<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.5"/> <title>Eigen: PardisoLLT< _MatrixType, Options > Class Template Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/search.js"></script> <script type="text/javascript"> $(document).ready(function() { searchBox.OnSelectItem(0); }); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> <link href="eigendoxy.css" rel="stylesheet" type="text/css"> <!-- --> <script type="text/javascript" src="eigen_navtree_hacks.js"></script> <!-- <script type="text/javascript"> --> <!-- </script> --> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! 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">LLT</a>) factorization and solver based on the PARDISO library. </p> <p>This class allows to solve for A.X = B sparse linear problems via a LL^T Cholesky factorization using the Intel MKL PARDISO library. The sparse matrix A must be selfajoint and positive definite. The vectors or matrices X and B can be either dense or sparse.</p> <dl class="tparams"><dt>Template Parameters</dt><dd> <table class="tparams"> <tr><td class="paramname">MatrixType</td><td>the type of the sparse matrix A, it must be a SparseMatrix<> </td></tr> <tr><td class="paramname">UpLo</td><td>can be any bitwise combination of Upper, Lower. The default is Upper, meaning only the upper triangular part has to be used. Upper|Lower can be used to tell both triangular parts can be used as input.</td></tr> </table> </dd> </dl> <dl class="section see"><dt>See Also</dt><dd><a class="el" href="group__TopicSparseSystems.html#TutorialSparseDirectSolvers">Sparse solvers</a> </dd></dl> </div> <p>Inherits PardisoImpl< Derived >.</p> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a> Public Member Functions</h2></td></tr> <tr class="memitem:ab0129109d9d29e052c0e1d0231a5d79e"><td class="memItemLeft" align="right" valign="top">Derived & </td><td class="memItemRight" valign="bottom"><b>analyzePattern</b> (const MatrixType &matrix)</td></tr> <tr class="separator:ab0129109d9d29e052c0e1d0231a5d79e"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a2d06a3fe40014fc82ab8204578cf2d0b"><td class="memItemLeft" align="right" valign="top">Derived & </td><td class="memItemRight" valign="bottom"><b>factorize</b> (const MatrixType &matrix)</td></tr> <tr class="separator:a2d06a3fe40014fc82ab8204578cf2d0b"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a0c06d5c2034ebb329c54235369643ad2"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__enums.html#ga51bc1ac16f26ebe51eae1abb77bd037b">ComputationInfo</a> </td><td class="memItemRight" valign="bottom"><b>info</b> () const </td></tr> <tr class="memdesc:a0c06d5c2034ebb329c54235369643ad2"><td class="mdescLeft"> </td><td class="mdescRight">Reports whether previous computation was successful. <a href="#a0c06d5c2034ebb329c54235369643ad2">More...</a><br/></td></tr> <tr class="separator:a0c06d5c2034ebb329c54235369643ad2"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a32506fe389dcf91339e0490d296fdf40"><td class="memItemLeft" align="right" valign="top"><a class="el" href="classEigen_1_1Array.html">ParameterType</a> & </td><td class="memItemRight" valign="bottom"><b>pardisoParameterArray</b> ()</td></tr> <tr class="separator:a32506fe389dcf91339e0490d296fdf40"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a3d48fafcd8aaed4329a332479388308a"><td class="memTemplParams" colspan="2">template<typename Rhs > </td></tr> <tr class="memitem:a3d48fafcd8aaed4329a332479388308a"><td class="memTemplItemLeft" align="right" valign="top">const internal::solve_retval<br class="typebreak"/> < PardisoImpl, Rhs > </td><td class="memTemplItemRight" valign="bottom"><b>solve</b> (const <a class="el" href="classEigen_1_1MatrixBase.html">MatrixBase</a>< Rhs > &b) const </td></tr> <tr class="separator:a3d48fafcd8aaed4329a332479388308a"><td class="memSeparator" colspan="2"> </td></tr> <tr class="memitem:a8e4d2360a5ca6b8dd225fe45a55b89f5"><td class="memTemplParams" colspan="2">template<typename Rhs > </td></tr> <tr class="memitem:a8e4d2360a5ca6b8dd225fe45a55b89f5"><td class="memTemplItemLeft" align="right" valign="top">const <br class="typebreak"/> internal::sparse_solve_retval<br class="typebreak"/> < PardisoImpl, Rhs > </td><td class="memTemplItemRight" valign="bottom"><b>solve</b> (const <a class="el" href="classEigen_1_1SparseMatrixBase.html">SparseMatrixBase</a>< Rhs > &b) const </td></tr> <tr class="separator:a8e4d2360a5ca6b8dd225fe45a55b89f5"><td class="memSeparator" colspan="2"> </td></tr> </table> <h2 class="groupheader">Member Function Documentation</h2> <a class="anchor" id="ab0129109d9d29e052c0e1d0231a5d79e"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">Derived & analyzePattern </td> <td>(</td> <td class="paramtype">const MatrixType & </td> <td class="paramname"><em>matrix</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Performs a symbolic decomposition on the sparcity of <em>matrix</em>.