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Bruno Blais
, …
Timo Heister
6
7/10/20
Q&A
Interest in a step-12-like DG tutorial but for the advection-diffusion equation?
> where the FEInterfaceValues which is now included in ScratchData Yes, I was going to suggest
unread,
basics
dg_methods
suggestion
Q&A
Interest in a step-12-like DG tutorial but for the advection-diffusion equation?
> where the FEInterfaceValues which is now included in ScratchData Yes, I was going to suggest
7/10/20
Michał Wichrowski
, …
Wolfgang Bangerth
4
4/26/20
Q&A
MtrixFree for biharmonic problem: submit_laplacian
On 4/26/20 4:53 PM, Michał Wichrowski wrote: > I've just looked through the possible solution
unread,
development
dg_methods
feature_request
matrix-free
suggestion
Q&A
MtrixFree for biharmonic problem: submit_laplacian
On 4/26/20 4:53 PM, Michał Wichrowski wrote: > I've just looked through the possible solution
4/26/20
Michał Wichrowski
,
Bruno Turcksin
3
3/11/20
Q&A
Matrix-free: Continuous elements and boundary (face) integrals
On Wednesday, March 11, 2020 at 7:36:31 AM UTC-4, Michał Wichrowski wrote: I tried to fix that by
unread,
bug
dg_methods
fe_spaces
matrix-free
Q&A
Matrix-free: Continuous elements and boundary (face) integrals
On Wednesday, March 11, 2020 at 7:36:31 AM UTC-4, Michał Wichrowski wrote: I tried to fix that by
3/11/20
vachan potluri
,
Wolfgang Bangerth
2
11/22/19
Q&A
Strategy for efficiently calculating face flux in time evolution problems
Vachan, > This question is a general one, may not be specific just to deal.II. I > am writing a
unread,
cpp
dg_methods
Q&A
Strategy for efficiently calculating face flux in time evolution problems
Vachan, > This question is a general one, may not be specific just to deal.II. I > am writing a
11/22/19
Sam
,
Wolfgang Bangerth
6
10/18/19
Q&A
FE_DGQ with support points on faces.
On 10/17/19 9:45 PM, Sam wrote: > I don't really need to evaluate the function at any interior
unread,
dg_methods
fe_spaces
Q&A
FE_DGQ with support points on faces.
On 10/17/19 9:45 PM, Sam wrote: > I don't really need to evaluate the function at any interior
10/18/19
Michał Wichrowski
,
Martin Kronbichler
2
10/14/19
Q&A
Matrix-free DG with adaptive refinements
Dear Michal, Thanks for reporting this problem - this is indeed a bug. It seems we did not think
unread,
dg_methods
h-refinement
matrix-free
Q&A
Matrix-free DG with adaptive refinements
Dear Michal, Thanks for reporting this problem - this is indeed a bug. It seems we did not think
10/14/19
vachan potluri
, …
Doug Shi-Dong
4
10/10/19
Q&A
Query regarding DoFTools::dof_indices_with_subdomain_association()
Hello Vachan, Sounds like you're implementing nodal DG, hence why you only need values and
unread,
dg_methods
mpi
Q&A
Query regarding DoFTools::dof_indices_with_subdomain_association()
Hello Vachan, Sounds like you're implementing nodal DG, hence why you only need values and
10/10/19
vachan potluri
2
9/24/19
Q&A
Calculation of local flux matrix in DG: looping over a cell's faces
Found the face ordering here https://www.dealii.org/current/doxygen/deal.II/structGeometryInfo.html
unread,
basics
dg_methods
Q&A
Calculation of local flux matrix in DG: looping over a cell's faces
Found the face ordering here https://www.dealii.org/current/doxygen/deal.II/structGeometryInfo.html
9/24/19
vachan potluri
, …
Praveen C
8
9/19/19
Q&A
DG explicit time integration for linear advection equation with MeshWorker (suggestions)
step-33 does compute interior face integrals twice. One way I handle this is to attach a cell user
unread,
dg_methods
fluid_mechanics
meshworker
Q&A
DG explicit time integration for linear advection equation with MeshWorker (suggestions)
step-33 does compute interior face integrals twice. One way I handle this is to attach a cell user
9/19/19
Konrad Wiśniewski
, …
Konrad
7
9/8/19
Q&A
Poisson equation, implementation of boundary values, mixed finite element, semiconductor devices
Hi Konrad, Thank you very much for your comment! I will try to go into the detail of it in next days.
unread,
boundary_conditions
dg_methods
electro_magnetics
laplace_poisson
Q&A
Poisson equation, implementation of boundary values, mixed finite element, semiconductor devices
Hi Konrad, Thank you very much for your comment! I will try to go into the detail of it in next days.
