Re: [deal.II] Re: deal.ii and Trilinos

2016-06-08 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum

Re: [deal.II] Transfer of quadrature point history data after mesh refinement.

2016-06-14 Thread Wolfgang Bangerth
quadrature point data. Then you need a separate (second) SolutionTransfer object for the second DoFHandler. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu

Re: [deal.II] Re: Entry of the own problem in dealii

2016-06-22 Thread Wolfgang Bangerth
distance of the crack). This is what is done in step-1, for example. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth

Re: [deal.II] Fast FE evaluation over several points and several functions

2016-06-22 Thread Wolfgang Bangerth
is efficient and independent of the overall size of the problem. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth

Re: [deal.II] Adding dirichlet values to ConstraintMatrix

2016-06-23 Thread Wolfgang Bangerth
est W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see

Re: [deal.II] On the use of MappingFEField

2016-06-25 Thread Wolfgang Bangerth
github.com/dealii/dealii/pull/2717 Best W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see http

Re: [deal.II] Help with interpretation of PETSc and SLEPc error message.

2016-05-19 Thread Wolfgang Bangerth
s data file so that they can show the values in correct order just like in MATLAB. You can do this in gnuplot: set style data lines set hidden3d splot "M.gnuplot" using 1:2:3 Best W. -- ---- Wolfgang Bangerth

Re: [deal.II] Segmentation fault in WorkStream::run() for colored iterators in parallel(MPI)

2016-05-24 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https

Re: [deal.II] question about compute_projection_from_quadrature_points_matrix function

2016-07-26 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https

Re: [deal.II] Problem using WorkStream with a hp::DoFHandler

2016-07-26 Thread Wolfgang Bangerth
ument of the local assembly function to active_cell_iterator and it should all work. Best W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.

Re: [deal.II] Issue on Windows x64 Debug linkage

2016-07-28 Thread Wolfgang Bangerth
to work. Best W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://g

[deal.II] Re: Development activity over the past year

2016-07-31 Thread Wolfgang Bangerth
distinct people contributed code and documentation over the last year. I am particularly proud of the last number! Cheers W. -- Wolfgang Bangerth email:bange...@math.tamu.edu

[deal.II] Development activity over the past year

2016-07-31 Thread Wolfgang Bangerth
-- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum

Re: [deal.II] Re: A question about velocity correction in Step-35

2016-07-30 Thread Wolfgang Bangerth
Best W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/fo

Re: [deal.II] Re: Memory usage using MPI/PETSc on single processor

2016-07-30 Thread Wolfgang Bangerth
to add a comment to this effect to the program. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II

Re: [deal.II] HP with parallel::shared::Triangulation

2016-07-31 Thread Wolfgang Bangerth
computations. This is pretty high on our list to get implemented in parallel. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http

Re: [deal.II] Re: PETScWrappers::SparseDirectMUMPS for symmetry system matrix and factorization resue

2016-07-27 Thread Wolfgang Bangerth
On 07/27/2016 01:43 PM, Alexander wrote: step-17 claims to solve same problem as step-8. If one produces symmetry matrix and the other does not or both do not -- this is suspicious. The reason why the matrix in step-17 is not symmetric is actually explained in the code: // The last

Re: [deal.II] Re: casting a 4th order symm tensor to Tensor

2016-08-11 Thread Wolfgang Bangerth
This will then be in the next release as well, of course. Best Wolfgang -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth

Re: [deal.II] Observations on CPU usage on a single processor

2016-08-03 Thread Wolfgang Bangerth
ncy comes from. Also, it appears that the efficiency with one CPU decreases as the #DOF increase with PETSc/MPI. Does anyone know why? How do you define "efficiency"? Best W. -- ---- Wolfgang Bangerth

[deal.II] Daniel Arndt and Jean-Paul Pelteret appointed deal.II Developers

2016-08-12 Thread Wolfgang Bangerth
gang Bangerth -- ---- Wolfgang Bangerth email:bange...@colostate.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mai

Re: [deal.II] Re: Entry of the own problem in dealii

2016-07-12 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https

Re: [deal.II] Re: Problem building dealii with PETSc

2016-07-12 Thread Wolfgang Bangerth
enmpi" or "mpich"? > Is my inteperetation of the instructions correct, or do I have to > remove openmpi-dev. I'd try to start from as clean a slate as possible every time. Best W. -- ---- Wolfgang Ba

Re: [deal.II] Re: Problem building dealii with PETSc

2016-07-11 Thread Wolfgang Bangerth
--download-mpich. Best W. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http