</p> <p>This function is particularly useful when solving for several problems having the same structure.</p> <dl class="section see"><dt>See Also</dt><dd>factorize() </dd></dl> </div> </div> <a class="anchor" id="a2d06a3fe40014fc82ab8204578cf2d0b"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">Derived & factorize </td> <td>(</td> <td class="paramtype">const MatrixType & </td> <td class="paramname"><em>matrix</em></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Performs a numeric decomposition of <em>matrix</em> </p> <p>The given matrix must has the same sparcity than the matrix on which the symbolic decomposition has been performed.</p> <dl class="section see"><dt>See Also</dt><dd>analyzePattern() </dd></dl> </div> </div> <a class="anchor" id="a0c06d5c2034ebb329c54235369643ad2"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="group__enums.html#ga51bc1ac16f26ebe51eae1abb77bd037b">ComputationInfo</a> info </td> <td>(</td> <td class="paramname"></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>Reports whether previous computation was successful. </p> <dl class="section return"><dt>Returns</dt><dd><code>Success</code> if computation was succesful, <code>NumericalIssue</code> if the matrix appears to be negative. </dd></dl> </div> </div> <a class="anchor" id="a32506fe389dcf91339e0490d296fdf40"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classEigen_1_1Array.html">ParameterType</a>& pardisoParameterArray </td> <td>(</td> <td class="paramname"></td><td>)</td> <td></td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <dl class="section warning"><dt>Warning</dt><dd>for advanced usage only. </dd></dl> <dl class="section return"><dt>Returns</dt><dd>a reference to the parameter array controlling PARDISO. See the PARDISO manual to know how to use it. </dd></dl> </div> </div> <a class="anchor" id="a3d48fafcd8aaed4329a332479388308a"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">const internal::solve_retval<PardisoImpl, Rhs> solve </td> <td>(</td> <td class="paramtype">const <a class="el" href="classEigen_1_1MatrixBase.html">MatrixBase</a>< Rhs > & </td> <td class="paramname"><em>b</em></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <dl class="section return"><dt>Returns</dt><dd>the solution x of <img class="formulaInl" alt="$ A x = b $" src="form_3.png"/> using the current decomposition of A.</dd></dl> <dl class="section see"><dt>See Also</dt><dd>compute() </dd></dl> </div> </div> <a class="anchor" id="a8e4d2360a5ca6b8dd225fe45a55b89f5"></a> <div class="memitem"> <div class="memproto"> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">const internal::sparse_solve_retval<PardisoImpl, Rhs> solve </td> <td>(</td> <td class="paramtype">const <a class="el" href="classEigen_1_1SparseMatrixBase.html">SparseMatrixBase</a>< Rhs > & </td> <td class="paramname"><em>b</em></td><td>)</td> <td> const</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">inherited</span></span> </td> </tr> </table> </div><div class="memdoc"> <dl class="section return"><dt>Returns</dt><dd>the solution x of <img class="formulaInl" alt="$ A x = b $" src="form_3.png"/> using the current decomposition of A.</dd></dl> <dl class="section see"><dt>See Also</dt><dd>compute() </dd></dl> </div> </div> <hr/>The documentation for this class was generated from the following file:<ul> <li><a class="el" href="PardisoSupport_8h_source.html">PardisoSupport.h</a></li> </ul> </div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="namespaceEigen.html">Eigen</a></li><li class="navelem"><a class="el" href="classEigen_1_1PardisoLLT.html">PardisoLLT</a></li> <li class="footer">Generated on Mon Oct 28 2013 11:04:30 for Eigen by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.5 </li> </ul> </div> <!-- Piwik --> <!-- <script type="text/javascript"> var pkBaseURL = (("https:" == document.location.protocol) ? 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