<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Feb 2, 2016 at 8:35 AM, Orxan Shibliyev <span dir="ltr"><<a href="mailto:orxan.shibli@gmail.com" target="_blank">orxan.shibli@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">After hole cutting my unstructured mesh has some active and inactive/fringe cells. I solve equations on active/computational/field cells only. Some of the active cells are neighbors of inactive cells. If I prepare petsc matrix including all cells then the solver does not converge due unchanging values of inactive cells. How can I tell Petsc not to solve for certain rows? If I make all cells active then the solver converge so I am sure that there is no problem related to solver.</div>
</blockquote></div><br>Leave them out of the matrix?</div><div class="gmail_extra"><br></div><div class="gmail_extra"> Matt<br clear="all"><div><br></div>-- <br><div class="gmail_signature">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>
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