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4.6 Interfaces to/from other code</A>
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<P>
Codes <TT>pw2bgw.x</TT> and <TT>bgw2pw.x</TT> convert data files from
<TT>pw.x</TT> to a format suitable for usage by the Berkeley GW code, and vice
versa. See files <TT>Doc/INPUT_pw2bgw.*</TT> and <TT>Doc/INPUT_bgw2pw.*</TT>
for input data documentation. NOTE: <TT>bgw2pw.x</TT> works only with the
"old" and no longer supported I/O format.
<P>
Code <TT>pw2gw.x</TT> converts data files from <TT>pw.x</TT> to a format suitable
for usage by another GW code, computes optical properties in single-particle
approach (Fermi Golden Rule). See file <TT>Doc/INPUT_pw2gw.html</TT>
for input data documentation, directory <TT>pw2gw_example/</TT>
for an example of usage.
<P>
Code <TT>open_grid.x</TT> writes Kohn-Sham orbitals for the complete
k-point grid (not symetry-independent points only) in real space.
Useful for further processing. It can be used to generate the
Kohn-Sham state data required in <TT>pw2wannier.x</TT> and Wannier90
from the initial SCF calculation, bypassing the non-SCF calculation
step.
<P>
Code <TT>pw2critic.x</TT> is an interface to the CRITIC2 code by
Alberto Otero-de-la-Roza. This program creates a <TT>pwc</TT> file
containing the Kohn-Sham orbitals from an SCF calculation (or from the
output of <TT>open_grid.x</TT>). These orbitals are used for
post-processing in CRITIC2.
<P>
Code <TT>pw_export.f90</TT>, no longer compiled by default and obsolete,
is an interface to other codes, documented in <TT>Doc/INPUT_pw_export.*</TT>.
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