Source Code for Module Biskit.PVM.ExampleSlave

 1  ## 
 2  ## Biskit, a toolkit for the manipulation of macromolecular structures 
 3  ## Copyright (C) 2004-2005 Raik Gruenberg & Johan Leckner 
 4  ## 
 5  ## This program is free software; you can redistribute it and/or 
 6  ## modify it under the terms of the GNU General Public License as 
 7  ## published by the Free Software Foundation; either version 2 of the 
 8  ## License, or any later version. 
 9  ## 
10  ## This program is distributed in the hope that it will be useful, 
11  ## but WITHOUT ANY WARRANTY; without even the implied warranty of 
12  ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 
13  ## General Public License for more details. 
14  ## 
15  ## You find a copy of the GNU General Public License in the file 
16  ## license.txt along with this program; if not, write to the Free 
17  ## Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 
18  ## 
19  ## 
20  ## $Revision: 2.3 $ 
21  ## last $Date: 2006/12/22 14:27:30 $ 
22  ## last $Author: graik $ 
23   
24  """ 
25  An example of a Slave/Master setup. 
26  """ 
27   
28  from Biskit.PVM import JobSlave 
29  import Biskit.tools as T 
30  import subprocess 
31   
32  import time 
33   
34 -class Slave(JobSlave): 
35   
36 -    def initialize(self, params): 
37          """ 
38          Parameters handed over by master. 
39          """ 
40          self.params = params 
41          ## or perhaps easier: 
42          ## self.__dict__.update( params ) 
43   
44   
45 -    def go(self, dict): 
46          """ 
47          Perform slave task. 
48          """ 
49          d = {} 
50   
51          T.flushPrint( self.params['progress_str'] ) 
52          for id, val in dict.items(): 
53   
54              d[id] = val+1 
55   
56              for i in range(1, 1000): 
57                  f = 1.0 * i / 1200232112312.11 
58   
59              T.flushPrint( str(id) + ' ' ) 
60              time.sleep(0.5) 
61   
62          print "Done." 
63          return d 
64   
65   
66  if __name__ == '__main__': 
67   
68      import os, sys 
69   
70      if len(sys.argv) == 2: 
71   
72          niceness = int(sys.argv[1]) 
73          os.nice(niceness) 
74   
75      slave = Slave() 
76      slave.start() 
77