9/8/19
Michał Wichrowski
,
Daniel Arndt
3
8/14/19
MGTransferBlockMatrixFree< dim, Number > ::clear rrmoves number of blocks
So you want to a separate function that calls the current interface with default constructed
unread,
bug
dg_methods
matrix-free
MGTransferBlockMatrixFree< dim, Number > ::clear rrmoves number of blocks
So you want to a separate function that calls the current interface with default constructed
8/14/19
Michał Wichrowski
,
Martin Kronbichler
4
8/6/19
Q&A
DG Matrix-free: getting face iterator form
Dear Michal, Great. I've opened issue https://github.com/dealii/dealii/issues/8460 for that to
unread,
dg_methods
matrix-free
Q&A
DG Matrix-free: getting face iterator form
Dear Michal, Great. I've opened issue https://github.com/dealii/dealii/issues/8460 for that to
8/6/19
Jaekwang Kim
,
Wolfgang Bangerth
3
3/14/19
Q&A
ILU preconditioner and mesh-scale dependency?
Thanks for sharing insight! On Thursday, March 14, 2019 at 12:18:30 PM UTC-5, Wolfgang Bangerth wrote
unread,
dg_methods
fluid_mechanics
Q&A
ILU preconditioner and mesh-scale dependency?
Thanks for sharing insight! On Thursday, March 14, 2019 at 12:18:30 PM UTC-5, Wolfgang Bangerth wrote
3/14/19
Maxi Miller
2
3/5/19
Q&A
Conversion of the LDG-example from the code gallery for using MeshWorker
As initial debug approach, I used the function local_assemble_system instead of assemble_cell_terms,
unread,
dg_methods
meshworker
Q&A
Conversion of the LDG-example from the code gallery for using MeshWorker
As initial debug approach, I used the function local_assemble_system instead of assemble_cell_terms,
3/5/19
Maxi Miller
,
Wolfgang Bangerth
2
1/25/19
Q&A
Usage of MeshWorker::mesh_loop for DG methods
On 1/25/19 3:44 AM, 'Maxi Miller' via deal.II User Group wrote: > When using mesh_loop for
unread,
dg_methods
meshworker
Q&A
Usage of MeshWorker::mesh_loop for DG methods
On 1/25/19 3:44 AM, 'Maxi Miller' via deal.II User Group wrote: > When using mesh_loop for
1/25/19
kvan...@protonmail.com
2
11/12/18
Q&A
How can I initialize the edge flux matrices properly using MGMatrixLocalBlocksToGlobalBlocks and MGMatrixBlockVector
The answer to my second question seems to be that the best reference in a DG context is G. Kanschat,
unread,
dg_methods
h-refinement
meshworker
multigrid
Q&A
How can I initialize the edge flux matrices properly using MGMatrixLocalBlocksToGlobalBlocks and MGMatrixBlockVector
The answer to my second question seems to be that the best reference in a DG context is G. Kanschat,
11/12/18
Uwe Köcher
2
10/26/18
Q&A
Wrong sparsity pattern for vector-valued dG (IPDG) methods with fluxes over faces with (FE_DGQ) and deal.II v9.0
as proposed, I've opened an issue on github https://github.com/dealii/dealii/issues/7390
unread,
bug
dg_methods
fe_spaces
Q&A
Wrong sparsity pattern for vector-valued dG (IPDG) methods with fluxes over faces with (FE_DGQ) and deal.II v9.0
as proposed, I've opened an issue on github https://github.com/dealii/dealii/issues/7390
10/26/18
曾元圆
, …
Wolfgang Bangerth
8
3/10/18
Q&A
some problems concerning step-14
On 03/06/2018 08:40 AM, 曾元圆 wrote: > > Finally, I am certainly glad to submit patches to deal.
unread,
basics
dg_methods
h-refinement
laplace_poisson
Q&A
some problems concerning step-14
On 03/06/2018 08:40 AM, 曾元圆 wrote: > > Finally, I am certainly glad to submit patches to deal.
3/10/18
sml.i...@gmail.com
,
Wolfgang Bangerth
6
8/24/17
Q&A
FE_DGP/FE_FaceP and hp::DoFHandler
Can anyone help me with that matter? Best, Samuel On Monday, August 7, 2017 at 11:48:39 AM UTC+2, sml
unread,
dg_methods
Q&A
FE_DGP/FE_FaceP and hp::DoFHandler
Can anyone help me with that matter? Best, Samuel On Monday, August 7, 2017 at 11:48:39 AM UTC+2, sml
8/24/17
Fred
,
Wolfgang Bangerth
4
2/20/17
Q&A
Example of using MeshWorker::Assembler::MGMatrixLocalBlocksToGlobalBlocks?
Unfortunately, I wasn't able to figure it out. I have posted an Issue on github. Kent
unread,
development
dg_methods
meshworker
Q&A
Example of using MeshWorker::Assembler::MGMatrixLocalBlocksToGlobalBlocks?
