= Preferences override file =
By default, [GlobalPrefs global preferences] and host venue are maintained on a project server, edited via a web interface, and downloaded from the server. Some people may want to edit preferences locally, modify preferences on a single host, or hardwire the host venue. To accommodate these requirements, BOINC lets you create a 'preferences override file'. This file is read by the core client after it reads the preferences from the server, and it overrides those preferences.
The preferences override file is named `global_prefs_override.xml`. Its structure as follows:
{{{
0
0
0
0
0
0
0
0
0
0.1
2
60
60
100
50
0.1
75
50
90
3
0
0
100
[ venue ]
}}}
If you write a program for editing preferences locally, you'll want to be able to tell a running core client to reread the preferences override file. You can do this using the [http://boinc.berkeley.edu/gui_rpc.php read_global_prefs_override()] GUI RPC. Or you can stop and start the core client.