Johan Hake wrote:
> On Tuesday 07 July 2009 19:18:22 Garth N. Wells wrote:
>> Kristian Oelgaard wrote:
>>> Hi,
>>>
>>> I get:
>>>
>>> Solving linear variational problem
>>> Matrix of size 1089 x 1089 has 7361 nonzero entries.
>>> Applying boundary conditions to linear system.
>>> *** Warning: Ignoring unknown parameter "absolute_tolerance" in
>>> parameter set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "divergence_limit" in parameter
>>> set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "gmres_restart" in parameter
>>> set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "maximum_iterations" in
>>> parameter set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "monitor_convergence" in
>>> parameter set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "relative_tolerance" in
>>> parameter set "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "report" in parameter set
>>> "krylov_solver" when updating parameter set "parameters".
>>> *** Warning: Ignoring unknown parameter "shift_nonzero" in parameter
>>> set "krylov_solver" when updating parameter set "parameters".
>>> terminate called after throwing an instance of 'std::runtime_error'
>>> what(): *** Error: Unable to access parameter "report" in parameter
>>> set "parameters", parameter not defined.
>>> [mech028:15991] *** Process received signal ***
>>> [mech028:15991] Signal: Aborted (6)
>>> [mech028:15991] Signal code: (-6)
>>> [mech028:15991] [ 0] [0xb805d410]
>>> [mech028:15991] [ 1] /lib/tls/i686/cmov/libc.so.6(abort+0x188)
>>> [0xb6154098] [mech028:15991] [ 2]
>>> /usr/lib/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x15
>>> 8) [0xb636e8f8]
>>> [mech028:15991] [ 3] /usr/lib/libstdc++.so.6 [0xb636c7d5]
>>> [mech028:15991] [ 4] /usr/lib/libstdc++.so.6 [0xb636c812]
>>> [mech028:15991] [ 5] /usr/lib/libstdc++.so.6 [0xb636c94a]
>>> [mech028:15991] [ 6]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZNK6dolfin6Logger5
>>> errorESs+0x93) [0xb7f166a3]
>>> [mech028:15991] [ 7]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin5errorESs
>>> z+0x9f) [0xb7f1f62f]
>>> [mech028:15991] [ 8]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin10Paramet
>>> ersclESs+0xb3) [0xb7fc7833]
>>> [mech028:15991] [ 9]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin17PETScKr
>>> ylovSolver5solveERKNS_11PETScMatrixERNS_11PETScVectorERKS4_+0xb2)
>>> [0xb7ee9ce2]
>>> [mech028:15991] [10]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin17PETScKr
>>> ylovSolver5solveERKNS_13GenericMatrixERNS_13GenericVectorERKS4_+0xfb)
>>> [0xb7eea3db]
>>> [mech028:15991] [11]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin12KrylovS
>>> olver5solveERKNS_13GenericMatrixERNS_13GenericVectorERKS4_+0x18e)
>>> [0xb7e69c1e]
>>> [mech028:15991] [12]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin18Variati
>>> onalProblem12solve_linearERNS_8FunctionE+0xaaf) [0xb7e674af]
>>> [mech028:15991] [13]
>>> /home/oelgaard/fenics/dolfin/local/lib/libdolfin.so.0(_ZN6dolfin18Variati
>>> onalProblem5solveERNS_8FunctionE+0x2a) [0xb7e6814a]
>>> [mech028:15991] [14] ./demo(main+0x497) [0x805db07]
>>> [mech028:15991] [15] /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe5)
>>> [0xb613d775]
>>> [mech028:15991] [16] ./demo [0x805d541]
>>> [mech028:15991] *** End of error message ***
>>>
>>> if I do:
>>>
>>> problem.parameters("linear_solver") = "iterative";
>>>
>>> in the Poisson demo.
>>>
>>> Is this a bug, or am I using the new parameter system incorrectly?
>> Take a look at the change Johan made recently to LUSolver. Same thing
>> probably needs to be done for KrylovSolver.
>
> This one beats me... It is another problem here.
>
I've added a function to set parameters for PETScKrylovSolver and
everything works now.
> KrylovSolver::parameters get initialized. However, it looks like
>
> solver.parameters.update(parameters["krylov_solver"]);
>
> does not update the krylov solvers parameters, but rather an empty
> parameters,
> and therefore the warnings.
>
What exactly does (or should)
solver.parameters.update(parameters["krylov_solver"]);
do?
Garth
> Also note that in python we use square brackets for all levels in the
> parameter hierarchy, so it should be:
>
> problem.parameters["linear_solver"] = "iterative"
>
> But
>
> problem.parameters("linear_solver")
>
> should report an error message.
>
> Johan
>
>> Garth
>>
>>> Kristian
>>>
>>> _______________________________________________
>>> DOLFIN-dev mailing list
>>> DOLFIN-dev@fenics.org
>>> http://www.fenics.org/mailman/listinfo/dolfin-dev
>> _______________________________________________
>> DOLFIN-dev mailing list
>> DOLFIN-dev@fenics.org
>> http://www.fenics.org/mailman/listinfo/dolfin-dev
>
>
_______________________________________________
DOLFIN-dev mailing list
DOLFIN-dev@fenics.org
http://www.fenics.org/mailman/listinfo/dolfin-dev
