stats.py

#!/usr/bin/python
# -*- coding: utf-8 -*-# ***************************************************************************
# *   Copyright (c) 2015-2024 by Pierre-Henri WUILLEMIN                          *
# *   {prenom.nom}_at_lip6.fr                                               *
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import sys
from math import sqrt
from subprocess import PIPE, Popen, STDOUT
from time import localtime
from typing import Any

from .builder import getCmake, getMake, getPost
from .configuration import cfg
from .utils import notif, safe_cd


def simple_stats(n, s, s2) -> tuple[float, float, float]:
  v = (s2 / n - pow(s / n, 2))
  if n == 1:
    sig = sqrt(v)
    halfA = 0
  else:
    sig = sqrt(v / (n - 1))
    halfA = 1.96 * sig
  return (s / n), sig, halfA


def profileAgrum(current: dict[str, Any]):
  dic = {k: current[k] for k in current.keys()}
  dic['stats'] = False
  dic['fixed_seed'] = True
  dic['no-fun'] = True

  target = "+".join(current['targets'])
  safe_cd(current, "build")
  safe_cd(current, "agrum")
  safe_cd(current, current["mode"])

  notif("[cmake]")
  cm = getCmake(dic, target)
  proc = Popen(cm, shell=True, stdout=PIPE, stderr=STDOUT)
  out = proc.stdout.readlines()
  if current['verbose']:
    for line in out:
      print(line, end="")

  notif("[make]")
  ma = getMake(dic, target)
  proc = Popen(ma, shell=True, stdout=PIPE, stderr=STDOUT)
  out = proc.stdout.readlines()
  if current['verbose']:
    for line in out:
      print(line, end="")

  po, _ = getPost(dic, target)

  notif(f"[{cfg.nbr_tests_for_stats} runs] (please be patient) ...")
  sdt = 0
  sdt2 = 0

  dmin = float('inf')
  dmax = float('-inf')

  mean = halfA = 0

  notif("")
  barre = "-------------|------------------|-------------------|"
  notif(barre)
  notif("  time   #it |    XP (stdev)    | confid. interval  |")
  notif(barre)
  for i in range(cfg.nbr_tests_for_stats):
    dt = 0
    while dt == 0:
      proc = Popen(po, shell=True, stdout=PIPE, stderr=STDOUT)

      out = proc.stdout.readlines()
      for line in out:
        if b"Profiling" in line:
          t = line.split(b" ")
          v = t[4] if len(t[3]) == 0 else t[3]
          dt = float(v) / 1000.0
      if dt == 0:
        notif("[error : duration=0]")
      if dt > dmax:
        dmax = dt
      if dt < dmin:
        dmin = dt

    sdt += dt
    sdt2 += dt * dt
    mean, stdev, halfA = simple_stats(i + 1, sdt, sdt2)
    t = localtime()
    notif(
      f"{t.tm_hour:02d}:{t.tm_min:02d}:{t.tm_sec:02d} #[{i + 1:02d}] | {dt:7.3f}s ({stdev:3.3f}) | [{mean:8.3f} ± {halfA:3.3f}]s |")

  notif(barre)
  notif("  time   #it |    XP (stdev)    | confid. interval  |")
  notif(barre)
  notif(
    f"=> Conclusion on {cfg.nbr_tests_for_stats} iteration(s) : {dmin:8.3f} <-- [{mean:8.3f} ± {halfA:3.3f}] --> {dmax:8.3f}")

  safe_cd(current, "..")
  safe_cd(current, "..")

  sys.exit(0)