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Minor documentation changes.

 mlprec/mld_prec_type.f90
Fixed implicit none everywhere.
stopcriterion
Salvatore Filippone 17 years ago
parent bf7b5ad3de
commit 0a436e66d8
11 changed files with 743 additions and 743 deletions
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@ -137,7 +137,7 @@ refer to Section&nbsp;<A HREF="node11.html#sec:background">4</A>.
<P> <P>
<BR><P></P> <BR><P></P>
<DIV ALIGN="CENTER"><A NAME="1251"></A> <DIV ALIGN="CENTER"><A NAME="1252"></A>
<TABLE> <TABLE>
<CAPTION><STRONG>Table 2:</STRONG> <CAPTION><STRONG>Table 2:</STRONG>
Parameters defining the type of multi-level preconditioner. Parameters defining the type of multi-level preconditioner.
@ -181,7 +181,7 @@ Parameters defining the type of multi-level preconditioner.
<P> <P>
<BR><P></P> <BR><P></P>
<DIV ALIGN="CENTER"><A NAME="1253"></A> <DIV ALIGN="CENTER"><A NAME="1254"></A>
<TABLE> <TABLE>
<CAPTION><STRONG>Table 3:</STRONG> <CAPTION><STRONG>Table 3:</STRONG>
Parameters defining the one-level preconditioner used as smoother. Parameters defining the one-level preconditioner used as smoother.
@ -281,7 +281,7 @@ Parameters defining the one-level preconditioner used as smoother.
<P> <P>
<BR><P></P> <BR><P></P>
<DIV ALIGN="CENTER"><A NAME="1255"></A> <DIV ALIGN="CENTER"><A NAME="1256"></A>
<TABLE> <TABLE>
<CAPTION><STRONG>Table 4:</STRONG> <CAPTION><STRONG>Table 4:</STRONG>
Parameters defining the aggregation algorithm. Parameters defining the aggregation algorithm.
@ -291,29 +291,29 @@ Parameters defining the aggregation algorithm.
<TABLE CELLPADDING=3 BORDER="1" ALIGN="CENTER"> <TABLE CELLPADDING=3 BORDER="1" ALIGN="CENTER">
<TR><TD ALIGN="LEFT"><code>what</code></TD> <TR><TD ALIGN="LEFT"><code>what</code></TD>
<TD ALIGN="LEFT"><SMALL>DATA TYPE</SMALL></TD> <TD ALIGN="LEFT"><SMALL>DATA TYPE</SMALL></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65><code>val</code></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><code>val</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><SMALL>DEFAULT</SMALL></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><SMALL>DEFAULT</SMALL></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198><SMALL>COMMENTS</SMALL></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198><SMALL>COMMENTS</SMALL></TD>
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_alg_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_alg_</code></TD>
<TD ALIGN="LEFT"><code>character(len=*)</code></TD> <TD ALIGN="LEFT"><code>character(len=*)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65><TT>'DEC'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'DEC'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><TT>'DEC'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'DEC'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Aggregation algorithm. Currently, only the decoupled aggregation is available.</TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Aggregation algorithm. Currently, only the decoupled aggregation is available.</TD>
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_kind_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_kind_</code></TD>
<TD ALIGN="LEFT"><code>character(len=*)</code></TD> <TD ALIGN="LEFT"><code>character(len=*)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65><TT>'SMOOTH'</TT> <TT>'RAW'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'SMOOTH'</TT> <TT>'RAW'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><TT>'SMOOTH'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'SMOOTH'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Type of aggregation: smoothed, raw (i.e. using the tentative prolongator).</TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Type of aggregation: smoothed, raw (i.e. using the tentative prolongator).</TD>
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_thresh_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_thresh_</code></TD>
<TD ALIGN="LEFT"><code>real(</code><I>kind_parameter</I><code>)</code></TD> <TD ALIGN="LEFT"><code>real(</code><I>kind_parameter</I><code>)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65>Any&nbsp;real&nbsp;num. <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68>Any&nbsp;real&nbsp;num. <IMG
WIDTH="56" HEIGHT="36" ALIGN="MIDDLE" BORDER="0" WIDTH="56" HEIGHT="36" ALIGN="MIDDLE" BORDER="0"
SRC="img90.png" SRC="img90.png"
ALT="$\in [0, 1]$"></TD> ALT="$\in [0, 1]$"></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74>0</TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68>0</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Threshold <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Threshold <IMG
WIDTH="13" HEIGHT="15" ALIGN="BOTTOM" BORDER="0" WIDTH="13" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img91.png" SRC="img91.png"
@ -321,49 +321,57 @@ Parameters defining the aggregation algorithm.
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_omega_alg_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_omega_alg_</code></TD>
