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33 lines
1.0 KiB
TeX
33 lines
1.0 KiB
TeX
17 years ago
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\section{Introduction}\label{sec:intro}
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The MLD2P4 library provides ....
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\subsection{Programming model}
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The MLD2P4 librarary is based on the Single Program Multiple Data
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(SPMD) programming model: each process participating in the
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computation performs the same actions on a chunk of data. Parallelism
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is thus data-driven.
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Because of this structure, many subroutines coordinate their action
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across the various processes, thus providing an implicit
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synchronization point, and therefore \emph{must} be
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called simultaneously by all processes participating in the
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computation.
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However there are many cases where no synchronization, and indeed no
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communication among processes, is implied.
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Throughout this user's guide each subroutine will be clearly indicated
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as:
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\begin{description}
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\item[Synchronous:] must be called simultaneously by all the
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processes in the relevant communication context;
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\item[Asynchronous:] may be called in a totally independent manner.
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\end{description}
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%%% Local Variables:
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%%% mode: latex
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%%% TeX-master: "userguide"
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%%% End:
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