/[escript]/trunk/finley/test/python/SimpleSolve.py
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Diff of /trunk/finley/test/python/SimpleSolve.py

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revision 148 by jgs, Tue Aug 23 01:24:31 2005 UTC revision 153 by jgs, Tue Oct 25 01:51:20 2005 UTC
# Line 3  Line 3 
3  import sys  import sys
4  import os  import os
5  import unittest  import unittest
6    import time
7    
8  from escript.escript import *  from esys.escript import *
9  from escript.linearPDEs import *  from esys.escript.linearPDEs import *
10  from finley import finley  from esys import finley
11    
12    starttime = time.clock()
13    
14  print "\nSimpleSolve.py"  print "\nSimpleSolve.py"
15  print "--------------"  print "--------------"
16    
17  alpha=0.07  alpha=0.7
18  error_tol=1.e-5  error_tol=1.e-5
19    
20  # generate mesh  # generate mesh
# Line 20  error_tol=1.e-5 Line 23  error_tol=1.e-5
23  # mydomain=finley.Rectangle(140,140)  # mydomain=finley.Rectangle(140,140)
24    
25  # print "\nGenerate mesh: finley.Rectangle(4,4,1)=>"  # print "\nGenerate mesh: finley.Rectangle(4,4,1)=>"
26  mydomain=finley.Rectangle(190,190,1)  mydomain=finley.Rectangle(150,10,1)
27    # mydomain=finley.Rectangle(190,190,1)
28    
29  print "\nGenerate mesh: finley.Rectangle(151,151,1)=>"  print "\nGenerate mesh: finley.Rectangle(151,151,1)=>"
30  # mydomain=finley.Rectangle(151,151,1)  # mydomain=finley.Rectangle(151,151,1)
# Line 55  print "----------------------------" Line 59  print "----------------------------"
59  print "mypde=LinearPDE( A=[[1.,0.8],[0.4,1.]], D=alpha, Y=alpha, domain=mydomain)"  print "mypde=LinearPDE( A=[[1.,0.8],[0.4,1.]], D=alpha, Y=alpha, domain=mydomain)"
60  mypde=LinearPDE(mydomain)  mypde=LinearPDE(mydomain)
61  mypde.setDebugOn()  mypde.setDebugOn()
62  mypde.setValue(A=[[1.,0.8],[0.4,1.]],D=alpha,Y=alpha)  mypde.setValue(A=[[1.,0.1],[0.04,1.]],D=alpha,Y=alpha)
63    
64  print "mypde.checkSymmetry()"  print "mypde.checkSymmetry()"
65  print mypde.checkSymmetry()  print mypde.checkSymmetry()
66    
67  print "\nIterative Solver (1)=>"  print "\nIterative Solver (1)=>"
68  # u_i=mypde.getSolution(preconditioner=ILU0,iter_max=3000)  mypde.setSolverMethod(mypde.BICGSTAB)
69  u_i=mypde.getSolution(iter_max=3000)  u_i=mypde.getSolution(verbose=True,iter_max=3000,preconditioner=mypde.ILU0)
70    
71  print "\nDirect Solver (1)=>"  print "\nDirect Solver (1)=>"
72  mypde.setSolverMethod(mypde.DIRECT)  mypde.setSolverMethod(mypde.DIRECT)
73  u_d=mypde.getSolution()  u_d=mypde.getSolution(verbose=True)
74    
75  print "\n***************************************************************"  print "\n***************************************************************"
76  error=u_ex-u_d  error=u_ex-u_d
# Line 114  mypde.setTolerance(1.e-13) Line 118  mypde.setTolerance(1.e-13)
118    
119  # mypde.setSymmetryOn() : is not woking yet!  # mypde.setSymmetryOn() : is not woking yet!
120  mypde.setSolverMethod(mypde.DIRECT)  mypde.setSolverMethod(mypde.DIRECT)
121  u_d=mypde.getSolution()  u_d=mypde.getSolution(verbose=True)
122    
123  print "\nIterative Solver (2)=>"  print "\nIterative Solver (2)=>"
124    
125  mypde.setSymmetryOn()  mypde.setSymmetryOn()
126  mypde.setSolverMethod(mypde.DEFAULT_METHOD)  mypde.setSolverMethod(mypde.ITERATIVE)
127  u_i=mypde.getSolution(iter_max=3000)  u_i=mypde.getSolution(verbose=True,iter_max=3000)
128    
129  print "\n******************************************************************"  print "\n******************************************************************"
130  error=u_ex-u_d  error=u_ex-u_d
# Line 141  print "\n-----" Line 145  print "\n-----"
145  print "Done."  print "Done."
146  print "-----"  print "-----"
147    
148    stoptime = time.clock()
149    elapsed = stoptime - starttime
150    print "\nElapsed time: ", elapsed, "\n"
151    
152  sys.exit(0)  sys.exit(0)

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