Doug,
let me add another thought I had: While the vertex locations of the mesh are
hard-coded as doubles (and you won't be able to change that), there is a class
MappingEulerian that allows you to provide a displacement field. This field is
parameterized by a vector of some sort, and it is
> > I see that in a previous thread
> > (
> https://groups.google.com/forum/#!searchin/dealii/tpetra%7Csort:date/dealii/I8aLPu5anrM/gBzaaqivDAAJ),
>
>
> > you plan on switching over to Tpetra, which will also be useful for us
> since
> > we might instantiate those vectors with AD types. Do
> The derivatives with respect to the
> mesh points will be needed for optimization purposes.
I’m not familiar with the algorithms used in shape optimisation, but one
*possible* work-around if you need derivatives wrt. the mesh points on the
finite element cell level would be to do the
On 2/8/19 1:55 PM, Doug wrote:
>
> We will very likely implement this work at some point in our development in a
> few months. We have quite a bit of other basics to implement first since we
> have just started reading through the documentation. We plan on using the
> deal.ii library as the
Thank you both for the amazingly quick reply.
We will very likely implement this work at some point in our development in
a few months. We have quite a bit of other basics to implement first since
we have just started reading through the documentation. We plan on using
the deal.ii library as
Doug,
in addition to what J-P already wrote:
> We had chosen to use deal.ii since most of it looked templated in terms of
> accepting the float type. However, I noticed that the FEValuesBase returns a
> 'double', instead of a generic 'value_type' for the Jacobian term.
That depends on the
Dear Doug,
> Looking at the current implementation in fe_values, mapping_q_generic, and
> local integrators, I see that it looks relatively easy to template the value
> type since it is already partially templated.
>
> Is there a reason why those functions were not templates?
No, its likely
Hello,
We had chosen to use deal.ii since most of it looked templated in terms of
accepting the float type. However, I noticed that the FEValuesBase returns
a 'double', instead of a generic 'value_type' for the Jacobian term.
Our goal would be to differentiate through the entire residual (and
