2002-07-29 19:01:38 +00:00
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
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"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<html lang="en">
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<head>
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<title>Preferences</title>
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<meta name="generator" content="BBEdit 6.1.2">
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</head>
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<body>
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<h2>Preferences</h2>
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2002-04-30 22:22:54 +00:00
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<p>
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2002-07-29 19:01:38 +00:00
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Participants can specify <b>preferences</b> determining and limiting
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how BOINC uses their computers. Preferences are divided into three
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groups:
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</p>
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<ul>
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<li>
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<b>Work preferences</b>
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</li>
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<ul>
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<li>
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Whether work (computation and network transfer) should be done
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while the host is being used (i.e. during keyboard and mouse input).
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</li>
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<li>
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Whether work should be done while the computer is being powered
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by batteries.
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</li>
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<li>
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Whether to wait for user confirmation before making network
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connections.
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</li>
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<li>
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Minimum and maximum amounts of work to maintain on disk. These
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values are expressed as time values. The client will try to ensure it
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has at least enough work to keep it busy for x days, and at most y days.
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If the host is frequently disconnected from the Internet, the minimum
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level should be at least as long as the typical period of disconnection.
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The larger the difference between minimum and maximum, the less often
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BOINC will connect to the Internet.
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</li>
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</ul>
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<li>
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<b>Disk preferences</b>
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</li>
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BOINC's usage of disk space can be limited in one or more of the
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following ways:
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2002-05-29 23:25:21 +00:00
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<ul>
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<li>
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Maximum disk space used by BOINC.
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</li>
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<li>
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Maximum disk percentage used by BOINC.
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</li>
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<li>
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Minimum disk space to keep free.
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</li>
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</ul>
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<li>
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<b>Project preferences</b> (one set for each project)
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</li>
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<ul>
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<li>
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Master URL of project
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</li>
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<li>
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Email address
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</li>
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<li>
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Authenticator
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</li>
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<li>
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Resource share: if projects contend for resources, the amount
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allocated to a project is proportional to this number.
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</li>
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<li>
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Whether to show email address on web site
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</li>
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<li>
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Whether project should send emails to user
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</li>
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<li>
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Whether this is the home project (see below)???.
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</li>
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<li>
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Project-specific preferences
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</li>
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2002-05-29 23:25:21 +00:00
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</ul>
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</ul>
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2002-04-30 22:22:54 +00:00
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<p>
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2002-07-29 19:01:38 +00:00
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Each participant has a single set of preferences. If you want to
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have different preferences for different hosts, you must create a
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separate accounts.
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</p>
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<h3>Propagation of preferences</h3>
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<p>
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The BOINC core client on each host stores a copy of its user's
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preferences. Whenever a host contacts a scheduling server, the request
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message includes the preferences and their last-modification time. If
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the server has a more recently modified version of the preferences, it
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returns these to the client. Thus a change to preferences is quickly
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propagated to all hosts, and to the databases of all enrolled projects.
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A participant may edit preferences on the web site of any enrolled
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project; however, care should be taken to ensure that a change isn't
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overwritten by an earlier change. The easiest way to do this is to edit
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preferences only at one web site.
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</p>
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</body>
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</html>
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