Big-Data-HPC-Platform/docs/ECLStandardLibraryReference/SLR-Mods/Nodes.xml

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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
<sect1 id="Nodes">
  <title><emphasis role="bold">Nodes</emphasis></title>

  <para><emphasis role="bold">STD.System.Thorlib.Nodes<indexterm>
      <primary>STD.System.Thorlib.Nodes</primary>
    </indexterm><indexterm>
      <primary>System.Thorlib.Nodes</primary>
    </indexterm><indexterm>
      <primary>Thorlib.Nodes</primary>
    </indexterm><indexterm>
      <primary>Nodes</primary>
    </indexterm>(</emphasis> <emphasis> </emphasis> <emphasis
  role="bold">)</emphasis></para>

  <informaltable colsep="0" frame="none" rowsep="0">
    <tgroup cols="2">
      <colspec colwidth="80.50pt" />

      <colspec />

      <tbody>
        <row>
          <entry>Return:<emphasis> </emphasis></entry>

          <entry>Nodes returns an UNSIGNED INTEGER4 value.</entry>
        </row>
      </tbody>
    </tgroup>
  </informaltable>

  <para>The <emphasis role="bold">Nodes </emphasis>function returns the number
  of nodes in the Thor cluster (always returns 1 on hThor and Roxie). This
  number is the same as the CLUSTERSIZE compile time constant. The Nodes
  function is evaluated each time it is called, so the choice to use the
  function versus the constant depends upon the circumstances.</para>

  <para>Example:</para>

  <programlisting format="linespecific">A := STD.System.Thorlib.Nodes();</programlisting>
</sect1>