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/usr/bin/freefoam-solverSweeps is in freefoam 0.1.0+dfsg-1build1.

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#!/usr/bin/python
#-------------------------------------------------------------------------------
#               ______                _     ____          __  __
#              |  ____|             _| |_  / __ \   /\   |  \/  |
#              | |__ _ __ ___  ___ /     \| |  | | /  \  | \  / |
#              |  __| '__/ _ \/ _ ( (| |) ) |  | |/ /\ \ | |\/| |
#              | |  | | |  __/  __/\_   _/| |__| / ____ \| |  | |
#              |_|  |_|  \___|\___|  |_|   \____/_/    \_\_|  |_|
#
#                   FreeFOAM: The Cross-Platform CFD Toolkit
#
# Copyright (C) 2008-2012 Michael Wild <themiwi@users.sf.net>
#                         Gerber van der Graaf <gerber_graaf@users.sf.net>
#-------------------------------------------------------------------------------
# License
#   This file is part of FreeFOAM.
#
#   FreeFOAM is free software: you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the
#   Free Software Foundation, either version 3 of the License, or (at your
#   option) any later version.
#
#   FreeFOAM is distributed in the hope that it will be useful, but WITHOUT
#   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
#   for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with FreeFOAM.  If not, see <http://www.gnu.org/licenses/>.
#
# Script
#     freefoam-solverSweeps
#
# Description
#     Extracts statistics from a log file
#
#------------------------------------------------------------------------------

"""Usage: freefoam solverSweeps [-h, -help] [<log>]

This utility script extracts solver statistics from a log file and prints them
to the screen. The extracted quantities are:
- execution time of the first iteration
- overall execution time
- the number of iterations
- the first iteration number
- the last iteration number
- the number of solver sweeps for the velocity and pressure fields

Options
-------
-h, -help  Print this help message
<log>      Analyze this log file. If this is -, read log from standard input.
           If not specified, the name of the file (NOT the data) is read from
           standard input.

"""

import os
import os.path
import sys
import re
# want to be future proof
sys.path.insert(0, '/usr/lib/python2.7/site-packages')
from FreeFOAM.compat import *

logFile = None
logName = None
args = sys.argv[1:]
while len(args) > 0:
   a = args[0]
   if a == '-h' or a == '-help':
      print(__doc__)
      sys.exit(0)
   elif a == '-':
      logName = 'stdin'
      logFile = sys.stdin
      break
   elif a[0] == '-':
      sys.stderr.write('Error: unknown option "%s"\n'%a)
      sys.stderr.write(__doc__+'\n')
      sys.exit(1)
   else:
      logName = a
      break

if not logFile:
   if not logName:
      sys.stderr.write('Name of log file [log] : ')
      logName = sys.stdin.readline().strip()
   if os.path.isfile(logName):
      logFile = open(logName, 'rt')
   else:
      sys.stderr.write('Error: No such file "%s"\n'%logName)
      sys.exit(1)

# Main
#~~~~~~

program = None
runTime = []
time = []
pIter = 0
UIter = 0

progRegex = re.compile(r'^Exec\s+: (?P<program>\S+)')
execTimeRegex = re.compile(r'^ExecutionTime\s*=.*')
timeRegex = re.compile(r'^Time\s*=.*')
pRegex = re.compile(r'.*Solving for p,.*\s+(?P<niter>\d+)$')
URegex = re.compile(r'.*Solving for U.,.*\s+(?P<niter>\d+)$')
for l in logFile:
   l = l.strip()
   if not program:
      m = progRegex.match(l)
      if m:
         program = m.group('program')
         continue
   if execTimeRegex.match(l):
      runTime.append(l)
      continue
   if timeRegex.match(l):
      time.append(l)
      continue
   m = pRegex.match(l)
   if m:
      pIter += int(m.group('niter'))
      continue
   m = URegex.match(l)
   if m:
      UIter += int(m.group('niter'))
      continue

print('\nProgram: %s'%program)

print('\nRuntime:')
print('  1st iter  : %s'%runTime[0])
print('  overall   : %s'%runTime[-1])

print('\nSimulation:')
print('  steps: %d'%len(time))
print('  from : %s'%time[0])
print('  to   : %s'%time[-1])

print('\nSolver sweeps:')
print('  p           : %d'%pIter)
print('  U(U0,U1,U2) : %d'%UIter)

# ------------------- vim: set sw=3 sts=3 ft=python et: ------------ end-of-file