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[<rndgiro@ig.com.br>]

I am trying to use BigDFT with Abinit and I have some doubts:

1) I do not need any convergence study, like for wvl_hgrid wich is the 
similar 
as ecut in psp-normconserv.? I just need convergence study for k points if my
system is not a "molecule in a big box" ?

2) There is some gain in CPU time and hardware resources like memory if I use
BigDFT instead of plane wave formalism to deal with systems containing many
atoms and a vacuum layer?

Thanks in advance,

Ronaldo Giro