fdurastante/psblas3
1
0
Fork 0
mirror of https://github.com/sfilippone/psblas3.git synced 2026-10-07 15:14:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

psblas3:

Browse Source 
Documentation changes. We have barely begun.....
This commit is contained in:
Salvatore Filippone
2011-12-16 16:45:25 +00:00
parent c730f15b58
commit 844a942947
243 changed files with 14860 additions and 15182 deletions
Download Patch File Download Diff File Expand all files Collapse all files
docs/html/node70.html
+56 -185
View File
@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
<HTML>
<HEAD>
<TITLE>psb_sp_getrow -- Extract row(s) from a sparse matrix</TITLE>
<META NAME="description" CONTENT="psb_sp_getrow -- Extract row(s) from a sparse matrix">
<TITLE>psb_sizeof -- Memory occupation</TITLE>
<META NAME="description" CONTENT="psb_sizeof -- Memory occupation">
<META NAME="keywords" CONTENT="userhtml">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
@@ -20,45 +20,49 @@ original version by: Nikos Drakos, CBLU, University of Leeds
<LINK REL="next" HREF="node71.html">
<LINK REL="previous" HREF="node69.html">
<LINK REL="up" HREF="node45.html">
<LINK REL="up" HREF="node44.html">
<LINK REL="next" HREF="node71.html">
</HEAD>
<BODY >
<!--Navigation Panel-->
<A NAME="tex2html1059"
<A NAME="tex2html1057"
HREF="node71.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html1055"
HREF="node45.html">
<A NAME="tex2html1053"
HREF="node44.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html1049"
<A NAME="tex2html1047"
HREF="node69.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html1057"
<A NAME="tex2html1055"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1060"
HREF="node71.html">psb_sizeof Memory</A>
<B> Up:</B> <A NAME="tex2html1056"
HREF="node45.html">Data management routines</A>
<B> Previous:</B> <A NAME="tex2html1050"
HREF="node69.html">psb_get_overlap Extract</A>
&nbsp; <B> <A NAME="tex2html1058"
<B> Next:</B> <A NAME="tex2html1058"
HREF="node71.html">Sorting utilities</A>
<B> Up:</B> <A NAME="tex2html1054"
HREF="node44.html">Data management routines</A>
<B> Previous:</B> <A NAME="tex2html1048"
HREF="node69.html">psb_sp_getrow Extract</A>
&nbsp; <B> <A NAME="tex2html1056"
HREF="node1.html">Contents</A></B>
<BR>
<BR>
<!--End of Navigation Panel-->
<H2><A NAME="SECTION000725000000000000000">
psb_sp_getrow -- Extract row(s) from a sparse matrix</A>
<H2><A NAME="SECTION000726000000000000000">
psb_sizeof -- Memory occupation</A>
</H2>
<P>
This function computes the memory occupation of a PSBLAS object.
<P>
<PRE>
call psb_sp_getrow(row, a, nz, ia, ja, val, info, &amp;
&amp; append, nzin, lrw)
isz = psb_sizeof(a)
isz = psb_sizeof(desc_a)
isz = psb_sizeof(prec)
</PRE>
<P>
@@ -69,189 +73,56 @@ call psb_sp_getrow(row, a, nz, ia, ja, val, info, &amp;
<DT><STRONG><B>On Entry</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>row</STRONG></DT>
<DD>The (first) row to be extracted.
<BR>
Scope:<B>local</B>
<BR>
Type:<B>required</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer <IMG
WIDTH="29" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img109.png"
ALT="$&gt;0$">.
</DD>
<DT><STRONG>a</STRONG></DT>
<DD>the matrix from which to get rows.
<DD>A sparse matrix
<IMG
WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img1.png"
ALT="$A$">.
<BR>
Scope:<B>local</B>
Scope: <B>local</B>
<BR>
Type:<B>required</B>
Type: <B>required</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a structured data of type spdata<TT>psb_spmat_type</TT>.
</DD>
<DT><STRONG>append</STRONG></DT>
<DD>Whether to append or overwrite existing output.
<BR>
Scope:<B>local</B>
<BR>
Type:<B>optional</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a logical value default: false (overwrite).
</DD>
<DT><STRONG>nzin</STRONG></DT>
<DD>Input size to be appended to.
<BR>
Scope:<B>local</B>
<BR>
Type:<B>optional</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer <IMG
WIDTH="29" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img109.png"
ALT="$&gt;0$">. When append is true, specifies how many
entries in the output vectors are already filled.