<TD ALIGN="LEFT"><code>character(len=*)</code></TD> <TD ALIGN="LEFT"><code>character(len=*)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65><TT>'USER_CHOICE'</TT> <TT>'EIG_EST'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'EIG_EST'</TT> <TT>'USER_CHOICE'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><TT>'EIG_EST'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'EIG_EST'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>How the damping parameter <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>How the damping parameter <IMG
WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img84.png" SRC="img84.png"
ALT="$\omega$"> in the ALT="$\omega$"> in the
smoothed aggregation should be computed: smoothed aggregation should be computed:
either via an estimate of the eigenvalue either via an estimate of the spectral radius of
<IMG <IMG
WIDTH="50" HEIGHT="21" ALIGN="BOTTOM" BORDER="0" WIDTH="50" HEIGHT="21" ALIGN="BOTTOM" BORDER="0"
SRC="img85.png" SRC="img85.png"
ALT="$D^{-1}A$"> with largest modulus, or explicily ALT="$D^{-1}A$">, or explicily
specified by the user.</TD> specified by the user.</TD>
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_eig_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_eig_</code></TD>
<TD ALIGN="LEFT"><code>character(len=*)</code></TD> <TD ALIGN="LEFT"><code>character(len=*)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65><TT>'A_NORMI'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'A_NORMI'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><TT>'A_NORMI'</TT></TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><TT>'A_NORMI'</TT></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>How to estimate the eigenvalue <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>How to estimate the spectral radius of <IMG
WIDTH="50" HEIGHT="21" ALIGN="BOTTOM" BORDER="0" WIDTH="50" HEIGHT="21" ALIGN="BOTTOM" BORDER="0"
SRC="img85.png" SRC="img85.png"
ALT="$D^{-1}A$"> with largest modulus. ALT="$D^{-1}A$">.
Currently only the infinity norm estimate Currently only the infinity norm estimate
is available.</TD> is available.</TD>
</TR> </TR>
<TR><TD ALIGN="LEFT"><code>mld_aggr_damp_</code></TD> <TR><TD ALIGN="LEFT"><code>mld_aggr_damp_</code></TD>
<TD ALIGN="LEFT"><code>real(</code><I>kind_parameter</I><code>)</code></TD> <TD ALIGN="LEFT"><code>real(</code><I>kind_parameter</I><code>)</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=65>Any&nbsp;nonnegative&nbsp;real&nbsp;num.</TD> <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68>Any&nbsp;nonnegative&nbsp;real&nbsp;num.</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=74><!-- MATH <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=68><!-- MATH
$4/(3|\lambda_{max}(D^{-1}A)|)$ $4/(3\rho(D^{-1}A))$
--> -->
<IMG <IMG
WIDTH="151" HEIGHT="39" ALIGN="MIDDLE" BORDER="0" WIDTH="113" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img92.png" SRC="img92.png"
ALT="$4/(3\vert\lambda_{max}(D^{-1}A)\vert)$"></TD> ALT="$4/(3\rho(D^{-1}A))$"></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Damping parameter <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Damping parameter <IMG
WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" WIDTH="16" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img84.png" SRC="img84.png"
ALT="$\omega$"> in the smoothed aggregation algorithm. ALT="$\omega$"> in the smoothed aggregation algorithm.
Must be set by the user if It must be set by the user if
<code>USER_CHOICE</code> was specified for <code>USER_CHOICE</code> was specified for
<code>mld_aggr_omega_alg_</code>, <code>mld_aggr_omega_alg_</code>,
otherwise it is computed by the library.</TD> otherwise it is computed by the library, using the
selected estimate of the spectral radius <IMG
WIDTH="73" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img93.png"
ALT="$\rho(D^{-1}A)$"> of
<IMG
WIDTH="50" HEIGHT="21" ALIGN="BOTTOM" BORDER="0"
SRC="img85.png"
ALT="$D^{-1}A$">.</TD>
</TR> </TR>
</TABLE> </TABLE>
</DIV> </DIV>
@ -374,7 +382,7 @@ Parameters defining the aggregation algorithm.
<P> <P>
<BR><P></P> <BR><P></P>
<DIV ALIGN="CENTER"><A NAME="1257"></A> <DIV ALIGN="CENTER"><A NAME="1258"></A>
<TABLE> <TABLE>
<CAPTION><STRONG>Table 5:</STRONG> <CAPTION><STRONG>Table 5:</STRONG>
Parameters defining the coarse-space correction at the coarsest Parameters defining the coarse-space correction at the coarsest
@ -432,7 +440,7 @@ level.</CAPTION>
<TD ALIGN="LEFT"><code>integer</code></TD> <TD ALIGN="LEFT"><code>integer</code></TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=91>Any&nbsp;int.&nbsp;num.&nbsp;<IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=91>Any&nbsp;int.&nbsp;num.&nbsp;<IMG
WIDTH="31" HEIGHT="31" ALIGN="MIDDLE" BORDER="0" WIDTH="31" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img93.png" SRC="img94.png"
ALT="$&gt; 0$"></TD> ALT="$&gt; 0$"></TD>
<TD ALIGN="LEFT">4</TD> <TD ALIGN="LEFT">4</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Number of Block-Jacobi sweeps when 'BJAC' is used as <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=198>Number of Block-Jacobi sweeps when 'BJAC' is used as

