[deal.II] Re: tests fail

Thanks Daniel, I think that the problem was that I didnt use HYPRE while configuring PETSC. Anyway since I'm not going to use PETSC I compiled deal without and worked On Thursday, August 11, 2016 at 2:30:31 PM UTC-7, Daniel Arndt wrote: > > Giorgis, > > This looks like a problem with your PET

[deal.II] Re: Vector-valued gradient of solution vector

Joel, Does the equation you want to solve for have multiple components? Otherwise it would not make sense to multiply in the right hand side something with a gradient. If you want to project the gradient into a vector valued finite element ansatz space, then the matrix you are assembling looks

[deal.II] Re: tests fail

Giorgis, This looks like a problem with your PETSc installation. Can you confirm that it is installed correctly? Do any problems appear if you compile deal.II without PETSc? Best, Daniel Am Donnerstag, 11. August 2016 22:16:49 UTC+2 schrieb Giorgos Kourakos: > > Hi, > > I'm trying to compile a

[deal.II] tests fail

Hi, I'm trying to compile a recent version of deal and I'm getting the following error during the tests as well as when I compile the step-1 ../../lib/libdeal_II.g.so.8.4.1: error: undefined reference to 'PCHYPRESetType' Any ideas what is wrong? thank you Giorgos -- The deal.II project i

[deal.II] does the latest dealii prepackaged image file for Mac OSX come with 'other software packages' such as p4est, PETSc, Trilinos, etc?

It's not clear to me from the github dealii wiki for MacOSX whether or not the prepackaged image file for OSX comes with all of the optional third party libraries that are listed as optional software

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

On 06/14/2016 08:01 AM, Anup Basak wrote: Thanks for the reply. Yes, I have already done what you suggested. But I think that casting operation should be incorporated. It will be once the following patch (or a variant of it) will be merged: https://github.com/dealii/dealii/pull/2950 This wil

[deal.II] Re: Extra layer around mesh

Joel, On Thursday, August 11, 2016 at 11:29:35 AM UTC-4, Joel Davidsson wrote: > > > I just had a question about the third option. If one used FE_Nothing, what > is the boundary that is used when doing calculations? Is it the boundary of > the big box or the green box? Is this handle automatical

[deal.II] Re: Extra layer around mesh

Thank you for a great answer, The subdivided grid generator approach worked fine for me. I just had a question about the third option. If one used FE_Nothing, what is the boundary that is used when doing calculations? Is it the boundary of the big box or the green box? Is this handle automatic

[deal.II] Vector-valued gradient of solution vector

Dear all, I was wondering how to get the vector-valued gradient of solution vector. If I have my solution f (a scalar field, from the Poisson equation for example), I would like to get u = \nabla f. I started by adding this weak form to the assemble_system, but I got stuck. This is what I got s