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91 lines
4.3 KiB
91 lines
4.3 KiB
<!-------- @HEADER
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!
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!
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! Zoltan Toolkit for Load-balancing, Partitioning, Ordering and Coloring
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! Copyright 2012 Sandia Corporation
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!
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! Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
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! the U.S. Government retains certain rights in this software.
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!
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! Redistribution and use in source and binary forms, with or without
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! modification, are permitted provided that the following conditions are
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! met:
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!
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! 1. Redistributions of source code must retain the above copyright
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! notice, this list of conditions and the following disclaimer.
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!
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! 2. Redistributions in binary form must reproduce the above copyright
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! notice, this list of conditions and the following disclaimer in the
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! documentation and/or other materials provided with the distribution.
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!
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! 3. Neither the name of the Corporation nor the names of the
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! contributors may be used to endorse or promote products derived from
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! this software without specific prior written permission.
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!
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! THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
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! EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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! IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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! PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
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! CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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! EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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! PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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! PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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! LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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! NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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! SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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!
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! Questions? Contact Karen Devine kddevin@sandia.gov
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! Erik Boman egboman@sandia.gov
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!
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! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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!
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! @HEADER
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------->
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<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta name="GENERATOR" content="Mozilla/4.7 [en] (X11; U; SunOS 5.7 sun4u) [Netscape]">
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<meta name="sandia.approved" content="SAND99-1376">
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<meta name="author" content="karen devine, kddevin@sandia.gov">
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<title> Zoltan Developer's Guide: Philosophy</title>
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</head>
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<body bgcolor="#FFFFFF">
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<div align=right><b><i><a href="dev.html">Zoltan Developer's Guide</a>
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| <a href="dev_intro_coding.html">Next</a> | <a href="dev_intro.html">Previous</a></i></b></div>
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<h2>
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<a NAME="philosophy"></a>Philosophy of Zoltan</h2>
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The Zoltan library is designed to be a general-purpose tool-kit
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providing a variety of parallel data management services to a wide range
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of scientific applications (see the <a href="../ug_html/ug.html">Zoltan
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User's Guide</a>). To enable general use of the library, the library does
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not directly access the data structures of an application. Instead, the
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library obtains information it needs through
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an object-oriented interface between Zoltan and the
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application.
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This interface uses call-back query functions to gather information. An
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application developer must write and register these query functions before
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using Zoltan. The intent, however, is that the number
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and complexity of these query functions are low, allowing applications
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to easily interface with the library. In addition, new algorithm
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development would use the same query functions as previous algorithms,
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enabling applications to use new algorithms without changes to the query
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functions.
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<p>In developing new algorithms for Zoltan, the developer
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must write the code that calls the query functions to build the needed
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data structures for the algorithm. However, the application need not change
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its query functions. Thus, new algorithms can be added to the library and
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used by an application with minimal effort on the part of the application
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developer.
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<p>
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<hr WIDTH="100%">
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<br>[<a href="dev.html">Table of Contents</a> | <a href="dev_intro_coding.html">Next:
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Coding Principles</a> | <a href="dev_intro.html">Previous:
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Introduction</a> | <a href="https://www.sandia.gov/general/privacy-security/index.html">Privacy and Security</a>]
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</body>
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</html>
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