On 10/2/24 08:17, Praveen C wrote:
The documentation says
https://dealii.org/current/doxygen/deal.II/classPETScWrappers_1_1TimeStepper.html
VectorType must provide a petsc_vector() function but the LA distributed
vector does not seem to have this, right ?
In C++20 we actually check which
Hello Marc
The documentation says
https://dealii.org/current/doxygen/deal.II/classPETScWrappers_1_1TimeStepper.html
VectorType must provide a petsc_vector() function but the LA distributed vector
does not seem to have this, right ?
best
praveen
> On 2 Oct 2024, at 7:26 PM, Marc Fehling wrote
Hi Praveen,
PETScWrappers::TimeStepper has only been explicitly instantiated for the
PETScWrappers Vectors:
https://github.com/dealii/dealii/blob/25495718f4bb6aa45a8f6c8cc4f2aedbe8d62231/source/lac/petsc_ts.cc#L82-L89
Will deal.II compile if you add the corresponding instantiations for the
Line
I guess what you need is something like VectorTools::point_values()
(https://www.dealii.org/developer/doxygen/deal.II/namespaceVectorTools.html#a4638b2ccdbf190a9b1f6bbbee98a2978)
and
VectorTools::point_gradients(https://www.dealii.org/developer/doxygen/deal.II/namespaceVectorTools.html#aa96d29e
May be this does what you are asking for
https://dealii.org/current/doxygen/deal.II/classFunctions_1_1FEFieldFunction.html
best
praveen
> On 2 Oct 2024, at 6:29 PM, 'Xuefeng Li' via deal.II User Group
> wrote:
>
> I apologize for hitting the Send button before completing my questions.
>
> I
I apologize for hitting the Send button before completing my questions.
I realize that the evaluation of a FEM function is an expensive process due
to the fact that we'll need to determine the cell in the mesh where a point
belongs before interpolation takes place. That's why I'm just asking for
t
