Hello Bruno,
I have the solution serialized with the old version. Do you think this is
the issue? I will do everything with the new version today and update you
if it works.
Best,
Najwa
On Monday, November 6, 2023 at 5:33:11 PM UTC+3 bruno.t...@gmail.com wrote:
> Najwa,
>
> Are you
UTC+3 Najwa Alshehri wrote:
> Hello Bruno,
>
> I have the solution serialized with the old version. Do you think this is
> the issue? I will do everything with the new version today and update you
> if it works.
>
> Best,
> Najwa
>
> On Monday, November 6, 20
Dear developers and group members,
I was using an old version of Dealii where I was serializing some solutions
and deserializing them where needed. In the code where I deserialize the
solution I used to use the following headers:
#include
#include
#include
#include
#include
and I used
Dear group members,
I have one question,
I am trying to calculate the L2 norm of the error of a solution. In
particular, I have a *vector of the solution* u_omega and a *FeSystem* with
two fes.
I am interested in computing the L2 norm of the error related to the first
fe using
> for all vector components uniformly.
>
> Best,
> Daniel
>
> On Wed, Jul 19, 2023 at 8:01 AM Najwa Alshehri
> wrote:
>
>> Dear group members,
>>
>> I have one question,
>>
>> I am trying to calculate the L2 norm of the error of a sol
s that the mask is not really picking up the
first component of the solution u_omega2. Do you have any suggestions to
fix this issue?
Appreciate your help,
Najwa
On Thursday, July 20, 2023 at 11:48:04 AM UTC+3 Najwa Alshehri wrote:
> Thank you Daniel for the clear quick answer. I will follow it.
Wolfgang Bangerth wrote:
> On 7/26/23 12:17, Najwa Alshehri wrote:
> >
> > Regarding the function "VectorFucntionFromScalarFunctionObject," I have
> > observed that it works for computing the L2 norm of the error. However,
> when I
> > attempted to compute
answers,
>> Najwa
>>
>> On Wednesday, July 26, 2023 at 11:41:15 PM UTC+3 Wolfgang Bangerth wrote:
>>
>>> On 7/26/23 12:17, Najwa Alshehri wrote:
>>> >
>>> > Regarding the function "VectorFucntionFromScalarFunctionObject," I
&
r. I will try to write a patch to the deal.II
>>>> sources that implement the missing function. This might require some time.
>>>> I will come back here if needed.
>>>>
>>>>
>>>> Thank you all for your quick answers,
>>>>
"FeFeildFunction."
Could you kindly advise me on the simplest way to accomplish this?
On a side note, although "VectorFucntionFromScalarFunctionObject" works
with the L2 norm of the error, it is quite computationally intensive.
Best regards,
Najwa
On Sunday, July 23, 2023 at 4
my_fun([&](const auto ){ return
> fe_field_func.value(p);}, 0, 2);
>
> Luca
>
> Il giorno 21 lug 2023, alle ore 22:05, Najwa Alshehri
> ha scritto:
>
> Dear Daniel, your answer makes sense, Finally it worked.
>
>
> Dear Luca, thank you for your answer. In
ion to allocate two components:
>
> ExactSolution2::ExactSolution2( … )
> : Functions::Function(2)
>
> Best,
> Luca.
>
>
> > On 20 Jul 2023, at 12:15, Najwa Alshehri wrote:
> >
> > Hello again,
> >
> > I have a follow-up question. Does th
Dear developers and users,
I have two meshes one is immersed in the other. I wanted to find the
intersection between the two meshes, so I used the following function.
NonMatching::compute_intersection(omega_grid_tools_cache,
Dear all,
Thank you for your always support and help.
I am encountering an issue while solving an eigenvalue problem related to
the computation of the discrete inf-sup constant for a saddle point
problem. Specifically, I am solving the following system:
Bt A^-1 B eigenvector = eigenvalue
; A x = \lambda M x
>
>
> Best,
> Matthias
>
>
> On Thu, May 30, 2024, at 10:55 CDT, Najwa Alshehri
> wrote:
>
> > Dear all,
> >
> >
> > Thank you for your always support and help.
> >
> >
> > I am encountering an issue while solvi
different
results, I would greatly appreciate your input on this matter.
Best,
Najwa
On Friday, May 31, 2024 at 11:41:27 AM UTC+3 Najwa Alshehri wrote:
> Dear Wolfgang:
>
> Thank you for your answer. I have checked the matrices and I printed the
> case for a 2 by 2 mesh from
Wolfgang Bangerth wrote:
> On 6/1/24 14:49, Najwa Alshehri wrote:
> >
> > I decided to solve the exact problem directly, namely AA x = \lambda M
> x. To
> > achieve this, I computed the inverse of the matrix AA= Bt * A^inv * B
> using a
> > Conjugate Gradient (C
you did for the mass matrix, but replacing the inverse
> operator done with umfpack with one done with CG.
>
> Luca
>
> Il giorno 2 giu 2024, alle ore 09:42, Najwa Alshehri
> ha scritto:
>
> Wolfgang and all,
>
> I have a positive definite matrix M, and its inverse
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