Unfortunately, I wasn't able to figure it out. I have posted an Issue on github. Kent
2/20/17
Justin Kauffman
,
Wolfgang Bangerth
8
12/16/16
Q&A
build_patches(degree) for higher order dg elements in parallel
Justin, > I am using deal.ii 8.5.0-pre so the patch is in my version. I forgot to change > my
unread,
dg_methods
mpi
petsc
Q&A
build_patches(degree) for higher order dg elements in parallel
Justin, > I am using deal.ii 8.5.0-pre so the patch is in my version. I forgot to change > my
12/16/16
sml.i...@gmail.com
, …
Jean-Paul Pelteret
9
8/4/17
Q&A
hp HDG in deal.II
Daniel, Now I have another question. I am trying to compute the L2 error over all the faces. For
unread,
dg_methods
hp_adaptivity
Q&A
hp HDG in deal.II
Daniel, Now I have another question. I am trying to compute the L2 error over all the faces. For
8/4/17
Jiaqi ZHANG
, …
Praveen C
9
9/20/16
Q&A
Interpolating values of the neighbor cells in DG
Thank you so much, Praveen. Your codes are really helpful. Regards, Jiaqi 2016-09-20 0:11 GMT-04:00
unread,
dg_methods
Q&A
Interpolating values of the neighbor cells in DG
Thank you so much, Praveen. Your codes are really helpful. Regards, Jiaqi 2016-09-20 0:11 GMT-04:00
9/20/16
Jiaqi Zhang
, …
Jiaqi ZHANG
3
8/29/16
Q&A
How to apply a point source condition (point boundary condition) in Discontinuous Galerkin methods
Thanks Bruno, I should have searched a little bit more. Best, Jiaqi 2016-08-29 11:00 GMT-04:00 Bruno
unread,
dg_methods
Q&A
How to apply a point source condition (point boundary condition) in Discontinuous Galerkin methods
Thanks Bruno, I should have searched a little bit more. Best, Jiaqi 2016-08-29 11:00 GMT-04:00 Bruno
8/29/16
Craig Michoski
, …
Jean-Paul Pelteret
4
4/30/16
Q&A
Point value at vertices with DG question
This question, also ask yesterday, provides additional insights into how to solve your problem. On
unread,
dg_methods
mpi
Q&A
Point value at vertices with DG question
This question, also ask yesterday, provides additional insights into how to solve your problem. On
4/30/16
Praveen C
,
Martin Kronbichler
5
3/5/16
Local solution vectors in HDG for MPI application
On Sat, Mar 5, 2016 at 1:24 PM, Martin Kronbichler <kronbichl...@gmail.com> wrote: So I
unread,
dg_methods
mpi
Local solution vectors in HDG for MPI application
On Sat, Mar 5, 2016 at 1:24 PM, Martin Kronbichler <kronbichl...@gmail.com> wrote: So I
3/5/16
Astor Piaz
2
3/4/16
PreconditionBlockJacobi (for a multigrid smoother, step-37 style)
Hello All, Found the answer: https://www.dealii.org/developer/doxygen/deal.II/Instantiations.html
unread,
dg_methods
linear_algebra
PreconditionBlockJacobi (for a multigrid smoother, step-37 style)
Hello All, Found the answer: https://www.dealii.org/developer/doxygen/deal.II/Instantiations.html
3/4/16
Weixiong Zheng
, …
Wolfgang Bangerth
15
4/5/16
Q&A
Undefined symbols when specifying component coupling for DG in 1D
On 04/05/2016 08:47 AM, Weixiong Zheng wrote: > It says deal.II 8.5 as what I saw in the VERSION
unread,
basics
bug
dg_methods
Q&A
Undefined symbols when specifying component coupling for DG in 1D
On 04/05/2016 08:47 AM, Weixiong Zheng wrote: > It says deal.II 8.5 as what I saw in the VERSION
4/5/16
Nectarios
, …
David Wells
11
2/22/16
Q&A
Accessing cells from a shared face for DG
Nectarios, Glad to help. Let me know if you have any questions on my work. Thanks, David Wells On
unread,
dg_methods
Q&A
Accessing cells from a shared face for DG
Nectarios, Glad to help. Let me know if you have any questions on my work. Thanks, David Wells On
2/22/16
aydar...@gmail.com
, …
Praveen C
9
11/10/15
Q&A
DG methods with linear time-dependent Advection-Diffusion PDE. Positive initial values and negative projection onto FE space and negative solution.
Thank you for replies. Mass lumping seems to work for initial projection. I will be trying to work
unread,
basics
dg_methods
Q&A
DG methods with linear time-dependent Advection-Diffusion PDE. Positive initial values and negative projection onto FE space and negative solution.
Thank you for replies. Mass lumping seems to work for initial projection. I will be trying to work
11/10/15