topic block tridiagonal and block upper hessenberg eigenvalue solvers in Intel® oneAPI Math Kernel Library https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/block-tridiagonal-and-block-upper-hessenberg-eigenvalue-solvers/m-p/1034287#M20318 <P>Dear all,</P> <P>I am looking at some options in order to compare the performance of eigenvalue solvers for</P> <P>+ symmetric block tridiagonal&nbsp;</P> <P>+ block upper hessenberg matrices.</P> <P>If I iterate in a single vector fashion(not in blocks), I can use stevd and hseqr, respectively(I guess), since the manual and selection tree points to these routines.</P> <P>But if I convert to block iteration mode, is there a direct replacement for these routines when the matrices become block symmetric tridiagonal or block upper hessenberg.</P> <P>What would be the most efficient way for the computation of the eigenvalues and eigenvectors in the case of block iterations for a symmetric and hessenberg matrix?</P> <P>Best,</P> <P>Umut</P> Fri, 24 Oct 2014 09:31:34 GMT utab 2014-10-24T09:31:34Z block tridiagonal and block upper hessenberg eigenvalue solvers https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/block-tridiagonal-and-block-upper-hessenberg-eigenvalue-solvers/m-p/1034287#M20318 <P>Dear all,</P> <P>I am looking at some options in order to compare the performance of eigenvalue solvers for</P> <P>+ symmetric block tridiagonal&nbsp;</P> <P>+ block upper hessenberg matrices.</P> <P>If I iterate in a single vector fashion(not in blocks), I can use stevd and hseqr, respectively(I guess), since the manual and selection tree points to these routines.</P> <P>But if I convert to block iteration mode, is there a direct replacement for these routines when the matrices become block symmetric tridiagonal or block upper hessenberg.</P> <P>What would be the most efficient way for the computation of the eigenvalues and eigenvectors in the case of block iterations for a symmetric and hessenberg matrix?</P> <P>Best,</P> <P>Umut</P> Fri, 24 Oct 2014 09:31:34 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/block-tridiagonal-and-block-upper-hessenberg-eigenvalue-solvers/m-p/1034287#M20318 utab 2014-10-24T09:31:34Z