Re: [deal.II] Dealing with conflicting constraints

2016-07-05 Thread Wolfgang Bangerth
e first one does the correct thing whereas the second may not. Want to fix this in the code and the documentation? Best W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu

Re: [deal.II] Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range

2016-07-05 Thread Wolfgang Bangerth
functions are being called. Once you find out which function creates the problem, you can again look at the arguments and local variables and see what is happening. Best W. -- Wolfgang Bangerth email

Re: [deal.II] (Multigrid) preconditioner for the PML method

2016-07-05 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see

Re: [deal.II] Re: Observations on CPU usage on a single processor

2016-08-05 Thread Wolfgang Bangerth
ations that are not parallelized take longer than those that are parallelized, and so overall lead to a lower average thread load. But that's only a theory that would require a lot more digging to verify. Best W. -- ---- Wolfgang Ba

Re: [deal.II] Re: Observations on CPU usage on a single processor

2016-08-05 Thread Wolfgang Bangerth
t good enough to really compete with the more complex algorithms (which are then harder to parallelize efficiently). Best W. -- ---- Wolfgang Bangerth email:bange...@colosta

Re: [deal.II] problems switching from one core to multiple cores - implementation of Chorin's scheme

2016-08-02 Thread Wolfgang Bangerth
On 08/02/2016 12:45 PM, Marek Čapek wrote: I coded it in the step-40 like manner. When I run it on one core (either ./main or mpirun -np 1 main ), the results are physically reasonable. However, when I switch to more cores, e.g. two - "mpirun -np 2 main", I get meaningless solutions. You know,

Re: [deal.II] Re: Development activity over the past year

2016-08-02 Thread Wolfgang Bangerth
On 08/02/2016 02:33 PM, David Wells wrote: About a year ago I did a bit of analysis on the commit rate: it has gone up significantly over the least few years. Just for fun I attached a plot of the total number of commits over time (as well as some important points in our history) to visualize

Re: [deal.II] problems switching from one core to multiple cores - implementation of Chorin's scheme

2016-08-02 Thread Wolfgang Bangerth
On 08/02/2016 02:18 PM, Vinetou Incucuna wrote: I have tried to output the solutions from the step one as well as from the step three. There is some development, but reasonable,i.e. solution from the first step and the third step look similar (except the first iteration) In the attachment you

Re: [deal.II] Caught signal number 11 SEGV: Segmentation Violation, probably memory access out of range

2016-07-03 Thread Wolfgang Bangerth
est W. -- ---- Wolfgang Bangerth email:bange...@math.tamu.edu www: http://www.math.tamu.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --

Re: [deal.II] error when trying to initialize PETSc preconditioners

2016-08-15 Thread Wolfgang Bangerth
On 08/15/2016 02:46 PM, Ignacio Tomas wrote: Great! Many thanks for solving this problem. I owe at least a lunch. Ah, now I'm jealous I left this easy to fix bug to Timo! ;-) Cheers W. -- Wolfgang Bangerth

[deal.II] Re: [dealii-developers] dealii.org website down?

2016-08-17 Thread Wolfgang Bangerth
on it -- expect things to come back up online in the (hopefully) not too far future. Best Wolfgang -- Wolfgang Bangerth email: bange...@colostate.edu www: http

Re: [deal.II] Extracting a component from Block FESystem and DofHandler

2016-08-16 Thread Wolfgang Bangerth
Cheers W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum op

Re: [deal.II] Re: Re_Error during installation of dealii.8.4.1

2017-02-02 Thread Wolfgang Bangerth
rce files) but can't read successfully. The solution is to do 'make clean' or just to blow away the build directory and start again. Best W. -- ---- Wolfgang Bangerth email: bange...@col

Re: [deal.II] internal compiler error: Bus error

2017-02-01 Thread Wolfgang Bangerth
if you compile with -j1? The kind of internal compiler error you have here seems to happen most often if you run out of memory. Best W. -- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] cannot call member function ‘void tbb::task::spawn(tbb::task&)’ without object

2017-01-31 Thread Wolfgang Bangerth
tion. What version of the TBB are you using? And can you look up the declaration of the spawn() function in task.h in your version of the TBB? Best W. -- ---- Wolfgang Bangerth email: b

Re: [deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Wolfgang Bangerth
then refine. Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http

Re: [deal.II] using VectorTools::interpolate_boundary_values :Simple verification of Stokes system with zero velocity (using step-22)

2017-02-01 Thread Wolfgang Bangerth
conditions. There is a description of boundary conditions for the Stokes equations in the introduction of step-22. Take a look there to see what you can and cannot impose for the Stokes equations. Best W. -- Wolfgang Bangerth

Re: [deal.II] Possible Mistake and improvement in QMRS implementation

2017-01-31 Thread Wolfgang Bangerth
ppreciated! Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.

