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Changes to docs to highlight new stuff in MLD internals.

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Salvatore Filippone
2018-01-16 12:26:54 +00:00
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<!--Converted with LaTeX2HTML 2012 (1.2)
original version by: Nikos Drakos, CBLU, University of Leeds
* revised and updated by: Marcus Hennecke, Ross Moore, Herb Swan
* with significant contributions from:
Jens Lippmann, Marek Rouchal, Martin Wilck and others -->
<!--Converted with LaTeX2HTML 2017.2 (Released Jan 23, 2017) -->
<HTML>
<HEAD>
<TITLE>Abstract</TITLE>
@@ -13,7 +9,7 @@ original version by: Nikos Drakos, CBLU, University of Leeds
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<H1><A NAME="SECTION00010000000000000000">
Abstract</A>
</H1><FONT SIZE="+1"><FONT SIZE="+1"><FONT SIZE="+1">
</H1><BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE">
MLD2P4 (M<SMALL>ULTI</SMALL>L<SMALL>EVEL </SMALL>D<SMALL>OMAIN </SMALL>D<SMALL>ECOMPOSITION </SMALL>P<SMALL>ARALLEL </SMALL>P<SMALL>RECONDITIONERS </SMALL>P<SMALL>ACKAGE
BASED ON </SMALL>PSBLAS) is a package of parallel algebraic multilevel preconditioners.
@@ -64,55 +61,56 @@ multigrid methods. In the multilevel case, a purely algebraic approach is applie
generate coarse-level corrections, so that no geometric background is needed
concerning the matrix to be preconditioned. The matrix is assumed to be square,
real or complex.
</FONT></FONT></FONT>
</BIG></BIG></BIG>
<P>
<FONT SIZE="+1"><FONT SIZE="+1"><FONT SIZE="+1">MLD2P4 has been designed to provide scalable and easy-to-use preconditioners
<BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE">MLD2P4 has been designed to provide scalable and easy-to-use preconditioners
in the context of the PSBLAS (Parallel Sparse Basic Linear Algebra Subprograms)
computational framework and can be used in conjuction with the Krylov solvers
available in this framework. MLD2P4 enables the user to easily specify different
features of an algebraic multilevel preconditioner, thus allowing to search
for the ``best'' preconditioner for the problem at hand.
</FONT></FONT></FONT>
for the &ldquo;best&rdquo; preconditioner for the problem at hand.
</BIG></BIG></BIG>
<P>
<FONT SIZE="+1"><FONT SIZE="+1"><FONT SIZE="+1">The package employs object-oriented design techniques in
<BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE">The package employs object-oriented design techniques in
Fortran&nbsp;2003, with interfaces to additional third party libraries
such as MUMPS, UMFPACK, SuperLU, and SuperLU_Dist, which
can be exploited in building multilevel preconditioners. The parallel
implementation is based on a Single Program Multiple Data (SPMD)
paradigm; the inter-process communication is based on MPI and
is managed mainly through PSBLAS.
</FONT></FONT></FONT>
</BIG></BIG></BIG>
<P>
<FONT SIZE="+1"><FONT SIZE="+1"><FONT SIZE="+1">This guide provides a brief description of the functionalities and
<BIG CLASS="LARGE"><BIG CLASS="LARGE"><BIG CLASS="LARGE">This guide provides a brief description of the functionalities and
the user interface of MLD2P4.
</FONT></FONT></FONT>
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<P>
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