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Added aggregation ordering option to docs.
This commit is contained in:
Salvatore Filippone
2016-05-09 16:04:33 +00:00
parent 875443efe7
commit c592733a8e
42 changed files with 2745 additions and 2539 deletions
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docs/html/node12.html
+23 -23
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@@ -26,26 +26,26 @@ original version by: Nikos Drakos, CBLU, University of Leeds
<BODY >
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<B> Up:</B> <A NAME="tex2html207"
HREF="node11.html">Multi-level Domain Decomposition Background</A>
<B> Previous:</B> <A NAME="tex2html200"
<B> Previous:</B> <A NAME="tex2html201"
HREF="node11.html">Multi-level Domain Decomposition Background</A>
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HREF="node2.html">Contents</A></B>
<BR>
<BR>
@@ -295,7 +295,7 @@ ILU(<IMG
WIDTH="27" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img36.png"
ALT="$p,t$">) [<A
HREF="node25.html#Saad_book">21</A>, Chapter 10].
HREF="node25.html#Saad_book">22</A>, Chapter 10].
<P>
A variant of the classical AS preconditioner that outperforms it
@@ -303,7 +303,7 @@ in terms of convergence rate and of computation and communication
time on parallel distributed-memory computers is the so-called <I>Restricted AS
(RAS)</I> preconditioner&nbsp;[<A
HREF="node25.html#CAI_SARKIS">5</A>,<A
HREF="node25.html#EFSTATHIOU">14</A>]. It
HREF="node25.html#EFSTATHIOU">15</A>]. It
is obtained by zeroing the components of <IMG
WIDTH="22" HEIGHT="31" ALIGN="MIDDLE" BORDER="0"
SRC="img33.png"
@@ -387,7 +387,7 @@ of <IMG
SRC="img11.png"
ALT="$W$"> increases [<A
HREF="node25.html#dd1_94">7</A>,<A
HREF="node25.html#dd2_96">22</A>]. To reduce the dependency
HREF="node25.html#dd2_96">23</A>]. To reduce the dependency
of the number of iterations on the degree of parallelism we may
introduce a global coupling among the overlapping partitions by defining
a coarse-space approximation <IMG
@@ -642,12 +642,12 @@ in which the coarse-level correction is re-applied starting from the current
coarse-level system. The corresponding preconditioners, called <I>multi-level</I>
preconditioners, can significantly reduce the computational cost of preconditioning
with respect to the two-level case (see [<A
HREF="node25.html#dd2_96">22</A>, Chapter 3]).
HREF="node25.html#dd2_96">23</A>, Chapter 3]).
Additive and hybrid multilevel preconditioners
are obtained as direct extensions of the two-level counterparts.
For a detailed descrition of them, the reader is
referred to [<A
HREF="node25.html#dd2_96">22</A>, Chapter 3].
HREF="node25.html#dd2_96">23</A>, Chapter 3].
The algorithm for the application of a multi-level hybrid
post-smoothed preconditioner <IMG
WIDTH="23" HEIGHT="15" ALIGN="BOTTOM" BORDER="0"
@@ -685,7 +685,7 @@ denoted by <IMG
SRC="img67.png"
ALT="$R_l$">.
<DIV ALIGN="CENTER"><A NAME="fig:mlhpost_alg"></A><A NAME="509"></A>
<DIV ALIGN="CENTER"><A NAME="fig:mlhpost_alg"></A><A NAME="514"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 1:</STRONG>
Application of the multi-level hybrid post-smoothed preconditioner.</CAPTION>
@@ -726,7 +726,7 @@ $w = y_1$;
\begin{tabbing}
\quad \=\quad...
...= y_l+r_l$\\
\textbf{endfor} [1mm]
\textbf{endfor} \\ [1mm]
$w = y_1$;
\end{tabbing}}
\end{minipage}}">
@@ -738,26 +738,26 @@ $w = y_1$;
<P>
<HR>
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