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<H1><A NAME="SECTION041110000000000000000">Related Projects</A></H1>
<P>
As mentioned in the Preface, the ScaLAPACK library discussed
in this Users' Guide is only one facet of the ScaLAPACK project. A
variety of other software is also available in the <EM>scalapack</EM> directory
on <EM>netlib</EM>.
<BLOCKQUOTE> <TT>http://www.netlib.org/scalapack/index.html</TT>
</BLOCKQUOTE>
<P>
P_ARPACK (Parallel ARPACK)<A NAME="612"> </A> is an extension of the ARPACK<A NAME="613"> </A>
software
package used for solving large-scale eigenvalue problems<A NAME="614"> </A><A NAME="615"> </A> on distributed-memory
parallel architectures. The message-passing layers currently supported
are BLACS and MPI. Serial ARPACK must be retrieved and installed prior to
installing P_ARPACK. All core ARPACK routines are available in single-precision real, double-precision real, single-precision complex, and
double-precision complex. An extensive set of driver
routines is available for ARPACK, and a subset of these is available
for parallel computation with P_ARPACK. These may be used as templates
that are easily modified to construct a problem specific parallel interface to
P_ARPACK.
<P>
CAPSS<A NAME="622"> </A> is a fully parallel package to solve a sparse linear system of
the form <I>Ax</I>=<I>b</I> on a message passing multiprocessor; the matrix <I>A</I> is assumed to
be symmetric positive definite and associated with a mesh in two or three
dimensions. This version has been tested on the Intel Paragon and makes
possible efficient parallel solution for several right-hand-side vectors.
<P>
ParPre<A NAME="623"> </A> is a package of parallel preconditioners for general sparse
matrices. It includes classical point/block relaxation methods,
generalized block SSOR preconditioners (this includes ILU), and domain
decomposition methods (additive and multiplicative Schwarz, Schur
complement). The communication protocol is
MPI, and low-level routines from the PETSc [<A HREF="node189.html#ugpetsc">109</A>]<A NAME="625"> </A>
library are used, but installing the complete PETSc library is not necessary.
<P>
Prototype codes are provided
for out-of-core<A NAME="626"> </A><A NAME="627"> </A>
solvers [<A HREF="node189.html#lawn118">55</A>] for LU, Cholesky,
and QR, the matrix sign function for eigenproblems [<A HREF="node189.html#baidemmel92a">14</A>, <A HREF="node189.html#lawn91">13</A>, <A HREF="node189.html#baidemmel97">12</A>]<A NAME="630"> </A><A NAME="631"> </A>,
an HPF interface<A NAME="632"> </A><A NAME="633"> </A>
to a subset of ScaLAPACK routines, and
SuperLU [<A HREF="node189.html#xiaoyelithesis">96</A>, <A HREF="node189.html#demmeleisenstatgilbertliliu">39</A>, <A HREF="node189.html#shm_superlu97">41</A>]<A NAME="635"> </A><A NAME="636"> </A>.
<BLOCKQUOTE> <TT>http://www.netlib.org/scalapack/prototype/</TT>
</BLOCKQUOTE>
These software contributions are
classified as <EM>prototype codes</EM><A NAME="641"> </A> because they
are still under
development and their calling sequences may change. They have been
tested only on a limited number of architectures and have not been
rigorously tested on all of the architectures to which the ScaLAPACK
library is portable.
<P>
Refer to Appendix <A HREF="node181.html#hpfexample">C.2</A> for a brief description of the HPF
interface to ScaLAPACK, as well as an example program.
<P>
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<P><ADDRESS>
<I>Susan Blackford <BR>
Tue May 13 09:21:01 EDT 1997</I>
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