mapping of global dof indices after solution transfer

[Simon]

Dear all,

I am storing a std::vector<unsigned int> of size N holding global DOF indices living at some nodes of my mesh where we have measured experimental values.

After doing a SolutionTransfer motivated by AMR, I want to have the new global DOF indices at the same nodes, so the new vector of indices has the same size N.

I feel the only way to do this is to store the indices along with their support points before I enter the AMR cycle (so far I only store the indices) and determine the new indices after refinement by looping over the new mesh and check the support points for equality.

Is there a more efficient solution for this problem?

Thanks,

Simon

[Wolfgang Bangerth]

Simon,
I think this is the only way to do this. DoF indices are generally not
preserved across mesh refinement.

Best
W.

--
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Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/