[INPUT FILES]
All files used by \fBgray\fR are only named by convention since their filenames
must be manually specified, except the parameters file.
The latter defaults to \fCgray_params.data\fR and is configured using the
\fB-p\fR option. All other filepaths are relative to its parent directory.

.TP
.I gray.ini
GRAY main configuration file

.TP
.I gray_params.data
Legacy configuration file

This file allows configuring all the parameters of a GRAY simulation, including
all other input files.
.TP
.I beamdata.txt
Beam description file

This file contains the the description of the EC beam and additional parameters
of the wave launcher.
.TP
.I magneticdata.eqdsk
MHD equilibrium description file

This file is contains the description of the tokamak MHD equilibrium in the
standard G-EQDSK format.
.TP
.I profiles.txt
Plasma kinetic profiles file

This file contains the radial profiles of the plasma temperature, density and
effective charge.

[OUTPUT FILES]
GRAY output files are named according to the Fortran unit number (e.g
\fCfort.4\fR) and written to the current directory, by default. The
location can be changed with the \fB-o\fR option.

For a list of the unit numbers and their descriptions see the GRAY user manual.

[SEE ALSO]
\fBgray.ini\fR(5), \fBgray_params.data\fR(5), \fBbeamdata.txt\fR(5), \fBprofiles.txt\fR(5)