mirror of
https://github.com/sfilippone/psblas3.git
synced 2026-10-15 02:19:05 +00:00
Document DESC%CNV method and MOLD arguments to CDASB and PREC%BUILD
This commit is contained in:
Salvatore Filippone
+89
-84
@@ -1,87 +1,112 @@
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
|
||||
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
||||
|
||||
<!--Converted with LaTeX2HTML 2012 (1.2)
|
||||
original version by: Nikos Drakos, CBLU, University of Leeds
|
||||
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
|
||||
* with significant contributions from:
|
||||
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
|
||||
<!--Converted with LaTeX2HTML 2017.2 (Released Jan 23, 2017) -->
|
||||
<HTML>
|
||||
<HEAD>
|
||||
<TITLE>psb_info -- Return information about PSBLAS parallel environment</TITLE>
|
||||
<META NAME="description" CONTENT="psb_info -- Return information about PSBLAS parallel environment">
|
||||
<TITLE>psb_init -- Initializes PSBLAS parallel environment</TITLE>
|
||||
<META NAME="description" CONTENT="psb_init -- Initializes PSBLAS parallel environment">
|
||||
<META NAME="keywords" CONTENT="userhtml">
|
||||
<META NAME="resource-type" CONTENT="document">
|
||||
<META NAME="distribution" CONTENT="global">
|
||||
|
||||
<META NAME="Generator" CONTENT="LaTeX2HTML v2012">
|
||||
<META NAME="Generator" CONTENT="LaTeX2HTML v2017.2">
|
||||
<META HTTP-EQUIV="Content-Style-Type" CONTENT="text/css">
|
||||
|
||||
<LINK REL="STYLESHEET" HREF="userhtml.css">
|
||||
|
||||
<LINK REL="next" HREF="node101.html">
|
||||
<LINK REL="previous" HREF="node99.html">
|
||||
<LINK REL="up" HREF="node98.html">
|
||||
<LINK REL="up" HREF="node99.html">
|
||||
<LINK REL="next" HREF="node101.html">
|
||||
</HEAD>
|
||||
|
||||
<BODY >
|
||||
<!--Navigation Panel-->
|
||||
<A NAME="tex2html1512"
|
||||
|
||||
<DIV CLASS="navigation"><!--Navigation Panel-->
|
||||
<A NAME="tex2html1515"
|
||||
HREF="node101.html">
|
||||
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
||||
<A NAME="tex2html1508"
|
||||
HREF="node98.html">
|
||||
<A NAME="tex2html1511"
|
||||
HREF="node99.html">
|
||||
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
||||
<A NAME="tex2html1502"
|
||||
<A NAME="tex2html1505"
|
||||
HREF="node99.html">
|
||||
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
||||
<A NAME="tex2html1510"
|
||||
<A NAME="tex2html1513"
|
||||
HREF="node1.html">
|
||||
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
||||
<BR>
|
||||
<B> Next:</B> <A NAME="tex2html1513"
|
||||
HREF="node101.html">psb_exit Exit</A>
|
||||
<B> Up:</B> <A NAME="tex2html1509"
|
||||
HREF="node98.html">Parallel environment routines</A>
|
||||
<B> Previous:</B> <A NAME="tex2html1503"
|
||||
HREF="node99.html">psb_init Initializes</A>
|
||||
<B> <A NAME="tex2html1511"
|
||||
<B> Next:</B> <A NAME="tex2html1516"
|
||||
HREF="node101.html">psb_info Return</A>
|
||||
<B> Up:</B> <A NAME="tex2html1512"
|
||||
HREF="node99.html">Parallel environment routines</A>
|
||||
<B> Previous:</B> <A NAME="tex2html1506"
|
||||
HREF="node99.html">Parallel environment routines</A>
|
||||
<B> <A NAME="tex2html1514"
|
||||
HREF="node1.html">Contents</A></B>
|
||||
<BR>
|
||||
<BR>
|
||||
<BR></DIV>
|
||||
<!--End of Navigation Panel-->
|
||||
|
||||
<H2><A NAME="SECTION00082000000000000000">
|
||||
psb_info -- Return information about PSBLAS parallel
|
||||
<H2><A NAME="SECTION00081000000000000000">
|
||||
psb_init -- Initializes PSBLAS parallel
|
||||
environment</A>
|
||||
</H2>
|
||||
|
||||
<P>
|
||||
<PRE>
|
||||
call psb_info(icontxt, iam, np)
|
||||
call psb_init(icontxt, np, basectxt, ids)
|
||||
</PRE>
|
||||
|
||||
<P>
|
||||
This subroutine returns information about the PSBLAS parallel environment, defining
|
||||
This subroutine initializes the PSBLAS parallel environment, defining
|
||||
a virtual parallel machine.
