mirror of https://github.com/BOINC/boinc.git
63 lines
2.1 KiB
PHP
63 lines
2.1 KiB
PHP
<?php
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require_once("docutil.php");
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page_head("Applications and versions");
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echo "
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<p>
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An <b>application</b> represents a collection of related computation.
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It consists of a program (perhaps with versions for different platforms)
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and a set of <a href=work.php>workunits</a> and <a href=result.php>results</a>.
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A project can operate many applications.
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Applications are maintained in the <b>application</b> table in the BOINC DB,
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and can be created using the <a href=tool_xadd.php>xadd</a> utility.
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<p>
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An application program may go through a sequence of
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<a href=boinc_version.php>versions</a>.
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A particular version, compiled for a particular platform, is
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called an <b>application version</b>.
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An application version can consist of multiple files: for example, a
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controller script, pre- and post-processing programs, and a primary program.
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<p>
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Each application version has an integer <b>version number</b>.
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This number is of the form 100*major + minor;
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for example, 304 represents major version 3 and minor version 4.
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An application version will only run on a core client
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having the same major version.
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Version numbers should be used consistently across platforms;
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Windows version 304 should be computationally identical to Mac version 304.
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<p>
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Each application has a <b>minimum version</b>.
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When a client is sent work for an application,
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it is also sent the latest application version for its platform.
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It is sent work only if this version is the minimum or greater.
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<p>
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Application versions are maintained in the <b>app_version</b> table
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in the BOINC DB.
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Each entry includes an XML document describing the
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files that make up the application version:
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<pre>".htmlspecialchars("
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<file_info>
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...
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</file_info>
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[ ... ]
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<app_version>
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<app_name>foobar</app_name>
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<version_num>4</version_num>
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<file_ref>
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<file_name>program_1</file_name>
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<main_program/>
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</file_ref>
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<file_ref>
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<file_name>library_12</file_name>
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</file_ref>
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</app_version>")."
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</pre>
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Application versions can be created using
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<a href=tool_update_versions.php>update_versions</a>.
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";
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page_tail();
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?>
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