92 lines
4.3 KiB
HTML
92 lines
4.3 KiB
HTML
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<head>
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<title>GNU libgomp: Implementing REDUCTION clause</title>
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<link href="Library-Index.html#Library-Index" rel="index" title="Library Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Implementing-PARALLEL-construct.html#Implementing-PARALLEL-construct" rel="next" title="Implementing PARALLEL construct">
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<link href="Implementing-FIRSTPRIVATE-LASTPRIVATE-COPYIN-and-COPYPRIVATE-clauses.html#Implementing-FIRSTPRIVATE-LASTPRIVATE-COPYIN-and-COPYPRIVATE-clauses" rel="prev" title="Implementing FIRSTPRIVATE LASTPRIVATE COPYIN and COPYPRIVATE clauses">
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Implementing-REDUCTION-clause"></a>
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<div class="header">
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<p>
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Next: <a href="Implementing-PARALLEL-construct.html#Implementing-PARALLEL-construct" accesskey="n" rel="next">Implementing PARALLEL construct</a>, Previous: <a href="Implementing-FIRSTPRIVATE-LASTPRIVATE-COPYIN-and-COPYPRIVATE-clauses.html#Implementing-FIRSTPRIVATE-LASTPRIVATE-COPYIN-and-COPYPRIVATE-clauses" accesskey="p" rel="prev">Implementing FIRSTPRIVATE LASTPRIVATE COPYIN and COPYPRIVATE clauses</a>, Up: <a href="The-libgomp-ABI.html#The-libgomp-ABI" accesskey="u" rel="up">The libgomp ABI</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Library-Index.html#Library-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Implementing-REDUCTION-clause-1"></a>
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<h3 class="section">9.9 Implementing REDUCTION clause</h3>
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<p>The private struct mentioned in the previous section should have
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a pointer to an array of the type of the variable, indexed by the
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thread’s <var>team_id</var>. The thread stores its final value into the
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array, and after the barrier, the master thread iterates over the
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array to collect the values.
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</p>
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</body>
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</html>
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