Re: [Libmesh-users] Error computation with ExactSolution class

2017-06-26 Thread John Peterson
On Thu, Jun 22, 2017 at 5:19 PM, Vikram Garg wrote: > Hello Laura, >IIRC, the exact solution class is to enable comparisons > of a numerical solution with an analytic solution. Since you are seeking to > The meshdiff.C app is intended for exactly the purpose it's being used f

Re: [Libmesh-users] Error computation with ExactSolution class

2017-06-22 Thread Vikram Garg
Hello Laura, IIRC, the exact solution class is to enable comparisons of a numerical solution with an analytic solution. Since you are seeking to compare a coarse and fine numerical solution, I think the UniformRefinementEstimator might be the right functionality to use. Adaptivi

[Libmesh-users] Error computation with ExactSolution class

2017-06-21 Thread Laura Scarabosio
Hi everybody, I would like to perform a convergence study computing the difference in L2 and H1 norm between the solution on a coarser grid and another one on a finer grid, obtained using uniformly_refine(). To do this, I saved the two meshes and solutions in .xdr. Then I took the meshdiff.C