Hello,
I have a cube with periodicity in all 3 directions. I want to add
inhomogeneity in addition to Periodic BC on one face. Below is what I have
done -
{
IndexSet selected_dofs_z;
std::set boundary_ids_z = std::set();
boundary_ids_x.insert(4);
On 10/22/21 2:53 AM, richard@gmail.com wrote:
I think I know what it is: the ML guide on p 16 says in footnote 11:
"Note that the hierarchy produced by ReComputePreconditioner() can differ from
that produced by ComputePreconditioner() for non-zero threshold values."
So when the matrix chang
Dear Masoud,
> As you mentioned, we expect this to be slower than the equivalent code in
> step-8; however, it is very slower than the same code that I wrote before in
> Matlab.
A quick question: are you sure that you’re running your problem in release
mode, rather than debug mode? I had a col
Ahmed,
The file and the respective classes were deleted in
https://github.com/dealii/dealii/pull/9761 and deprecated in
https://github.com/dealii/dealii/pull/5352.
If you need to replace BlockMatrixArray, you should have a look at the
documentation in the latter pull request to use BlockLinearOper
HA!
I think I know what it is: the ML guide on p 16 says in footnote 11:
"Note that the hierarchy produced by ReComputePreconditioner() can differ
from that produced by ComputePreconditioner() for non-zero threshold
values."
So when the matrix changes too much, the const double aggregation_thres
I am trying to compile a deal.ii code but it failed because of
missing .
I do not know how to include it in the recent dealii version. I found it
available deal.ii 8.5.0.
Thanks in advance!
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