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<TITLE> S-Lang PVM Module Reference: Using the PVM Module</TITLE>
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<H2><A NAME="s2">2.</A> <A HREF="pvm.html#toc2">Using the PVM Module</A></H2>
<P>To use the <CODE>PVM</CODE> module in a <B>S-lang</B> script, it is first
necessary to make the functions in the package known to the
interpreter via
<BLOCKQUOTE><CODE>
<PRE>
() = evalfile ("pvm");
</PRE>
</CODE></BLOCKQUOTE>
or, if the application embedding the interpreter supports the
<CODE>require</CODE> function,
<BLOCKQUOTE><CODE>
<PRE>
require ("pvm");
</PRE>
</CODE></BLOCKQUOTE>
may be used. If there is a namespace conflict between symbols in the
script and those defined in the module, it may be necessary to load
the PVM package into a namespace, e.g.,
<BLOCKQUOTE><CODE>
<PRE>
() = evalfile ("pvm", "p");
</PRE>
</CODE></BLOCKQUOTE>
will place the PVM symbols into a namespace called <CODE>p</CODE>.</P>
<P>Once the PVM module has been loaded, the functions it defines
may be used in the usual way, e.g.,
<BLOCKQUOTE><CODE>
<PRE>
require ("pvm");
.
.
variable master_tid = pvm_mytid ();
</PRE>
</CODE></BLOCKQUOTE>
where <CODE>pvm_mytid</CODE> is the PVM function which returns the
task identifier of the calling process.</P>
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