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216 lines
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216 lines
5.6 KiB
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original version by: Nikos Drakos, CBLU, University of Leeds
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* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
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* with significant contributions from:
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<TITLE>psb_glob_to_loc -- Global to local indices convertion</TITLE>
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HREF="node62.html">psb_loc_to_glob Local</A>
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<H2><A NAME="SECTION000717000000000000000">
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psb_glob_to_loc -- Global to local indices
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convertion</A>
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</H2>
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<P>
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<PRE>
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call psb_glob_to_loc(x, y, desc_a, info, iact,owned)
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call psb_glob_to_loc(x, desc_a, info, iact,owned)
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</PRE>
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<P>
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<DL>
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<DT><STRONG>Type:</STRONG></DT>
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<DD>Asynchronous.
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</DD>
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<DT><STRONG><B>On Entry</B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>x</STRONG></DT>
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<DD>An integer vector of indices to be converted.
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<BR>
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Scope: <B>local</B>
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<BR>
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Type: <B>required</B>
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<BR>
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Intent: <B>in, inout</B>.
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<BR>
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Specified as: a rank one integer array.
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<BR></DD>
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<DT><STRONG>desc_a</STRONG></DT>
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<DD>the communication descriptor.
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<BR>
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Scope:<B>local</B>.
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<BR>
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Type:<B>required</B>.
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
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</DD>
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<DT><STRONG>iact</STRONG></DT>
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<DD>specifies action to be taken in case of range errors.
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Scope: <B>global</B>
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<BR>
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Type: <B>optional</B>
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<BR>
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Intent: <B>in</B>.
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<BR>
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Specified as: a character variable <code>I</code>gnore, <code>W</code>arning or
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<code>A</code>bort, default <code>I</code>gnore.
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</DD>
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<DT><STRONG>owned</STRONG></DT>
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<DD>Specfies valid range of input
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Scope: <B>global</B>
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<BR>
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Type: <B>optional</B>
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<BR>
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Intent: <B>in</B>.
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<BR>
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If true, then only indices strictly owned by the current process are
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considered valid, if false then halo indices are also
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accepted. Default: false.
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</DD>
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</DL>
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<P>
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<DL>
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<DT><STRONG><B>On Return</B></STRONG></DT>
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<DD>
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</DD>
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<DT><STRONG>x</STRONG></DT>
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<DD>If <IMG
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WIDTH="13" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
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SRC="img28.png"
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ALT="$y$"> is not present,
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then <IMG
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WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
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SRC="img27.png"
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ALT="$x$"> is overwritten with the translated integer indices.
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Scope: <B>global</B>
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<BR>
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Type: <B>required</B>
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<BR>
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Intent: <B>inout</B>.
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<BR>
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Specified as: a rank one integer array.
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</DD>
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<DT><STRONG>y</STRONG></DT>
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<DD>If <IMG
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WIDTH="13" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
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SRC="img28.png"
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ALT="$y$"> is present,
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then <IMG
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WIDTH="13" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
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SRC="img28.png"
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ALT="$y$"> is overwritten with the translated integer indices, and <IMG
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WIDTH="13" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
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SRC="img27.png"
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ALT="$x$">
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is left unchanged.
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Scope: <B>global</B>
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<BR>
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Type: <B>optional</B>
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<BR>
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Intent: <B>out</B>.
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<BR>
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Specified as: a rank one integer array.
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</DD>
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<DT><STRONG>info</STRONG></DT>
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<DD>Error code.
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<BR>
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Scope: <B>local</B>
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<BR>
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Type: <B>required</B>
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<BR>
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Intent: <B>out</B>.
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<BR>
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An integer value; 0 means no error has been detected.
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</DD>
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</DL>
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<P>
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<FONT SIZE="+1"><B>Notes</B></FONT>
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<OL>
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<LI>If an input index is out of range, then the corresponding output
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index is set to a negative number;
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</LI>
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<LI>The default <code>I</code>gnore means that the negative output is the
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only action taken on an out-of-range input.
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</LI>
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</OL>
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<P>
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HREF="node62.html">psb_loc_to_glob Local</A>
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<B> Up:</B> <A NAME="tex2html946"
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HREF="node44.html">Data management routines</A>
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<B> Previous:</B> <A NAME="tex2html940"
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HREF="node60.html">psb_gelp Applies</A>
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<B> <A NAME="tex2html948"
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