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<h1>PETSc Users Manual<a class="headerlink" href="#petsc-users-manual" title="Permalink to this headline">ΒΆ</a></h1>
<p><strong>Argonne National Laboratory</strong></p>
<p><strong>Mathematics and Computer Science Division</strong></p>
<hr class="docutils" />
<p>Prepared by</p>
<p><strong>S. Balay</strong> <sup>1</sup>,
<strong>S. Abhyankar</strong> <sup>2</sup>,
<strong>M. Adams</strong> <sup>3</sup>,
<strong>J. Brown</strong> <sup>1</sup>,
<strong>P. Brune</strong> <sup>1</sup>,
<strong>K. Buschelman</strong> <sup>1</sup>,
<strong>L. Dalcin</strong> <sup>4</sup>,
<strong>A. Dener</strong> <sup>1</sup>,
<strong>V. Eijkhout</strong> <sup>6</sup>,
<strong>W.  Gropp</strong> <sup>1</sup>,
<strong>D. Karpeyev</strong> <sup>1</sup>,
<strong>D. Kaushik</strong> <sup>1</sup>,
<strong>M. Knepley</strong> <sup>1</sup>,
<strong>D. May</strong> <sup>7</sup>,
<strong>L.  Curfman McInnes</strong> <sup>1</sup>,
<strong>R. Mills</strong> <sup>1</sup>,
<strong>T. Munson</strong> <sup>1</sup>,
<strong>K. Rupp</strong> <sup>1</sup>,
<strong>P.  Sanan</strong> <sup>8</sup>,
<strong>B. Smith</strong> <sup>1</sup>,
<strong>S. Zampini</strong> <sup>4</sup>,
<strong>H. Zhang</strong> <sup>5</sup>, and
<strong>H. Zhang</strong> <sup>1</sup></p>
<div class="line-block">
<div class="line"><sup>1</sup>Mathematics and Computer Science Division, Argonne National Laboratory</div>
<div class="line"><sup>2</sup>Electricity Infrastructure and Buildings Division, Pacific Northwest National Laboratory</div>
<div class="line"><sup>3</sup>Computational Research, Lawrence Berkeley National Laboratory</div>
<div class="line"><sup>4</sup>Extreme Computing Research Center, King Abdullah University of Science and Technology</div>
<div class="line"><sup>5</sup>Computer Science Department, Illinois Institute of Technology</div>
<div class="line"><sup>6</sup>Texas Advanced Computing Center, University of Texas at Austin</div>
<div class="line"><sup>7</sup>Department of Earth Sciences, University of Oxford</div>
<div class="line"><sup>8</sup>Institute of Geophysics, ETH Zurich</div>
</div>
<hr class="docutils" />
<p>This work was supported by the Office of Advanced Scientific Computing Research,
Office of Science, U.S. Department of Energy, under Contract DE-AC02-06CH11357.</p>
<hr class="docutils" />
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<li class="toctree-l1"><a class="reference internal" href="introduction.html">Introduction to PETSc</a><ul>
<li class="toctree-l2"><a class="reference internal" href="about_this_manual.html">About This Manual</a></li>
<li class="toctree-l2"><a class="reference internal" href="getting_started.html">Getting Started</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="getting_started.html#running-petsc-programs">Running PETSc Programs</a></li>
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<li class="toctree-l1"><a class="reference internal" href="additional.html">Additional Information</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="matlab.html">Using MATLAB with PETSc</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="profiling.html">Profiling</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="profiling.html#interpreting-log-info-output-informative-messages">Interpreting <code class="docutils literal notranslate"><span class="pre">-log_info</span></code> Output: Informative Messages</a></li>
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<li class="toctree-l3"><a class="reference internal" href="profiling.html#accurate-profiling-and-paging-overheads">Accurate Profiling and Paging Overheads</a></li>
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<li class="toctree-l3"><a class="reference internal" href="performance.html#maximizing-memory-bandwidth">Maximizing Memory Bandwidth</a></li>
<li class="toctree-l3"><a class="reference internal" href="performance.html#performance-pitfalls-and-advice">Performance Pitfalls and Advice</a></li>
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<li class="toctree-l2"><a class="reference internal" href="other.html">Other PETSc Features</a><ul>
<li class="toctree-l3"><a class="reference internal" href="other.html#petsc-on-a-process-subset">PETSc on a process subset</a></li>
<li class="toctree-l3"><a class="reference internal" href="other.html#runtime-options">Runtime Options</a></li>
<li class="toctree-l3"><a class="reference internal" href="other.html#viewers-looking-at-petsc-objects">Viewers: Looking at PETSc Objects</a></li>
<li class="toctree-l3"><a class="reference internal" href="other.html#using-saws-with-petsc">Using SAWs with PETSc</a></li>
<li class="toctree-l3"><a class="reference internal" href="other.html#debugging">Debugging</a></li>
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<li class="toctree-l3"><a class="reference internal" href="other.html#parallel-communication">Parallel Communication</a></li>
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<li class="toctree-l2"><a class="reference internal" href="advanced.html">Unimportant and Advanced Features of Matrices and Solvers</a><ul>
<li class="toctree-l3"><a class="reference internal" href="advanced.html#extracting-submatrices">Extracting Submatrices</a></li>
<li class="toctree-l3"><a class="reference internal" href="advanced.html#matrix-factorization">Matrix Factorization</a></li>
<li class="toctree-l3"><a class="reference internal" href="advanced.html#unimportant-details-of-ksp">Unimportant Details of KSP</a></li>
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