Hi,

I was trying to understand dealii-pft/step-5 
<https://github.com/peterrum/dealii-pft/blob/master/step-5/src/main.cpp> 
and implement something similar in my code, but there are some things which 
are confusing for me!

As from line 55, Author copies the data from serial triangulation to a 
fully distributed triangulation and then reinitialize it:  







*// create instance of pftparallel::fullydistributed::Triangulation<dim> 
tria_pft(comm);// extract relevant information form serial 
triangulationauto construction_data 
=parallel::fullydistributed::Utilities::copy_from_triangulation(basetria, 
tria_pft);// actually create 
triangulationtria_pft.reinit(construction_data)*;

As I tried to implement similar, firstly I cannot find any function called 
*reinit 
*for triangulation file. Also, the way *construction_data *has been 
created, I was unable to find function called *copy_from_triangulation *for 
doing the same! I am assuming that this is because I have not included 
proper header file.

I can see that author has included <*deal.II/distributed/tria_util.h*> in 
the code, but it was not available atleast in dealii version 9.2.0 or 9.3.0 
. 

Can anyone suggest something for this?

Looking forward to some valuable suggestions.


Thanks and Regards,
Aditya



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