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@ -73,14 +73,14 @@ This routine computes <!-- MATH
--> -->
<IMG <IMG
WIDTH="118" HEIGHT="39" ALIGN="MIDDLE" BORDER="0" WIDTH="118" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img94.png" SRC="img95.png"
ALT="$y = op(M^{-1}) x$">, where <IMG ALT="$y = op(M^{-1}) x$">, where <IMG
WIDTH="23" HEIGHT="15" ALIGN="BOTTOM" BORDER="0" WIDTH="23" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
SRC="img59.png" SRC="img59.png"
ALT="$M$"> is a previously built ALT="$M$"> is a previously built
preconditioner, stored into <code>p</code>, and <IMG preconditioner, stored into <code>p</code>, and <IMG
WIDTH="21" HEIGHT="31" ALIGN="MIDDLE" BORDER="0" WIDTH="21" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img95.png" SRC="img96.png"
ALT="$op$"> ALT="$op$">
denotes the preconditioner itself or its transpose, according to denotes the preconditioner itself or its transpose, according to
the value of <code>trans</code>. the value of <code>trans</code>.
@ -110,7 +110,7 @@ and hence it is completely transparent to the user.
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD> <TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The local part of the vector <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The local part of the vector <IMG
WIDTH="15" HEIGHT="14" ALIGN="BOTTOM" BORDER="0" WIDTH="15" HEIGHT="14" ALIGN="BOTTOM" BORDER="0"
SRC="img96.png" SRC="img97.png"
ALT="$x$">. Note that <I>type</I> and ALT="$x$">. Note that <I>type</I> and
<I>kind_parameter</I> must be chosen according <I>kind_parameter</I> must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use.</TD> to the real/complex, single/double precision version of MLD2P4 under use.</TD>
@ -121,7 +121,7 @@ and hence it is completely transparent to the user.
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD> <TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34>&nbsp;</TD>
<TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The local part of the vector <IMG <TD ALIGN="LEFT" VALIGN="TOP" WIDTH=340>The local part of the vector <IMG
WIDTH="13" HEIGHT="31" ALIGN="MIDDLE" BORDER="0" WIDTH="13" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img97.png" SRC="img98.png"
ALT="$y$">. Note that <I>type</I> and ALT="$y$">. Note that <I>type</I> and
<I>kind_parameter</I> must be chosen according <I>kind_parameter</I> must be chosen according
to the real/complex, single/double precision version of MLD2P4 under use.</TD> to the real/complex, single/double precision version of MLD2P4 under use.</TD>
@ -148,28 +148,28 @@ and hence it is completely transparent to the user.
--> -->
<IMG <IMG
WIDTH="132" HEIGHT="39" ALIGN="MIDDLE" BORDER="0" WIDTH="132" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img98.png" SRC="img99.png"
ALT="$op(M^{-1}) = M^{-1}$">; ALT="$op(M^{-1}) = M^{-1}$">;
if <code>trans</code> = <code>'T','t'</code> then <!-- MATH if <code>trans</code> = <code>'T','t'</code> then <!-- MATH
$op(M^{-1}) = M^{-T}$ $op(M^{-1}) = M^{-T}$
--> -->
<IMG <IMG
WIDTH="135" HEIGHT="40" ALIGN="MIDDLE" BORDER="0" WIDTH="135" HEIGHT="40" ALIGN="MIDDLE" BORDER="0"
SRC="img99.png" SRC="img100.png"
ALT="$op(M^{-1}) = M^{-T}$"> ALT="$op(M^{-1}) = M^{-T}$">
(transpose of <IMG (transpose of <IMG
WIDTH="48" HEIGHT="39" ALIGN="MIDDLE" BORDER="0" WIDTH="48" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img100.png" SRC="img101.png"
ALT="$M^{-1})$">; if <code>trans</code> = <code>'C','c'</code> then <!-- MATH ALT="$M^{-1})$">; if <code>trans</code> = <code>'C','c'</code> then <!-- MATH
$op(M^{-1}) = M^{-C}$ $op(M^{-1}) = M^{-C}$
--> -->
<IMG <IMG
WIDTH="136" HEIGHT="40" ALIGN="MIDDLE" BORDER="0" WIDTH="136" HEIGHT="40" ALIGN="MIDDLE" BORDER="0"
SRC="img101.png" SRC="img102.png"
ALT="$op(M^{-1}) = M^{-C}$"> ALT="$op(M^{-1}) = M^{-C}$">
(conjugate transpose of <IMG (conjugate transpose of <IMG
WIDTH="48" HEIGHT="39" ALIGN="MIDDLE" BORDER="0" WIDTH="48" HEIGHT="39" ALIGN="MIDDLE" BORDER="0"
SRC="img100.png" SRC="img101.png"
ALT="$M^{-1})$">.</TD> ALT="$M^{-1})$">.</TD>
</TR> </TR>
<TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34><code>work</code></TD> <TR><TD ALIGN="LEFT" VALIGN="TOP" WIDTH=34><code>work</code></TD>

