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Take out SUB_REN.
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Salvatore Filippone
2017-04-18 13:48:34 +00:00
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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 mld_precbld</TITLE>
<META NAME="description" CONTENT="Subroutine mld_precbld">
<TITLE>Subroutine bld</TITLE>
<META NAME="description" CONTENT="Subroutine bld">
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@@ -26,26 +26,26 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<B> Next:</B> <A NAME="tex2html305"
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@@ -53,24 +53,23 @@ original version by: Nikos Drakos, CBLU, University of Leeds
<H2><A NAME="SECTION00083000000000000000"></A><A NAME="sec:precbld"></A>
<BR>
Subroutine mld_precbld
Subroutine bld
</H2>
<P>
<DIV ALIGN="CENTER">
<code>mld_precbld(a,desc_a,p,info)</code>
<code>call p%bld(a,desc_a,info)</code>
<BR>
</DIV>
<P>
This routine builds the preconditioner according to the requirements made by
the user through the routines <code>mld_precinit</code> and <code>mld_precset</code>.
This routine builds the one-level preconditioner <code>p</code> according to the requirements
made by the user through the routines <code>init</code> and <code>set</code>
(see Sections&nbsp;<A HREF="node20.html#sec:hier_bld">6.4</A> and&nbsp;<A HREF="node21.html#sec:smoothers_bld">6.5</A> for multi-level preconditioners).
<P>
For multilevel preconditioner this routine is supported for backward
compatibility, but we recommend to use the routines of
Sec.&nbsp;<A HREF="node20.html#sec:hier_bld">6.4</A> and&nbsp;<A HREF="node21.html#sec:smoothers_bld">6.5</A>.
<FONT SIZE="+1"><B>Arguments</B></FONT>
<FONT SIZE="+1"><B>Arguments</B></FONT>
<P></P>
<P>
<TABLE CELLPADDING=3>
@@ -80,10 +79,9 @@ Sec.&nbsp;<A HREF="node20.html#sec:hier_bld">6.4</A> and&nbsp;<A HREF="node21.ht
<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="node27.html#PSBLASGUIDE">16</A>].</TD>
HREF="node28.html#PSBLASGUIDE">16</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>
@@ -91,46 +89,54 @@ 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="node27.html#PSBLASGUIDE">16</A>].</TD>
</TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34><code>p</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340><code>type(mld_</code><I>x</I><code>prec_type), intent(inout)</code>.</TD>
</TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The preconditioner data structure. Note that <I>x</I> must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use.</TD>
HREF="node28.html#PSBLASGUIDE">16</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="node25.html#sec:errors">7</A> for details.</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>
</TR>
</TABLE>
<P>
For compatibility with the previous versions of MLD2P4, this routine can be also invoked
as follows:
<P>
<DIV ALIGN="CENTER">
<code>call mld_precbld(p,what,val,info)</code>
</DIV>
<P>
In this case, the routine can be used to build multi-level preconditioners too.
<P>
<P>
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