|
||||
<DL>
|
||||
<DT><STRONG>Type:</STRONG></DT>
|
||||
<DD>Asynchronous.
|
||||
<DD>Synchronous.
|
||||
</DD>
|
||||
<DT><STRONG><B>On Entry </B></STRONG></DT>
|
||||
<DD>
|
||||
</DD>
|
||||
<DT><STRONG>icontxt</STRONG></DT>
|
||||
<DD>the communication context identifying the virtual
|
||||
parallel machine.
|
||||
<DT><STRONG>np</STRONG></DT>
|
||||
<DD>Number of processes in the PSBLAS virtual parallel machine.
|
||||
<BR>
|
||||
Scope: <B>global</B>.
|
||||
<BR>
|
||||
Type: <B>required</B>.
|
||||
Type: <B>optional</B>.
|
||||
<BR>
|
||||
Intent: <B>in</B>.
|
||||
<BR>
|
||||
Specified as: an integer variable.
|
||||
Specified as: an integer value. Default: use all available processes.
|
||||
</DD>
|
||||
<DT><STRONG>basectxt</STRONG></DT>
|
||||
<DD>the initial communication context. The new context
|
||||
will be defined from the processes participating in the initial one.
|
||||
<BR>
|
||||
Scope: <B>global</B>.
|
||||
<BR>
|
||||
Type: <B>optional</B>.
|
||||
<BR>
|
||||
Intent: <B>in</B>.
|
||||
<BR>
|
||||
Specified as: an integer value. Default: use MPI_COMM_WORLD.
|
||||
</DD>
|
||||
<DT><STRONG>ids</STRONG></DT>
|
||||
<DD>Identities of the processes to use for the new context; the
|
||||
argument is ignored when <code>np</code> is not specified. This allows the
|
||||
processes in the new environment to be in an order different from the
|
||||
original one.
|
||||
<BR>
|
||||
Scope: <B>global</B>.
|
||||
<BR>
|
||||
Type: <B>optional</B>.
|
||||
<BR>
|
||||
Intent: <B>in</B>.
|
||||
<BR>
|
||||
Specified as: an integer array. Default: use the indices <SPAN CLASS="MATH"><IMG
|
||||
WIDTH="93" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
|
||||
SRC="img92.png"
|
||||
ALT="$(0\dots np-1)$"></SPAN>.
|
||||
</DD>
|
||||
</DL>
|
||||
|
||||
@@ -90,24 +115,11 @@ Specified as: an integer variable.
|
||||
<DT><STRONG><B>On Return</B></STRONG></DT>
|
||||
<DD>
|
||||
</DD>
|
||||
<DT><STRONG>iam</STRONG></DT>
|
||||
<DD>Identifier of current process in the PSBLAS virtual parallel machine.
|
||||
<BR>
|
||||
Scope: <B>local</B>.
|
||||
<BR>
|
||||
Type: <B>required</B>.
|
||||
<BR>
|
||||
Intent: <B>out</B>.
|
||||
<BR>
|
||||
Specified as: an integer value. <!-- MATH
|
||||
$-1 \le iam \le np-1$
|
||||
-->
|
||||
<IMG
|
||||
WIDTH="139" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
|
||||
SRC="img126.png"
|
||||
ALT="$-1 \le iam \le np-1$"> </DD>
|
||||
<DT><STRONG>np</STRONG></DT>
|
||||
<DD>Number of processes in the PSBLAS virtual parallel machine.
