1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#!/usr/bin/env python
#-------------------------------------------------------------------------------
# This file is part of Code_Saturne, a general-purpose CFD tool.
#
# Copyright (C) 1998-2019 EDF S.A.
#
# This program 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 2 of the License, or (at your option) any later
# version.
#
# This program 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
# this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
# Street, Fifth Floor, Boston, MA 02110-1301, USA.
#-------------------------------------------------------------------------------
"""
This module describes the script used to run a study/case for Code_Saturne.
This module defines the following functions:
- process_cmd_line
- main
"""
#===============================================================================
# Import required Python modules
#===============================================================================
import os, sys
import types, string, re, fnmatch
import socket
from optparse import OptionParser
#===============================================================================
# Classes
#===============================================================================
class controller:
"""
Controller class for running computation.
"""
#---------------------------------------------------------------------------
def __init__(self,
path = None, # run directory
package = None): # main package
# Package specific information
self.package = package
# run directory
self.path = path
# Initialize connection
import random
key = str(random.randrange(0, 2**31))
hostname = socket.getfqdn()
self.s = socket.socket()
self.s.bind(('', 0)) # OS will pick an available port.
port = self.s.getsockname()[1]
f_path = 'control_file'
if self.path != None:
f_path = os.path.append(self.path, f_path)
c = open(f_path, 'w')
c.write('connect ' + hostname+':'+str(port) + ' ' + key + '\n')
c.close()
self.s.listen(0)
(self.conn, self.address) = self.s.accept()
cmp_key = self.conn.recv(len(key)).decode("utf-8")
if cmp_key != key:
print('incorrect key returned: expected ' + key + ', got ' + cmp_key)
magic_string = 'CFD_control_comm_socket'
cmp_string = self.conn.recv(len(magic_string)).decode("utf-8")
if cmp_string != magic_string:
print('incorrect magic string returned: expected ' + magic_string)
print('got ' + cmp_string)
self.conn.send(magic_string.encode("utf-8"))
#---------------------------------------------------------------------------
def send_string(self, str):
self.conn.send((str + "\n").encode("utf-8"))
# print("sent ", str)
#---------------------------------------------------------------------------
def recv_string(self, l=32768):
str = self.conn.recv(l).decode("utf-8")
lr = len(str)
while lr >= l:
str0 = self.conn.recv(l).decode("utf-8")
l = len(str0)
str += str0
return str
#---------------------------------------------------------------------------
def advance(self, n = 1):
self.send_string("advance " + str(n))
retcode = self.recv_string()
# print(retcode)
#---------------------------------------------------------------------------
def disconnect(self):
self.send_string("disconnect ")
self.conn.shutdown(socket.SHUT_RDWR)
self.conn.close()
self.s.shutdown(socket.SHUT_RDWR)
self.s.close()
#---------------------------------------------------------------------------
def __del__(self):
self.disconnect()
#-------------------------------------------------------------------------------
# Process the command line arguments
#-------------------------------------------------------------------------------
def process_cmd_line(argv, pkg):
"""
Process the passed command line arguments.
"""
if sys.argv[0][-3:] == '.py':
usage = "usage: %prog [options]"
else:
usage = "usage: %prog run [options]"
parser = OptionParser(usage=usage)
parser.add_option("--exec-dir", dest="exec_dir", type="string",
metavar="<case>",
help="server's exection directory")
parser.set_defaults(exec_dir=None)
# Note: we could use args to pass a calculation status file as an argument,
# which would allow pursuing the later calculation stages.
(options, args) = parser.parse_args(argv)
return (options.exec_dir)
#===============================================================================
# Main function
#===============================================================================
def main(argv, pkg):
"""
Main function.
"""
(exec_dir) = process_cmd_line(argv, pkg)
c = controller(exec_dir, pkg)
c.advance(3)
c.advance(3)
return 0
#-------------------------------------------------------------------------------
if __name__ == '__main__':
# Run package
try:
from cs_package import package
pkg = package()
except Exception:
pkg = None
retval = main(sys.argv[1:], pkg)
sys.exit(retval)
#-------------------------------------------------------------------------------
# End
#-------------------------------------------------------------------------------
|