Re: [deal.II] Shape function derivatives

2017-02-01 Thread Wolfgang Bangerth
quently, you do not have to multiply it by invJ again. This is the source of your factor of two. Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.mat

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-07 Thread Wolfgang Bangerth
one layer of ghosts, and the derived class is responsible for the communication? And then derive another class from DoFHandlerPolicy to deal with this triangulation? Best W. -- Wolfgang Bangerth email

Re: [deal.II] Fully distributed triangulation (level 0)

2017-02-07 Thread Wolfgang Bangerth
, and 45 sec assembly. Each core requires 9GB memory. This is why I want to reduce memory usage. Yes, I can see why the reorder step is annoying then. Best Wolfgang -- ---- Wolfgang Bangerth email:

Re: [deal.II] Assemble Righthand Side for vector-valued problem

2017-02-08 Thread Wolfgang Bangerth
that is so -- is your rhs correct, for example? Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II

Re: [deal.II] Assemble Righthand Side for vector-valued problem

2017-02-08 Thread Wolfgang Bangerth
want to multiply with. (Hint: The correct component is fe.system_to_component_index(i).first). Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http

Re: [deal.II] Re: Re_Error during installation of dealii.8.4.1

2017-02-04 Thread Wolfgang Bangerth
/dir/, which is a path you want to replace by the one where you want to install deal.II in :-) Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http

Re: [deal.II] using VectorTools::interpolate_boundary_values :Simple verification of Stokes system with zero velocity (using step-22)

2017-02-01 Thread Wolfgang Bangerth
aside, both the x and y components of the velocity are 0.0 ON the boundaries and 1.0 everywhere else. Are you calling constraints.distribute on the solution vector after solving your linear system? Best W. -- Wolfgang

Re: [deal.II] cannot call member function ‘void tbb::task::spawn(tbb::task&)’ without object

2017-01-31 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum

Re: [deal.II] cannot call member function ‘void tbb::task::spawn(tbb::task&)’ without object

2017-01-31 Thread Wolfgang Bangerth
Or wait for the patch I'm going to submit in a minute :-) Specifically, I would appreciate if you could see whether this helps: https://github.com/dealii/dealii/pull/3889 Best W. -- Wolfgang Bangerth email

Re: [deal.II] Fully distributed triangulation (level 0)

2017-01-31 Thread Wolfgang Bangerth
Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.c

Re: [deal.II] Re: Add heterogeneous parameters controlled by function on cells

2017-01-26 Thread Wolfgang Bangerth
e is truth to that. So, *unless you have measured that it is a problem*, then the simplest approach is the way to go. Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] Re: Assembly of material forces

2017-01-29 Thread Wolfgang Bangerth
a triangular mesh, whereas the other one is computed on a quadrilateral mesh. Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu

Re: [deal.II] Re: Add heterogeneous parameters controlled by function on cells

2017-01-25 Thread Wolfgang Bangerth
the Laplace equation, but if you see it happen there, you will know how it works for the elasticity equation as well.) Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] Assembly of material forces

2017-01-24 Thread Wolfgang Bangerth
at https://github.com/dealii/dealii/wiki/Frequently-Asked-Questions#im-stuck Extra question: Would my work be of interest for your code gallery maybe in the near future? If you have good questions, always! Best W. -- ---- Wolfgan

Re: [deal.II] Re: Approximate Derivative Tensor functionality

2017-02-15 Thread Wolfgang Bangerth
ne the order itself, depending on the argument you provide. Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ --

Re: [deal.II] A bug of visualization with VISIT

2017-02-21 Thread Wolfgang Bangerth
(neither of which are equal to the P2 function in deal.II). You can probably get a better picture by providing a positive argument to the build_patches() function. Best W. -- Wolfgang Bangerth email

Re: [deal.II] Example of using MeshWorker::Assembler::MGMatrixLocalBlocksToGlobalBlocks?

2017-02-17 Thread Wolfgang Bangerth
would be happy to contribute any changes required to get this to work. Can you open an issue on the github forum at https://github.com/dealii/dealii/issues It would be great to have a minimal example that shows the problem. Best W. -- -

Re: [deal.II] Reading user_indices from a vtk file.

