The error is from compute_component_wise on level = 0, the result it returns
don't equal to dof_handler.n_dofs(level).
I added a MPI_Barrier between first and second loop but error is not eliminated.
Snipaste_2022-11-28_12-53-02.png
I do not see this error. Are you running in debug mode? And with how many MPI
processes?
As a side note: The detour by writing the data to a file and then reading it
again is very inefficient, in particular if you have many MPI processes. If
you want to use GridOut/GridIn, let the former write the data into an object
of type std::ostringstream, then use Utilities::MPI::broadcast() to send the
string you get out of std::ostringstream to the other processes, and give it
to a std::istringstream object. Then use GridIn on the std::istringstream
object. This way, no data transfer to or from disk is necessary -- it all
happens in memory.
Best
Wolfgang
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Wolfgang Bangerth email: bange...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/
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