<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Wed, Apr 25, 2018 at 5:10 AM, Savneet Kaur <span dir="ltr"><<a href="mailto:Savneet.KAUR@cea.fr" target="_blank">Savneet.KAUR@cea.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Hello,</p>
<p>Warm Regards<br>
</p>
<p>I am Savneet Kaur, a master student at University Paris Saclay
and currently pursuing an internship at CEA Saclay (France).</p>
<p>I have recently started to understand the slepc and petsc
solvers, by taking up the tutorials for eigenvalue problems. In my
internship work I have to develop a laplacian matrix from a given
transition rate matrix and solve it using SLEPC and PETSC and to
evaluate the lowest eigenvalue.<br>
</p>
<p>I was wondering if I could get some information. I need to
diagonalize a 2D Laplacian matrix. And writing a code in C and
diagonalizing it is easy. But I am not getting it how to
accommodate with the SLEPC Program. Am i suppose to use any
packages or it will is done by a loop? Or I need to read some
other manual to understand how does it work. Please kindly let me
know.</p></div></blockquote><div>I would just like to clarify some terminology. "Diagonalize" would usually mean find all eigenvalues and eigenvectors.<br></div><div>Is this what you mean? Often, SLEPc users want only a portion of the spectrum since the matrices are enormous.</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF">
<p>The diagonalizing a matrix will be preliminary step of my work.</p>
<p>I will be highly obliged to the the team, if I could get help.</p>
<p>Hoping for a favorable response from your side.</p>
<p>Thank you for the time and consideration.</p>
<p><br>
</p>
<p>Sincerely,</p>
<p><b>Savneet Kaur</b></p>
<div>
<p><b><span style="font-size:10pt;background-image:initial;background-position:initial;background-repeat:initial">Intern
at </span><span style="font-size:10pt">DEN/DANS/DMN/SRMP</span></b></p>
<p>
</p>
</div>
<p>
</p>
<p><b><span style="font-size:10pt">CEA - Centre de Saclay </span><span style="font-size:10pt">ǀ</span><span style="font-size:10pt"> Bâtiment 520<br>
</span></b></p>
<p><span style="font-size:10pt"><b>91191 Gif-sur-Yvette Cedex</b></span></p>
<p><span style="font-size:10pt"><b>France</b></span></p>
<p><span style="font-size:10pt"><b>Tel: +33 (0) 666 749 000</b></span></p>
<p><span style="font-size:10pt"><b>Email: <a class="m_-3274466247898941997moz-txt-link-abbreviated" href="mailto:savneet.kaur@cea.fr" target="_blank">savneet.kaur@cea.fr</a><br>
</b></span></p>
<p><br>
</p>
<p><br>
</p>
</div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>-- Norbert Wiener</div><div><br></div><div><a href="http://www.caam.rice.edu/~mk51/" target="_blank">https://www.cse.buffalo.edu/~knepley/</a><br></div></div></div></div></div>
</div></div>