fdurastante/amg4psblas
1
0
Fork 0
mirror of https://github.com/sfilippone/amg4psblas.git synced 2026-10-06 22:55:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

mld2p4-2:

Browse Source 
docs/html/img100.png
 docs/html/img101.png
 docs/html/img102.png
 docs/html/img103.png
 docs/html/img104.png
 docs/html/img105.png
 docs/html/img92.png
 docs/html/img93.png
 docs/html/img95.png
 docs/html/img96.png
 docs/html/img97.png
 docs/html/img98.png
 docs/html/img99.png
 docs/html/index.html
 docs/html/node1.html
 docs/html/node10.html
 docs/html/node11.html
 docs/html/node12.html
 docs/html/node13.html
 docs/html/node14.html
 docs/html/node15.html
 docs/html/node16.html
 docs/html/node17.html
 docs/html/node18.html
 docs/html/node19.html
 docs/html/node2.html
 docs/html/node20.html
 docs/html/node21.html
 docs/html/node22.html
 docs/html/node23.html
 docs/html/node24.html
 docs/html/node25.html
 docs/html/node26.html
 docs/html/node3.html
 docs/html/node4.html
 docs/html/node5.html
 docs/html/node6.html
 docs/html/node7.html
 docs/html/node8.html
 docs/html/node9.html
 docs/html/userhtml.html
 docs/mld2p4-2.1-guide.pdf

