88 строки
3.6 KiB
TeX
88 строки
3.6 KiB
TeX
% -*- latex -*-
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% Copyright (c) 2004-2005 The Trustees of Indiana University.
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% Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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% All rights reserved.
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% Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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% University of Stuttgart. All rights reserved.
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% Copyright (c) 2004-2005 The Regents of the University of California.
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% All rights reserved.
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% $COPYRIGHT$
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% Additional copyrights may follow
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% $HEADER$
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\chapter{Don't Panic! (Who Should Read This Document?)}
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{\Huge JMS needs overhauling -- no such thing as a previous OMPI user}
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This document probably looks huge to new users. But don't panic! It
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is divided up into multiple, relatively independent sections that can
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be read and digested separately. Although this manual covers a lot of
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relevant material for all users, the following guidelines are
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suggested for various types of users. If you are:
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\begin{itemize}
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\item {\bf New to MPI}: First, read Chapter~\ref{sec:introduction} for
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an introduction to MPI and Open MPI. A good reference on MPI
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programming is also strongly recommended; there are several books
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available as well as excellent on-line tutorials
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(e.g.,~\cite{gropp98:_mpi2,gropp94:_using_mpi,gropp99:_using_mpi_2,snir96:_mpi_the_compl_refer}).
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When you're comfortable with the concepts of MPI, move on to {\bf
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New to Open MPI}.
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\vspace{-3pt}
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\item {\bf New to Open MPI}: If you're familiar with MPI but unfamiliar
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with Open MPI, first read Chapter~\ref{sec:getting-started} for a
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mini-tutorial on getting started with Open MPI. You'll probably be
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familiar with many of the concepts described, and simply learn the
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Open MPI terminology and commands. Glance over and use as a reference
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Chapter~\ref{sec:commands} for the rest of the Open MPI commands.
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Chapter~\ref{sec:troubleshooting} contains some quick tips on common
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problems with Open MPI.
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Assuming that you've already got MPI codes that you want to run
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under LAM/MPI, read Chapter~\ref{sec:mpi-functionality} to see
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exactly what MPI-2 features LAM/MPI supports.
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When you're comfortable with all this, move on to {\bf Previous Open
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MPI user}.
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\vspace{-3pt}
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\item {\bf Previous Open MPI user}: As a previous Open MPI user,
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you're probably already fairly familiar with all the Open MPI
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commands -- their basic functionality hasn't changed much. However,
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many of them have grown new options and capabilities, particularly
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in the area of run-time tunable parameters. So be sure to read
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Chapters~\ref{sec:ssi} to learn about Open MPI's Modular Component
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Architecture (MCA), Chapters~\ref{sec:mca-orte}
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and~\ref{sec:mca-ompi} (run-time environment and MPI MCA modules),
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and finally Chapter~\ref{sec:misc} (miscellaneous Open MPI
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information, features, etc.).
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If you're curious to see a brief listing of new features in this
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release, see the release notes in Chapter~\ref{sec:release-notes}.
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This isn't really necessary, but when you're kicking the tires of
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this version, it's a good way to ensure that you are aware of all
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the new features.
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Finally, even for the seasoned MPI and Open MPI veteran, be sure to
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check out Chapter~\ref{sec:debug} for information about debugging
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MPI programs in parallel.
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\vspace{-3pt}
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\item {\bf System administrator}: Unless you're also a parallel
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programmer, you're reading the wrong document. You should be
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reading the Open MPI Installation
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Guide~\cite{open_mpi_install_guide} for detailed
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information on how to configure, compile, and install Open MPI.
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\end{itemize}
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