|
||||
<DT><STRONG>icontxt</STRONG></DT>
|
||||
<DD>the communication context identifying the virtual
|
||||
parallel machine. Note that this is always a duplicate of
|
||||
<code>basectxt</code>, so that library communications are completely
|
||||
separated from other communication operations.
|
||||
<BR>
|
||||
Scope: <B>global</B>.
|
||||
<BR>
|
||||
@@ -115,57 +127,50 @@ Type: <B>required</B>.
|
||||
<BR>
|
||||
Intent: <B>out</B>.
|
||||
<BR>
|
||||
Specified as: an integer variable. </DD>
|
||||
Specified as: an integer variable.
|
||||
</DD>
|
||||
</DL>
|
||||
|
||||
<P>
|
||||
<FONT SIZE="+1"><B>Notes</B></FONT>
|
||||
<BIG CLASS="LARGE"><B>Notes</B></BIG>
|
||||
|
||||
<OL>
|
||||
<LI>For processes in the virtual parallel machine the identifier
|
||||
will satisfy <!-- MATH
|
||||
$0 \le iam \le np-1$
|
||||
-->
|
||||
<IMG
|
||||
WIDTH="128" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
|
||||
SRC="img127.png"
|
||||
ALT="$0 \le iam \le np-1$">;
|
||||
<LI>A call to this routine must precede any other PSBLAS call.
|
||||
</LI>
|
||||
<LI>If the user has requested on <code>psb_init</code> a number of
|
||||
processes less than the total available in the parallel execution
|
||||
environment, the remaining processes will have on return <IMG
|
||||
WIDTH="73" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
|
||||
SRC="img128.png"
|
||||
ALT="$iam=-1$">;
|
||||
the only call involving <code>icontxt</code> that any such process may
|
||||
execute is to <code>psb_exit</code>.
|
||||
<LI>It is an error to specify a value for <SPAN CLASS="MATH"><IMG
|
||||
WIDTH="22" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
|
||||
SRC="img125.png"
|
||||
ALT="$np$"></SPAN> greater than the
|
||||
number of processes available in the underlying base parallel
|
||||
environment.
|
||||
</LI>
|
||||
</OL>
|
||||
|
||||
<P>
|
||||
<HR>
|
||||
|
||||
<DIV CLASS="navigation"><HR>
|
||||
<!--Navigation Panel-->
|
||||
<A NAME="tex2html1512"
|
||||
<A NAME="tex2html1515"
|
||||
HREF="node101.html">
|
||||
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
|
||||
<A NAME="tex2html1508"
|
||||
HREF="node98.html">
|
||||
<A NAME="tex2html1511"
|
||||
HREF="node99.html">
|
||||
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
|
||||
<A NAME="tex2html1502"
|
||||
<A NAME="tex2html1505"
|
||||
HREF="node99.html">
|
||||
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
|
||||
<A NAME="tex2html1510"
|
||||
<A NAME="tex2html1513"
|
||||
HREF="node1.html">
|
||||
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
|
||||
<BR>
|
||||
<B> Next:</B> <A NAME="tex2html1513"
|
||||
HREF="node101.html">psb_exit Exit</A>
|
||||
<B> Up:</B> <A NAME="tex2html1509"
|
||||
HREF="node98.html">Parallel environment routines</A>
|
||||
<B> Previous:</B> <A NAME="tex2html1503"
|
||||
HREF="node99.html">psb_init Initializes</A>
|
||||
<B> <A NAME="tex2html1511"
|
||||
HREF="node1.html">Contents</A></B>
|
||||
<B> Next:</B> <A NAME="tex2html1516"
|
||||
HREF="node101.html">psb_info Return</A>
|
||||
<B> Up:</B> <A NAME="tex2html1512"
|
||||
HREF="node99.html">Parallel environment routines</A>
|
||||
<B> Previous:</B> <A NAME="tex2html1506"
|
||||
HREF="node99.html">Parallel environment routines</A>
|
||||
<B> <A NAME="tex2html1514"
|
||||
HREF="node1.html">Contents</A></B> </DIV>
|
||||
<!--End of Navigation Panel-->
|
||||
|
||||
</BODY>
|
||||
|
||||
Reference in New Issue
Block a user