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62 lines
2.5 KiB
Python
62 lines
2.5 KiB
Python
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#!/usr/bin/env python
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"""Jitter/consensus grid (§6.1): exact oracle, per-(block,node) Exp jitter up to 3 slots.
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jitter_mean {0, 0.1, 0.3, 1.0, 3.0} x {regular, blend} x N {1000, 2000}, 10 replicates, U = 2,
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windowed_fork_choice/prune_arrival OFF (guaranteed-exact full-matrix mode). Writes one
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tail-aggregated row per (topo, N, jitter, rep) to runs/jitter_grid/results.parquet.
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"""
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from __future__ import annotations
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import sys
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from pathlib import Path
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sys.path.insert(0, str(Path(__file__).resolve().parents[1] / "src"))
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import pandas as pd
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from joblib import Parallel, delayed
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from tsi_sim.config import SimConfig
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from tsi_sim.engine import run_trajectory
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JITTERS = [0.0, 0.1, 0.3, 1.0, 3.0]
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TOPOS = ["regular", "blend"]
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NS = [1000, 2000]
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REPS = 10
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EPOCHS = 20
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def _one(topo: str, n: int, jm: float, rep: int) -> dict:
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cfg = SimConfig(n_nodes=n, stake_dist="pareto", topology=topo, degree=6,
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link_latency_mean=0.5, link_latency_dist="geo",
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blend_hops=3, blend_delay_max=4.0,
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max_uncles=2, uncle_window=300, k=256, epochs=EPOCHS,
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genesis_d_factor=0.5, jitter_mean=jm,
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windowed_fork_choice=False, prune_arrival=False, replicate=rep)
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df = pd.DataFrame(run_trajectory(cfg))
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t = df[df.epoch >= EPOCHS // 2]
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return dict(topo=topo, N=n, jitter=jm, rep=rep,
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range_ratio=float(t.range_ratio.max()),
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agreement_window=float(t.agreement_window.min()),
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agreement_tip=float(t.agreement_tip.mean()),
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mean_ratio=float(t.mean_ratio.mean()))
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def main() -> None:
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out = Path(__file__).resolve().parents[1] / "runs" / "jitter_grid"
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out.mkdir(parents=True, exist_ok=True)
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jobs = [(t, n, j, r) for t in TOPOS for n in NS for j in JITTERS for r in range(REPS)]
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rows = Parallel(n_jobs=4, backend="loky", inner_max_num_threads=1)(
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delayed(_one)(t, n, j, r) for t, n, j, r in jobs)
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df = pd.DataFrame(rows)
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df.to_parquet(out / "results.parquet", index=False)
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print(df.groupby("jitter").agg(range_max=("range_ratio", "max"),
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agr_min=("agreement_window", "min"),
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acc_lo=("mean_ratio", "min"),
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acc_hi=("mean_ratio", "max"),
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tip_worst=("agreement_tip", "min")).round(4).to_string())
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print(f"wrote {out/'results.parquet'} ({len(df)} rows)")
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if __name__ == "__main__":
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main()
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