<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear Petsc users and developers,<div class=""><br class=""></div><div class="">I have a MPIAIJ matrix (already assembled) and I would like to transform it in a block matrix with of block dimension 3.</div><div class="">Is there a easy way to do that?</div><div class=""><br class=""></div><div class="">Thank you in advance,</div><div class=""><br class=""></div><div class="">Sonia</div><div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Ph.D. Student</font></div><div class="" style="margin: 0px;"><font color="#6f6f6f" class="">Group of Prof. Rolf Krause</font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);"><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Institute of Computational Science</font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Università della Svizzera italiana</font></div></font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Center for Computation Medicine in Cardiology</font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><span style="color: rgb(111, 111, 111);" class="">Via Giuseppe Buffi, 13</span></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">CH-6900 Lugano</font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Switzerland</font></div><div class="" style="color: rgb(111, 111, 111); margin: 0px; line-height: normal; min-height: 12px;"><br class=""></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Email:<span class="Apple-converted-space"> </span><a href="mailto:pozzis@usi.ch" class="">pozzis@usi.ch</a> </font></div><div class="" style="color: rgb(0, 0, 0); margin: 0px;"><font face="Helvetica" color="#6f6f6f" class="" style="line-height: normal; color: rgb(111, 111, 111);">Phone: </font><span style="color: rgb(111, 111, 111);" class="">+41 58 666 4972</span></div></div></div>
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