</DD>
<DT><STRONG>lrw</STRONG></DT>
<DD>The last row to be extracted.
<BR>
Scope:<B>local</B>
<BR>
Type:<B>optional</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: an integer <IMG
WIDTH="29" HEIGHT="30" ALIGN="MIDDLE" BORDER="0"
SRC="img109.png"
ALT="$&gt;0$">, default: <IMG
WIDTH="31" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img110.png"
ALT="$row$">.
<P>
</DD>
</DL>
<P>
<DL>
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>nz</STRONG></DT>
<DD>the number of elements returned by this call.
<BR>
Scope:<B>local</B>.
<BR>
Type:<B>required</B>.
<BR>
Intent: <B>out</B>.
<BR>
Returned as: an integer scalar.
</DD>
<DT><STRONG>ia</STRONG></DT>
<DD>the row indices.
<BR>
Scope:<B>local</B>.
<BR>
Type:<B>required</B>.
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: an integer array with the <code>ALLOCATABLE</code> attribute.
</DD>
<DT><STRONG>ja</STRONG></DT>
<DD>the column indices of the elements to be inserted.
<BR>
Scope:<B>local</B>.
<BR>
Type:<B>required</B>.
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: an integer array with the <code>ALLOCATABLE</code> attribute.
</DD>
<DT><STRONG>val</STRONG></DT>
<DD>the elements to be inserted.
<BR>
Scope:<B>local</B>.
<BR>
Type:<B>required</B>.
<BR>
Intent: <B>inout</B>.
<BR>
Specified as: a real array with the <code>ALLOCATABLE</code> attribute.
</DD>
<DT><STRONG>info</STRONG></DT>
<DD>Error code.
<DT><STRONG>desc_a</STRONG></DT>
<DD>Communication descriptor.
<BR>
Scope: <B>local</B>
<BR>
Type: <B>required</B>
Type: <B>required</B>
<BR>
Intent: <B>out</B>.
Intent: <B>in</B>.
<BR>
An integer value; 0 means no error has been detected.
Specified as: a structured data of type descdata<TT>psb_desc_type</TT>.
</DD>
<DT><STRONG>prec</STRONG></DT>
<DD>Scope: <B>local</B>
<BR>
Type: <B>required</B>
<BR>
Intent: <B>in</B>.
<BR>
Specified as: a preconditioner data structure precdata<TT>psb_prec_type</TT>.
</DD>
<DT><STRONG><B>On Return</B></STRONG></DT>
<DD>
</DD>
<DT><STRONG>Function value</STRONG></DT>
<DD>The memory occupation of the object specified in
the calling sequence, in bytes.
<BR>
Scope: <B>local</B>
<BR>
Returned as: an <code>integer(psb_long_int_k_)</code> number.
</DD>
</DL>
<P>
<FONT SIZE="+1"><B>Notes</B></FONT>
<OL>
<LI>The output <IMG
WIDTH="22" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img101.png"
ALT="$nz$"> is always the size of the output generated by
the current call; thus, if <code>append=.true.</code>, the total output
size will be <IMG
WIDTH="74" HEIGHT="29" ALIGN="MIDDLE" BORDER="0"
SRC="img111.png"
ALT="$nzin+nz$">, with the newly extracted coefficients stored in
entries <code>nzin+1:nzin+nz</code> of the array arguments;
</LI>
<LI>When <code>append=.true.</code> the output arrays are reallocated as
necessary;
</LI>
<LI>The row and column indices are returned in the local numbering
scheme; if the global numbering is desired, the user may employ the
<code>psb_loc_to_glob</code> routine on the output.
</LI>
</OL>
<P>
<HR>
<!--Navigation Panel-->
<A NAME="tex2html1059"
HREF="node71.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html1055"
HREF="node45.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html1049"
HREF="node69.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html1057"
HREF="node1.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html1060"
HREF="node71.html">psb_sizeof Memory</A>
<B> Up:</B> <A NAME="tex2html1056"
HREF="node45.html">Data management routines</A>
<B> Previous:</B> <A NAME="tex2html1050"
HREF="node69.html">psb_get_overlap Extract</A>
&nbsp; <B> <A NAME="tex2html1058"
HREF="node1.html">Contents</A></B>
<!--End of Navigation Panel-->
<BR><HR>
</BODY>
</HTML>