Core client: file structure

The core client runs in a BOINC home directory. It creates and uses the following files and directories within the home directory:

• prefs.xml: The user's latest preferences; see below.
• client_state.xml: a description of the files, application, workunits and results present on this client.
• Each project has a project subdirectory whose name is an encoded version of the project's master URL. This subdirectory contains all files (inputs, outputs, executables) related to the project.
• slots: this directory contains one subdirectory for each CPU "slot" (normally there are as many slots as the host has CPUs). The subdirectories are named 0, 1, ... N-1.

Each result executes in particular slot directory. The core client creates "soft link" files in the slot directory, linking to the corresponding files in the project directory.

Format of prefs.xml

This format of prefs.xml is as follows:

<preferences>
    <prefs_mod_time>1030128387</prefs_mod_time>
    <from_project>http://www.myproject.com/</from_project>
    <from_scheduler>http://server3.myproject.com/cgi-bin/scheduler_cgi</from_scheduler>
    <mod_time>2</mod_time>
    <high_water_days>2</high_water_days>
    <low_water_days>1</low_water_days>
    <project>
        <master_url>http://www.myproject.com/</master_url>
        <authenticator>3f7b90793a0175ad0bda68684e8bd136</authenticator>
        <resource_share>1</resource_share>
    </project>
    <project>
        <master_url>http://www.project2.com/</master_url>
        <authenticator>3f7b90793a0175ad0bda68684e8bd136</authenticator>
        <resource_share>1</resource_share>
    </project>
</preferences>