error while using refine_and_coarsen_fixed_number

[Darius Barreto]

Hello everyone,

I am working with adaptive meshing for a one dimensional rod problem. The function refine_and_coarsen_fixed_number has not been instantiated for the class template parameters?.

I am getting the following error message.

/home/darius/elastic_deadtest_adaptive/dead_load_adaptive.cc:710: error: undefined reference to 'void dealii::GridRefinement::refine_and_coarsen_fixed_number<1, float, 3>(dealii::Triangulation<1, 3>&, dealii::Vector<float> const&, double, double, unsigned int)'

collect2: error: ld returned 1 exit status

CMakeFiles/dead_load_adaptive.dir/build.make:103: recipe for target 'dead_load_adaptive' failed

Thanks in advance

Regards

Darius Barreto

[Bruno Turcksin]

Darius,

On Thursday, May 30, 2019 at 7:27:47 AM UTC-4, Darius Barreto wrote:

I am working with adaptive meshing for a one dimensional rod problem. The function refine_and_coarsen_fixed_number has not been instantiated for the class template parameters?.

No it hasn't. You can't do dim=1 and spacedim=3 but you can do dim=1 and spacedim=2. You can add the explicit instantiation here for dim=1 and spacedim=3 but I don't know if the code will works. Any reason why you need spacedim to be 3?

Best,

Bruno

[Darius Barreto]

Thanks for the reply. By saying spacedim 3, I mean that the rod (being one dimensional) can deform in the three dimensional space.

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[Bruno Turcksin]

Darius,

Le jeu. 30 mai 2019 à 08:48, Darius Barreto <dariu...@gmail.com> a écrit :
> Thanks for the reply. By saying spacedim 3, I mean that the rod (being one dimensional) can deform in the three dimensional space.

Sure but does the deformation happens in a plan. If you bend a rod,
the deformation is in a plan so you can use a two dimensional space.
It's only if you want to do something more complicated that you need a
three dimensional space.

Best,

Bruno

[Darius Barreto]

Dear Bruno,

I agree to you. But I am dealing with the one dimensional rod theory and I want to understand more complicated deformation modes, so I go for spacedim 3.

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