2017-02-24 Thread Wolfgang Bangerth
ces. We do read material_ids, however. Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project

Re: [deal.II] Re: Access specific element within a distributed triangulation

2017-02-24 Thread Wolfgang Bangerth
which should not be such a big "deal" in deal.II. Because it's *not* easy. It's only easy if you consider simple situation like yours. But if you want to do complicated things, they generally turn out to be complicated. Best W. -- ----

Re: [deal.II] Re: FE_Q constructor

2017-02-23 Thread Wolfgang Bangerth
rm) to force one function to be constant in y-direction. But why care? 2d computations are so cheap these days. Can't you just assume that everything depends on x and y? Best W. -- ---- Wolfgang Bangerth

Re: [deal.II] bug in program only with adaptive mesh refinement

2017-02-23 Thread Wolfgang Bangerth
ror. It all depends on your equation. And how do the two meshes differ? Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostat

Re: [deal.II] A bug of visualization with VISIT

2017-02-22 Thread Wolfgang Bangerth
is used internally in deal.II, and (ii) what Visit plots is not what you output. But with higher arguments to build_patches, you get closer in both regards. Best W. -- Wolfgang Bangerth email

Re: [deal.II] FE_Q constructor

2017-02-22 Thread Wolfgang Bangerth
ve and why you want to mix 2d and 1d things? Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project

Re: [deal.II] bug in program only with adaptive mesh refinement

2017-02-22 Thread Wolfgang Bangerth
I do like this approach to testing. It shows great maturity in designing code and testing numerical methods to think this way. Well done! -- ---- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] second derivatives of solution

2017-02-12 Thread Wolfgang Bangerth
used for some purposes, but you need to know what you are doing. Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/

Re: [deal.II] Re: Recommendation: BCs in config

2017-02-14 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https

Re: [deal.II] Parameter map default value

2017-02-14 Thread Wolfgang Bangerth
lue), or indeed a positive integer. I'm going to note that figuring out that a string is indeed a positive integer (and nothing else) is not trivial. Best W. -- ---- Wolfgang Bangerth email: bange...@co

Re: [deal.II] Query using hdf5 with deal.ii

2017-02-14 Thread Wolfgang Bangerth
ok things up.) Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://ww

Re: [deal.II] second derivatives of solution

2017-02-12 Thread Wolfgang Bangerth
(a set of delta functions). I also attach the plot for d^2(solution)/dx^2 that look weird to me... I think it is plausible. It is at least not obviously wrong in my mind. Best W. -- Wolfgang Bangerth email

Re: [deal.II] Assemble Righthand Side for vector-valued problem

2017-02-09 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en

Re: [deal.II] Nonhomogeneous Dirichlet Boundary conditions using a Dirichlet lift

2017-02-09 Thread Wolfgang Bangerth
take a look at lectures 21.6 and 21.65 here: http://www.math.colostate.edu/~bangerth/videos.html Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] Efficient implementation of varying Dirichlet BCs when everything else in the system is constant

2016-08-19 Thread Wolfgang Bangerth
, 24, 25, 26 does this. Best Wolfgang -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located

Re: [deal.II] weakly enforcing an identity - vector mean curvature as the surface laplacian of the identity on a codim-1 manifold

2016-08-22 Thread Wolfgang Bangerth
hese data structures correctly - perhaps that LinearOperator inverse_mass_matrix is not just an ordinary dealii::Matrix that I can then apply to dealii::Vectors. Well, is system_rhs nonzero? Best W. -- Wolfgang Bangerth

[deal.II] Are you funded to write applications based on deal.II?

2016-08-22 Thread Wolfgang Bangerth
-- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum

Re: [deal.II] Does MappingFEField apply to all cells ?

2016-08-22 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum

Re: [deal.II] write_vtk fail when using hp functionality

2017-02-27 Thread Wolfgang Bangerth
er, set the breakpoint at the function suggested here, and see if you can get a backtrace? Alternatively, can you create a small, self-contained testcase that shows the problem? Best W. -- ---- Wolfgang Bangerth

Re: [deal.II] Configuring deal.ii error - can't pinpoint what the issue is

2017-02-28 Thread Wolfgang Bangerth
. Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org

Re: [deal.II] Re: Data exchanges in IO

2016-08-23 Thread Wolfgang Bangerth
d to above useful, or maybe not. We would be quite happy to take any updated text if you find that it can be improved! Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/

Re: [deal.II] weakly enforcing an identity - vector mean curvature as the surface laplacian of the identity on a codim-1 manifold

2016-08-23 Thread Wolfgang Bangerth
it there? (Maybe after rewriting it in such a way that you solve for all three components at once?) Cheers W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http

