rejections": 0,
   "dp_count": 3289,
   "dp_bytes": 473088,
   "restarts": 3418,
   "peak_rss_bytes": 3211264,
   "ops": {
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    "dbl": 198,
    "inv": 67889,
    "mul": 5083250
   }
  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1",
   "ok": true,
   "match": true,
   "iterations": 2022272,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 2168188,
   "group_ops_per_cpu_s": 36345529.1793001,
   "group_ops_per_wall_s": 35793396.5060618,
   "cpu_s": 0.059654875,
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   "fruitless_cycles": 0,
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   "dp_count": 8062,
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   "restarts": 8191,
   "peak_rss_bytes": 3194880,
   "ops": {
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    "dbl": 198,
    "inv": 161715,
    "mul": 12539980
   }
  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1",
   "ok": true,
   "match": true,
   "iterations": 1116416,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 1196474,
   "group_ops_per_cpu_s": 36079216.90627124,
   "group_ops_per_wall_s": 35574098.29445474,
   "cpu_s": 0.033162416,
   "wall_s": 0.033633291,
   "fruitless_cycles": 0,
   "lookahead_rejections": 0,
   "dp_count": 4348,
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   "restarts": 4477,
   "peak_rss_bytes": 3211264,
   "ops": {
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    "dbl": 198,
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    "mul": 6921424
   }
  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1 --walks 256",
   "ok": true,
   "match": true,
   "iterations": 809728,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 872957,
   "group_ops_per_cpu_s": 39081574.47139231,
   "group_ops_per_wall_s": 38520598.48161354,
   "cpu_s": 0.022336792,
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   "fruitless_cycles": 0,
   "lookahead_rejections": 0,
   "dp_count": 3258,
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   "restarts": 3515,
   "peak_rss_bytes": 3244032,
   "ops": {
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    "mul": 5041927
   }
  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1 --walks 512",
   "ok": true,
   "match": true,
   "iterations": 792576,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 858682,
   "group_ops_per_cpu_s": 37146116.557500705,
   "group_ops_per_wall_s": 36367366.46761959,
   "cpu_s": 0.023116333000000003,
   "wall_s": 0.023611333,
   "fruitless_cycles": 0,
   "lookahead_rejections": 0,
   "dp_count": 3166,
   "dp_bytes": 473088,
   "restarts": 3679,
   "peak_rss_bytes": 3293184,
   "ops": {
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    "dbl": 198,
    "inv": 67654,
    "mul": 4950876
   }
  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1 --neg",
   "ok": true,
   "match": true,
   "iterations": 604971,
   "expected_iterations": 757933.7935079867,
   "group_ops": 683128,
   "group_ops_per_cpu_s": 25548558.091528002,
   "group_ops_per_wall_s": 24967367.58828331,
   "cpu_s": 0.026738417000000004,
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   "fruitless_cycles": 522,
   "lookahead_rejections": 33553,
   "dp_count": 2336,
   "dp_bytes": 236544,
   "restarts": 2465,
   "peak_rss_bytes": 2949120,
   "ops": {
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    "dbl": 720,
    "inv": 52446,
    "mul": 4590459
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  },
  {
   "label": "40b",
   "args": "--alg rho --threads 1 --neg --r 128",
   "ok": true,
   "match": true,
   "iterations": 761951,
   "expected_iterations": 757933.7935079867,
   "group_ops": 828098,
   "group_ops_per_cpu_s": 25743646.07446687,
   "group_ops_per_wall_s": 25262454.38043048,
   "cpu_s": 0.032167083,
   "wall_s": 0.032779792,
   "fruitless_cycles": 15,
   "lookahead_rejections": 5998,
   "dp_count": 3104,
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   "restarts": 3234,
   "peak_rss_bytes": 2932736,
   "ops": {
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    "mul": 5547370
   }
  },
  {
   "label": "40b-j0",
   "args": "--alg rho --threads 1 --neg --aut3 --r 128",
   "ok": true,
   "match": true,
   "iterations": 567331,
   "expected_iterations": 432419.3862024441,
   "group_ops": 617062,
   "group_ops_per_cpu_s": 19354203.5160702,
   "group_ops_per_wall_s": 18915106.61837147,
   "cpu_s": 0.031882583000000006,
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   "fruitless_cycles": 5,
   "lookahead_rejections": 4470,
   "dp_count": 2263,
   "dp_bytes": 236544,
   "restarts": 2392,
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   "ops": {
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  },
  {
   "label": "40b",
   "args": "--alg rho --threads 16",
   "ok": true,
   "match": true,
   "iterations": 3687168,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 3982117,
   "group_ops_per_cpu_s": 28906611.80408115,
   "group_ops_per_wall_s": 329601109.12232417,
   "cpu_s": 0.13775799900000002,
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   "fruitless_cycles": 0,
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   "dp_count": 14576,
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   "restarts": 16626,
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   "ops": {
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    "mul": 22950441
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  },
  {
   "label": "40b",
   "args": "--alg kangaroo --threads 1",
   "ok": true,
   "match": true,
   "iterations": 1274944,
   "expected_iterations": 1710473.4052641683,
   "group_ops": 1275756,
   "group_ops_per_cpu_s": 46646695.18631405,
   "group_ops_per_wall_s": 45885482.602946825,
   "cpu_s": 0.027349333000000003,
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   "fruitless_cycles": 0,
   "lookahead_rejections": null,
   "dp_count": 4865,
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   "restarts": 0,
   "peak_rss_bytes": 3702784,
   "ops": {
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    "dbl": 118,
    "inv": 20733,
    "mul": 7612376
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  },
  {
   "label": "40b",
   "args": "--alg kangaroo --threads 8",
   "ok": true,
   "match": true,
   "iterations": 1053504,
   "expected_iterations": 1710473.4052641683,
   "group_ops": 1057816,
   "group_ops_per_cpu_s": 34160653.6579991,
   "group_ops_per_wall_s": 238690359.3388616,
   "cpu_s": 0.030965918,
   "wall_s": 0.00443175,
   "fruitless_cycles": 0,
   "lookahead_rejections": null,
   "dp_count": 4025,
   "dp_bytes": 946176,
   "restarts": 0,
   "peak_rss_bytes": 3932160,
   "ops": {
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    "dbl": 118,
