#!/usr/bin/env?python

import?os?sys
import?Queue
import?getpass
import?re
from?sys?import?exit
from?threading?import?Thread
from?string?import?find?split?join?atof
from?time?import?sleep
is_win32?=?（sys.platform?==?‘win32‘）

#?svmtrain?and?gnuplot?executable
if?not?is_win32:
????svmtrain_exe?=?“../svm-train“
gnuplot_exe?=?“/usr/bin/gnuplot“
else:
??#?example?for?windows
????svmtrain_exe?=?r“c:\libsvm29\windows\svm-train.exe“
????gnuplot_exe?=?r“c:\gnuplot\bin\pgnuplot.exe“

#?global?parameters?and?their?default?values

fold?=?5
c_begin?c_end?c_step?=?-1??6?1
g_begin?g_end?g_step?=??0?-8?-1
p_begin?p_end?p_step?=??-8?-1?1
global?dataset_pathname?dataset_title?pass_through_string
global?out_filename?png_filename

#?experimental

ssh_workers?=?[]
#?ssh_workers?=?[‘linux1‘‘linux1‘‘linux2‘‘linux2‘‘linux3‘?‘linux4‘?‘linux6‘‘linux7‘‘linux8‘‘linux8‘‘linux9‘‘linux10‘‘linux11‘‘linux12‘]
nr_local_worker?=?1

#?process?command?line?options?set?global?parameters
def?process_options（argv=sys.argv）:

????global?fold
????global?c_begin?c_end?c_step
????global?g_begin?g_end?g_step
????global?p_begin?p_end?p_step
????global?dataset_pathname?dataset_title?pass_through_string
????global?svmtrain_exe?gnuplot_exe?gnuplot?out_filename?png_filename
????
????usage?=?“““\
Usage:?grid.py?[-log2c?beginendstep]?[-log2g?beginendstep]?[-log2p?beginendstep]?[-v?fold]?
[-svmtrain?pathname]?[-gnuplot?pathname]?[-out?pathname]?[-png?pathname]
[additional?parameters?for?svm-train]?dataset“““

????if?len（argv）?????????print?usage
????????sys.exit（1）

????dataset_pathname?=?argv[-1]
????dataset_title?=?os.path.split（dataset_pathname）[1]
????out_filename?=?‘%s.out‘?%?dataset_title
????png_filename?=?‘%s.png‘?%?dataset_title
????pass_through_options?=?[]

????i?=?1
????while?i?????????if?argv[i]?==?“-log2c“:
????????????i?=?i?+?1
????????????（c_beginc_endc_step）?=?map（atofsplit（argv[i]““））
????????elif?argv[i]?==?“-log2g“:
????????????i?=?i?+?1
????????????（g_beging_endg_step）?=?map（atofsplit（argv[i]““））
????????elif?argv[i]?==?“-log2p“:
????????????i?=?i?+?1
????????????（p_beginp_endp_step）?=?map（atofsplit（argv[i]““））
????????elif?argv[i]?==?“-v“:
????????????i?=?i?+?1
????????????fold?=?argv[i]
????????elif?argv[i]?in?（‘-c‘‘-g‘）:
????????????print?“Option?-c?and?-g?are?renamed.“
????????????print?usage
????????????sys.exit（1）
????????elif?argv[i]?==?‘-svmtrain‘:
????????????i?=?i?+?1
????????????svmtrain_exe?=?argv[i]
????????elif?argv[i]?==?‘-gnuplot‘:
????????????i?=?i?+?1
????????????gnuplot_exe?=?argv[i]
????????elif?argv[i]?==?‘-out‘:
????????????i?=?i?+?1
????????????out_filename?=?argv[i]
????????elif?argv[i]?==?‘-png‘:
????????????i?=?i?+?1
????????????png_filename?=?argv[i]
????????else:
????????????pass_through_options.append（argv[i]）
????????i?=?i?+?1

????pass_through_string?=?join（pass_through_options“?“）
????assert?os.path.exists（gnuplot_exe）“gnuplot?executable?not?found“
????ass