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mld2p4-2:

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Salvatore Filippone
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@@ -7,8 +7,8 @@ original version by: Nikos Drakos, CBLU, University of Leeds
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
<HTML>
<HEAD>
<TITLE>Subroutine hierarchy_bld</TITLE>
<META NAME="description" CONTENT="Subroutine hierarchy_bld">
<TITLE>Subroutine smoothers_build</TITLE>
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@@ -20,52 +20,54 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<H2><A NAME="SECTION00084000000000000000"></A><A NAME="sec:hier_bld"></A>
<H2><A NAME="SECTION00085000000000000000"></A><A NAME="sec:smooth_bld"></A>
<BR>
Subroutine hierarchy_bld
Subroutine smoothers_build
</H2>
<P>
<DIV ALIGN="CENTER">
<code>call p%hierarchy_bld(a,desc_a,info)</code>
<code>call p%smoothers_build(a,desc_a,p,info)</code>
<BR>
</DIV>
<P>
This routine builds the hierarchy of matrices and restriction/prolongation
operators for the multi-level preconditioner <code>p</code>, according to the requirements
made by the user through the routines <code>init</code> and <code>set</code>.
This routine builds the smoothers and the coarsest-level solvers for the
multi-level preconditioner <code>p</code>, according to the requirements made by
the user through the routines <code>init</code> and <code>set</code>, and based on the aggregation
hierarchy produced by a previous call to <code>hierarchy_build</code>
(see Section&nbsp;<A HREF="node19.html#sec:hier_bld">6.4</A>).
<P>
<FONT SIZE="+1"><B>Arguments</B></FONT>
@@ -79,10 +81,9 @@ made by the user through the routines <code>init</code> and <code>set</code>.
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The sparse matrix structure containing the local part of the
matrix to be preconditioned. Note that <I>x</I> must be chosen according
to the real/complex,
single/double precision version of MLD2P4 under use.
to the real/complex, single/double precision version of MLD2P4 under use.
See the PSBLAS User's Guide for details [<A
HREF="node28.html#PSBLASGUIDE">16</A>].</TD>
HREF="node27.html#PSBLASGUIDE">17</A>].</TD>
</TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34><code>desc_a</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340><code>type(psb_desc_type), intent(in)</code>.</TD>
@@ -90,19 +91,18 @@ single/double precision version of MLD2P4 under use.
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The communication descriptor of <code>a</code>. See the PSBLAS User's Guide for
details [<A
HREF="node28.html#PSBLASGUIDE">16</A>].</TD>
HREF="node27.html#PSBLASGUIDE">17</A>].</TD>
</TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34><code>info</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340><code>integer, intent(out)</code>.</TD>
</TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>Error code. If no error, 0 is returned. See Section&nbsp;<A HREF="node26.html#sec:errors">8</A> for details.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>Error code. If no error, 0 is returned. See Section&nbsp;<A HREF="node25.html#sec:errors">8</A> for details.</TD>
</TR>
</TABLE>
<P>
<P>
<BR><HR>
</BODY>