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@ -67,8 +67,6 @@ MLD2P4 is available from the web site
</BLOCKQUOTE> </BLOCKQUOTE>
where contact points for further information can be also found. where contact points for further information can be also found.
To report bugs or ask general usage questions, please, send an email to
<TT>bugreport@mld2p4.it</TT>.
<P> <P>
The software is available under a modified BSD license, as specified The software is available under a modified BSD license, as specified

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@ -61,7 +61,7 @@ Bug reporting</A>
If you find any bugs in our codes, please let us know at If you find any bugs in our codes, please let us know at
<a href="mailto:bugreport@mld2p4.it"> <a href="mailto:bugreport@mld2p4.it">
bugreport@mld2p4.it <TT>bugreport@mld2p4.it</TT>
</a> </a>
; be aware that ; be aware that

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@ -226,7 +226,7 @@ If you find any bugs in our codes, please let us know at
\begin{rawhtml} \begin{rawhtml}
<a href="mailto:bugreport@mld2p4.it"> <a href="mailto:bugreport@mld2p4.it">
\end{rawhtml} \end{rawhtml}
bugreport@mld2p4.it \texttt{bugreport@mld2p4.it}
\begin{rawhtml} \begin{rawhtml}
</a> </a>
\end{rawhtml} \end{rawhtml}

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@ -8,9 +8,6 @@ MLD2P4 is available from the web site
\texttt{http://www.mld2p4.it} \texttt{http://www.mld2p4.it}
\end{quotation} \end{quotation}
where contact points for further information can be also found. where contact points for further information can be also found.
To report bugs or ask general usage questions, please, send an email to
\texttt{bugreport@mld2p4.it}.
The software is available under a modified BSD license, as specified The software is available under a modified BSD license, as specified
in Appendix~\ref{sec:license}; please note that some of the optional in Appendix~\ref{sec:license}; please note that some of the optional