Re: [deal.II] Re: Installation/Tutorial 1 Issue

2016-08-25 Thread Wolfgang Bangerth
. For your own project, you can copy one of the existing example directories somewhere else, then call cmake -DDEAL_II_DIR=/where/you/installed/dealii . and it should still work. Best W. -- Wolfgang Bangerth email

Re: [deal.II] Re: Creating my own constraints matrix for applying dirichlet bc

2016-09-05 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https

Re: [deal.II] merging geometries(geo files) in gmsh for computational geometry definition

2016-09-05 Thread Wolfgang Bangerth
cells resulting from meshing of the first cylinder and the second. I believe it is the problem, which causes program crashes. Can you describe how exactly it "crashes"? There are so many possibilities... Best W. -- ---- Wo

Re: [deal.II] merging geometries(geo files) in gmsh for computational geometry definition

2016-09-05 Thread Wolfgang Bangerth
You probably need to talk to the people who wrote gmsh what this is supposed to mean. Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.ma

Re: [deal.II] Doubt regarding constraints

2016-09-06 Thread Wolfgang Bangerth
, both need to know about it. Q3. What happens when the processor 2 calls the same thing but in the other order ? Bad things. Don't do it :-) Best Wolfgang -- Wolfgang Bangerth email: bange

Re: [deal.II] modify solution vector

2016-09-02 Thread Wolfgang Bangerth
::interpolate on v(x) to get the nodal values V of v_h(x), and then add V to your solution vector U. I think that ought to be easier than what you suggest (though internally it does exactly that). Best W. -- Wolfgang Bangerth

Re: [deal.II] Re: applying 3D mesh in step-20

2016-09-04 Thread Wolfgang Bangerth
Is there anyway for me to show the inside of the calculated result to my boss? Use cutplanes, cutspheres, thresholds, etc., to cut away some cells while showing the others. Best Wolfgang -- ---- Wolfgang Ban

Re: [deal.II] Applying Multi Point Constraints

2016-09-07 Thread Wolfgang Bangerth
o dofs lie. Am I right here ? Correct. W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/

Re: [deal.II] matrix factorization reuse?

2016-08-30 Thread Wolfgang Bangerth
-- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii

Re: [deal.II] Help with Vector template instantiations

2016-09-14 Thread Wolfgang Bangerth
re are fully coupled and the boundary conditions can be set using the equations from the other software etc. That would make for a fantastic code gallery project! Best Wolfgang -- ---- Wolfgang Bangerth email:

Re: [deal.II] How to declare a constant that is used in a template?

2016-09-10 Thread Wolfgang Bangerth
t the main() function of ASPECT, for example: https://github.com/geodynamics/aspect/blob/master/source/main.cc lines 452-490. Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@col

Re: [deal.II] Problem creating a pull request on code-gallery

2016-09-08 Thread Wolfgang Bangerth
o create a pull request from your code-gallery fork against the code-gallery master repository. Does this help? Cheers W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu

Re: [deal.II] singularity error due to 1/0

2016-09-09 Thread Wolfgang Bangerth
ou can do about this -- it's not a question how you *compute* it, it's that that's what the *model* says. If you don't like it, you need to start thinking about whether that's the *correct model*! Best W. -- ---- W

Re: [deal.II] Help with Vector template instantiations

2016-09-10 Thread Wolfgang Bangerth
file is in the .inst file, which is #included in the .cc file. Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~ba

Re: [deal.II] Help with Vector template instantiations

2016-09-10 Thread Wolfgang Bangerth
. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl

Re: [deal.II] Doubt with data output in parallel

2016-09-14 Thread Wolfgang Bangerth
->is_locally_owned) data_array(index)=value; | or | for(;cell!=endc,++cell) if(cell->is_locally_owned()) data_array(cell->active_cell_index())=value; | Both will work. They are identical. Best W. --

Re: [deal.II] Help with Vector template instantiations

2016-09-14 Thread Wolfgang Bangerth
say so, and that's ok with me as well. Best Wolfgang -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II

Re: [deal.II] After the calculation, Can the result be used??

2016-09-09 Thread Wolfgang Bangerth
to be more specific. Best W. -- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http

Re: [deal.II] Help with Vector template instantiations

2016-09-10 Thread Wolfgang Bangerth
h file is the right solution. Want to try writing a patch for this? We'd be happy to merge it! Best Wolfgang -- ---- Wolfgang Bangerth email: bange...@colostate.edu www

Re: [deal.II] Re: Calculate surface integral over a boundary

2016-09-23 Thread Wolfgang Bangerth
Best W. -- ---- Wolfgang Bangerth email: bange...@colostate.edu www: http://www.math.colostate.edu/~bangerth/ -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options,

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