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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>SuperLU: SRC/ssp_blas2.c File Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Data Structures</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>Globals</span></a></li> </ul></div><h1>SRC/ssp_blas2.c File Reference</h1>Sparse BLAS 2, using some dense BLAS 2 operations. <a href="#_details">More...</a><p><code>#include "<a class="el" href="slu__sdefs_8h-source.html">slu_sdefs.h</a>"</code><br><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="ssp__blas2_8c.html#25ea48f4f948c68a423f5bd3929e3c1f">susolve</a> (int, int, float *, float *)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Solves a dense upper triangular system. <a href="#25ea48f4f948c68a423f5bd3929e3c1f"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="ssp__blas2_8c.html#a8bbeb2abbd5a10ac13fa9b48504691c">slsolve</a> (int, int, float *, float *)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Solves a dense UNIT lower triangular system. <a href="#a8bbeb2abbd5a10ac13fa9b48504691c"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="ssp__blas2_8c.html#b452e957171a4d0d9cfe6abb3d8a950c">smatvec</a> (int, int, int, float *, float *, float *)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Performs a dense matrix-vector multiply: Mxvec = Mxvec + M * vec. <a href="#b452e957171a4d0d9cfe6abb3d8a950c"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="ssp__blas2_8c.html#b9e8302d09840e67df27ddd4defaa621">sp_strsv</a> (char *uplo, char *trans, char *diag, <a class="el" href="structSuperMatrix.html">SuperMatrix</a> *L, <a class="el" href="structSuperMatrix.html">SuperMatrix</a> *U, float *x, <a class="el" href="structSuperLUStat__t.html">SuperLUStat_t</a> *stat, int *info)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Solves one of the systems of equations A*x = b, or A'*x = b. <a href="#b9e8302d09840e67df27ddd4defaa621"></a><br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="ssp__blas2_8c.html#3a14fab0d3fc42c621199aed6962ab3e">sp_sgemv</a> (char *trans, float alpha, <a class="el" href="structSuperMatrix.html">SuperMatrix</a> *A, float *x, int incx, float beta, float *y, int incy)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Performs one of the matrix-vector operations y := alpha*A*x + beta*y, or y := alpha*A'*x + beta*y,. <a href="#3a14fab0d3fc42c621199aed6962ab3e"></a><br></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2><pre> -- SuperLU routine (version 3.0) -- Univ. of California Berkeley, Xerox Palo Alto Research Center, and Lawrence Berkeley National Lab. October 15, 2003 </pre> <hr><h2>Function Documentation</h2><a class="anchor" name="a8bbeb2abbd5a10ac13fa9b48504691c"></a><!-- doxytag: member="ssp_blas2.c::slsolve" ref="a8bbeb2abbd5a10ac13fa9b48504691c" args="(int, int, float *, float *)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void slsolve </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">int </td> <td class="mdname" nowrap> <em>ldm</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>ncol</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>M</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>rhs</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>The unit lower triangular matrix is stored in a 2D array M(1:nrow,1:ncol). The solution will be returned in the rhs vector. </td> </tr></table><a class="anchor" name="b452e957171a4d0d9cfe6abb3d8a950c"></a><!-- doxytag: member="ssp_blas2.c::smatvec" ref="b452e957171a4d0d9cfe6abb3d8a950c" args="(int, int, int, float *, float *, float *)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void smatvec </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">int </td> <td class="mdname" nowrap> <em>ldm</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>nrow</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>ncol</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>M</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>vec</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>Mxvec</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>The input matrix is M(1:nrow,1:ncol); The product is returned in Mxvec[]. </td> </tr></table><a class="anchor" name="3a14fab0d3fc42c621199aed6962ab3e"></a><!-- doxytag: member="ssp_blas2.c::sp_sgemv" ref="3a14fab0d3fc42c621199aed6962ab3e" args="(char *trans, float alpha, SuperMatrix *A, float *x, int incx, float beta, float *y, int incy)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">int sp_sgemv </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">char * </td> <td class="mdname" nowrap> <em>trans</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float </td> <td class="mdname" nowrap> <em>alpha</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="structSuperMatrix.html">SuperMatrix</a> * </td> <td class="mdname" nowrap> <em>A</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>x</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>incx</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float </td> <td class="mdname" nowrap> <em>beta</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float * </td> <td class="mdname" nowrap> <em>y</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>incy</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td>⌨️ 快捷键说明
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