[Trilinos-Users] AztecOO: result is zero?

[Sensei]

Dear all,

I have successfully used the FECsrMatrix class with a graph, and I am happy about it. Now I've moved to another library from the tutoral: AztecOO.

However, I am missing something: I always have a zero vector as result of a linear problem. Fearing a mistake of mine, I've compiled Didasko/AztecOO ex2.cpp, since its matrix was exactly what I've been programming for, but alas, I get the same zero vector.

What am I missing? I'm pasting the debugger's output.

Thanks!



GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Sat Feb 12 02:52:12 UTC 2011)
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This GDB was configured as "x86_64-apple-darwin".tty /dev/ttys001
sharedlibrary apply-load-rules all

[Switching to process 1489 thread 0x0]

Epetra::CrsMatrix
Number of Global Rows        = 5
Number of Global Cols        = 5
Number of Global Diagonals   = 5
Number of Global Nonzeros    = 13
Global Maximum Num Entries   = 3

Number of My Rows        = 3
Number of My Cols        = 4
Number of My Diagonals   = 3
Number of My Nonzeros    = 8
My Maximum Num Entries   = 3

Epetra::CrsMatrix
Number of My Rows        = 2
Number of My Cols        = 3
Number of My Diagonals   = 2
Number of My Nonzeros    = 5
My Maximum Num Entries   = 3

   Processor    Row Index    Col Index           Value     
       0             0             0                       2    
       0             0             1                      -1    
       0             1             0                      -1    
       0             1             1                       2    
       0             1             2                      -1    
       0             2             1                      -1    
       0             2             2                       2    
       0             2             3                      -1    
       1             3             3                       2    
       1             3             4                      -1    
       1             3             2                      -1    
       1             4             3                      -1    
       1             4             4                       2    

Epetra::Vector
Epetra::Vector
      MyPID           GID               Value  
         0             0               -0.562082
         0             1               -0.905911
         0             2               0.0655345
         1             3              -0.0359305
         1             4               0.0655658



		*******************************************************
		***** Problem: Epetra::CrsMatrix
		***** Preconditioned GMRESR solution
		***** AztecOO Operator
		***** No scaling
		*******************************************************

                iter:    0           residual = 1.000000e+00
                iter:    1           residual = 2.046639e-16


		Solution time: 0.001977 (sec.)
		total iterations: 1

Epetra::Vector
Epetra::Vector
      MyPID           GID               Value  
         0             0                       0
         0             1                       0
         0             2                       0
         1             3                       0
         1             4                       0


Program ended with exit code: 0
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