https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045193#M20924 <P>I have been using dgesv for solving Ax=b, but my matrix A happens to be tridiagonal. I am wondering if there are any specific solvers in MKL that handle Ax=b where A is tridiagonal. Thanks in advance!</P> Tue, 28 Apr 2015 01:28:27 GMT Matt_S_ 2015-04-28T01:28:27Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045193#M20924 <P>I have been using dgesv for solving Ax=b, but my matrix A happens to be tridiagonal. I am wondering if there are any specific solvers in MKL that handle Ax=b where A is tridiagonal. Thanks in advance!</P> Tue, 28 Apr 2015 01:28:27 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045193#M20924 Matt_S_ 2015-04-28T01:28:27Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045194#M20925 <P>Matt,&nbsp;</P> <P>These two LAPACK function support the&nbsp;<SPAN style="font-size: 11.9999990463257px; line-height: 20px;">&nbsp;tridiagonal matrix. Can yo check if it works for you?</SPAN></P> <P><A href="https://software.intel.com/en-us/node/520879" target="_blank">https://software.intel.com/en-us/node/520879</A><BR /> <SPAN style="font-size: 1em; line-height: 1.5;"><A href="https://software.intel.com/en-us/node/520894" target="_blank">https://software.intel.com/en-us/node/520894</A><BR /> <BR /> Thanks,<BR /> Chao</SPAN></P> <P>&nbsp;</P> Tue, 28 Apr 2015 02:57:56 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045194#M20925 Chao_Y_Intel 2015-04-28T02:57:56Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045195#M20926 <P>Are those any better than ?gtsv?</P> Sat, 11 Aug 2018 21:44:58 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Tridiagonal-Solver-for-Ax-b/m-p/1045195#M20926 Royi 2018-08-11T21:44:58Z