Files
sim-numerics/sweep_rootsjl.py
T

105 lines
4.0 KiB
Python

"""PREREG_roots_jl_2026-09-21: variants A, B, the plain rule and the three library rivals on
the Roots.jl / ModAB bracketing benchmark (corpus_roots_jl.py).
python -u sweep_rootsjl.py run -> sweep_rootsjl.json, then the verdicts
python -u sweep_rootsjl.py --report verdicts only
"""
from __future__ import annotations
import json
import math
import sys
from multiprocessing import Pool
from corpus_roots_jl import build, solved
from sweep_full import MAXFEV, XTOL, make_method
from sweep_oos import CONFIGS as OOS_CONFIGS
from sweep_oos import sign_p
NAMES = ("base", "A", "B", "chandrupatla", "brent", "toms748")
def evaluate(name):
method = make_method(OOS_CONFIGS[name])
probs, _ = build()
res = {}
for pid, f, a, b, ins in probs:
try:
x, n, conv = method(f, a, b, XTOL, MAXFEV)
x = float(x)
except Exception:
x, n, conv = float("nan"), MAXFEV, False
ok = bool(conv and solved(f, x))
over = ok and int(n) > 2 * math.ceil(math.log2(abs(b - a) / XTOL)) + 4
res[pid] = [int(n), ok, bool(over), bool(ins)]
return name, res
def cost(v):
return v[0] if v[1] else MAXFEV
def report(R):
keep_main = lambda pid, v: not v[3]
keep_strict = lambda pid, v: not v[3] and int(pid[1:]) >= 24
keep_ins = lambda pid, v: v[3]
ch = R["chandrupatla"]
for title, keep in (("MAIN (78 out-of-sample)", keep_main),
("STRICT (f24-f91, out-of-sample)", keep_strict),
("IN-SAMPLE overlaps (13, for reference)", keep_ins)):
print(f"\n== {title}")
for k in NAMES:
r = R[k]
sel = {p: v for p, v in r.items() if keep(p, v)}
print(f" {k:<14} total {sum(cost(v) for v in sel.values()):6d} "
f"solved {sum(v[1] for v in sel.values()):3d}/{len(sel)} "
f"violations {sum(v[2] for v in sel.values())}")
for v_name in ("A", "B"):
r = R[v_name]
sel = [p for p, v in r.items() if keep(p, v)]
tot = sum(cost(r[p]) for p in sel)
tot_ch = sum(cost(ch[p]) for p in sel)
w = sum(cost(r[p]) < cost(ch[p]) for p in sel)
l = sum(cost(r[p]) > cost(ch[p]) for p in sel)
t = len(sel) - w - l
viol = sum(r[p][2] for p in sel)
sv, sc = sum(r[p][1] for p in sel), sum(ch[p][1] for p in sel)
r1, r2, r3 = tot < tot_ch, w > l and sign_p(w, l) < 0.05, viol == 0 and sv >= sc
line = (f" {v_name}: R1 {'✓' if r1 else '✗'} ({tot} vs {tot_ch}) R2 {'✓' if r2 else '✗'} "
f"({w}/{t}/{l} p={sign_p(w, l):.2g}) R3 {'✓' if r3 else '✗'} (viol {viol}, "
f"solved {sv} vs {sc})")
if keep is keep_main:
line += " -> " + ("TRANSFERS" if r1 and r2 and r3 else "does NOT transfer")
print(line)
for rn in ("brent", "toms748"):
o = R[rn]
w2 = sum(cost(r[p]) < cost(o[p]) for p in sel)
l2 = sum(cost(r[p]) > cost(o[p]) for p in sel)
print(f" vs {rn:<8} total {tot} vs {sum(cost(o[p]) for p in sel)} "
f"per problem {w2}/{len(sel) - w2 - l2}/{l2} p={sign_p(w2, l2):.2g}")
print("\nPER PROBLEM, out-of-sample (A / B / Chandrupatla / Brent / TOMS748), * = unsolved:")
for p, v in R["A"].items():
if v[3]:
continue
cells = []
for k in ("A", "B", "chandrupatla", "brent", "toms748"):
c = R[k][p]
cells.append(f"{c[0]}{'' if c[1] else '*'}")
print(f" {p}: " + " / ".join(cells))
def main():
if "--report" not in sys.argv:
with Pool(len(NAMES)) as pool:
R = dict(pool.map(evaluate, NAMES))
with open("sweep_rootsjl.json", "w", encoding="utf8") as fh:
json.dump(R, fh)
with open("sweep_rootsjl.json", encoding="utf8") as fh:
R = json.load(fh)
report(R)
print("rootsjl done")
if __name__ == "__main__":
main()