Hello all,
>From the descriptions of Particle(
https://www.dealii.org/current/doxygen/deal.II/classParticles_1_1Particle.html)
and PropertyPool(
https://www.dealii.org/current/doxygen/deal.II/classParticles_1_1PropertyPool.html),
I know the properties of a particle should be ArrayView type.
I
On 9/6/19 1:36 AM, Konrad wrote:
>
> I was wondering if there is a simple way to parse input (e.g., from a
> parameter file) and use it similarly to the FunctionParser class (which
> works for vector valued functions) just for a TensorFunction.
Nothing I would know already does that. But the Fu
Dear Prof. Wolfgang,
Thank you very much for your reply and insight. I will
change the PETSc/SLEPc versions to 3.7.4/3.7.3 and see if that will solve
the issue.
On Wednesday, September 11, 2019 at 10:39:08 AM UTC-7, Pragalv Karki wrote:
>
> Dear deal.II community,
>
> I read step-21 and 43 tutorials which are closer to my task.
>
> I'd like to ask some guidelines on how to implement a water/oil with
> polymer concentration in that model. We still have two phases, but in
> the water phase there will be two components, aqueous and polymeric.
>
> Is there a
Pragalv,
I've tried to run step-36 on my workstation and it works just fine. Are
you running in parallel? You might also want to try a different version
of PETSc/SLEPc -- I am using 3.7.4/3.7.3 for the two.
I also tried to find out what error 76 actually means. I *think* that it
is this error
On 9/11/19 11:03 AM, Konrad wrote:
>
> That indeed depends on the geometry of the domain and it is not an
> obvious result. Example: Think of a 3D hyper-shell with an inner and
> outer radius. There is a one-dimensional space of non-trivial radial
> vector fields (with respect to the origin) th
Hi Charlie,
I can compile and run it. Could there be a problem with your deal.ii setup?
I am using v9.1.1.
Best,
Konrad
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Ok, will do that, thanks!
Am Mittwoch, 11. September 2019 16:52:51 UTC+2 schrieb Wolfgang Bangerth:
>
> On 9/11/19 3:27 AM, 'Maxi Miller' via deal.II User Group wrote:
> > In one of my side projects I include the library deal.II, but use it
> > only for reading in parameter files and printing ou
Dear deal.II community,
I am new to deal.II and I had posted a question about
this same issue yesterday. Perhaps I did not ask it correctly. I have been
trying to simulate the wave equation on a particular kind of surface (I
have attached a picture of that surface and the mesh
Hi Wolfgang,
> > Using approach 1.) I get timing results like that:
> > (using MPI with Petsc, AMG preconditioning for *A* on one machine with
> > four cores, no preconditioning for the Schur complement *S =
> > -B*A^{-1}*B^T + C* from 1.)
> >
> > Running using PETSc.
> > Number of active
On 9/11/19 7:04 AM, Konrad wrote:
>
> The system that needs to be solved formally reads
> *(P) A sigma + B^T u = 0
> *
> * B sigma + C u = f*
>
> *A* is sort of a mass matrix so it is positive (corresponds to
> ** in *H(curl)*) and *C* is positive semi-definite
> (corresponds to ** in
Am Dienstag, 10. September 2019 13:26:56 UTC+2 schrieb Bruno Blais:
>
> I second Wolfgang comment on the fact that Q1Q1 is not difficult to
> implement. You can also scale it to arbitrary Qn-Qn elements if you are
> interested in higher order.
> We have implemented such an approach in our code
Am Dienstag, 10. September 2019 13:26:56 UTC+2 schrieb Bruno Blais:
>
> I second Wolfgang comment on the fact that Q1Q1 is not difficult to
> implement. You can also scale it to arbitrary Qn-Qn elements if you are
> interested in higher order.
> We have implemented such an approach in our code ba
Dear Wolfgang,
Thank you very much for looking taking the time to answer my question,
I really appreciate it - such things do not happen to often on the
internet! ; )
Please find below my response per answer, I hope it is not too unstructured
that way!
Am Dienstag, 10. September 2019 06:03:27 U
>
> The minimal code.
>
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On 9/11/19 3:27 AM, 'Maxi Miller' via deal.II User Group wrote:
> In one of my side projects I include the library deal.II, but use it
> only for reading in parameter files and printing out data in the HDF5
> format. I included it mostly because it is in use in most of my main
> projects, and th
Hi there,
I'm trying to make step-20 parallel through trilinos (by following
step-40/55), but haven't succeeded. In setup_system() function, I set
owned_partitioning, relevant_partitioning and constraints in the following
way:
dof_handler.distribute_dofs (fe);
DoFRenumbering::component_wise(d
>
> However, when I run the command "mpirun -np 5 ./MPI_TEST", I get the
> following message,
>
> Hello world from process 0 of 1
> Hello world from process 0 of 1
> Hello world from process 0 of 1
> Hello world from process 0 of 1
> Hello world from process 0 of 1
>
> It seems that 5 cpu cores a
Yang,
Are sure that you compiled deal.II with MPI support? Also can you post
what you see when you do make VERBOSE=1
Best,
Bruno
On Wednesday, September 11, 2019 at 8:44:29 AM UTC-4, Yang Liu wrote:
>
> Dear Deal.II developers,
>
> Greetings!
>
> I am a new user of Deal.II. Currently I would
Dear deal.ii community,
Apologies for so many questions lately... but here is another one. This one
is a bit technical and aims at good solvers. In a simplified form you can
formulate it this way:
I implemented a PDE solver with a for the 3D vector Laplacian *curl(curl u)
- grad(div u) = f*. I
Dear Deal.II developers,
Greetings!
I am a new user of Deal.II. Currently I would like to test the hello world
program on Utilities::MPI.
A minimum working example is attached to this email.
However, when I run the command "mpirun -np 5 ./MPI_TEST", I get the
following message,
Hello world fro
In one of my side projects I include the library deal.II, but use it only
for reading in parameter files and printing out data in the HDF5 format. I
included it mostly because it is in use in most of my main projects, and
thus it already was available. Furthermore, being able to reuse parameter
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