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
Download Patch File Download Diff File Expand all files Collapse all files
docs/html/node15.html
+68 -32
View File
@@ -1,4 +1,4 @@
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<!--Converted with LaTeX2HTML 2012 (1.2)
original version by: Nikos Drakos, CBLU, University of Leeds
@@ -24,31 +24,30 @@ original version by: Nikos Drakos, CBLU, University of Leeds
</HEAD>
<BODY >
<DIV CLASS="navigation"><!--Navigation Panel-->
<A NAME="tex2html242"
<!--Navigation Panel-->
<A NAME="tex2html243"
HREF="node16.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html238"
<A NAME="tex2html239"
HREF="node14.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html234"
<A NAME="tex2html235"
HREF="node14.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html240"
<A NAME="tex2html241"
HREF="node2.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html243"
<B> Next:</B> <A NAME="tex2html244"
HREF="node16.html">User Interface</A>
<B> Up:</B> <A NAME="tex2html239"
<B> Up:</B> <A NAME="tex2html240"
HREF="node14.html">Getting Started</A>
<B> Previous:</B> <A NAME="tex2html235"
<B> Previous:</B> <A NAME="tex2html236"
HREF="node14.html">Getting Started</A>
&nbsp; <B> <A NAME="tex2html241"
&nbsp; <B> <A NAME="tex2html242"
HREF="node2.html">Contents</A></B>
<BR>
<BR></DIV>
<BR>
<!--End of Navigation Panel-->
<H2><A NAME="SECTION00071000000000000000"></A><A NAME="sec:examples"></A>
@@ -76,7 +75,7 @@ in the directory <code>examples/fileread</code> of the MLD2P4 tree (see
Section&nbsp;<A HREF="node10.html#sec:ex_and_test">3.5</A>).
For details on the use of the PSBLAS routines, see the PSBLAS User's
Guide [<A
HREF="node25.html#PSBLASGUIDE">15</A>].
HREF="node25.html#PSBLASGUIDE">16</A>].
<P>
The setup and application of the default multi-level
@@ -87,7 +86,7 @@ the corresponding Fortran 95 codes are available in <code>examples/fileread/</co
<P>
<DIV ALIGN="CENTER"><A NAME="fig:ex_default"></A><A NAME="930"></A>
<DIV ALIGN="CENTER"><A NAME="fig:ex_default"></A><A NAME="946"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 2:</STRONG>
Setup and application of the default multi-level Schwarz preconditioner.
@@ -164,6 +163,10 @@ preconditioner, which uses block Jacobi with ILU(0) on the
local blocks as post-smoother, has a coarsest matrix replicated on the processors,
and solves the coarsest-level system with the LU factorization from UMFPACK&nbsp;[<A
HREF="node25.html#UMFPACK">9</A>].
Figure&nbsp;<A HREF="#fig:ex_3lhm">4</A> shows how to set a three-level preconditioner similar to the one of&nbsp;<A HREF="#fig:ex_3lh">3</A>, but the coarsest-level systems is solved with the multifrontal factorization from MUMPS&nbsp;[<A
HREF="node25.html#UMFPACK">9</A>].
Note that MUMPS can be used on both replicated and distributed coarsest level matrices,
as a global and local solver respectively.
The number of levels is specified by using <code>mld_precinit</code>; the other
preconditioner parameters are set by calling <code>mld_precset</code>. Note that
the type of multilevel framework (i.e. multiplicative among the levels
@@ -171,7 +174,7 @@ with post-smoothing only) is not specified since it is the default
set by <code>mld_precinit</code>.
<P>
Figure&nbsp;<A HREF="#fig:ex_3la">4</A> shows how to
Figure&nbsp;<A HREF="#fig:ex_3la">5</A> shows how to
set a three-level additive Schwarz preconditioner,
which uses RAS, with overlap 1 and ILU(0) on the blocks,
as pre- and post-smoother, and applies five block-Jacobi sweeps, with
@@ -180,11 +183,11 @@ solver. Again, <code>mld_precset</code> is used only to set
non-default values of the parameters (see Tables&nbsp;<A HREF="#tab:p_type">2</A>-<A HREF="#tab:p_coarse">5</A>).
In both cases, the construction and the application of the preconditioner
are carried out as for the default multi-level preconditioner.
The code fragments shown in in Figures&nbsp;<A HREF="#fig:ex_3lh">3</A>-<A HREF="#fig:ex_3la">4</A> are
The code fragments shown in in Figures&nbsp;<A HREF="#fig:ex_3lh">3</A>&nbsp;<A HREF="#fig:ex_3lhm">4</A>-<A HREF="#fig:ex_3la">5</A> are
included in the example program file <code>mld_dexample_ml.f90</code> too.
<P>
Finally, Figure&nbsp;<A HREF="#fig:ex_1l">5</A> shows the setup of a one-level
Finally, Figure&nbsp;<A HREF="#fig:ex_1l">6</A> shows the setup of a one-level
additive Schwarz preconditioner, i.e. RAS with overlap 2. The corresponding
example program is available in <code>mld_dexample_</code> <code>1lev.f90</code>.
@@ -195,7 +198,7 @@ boundary conditions are also available in the directory <code>examples/pdegen</c
<P>
<DIV ALIGN="CENTER"><A NAME="fig:ex_3lh"></A><A NAME="932"></A>
<DIV ALIGN="CENTER"><A NAME="fig:ex_3lh"></A><A NAME="948"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 3:</STRONG>
Setup of a hybrid three-level Schwarz preconditioner.</CAPTION>
@@ -228,9 +231,43 @@ Setup of a hybrid three-level Schwarz preconditioner.</CAPTION>
<P>
<DIV ALIGN="CENTER"><A NAME="fig:ex_3la"></A><A NAME="934"></A>
<DIV ALIGN="CENTER"><A NAME="fig:ex_3lhm"></A><A NAME="950"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 4:</STRONG>
Setup of a hybrid three-level Schwarz preconditioner.</CAPTION>
<TR><TD>
<DIV ALIGN="CENTER">
</DIV><TABLE WIDTH="90%">
<TR><TD>
<PRE>
... ...
! set a three-level hybrid Schwarz preconditioner, which uses
! block Jacobi (with ILU(0) on the blocks) as post-smoother,
! a coarsest matrix replicated on the processors, and the
! multifrontal solver in MUMPS as coarse-level solver
call mld_precinit(P,'ML',info,nlev=3)
call mld_precset(P,mld_smoother_type_,'BJAC',info)
call mld_precset(P,mld_coarse_mat_,'REPL',info)
call mld_precset(P,mld_coarse_solve_,'MUMPS',info)
... ...
</PRE>
</TD></TR>
</TABLE>
<DIV ALIGN="CENTER">
</DIV>
<P>
<DIV ALIGN="CENTER">
</DIV></TD></TR>
</TABLE>
</DIV>
<P>
<DIV ALIGN="CENTER"><A NAME="fig:ex_3la"></A><A NAME="952"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 5:</STRONG>
Setup of an additive three-level Schwarz preconditioner.</CAPTION>
<TR><TD>
<DIV ALIGN="CENTER">
@@ -260,9 +297,9 @@ Setup of an additive three-level Schwarz preconditioner.</CAPTION>
<P>
<DIV ALIGN="CENTER"><A NAME="fig:ex_1l"></A><A NAME="936"></A>
<DIV ALIGN="CENTER"><A NAME="fig:ex_1l"></A><A NAME="954"></A>
<TABLE>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 5:</STRONG>
<CAPTION ALIGN="BOTTOM"><STRONG>Figure 6:</STRONG>
Setup of a one-level Schwarz preconditioner.</CAPTION>
<TR><TD>
<DIV ALIGN="CENTER">
@@ -284,30 +321,29 @@ Setup of a one-level Schwarz preconditioner.</CAPTION>
</DIV>
<P>
<DIV CLASS="navigation"><HR>
<HR>
<!--Navigation Panel-->
<A NAME="tex2html242"
<A NAME="tex2html243"
HREF="node16.html">
<IMG WIDTH="37" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="next" SRC="next.png"></A>
<A NAME="tex2html238"
<A NAME="tex2html239"
HREF="node14.html">
<IMG WIDTH="26" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="up" SRC="up.png"></A>
<A NAME="tex2html234"
<A NAME="tex2html235"
HREF="node14.html">
<IMG WIDTH="63" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="previous" SRC="prev.png"></A>
<A NAME="tex2html240"
<A NAME="tex2html241"
HREF="node2.html">
<IMG WIDTH="65" HEIGHT="24" ALIGN="BOTTOM" BORDER="0" ALT="contents" SRC="contents.png"></A>
<BR>
<B> Next:</B> <A NAME="tex2html243"
<B> Next:</B> <A NAME="tex2html244"
HREF="node16.html">User Interface</A>
<B> Up:</B> <A NAME="tex2html239"
<B> Up:</B> <A NAME="tex2html240"
HREF="node14.html">Getting Started</A>
<B> Previous:</B> <A NAME="tex2html235"
<B> Previous:</B> <A NAME="tex2html236"
HREF="node14.html">Getting Started</A>
&nbsp; <B> <A NAME="tex2html241"
HREF="node2.html">Contents</A></B> </DIV>
&nbsp; <B> <A NAME="tex2html242"
HREF="node2.html">Contents</A></B>
<!--End of Navigation Panel-->
</BODY>