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@ -217,7 +217,7 @@ refer to Section~\ref{sec:background}.
\bsideways \bsideways
\begin{center} \begin{center}
\begin{tabular}{|l|l|p{2.3cm}|p{2.6cm}|p{7cm}|} \begin{tabular}{|l|l|p{2.4cm}|p{2.4cm}|p{7cm}|}
\hline \hline
\verb|what| & \textsc{data type} & \verb|val| & \textsc{default} & \verb|what| & \textsc{data type} & \verb|val| & \textsc{default} &
\textsc{comments} \\ \hline \textsc{comments} \\ \hline
@ -235,27 +235,29 @@ refer to Section~\ref{sec:background}.
& 0 & 0
& Threshold $\theta$ in the aggregation algorithm. \\ \hline & Threshold $\theta$ in the aggregation algorithm. \\ \hline
\verb|mld_aggr_omega_alg_| & \verb|character(len=*)| \verb|mld_aggr_omega_alg_| & \verb|character(len=*)|
& \texttt{'USER\_CHOICE'} \hspace{2.5cm} \texttt{'EIG\_EST'} & \texttt{'EIG\_EST'} \hspace{2.5cm} \texttt{'USER\_CHOICE'}
& \texttt{'EIG\_EST'} & \texttt{'EIG\_EST'}
& How the damping parameter $\omega$ in the & How the damping parameter $\omega$ in the
smoothed aggregation should be computed: smoothed aggregation should be computed:
either via an estimate of the eigenvalue either via an estimate of the spectral radius of
$D^{-1}A$ with largest modulus, or explicily $D^{-1}A$, or explicily
specified by the user. \\ \hline specified by the user. \\ \hline
\verb|mld_aggr_eig_| & \verb|character(len=*)| \verb|mld_aggr_eig_| & \verb|character(len=*)|
& \texttt{'A\_NORMI'} & \texttt{'A\_NORMI'}
& \texttt{'A\_NORMI'} & \texttt{'A\_NORMI'}
& How to estimate the eigenvalue $D^{-1}A$ with largest modulus. & How to estimate the spectral radius of $D^{-1}A$.
Currently only the infinity norm estimate Currently only the infinity norm estimate
is available. \\ \hline is available. \\ \hline
\verb|mld_aggr_damp_| & \verb|real(|\emph{kind\_parameter}\verb|)| \verb|mld_aggr_damp_| & \verb|real(|\emph{kind\_parameter}\verb|)|
& Any~nonnegative~real~num. & Any~nonnegative~real~num.
& $4/(3|\lambda_{max}(D^{-1}A)|)$ & $4/(3\rho(D^{-1}A))$
& Damping parameter $\omega$ in the smoothed aggregation algorithm. & Damping parameter $\omega$ in the smoothed aggregation algorithm.
Must be set by the user if It must be set by the user if
\verb|USER_CHOICE| was specified for \verb|USER_CHOICE| was specified for
\verb|mld_aggr_omega_alg_|, \verb|mld_aggr_omega_alg_|,
otherwise it is computed by the library.\\ otherwise it is computed by the library, using the
selected estimate of the spectral radius $\rho(D^{-1}A)$ of
$D^{-1}A$.\\
\hline \hline
\end{tabular} \end{tabular}
\end{center} \end{center}

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mlprec/mld_prec_type.f90
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@ -819,6 +819,7 @@ contains
end subroutine mld_ml_alg_descr end subroutine mld_ml_alg_descr
subroutine mld_ml_level_descr(iout,ilev,iprcparm,nlaggr, info,rprcparm,dprcparm) subroutine mld_ml_level_descr(iout,ilev,iprcparm,nlaggr, info,rprcparm,dprcparm)
implicit none
integer, intent(in) :: iprcparm(:),iout,ilev integer, intent(in) :: iprcparm(:),iout,ilev
integer, intent(in), allocatable :: nlaggr(:) integer, intent(in), allocatable :: nlaggr(:)
integer, intent(out) :: info integer, intent(out) :: info

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