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    "mul": 6301156
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  },
  {
   "label": "40b",
   "args": "--alg bsgs --threads 1",
   "ok": true,
   "match": true,
   "iterations": 793702,
   "expected_iterations": null,
   "group_ops": 1652210,
   "group_ops_per_cpu_s": 38779455.819231465,
   "group_ops_per_wall_s": 38199878.719240405,
   "cpu_s": 0.042605291,
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   "fruitless_cycles": 0,
   "lookahead_rejections": null,
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   "ops": {
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  },
  {
   "label": "40b",
   "args": "--alg rho --cycle brent",
   "ok": true,
   "match": true,
   "iterations": 820986,
   "expected_iterations": 1071880.2501598836,
   "group_ops": 821988,
   "group_ops_per_cpu_s": 9679286.524899945,
   "group_ops_per_wall_s": 9570631.007201364,
   "cpu_s": 0.08492237500000001,
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   "fruitless_cycles": 0,
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   "ops": {
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    "mul": 3287148
   }
  }
 ],
 "runs_48_62b": [
  {
   "label": "48b",
   "args": "--alg rho --threads 1",
   "seed": 1,
   "ok": true,
   "match": true,
   "iterations": 24591744,
   "expected_iterations": 15610924.350405136,
   "group_ops": 25109596,
   "group_ops_per_cpu_s": 45797340.440173544,
   "group_ops_per_wall_s": 45609497.136305064,
   "cpu_s": 0.548276292,
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   "fruitless_cycles": 0,
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   "dp_count": 24023,
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   "restarts": 24152,
   "peak_rss_bytes": 4816896,
   "threads": 1
  },
  {
   "label": "48b",
   "args": "--alg rho --threads 1",
   "seed": 2,
   "ok": true,
   "match": true,
   "iterations": 30817408,
   "expected_iterations": 15610924.350405136,
   "group_ops": 31466447,
   "group_ops_per_cpu_s": 45705472.893354565,
   "group_ops_per_wall_s": 45593400.721835315,
   "cpu_s": 0.68846125,
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   "fruitless_cycles": 0,
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   "dp_count": 30155,
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   "restarts": 30284,
   "peak_rss_bytes": 4816896,
   "threads": 1
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  {
   "label": "48b",
   "args": "--alg rho --threads 1",
   "seed": 3,
   "ok": true,
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   "iterations": 15180032,
   "expected_iterations": 15610924.350405136,
   "group_ops": 15497692,
   "group_ops_per_cpu_s": 45837180.37259068,
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   "cpu_s": 0.338103083,
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   "fruitless_cycles": 0,
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   "dp_count": 14672,
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   "restarts": 14801,
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   "threads": 1
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  {
   "label": "48b",
   "args": "--alg rho --threads 1 --neg",
   "seed": 1,
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   "iterations": 3297585,
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   "group_ops": 3551141,
   "group_ops_per_cpu_s": 29883405.99203549,
   "group_ops_per_wall_s": 29829812.68159049,
   "cpu_s": 0.11883320800000001,
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   "fruitless_cycles": 2743,
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   "threads": 1
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  {
   "label": "48b",
   "args": "--alg rho --threads 1 --neg --r 128",
   "seed": 1,
   "ok": true,
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   "iterations": 10905345,
   "expected_iterations": 11038590.468761671,
   "group_ops": 11227077,
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   "group_ops_per_wall_s": 30590111.657691985,
   "cpu_s": 0.365661375,
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   "fruitless_cycles": 162,
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  {
   "label": "48b",
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   "iterations": 7922105,
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   "fruitless_cycles": 2,
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  {
   "label": "48b",
   "args": "--alg kangaroo --threads 1",
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   "iterations": 28446848,
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  {
   "label": "48b",
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  {
   "label": "48b",
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  {
   "label": "56b",
   "args": "--alg rho --threads 1",
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  {
   "label": "56b",
   "args": "--alg rho --threads 1 --neg --r 128",
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   "group_ops_per_wall_s": 30119138.558060113,
   "cpu_s": 6.185837458,
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  {
   "label": "56b",
   "args": "--alg kangaroo --threads 1",
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  {
   "label": "56b",
   "args": "--alg rho --threads 2",
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   "iterations": 251270912,
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   "group_ops": 252824474,
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   "group_ops_per_wall_s": 88971972.70610732,
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  {
   "label": "56b",
   "args": "--alg rho --threads 4",
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  {
   "label": "56b",
   "args": "--alg rho --threads 8",
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   "iterations": 434961024,
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   "group_ops": 437667839,
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   "cpu_s": 10.478198373,
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   "fruitless_cycles": 0,
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  {
   "label": "56b",
   "args": "--alg rho --threads 12",
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   "iterations": 463601408,
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   "fruitless_cycles": 0,
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  {
   "label": "56b",
   "args": "--alg rho --threads 16",
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   "iterations": 616153984,
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  {
   "label": "62b-j0",
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 ]
}