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mld2p4-2:

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docs/html/node24.html
 docs/html/node28.html
 docs/mld2p4-2.1-guide.pdf
 docs/src/userinterface.tex

Fixes for extending smoothers and solvers.
stopcriterion
Salvatore Filippone 8 years ago
parent 84288ff74d
commit 435babf6f1
4 changed files with 47 additions and 30 deletions
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30
docs/html/node24.html
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@ -59,16 +59,20 @@ Adding new smoothers and solvers to MLD2P4
<P> <P>
Developers can add completely new smoother and/or solver classes Developers can add completely new smoother and/or solver classes
derived from the base objects in the library may be used without derived from the base objects in the library may be used without
recompiling the library itself. To do so it is necessary first to recompiling the library itself.
select the base type to be extended; in our experience, it is quite
likely that the new application needs only require the definition of a <P>
``solver'' object, which is almost always acting only on the local To do so it is necessary first to select the base type to be extended;
part of the distributed matrix. The parallel actions required to in our experience, it is quite likely that the new application needs
connect the various solver objects are most often already provided by only require the definition of a ``solver'' object, which is almost
the Block Jacobi or the Additive Schwarz smoothers. always acting only on the local part of the distributed matrix.
To define a new solver, the developer will then have to define its
components and methods, perhaps taking one of the predefined solvers <P>
as a starting point if possible. The parallel actions required to connect the various solver objects
are most often already provided by the Block Jacobi or the Additive
Schwarz smoothers. To define a new solver, the developer will then
have to define its components and methods, perhaps taking one of the
predefined solvers as a starting point if possible.
<P> <P>
Once the new smoother/solver class has been developed, to use it in Once the new smoother/solver class has been developed, to use it in
@ -101,6 +105,12 @@ it passes it down the composition hierarchy (levels containing
smoothers containing solvers), so that it can be eventually caught by smoothers containing solvers), so that it can be eventually caught by
the new solver. the new solver.
<P>
An example is contained in the source code distribution under the
folder <code>tests/newslv</code>. This example solver is simply the ILU(0)
solver under a new name, but it should give an idea of what needs to
be done.
<P> <P>
<BR> <BR>

2
docs/html/node28.html
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@ -63,7 +63,7 @@ Mathematics Department, Macquarie University, Sydney.
The command line arguments were: <BR> The command line arguments were: <BR>
<STRONG>latex2html</STRONG> <TT>-local_icons -noaddress -dir ../../html userhtml.tex</TT> <STRONG>latex2html</STRONG> <TT>-local_icons -noaddress -dir ../../html userhtml.tex</TT>
<P> <P>
The translation was initiated by Salvatore Filippone on 2017-05-13 The translation was initiated by Salvatore Filippone on 2017-05-16
<BR><HR> <BR><HR>
</BODY> </BODY>

18
docs/mld2p4-2.1-guide.pdf
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docs/src/userinterface.tex
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@ -860,16 +860,18 @@ as follows:
Developers can add completely new smoother and/or solver classes Developers can add completely new smoother and/or solver classes
derived from the base objects in the library may be used without derived from the base objects in the library may be used without
recompiling the library itself. To do so it is necessary first to recompiling the library itself.
select the base type to be extended; in our experience, it is quite
likely that the new application needs only require the definition of a To do so it is necessary first to select the base type to be extended;
``solver'' object, which is almost always acting only on the local in our experience, it is quite likely that the new application needs
part of the distributed matrix. The parallel actions required to only require the definition of a ``solver'' object, which is almost
connect the various solver objects are most often already provided by always acting only on the local part of the distributed matrix.
the Block Jacobi or the Additive Schwarz smoothers.
To define a new solver, the developer will then have to define its The parallel actions required to connect the various solver objects
components and methods, perhaps taking one of the predefined solvers are most often already provided by the Block Jacobi or the Additive
as a starting point if possible. Schwarz smoothers. To define a new solver, the developer will then
have to define its components and methods, perhaps taking one of the
predefined solvers as a starting point if possible.
Once the new smoother/solver class has been developed, to use it in Once the new smoother/solver class has been developed, to use it in
@ -896,6 +898,11 @@ it passes it down the composition hierarchy (levels containing
smoothers containing solvers), so that it can be eventually caught by smoothers containing solvers), so that it can be eventually caught by
the new solver. the new solver.
An example is contained in the source code distribution under the
folder \verb|tests/newslv|. This example solver is simply the ILU(0)
solver under a new name, but it should give an idea of what needs to
be done.
\ \\ \ \\
\begin{tabular}{p{1.2cm}p{12cm}} \begin{tabular}{p{1.2cm}p{12cm}}

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