On 12/18/25 21:11, Jihuan Tian wrote:
Thanks for your reply and recognition! The deal.II project sets an excellent
example in terms of code organization and documentation. It has been a major
inspiration for my project.
Sure, it's my pleasure that you visit HierBEM from deal.II applications page.
I absolutely agree with your suggestions about contributing HierBEM's
underlying data structures and functions to deal.II. With the following
things, I think deal.II users can quickly build their own BEM or BEM/FEM
coupled applications without bothering with low level technical details:
* Cluster tree
* Block cluster tree
* H-matrix
* BEM function space
* BEM bilinear form
* Operator preconditioners based on dual mesh
* Preconditioners based on H-matrix Cholesky or LU factorizations
* Complex valued iterative solvers
* All related tool functions which are used by the above facilities.
In the class LAPACKFullMatrixExt, I've encapsulated and added more LAPACK
functions, mainly used for SVD, matrix/vector multiplication when the matrix
is symmetric or Hermite symmetric, etc. I hope these can be directly merged
into deal.II's class LAPACKFullMatrix, so that there will be only one class
dealing with LAPACK matrices.
For how to organize these code into deal.II, I would like to hear your opinions.
Jihuan:
I think the general recommendation is always "make it into small,
self-contained patches". Start with the simple ones -- say the LAPACK
extensions or the complex-valued solvers. I think these should be relatively
easy to package into pull requests, and it should be straight-forward to
create tests for as well. I think you'll learn from these smaller pull
requests what we tend to look for, and it'll make it easier later on for you
to foresee what we will likely ask for in the larger pieces of functionality.
In any case, like I said, I think it would be fantastic to have even small
parts of this in the library. You've written a lot of interesting
functionality, and it would be fantastic to see that available to the bigger
community!
Best
Wolfgang
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