The MOSEK Python optimizer API manual Version 7.0 (Revision 141)

7.1. THE PROGRESS CALL-BACK 87
71 print ("Dual simplex optimizer finished.")
72 elif caller == callbackcode.begin bi:
73 print ("Basis identification started.")
74 elif caller == callbackcode.end bi:
75 print ("Basis identification finished.")
76 else:
77 pass
78
79 if opttime >= maxtime:
80 # mosek is spending too much time. Terminate it.
81 return 1
82
83 return 0
84 return userCallback
85
86 def msgPrinter(msg):
87 sys.stdout.write(msg)
88 sys.stdout.flush()
89
90 def main(args):
91
92 if len(args) < 3:
93 print ("Too few input arguments. Syntax:")
94 print ("\tcallback.py psim inputfile")
95 print ("\tcallback.py dsim inputfile")
96 print ("\tcallback.py intpnt inputfile")
97 return
98
99 with mosek.Env() as env:
100 with mosek.Task(env) as task:
101 filename = args[2]
102 task.readdata(filename)
103
104 task.set Stream(streamtype.log, msgPrinter)
105
106 if args[1] == ’psim’:
107 task.putintparam(iparam.optimizer,optimizertype.primal simplex)
108 elif args[1] == "dsim":
109 task.putintparam(iparam.optimizer,optimizertype.dual simplex)
110 elif args[1] == "intpnt":
111 task.putintparam(iparam.optimizer,optimizertype.intpnt)
112
113 # Turn all MOSEK logging off (note that errors and other messages
114 # are still sent through the log stream)
115 task.putintparam(iparam.log, 0)
116
117 usercallback = makeUserCallback(maxtime = 3600)
118 task.set Progress(usercallback)
119
120 task.optimize()
121
122 task.solutionsummary(streamtype.msg)
123
124 if name == ’ main ’:
125 main(sys.argv)