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Document DESC%CNV method and MOLD arguments to CDASB and PREC%BUILD

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Salvatore Filippone
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<TITLE>psb_rcv -- Receive data</TITLE>
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<TITLE>psb_snd -- Send data</TITLE>
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<H2><A NAME="SECTION000816000000000000000">
psb_rcv -- Receive data</A>
<H2><A NAME="SECTION000815000000000000000">
psb_snd -- Send data</A>
</H2>
<P>
<PRE>
call psb_rcv(icontxt, dat, src, m)
call psb_snd(icontxt, dat, dst, m)
</PRE>
<P>
This subroutine receives a packet of data to a destination.
This subroutine sends a packet of data to a destination.
<DL>
<DT><STRONG>Type:</STRONG></DT>
<DD>Synchronous: see usage notes.
<DD>Synchronous: see usage notes.
</DD>
<DT><STRONG><B>On Entry </B></STRONG></DT>
<DD>
@@ -80,8 +78,24 @@ Intent: <B>in</B>.
<BR>
Specified as: an integer variable.
</DD>
<DT><STRONG>src</STRONG></DT>
<DD>Source process.
<DT><STRONG>dat</STRONG></DT>
<DD>The data to be sent.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>required</B>.
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer, real or complex variable, which may be a
scalar, or a rank 1 or 2 array, or a character or logical scalar. Type, kind and rank must agree on sender and receiver process; if <SPAN CLASS="MATH"><IMG
WIDTH="18" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img133.png"
ALT="$m$"></SPAN> is
not specified, size must agree as well.
</DD>
<DT><STRONG>dst</STRONG></DT>
<DD>Destination process.
<BR>
Scope: <B>global</B>.
<BR>
@@ -90,12 +104,12 @@ Type: <B>required</B>.
Intent: <B>in</B>.
<BR>
Specified as: an integer value <!-- MATH
$0<= src <= np-1$
$0<= dst <= np-1$
-->
<IMG
WIDTH="147" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img139.png"
ALT="$0&lt;= src &lt;= np-1$">.
<SPAN CLASS="MATH"><IMG
WIDTH="145" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img134.png"
ALT="$0&lt;= dst &lt;= np-1$"></SPAN>.
<BR></DD>
<DT><STRONG>m</STRONG></DT>
<DD>Number of rows.
@@ -109,19 +123,19 @@ Intent: <B>in</B>.
Specified as: an integer value <!-- MATH
$0<= m <= size(dat,1)$
-->
<IMG
<SPAN CLASS="MATH"><IMG
WIDTH="172" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
SRC="img135.png"
ALT="$0&lt;= m &lt;= size(dat,1)$">.
ALT="$0&lt;= m &lt;= size(dat,1)$"></SPAN>.
<BR>
When <IMG
When <SPAN CLASS="MATH"><IMG
WIDTH="26" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img136.png"
ALT="$dat$"> is a rank 2 array, specifies the number of rows to be sent
independently of the leading dimension <IMG
ALT="$dat$"></SPAN> is a rank 2 array, specifies the number of rows to be sent
independently of the leading dimension <SPAN CLASS="MATH"><IMG
WIDTH="83" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
SRC="img137.png"
ALT="$size(dat,1)$">; must have the
ALT="$size(dat,1)$"></SPAN>; must have the
same value on sending and receiving processes.
</DD>
</DL>
@@ -131,60 +145,45 @@ same value on sending and receiving processes.
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>dat</STRONG></DT>
<DD>The data to be received.
<BR>
Scope: <B>local</B>.
<BR>
Type: <B>required</B>.
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: an integer, real or complex variable, which may be a
scalar, or a rank 1 or 2 array, or a character or logical scalar. Type, kind and rank must agree on sender and receiver process; if <IMG
WIDTH="18" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img133.png"
ALT="$m$"> is
not specified, size must agree as well.
</DD>
</DL>
<P>
<FONT SIZE="+1"><B>Notes</B></FONT>
<BIG CLASS="LARGE"><B>Notes</B></BIG>
<OL>
<LI>This subroutine implies a synchronization, but only between the
calling process and the source process <IMG
WIDTH="26" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img140.png"
ALT="$src$">.
calling process and the destination process <SPAN CLASS="MATH"><IMG
WIDTH="25" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img138.png"
ALT="$dst$"></SPAN>.
</LI>
</OL>
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