<p dir="ltr">Thanks, that will help me. Now what I would like to have is the following: if I have two processors and ten edges, the partitioning results in the first processor having the edges 0-4 and the second processor, the edges 5-9. I also have a global vector with as many components as edges, 10. How can I partition it so the first processor also has the 0-4 components and the second, the 5-9 components of the vector?</p>
<p dir="ltr">Miguel</p>
<div class="gmail_quote">On Feb 23, 2015 8:08 AM, "Abhyankar, Shrirang G." <<a href="mailto:abhyshr@mcs.anl.gov">abhyshr@mcs.anl.gov</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word;color:rgb(0,0,0);font-size:14px;font-family:Helvetica,sans-serif">
<div>Miguel,</div>
<div> One possible way is to store the global numbering of any edge/vertex in the "component" attached to it. Once the mesh gets partitioned, the components are also distributed so you can easily retrieve the global number of any edge/vertex by accessing
its component. This is what is done in the DMNetwork example pf.c although the global numbering is not used for anything. </div>
<div><br>
</div>
<div>Shri</div>
<span>
<div style="font-family:Calibri;font-size:11pt;text-align:left;color:black;BORDER-BOTTOM:medium none;BORDER-LEFT:medium none;PADDING-BOTTOM:0in;PADDING-LEFT:0in;PADDING-RIGHT:0in;BORDER-TOP:#b5c4df 1pt solid;BORDER-RIGHT:medium none;PADDING-TOP:3pt">
<span style="font-weight:bold">From: </span>Matthew Knepley <<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>><br>
<span style="font-weight:bold">Date: </span>Mon, 23 Feb 2015 07:54:34 -0600<br>
<span style="font-weight:bold">To: </span>Miguel Angel Salazar de Troya <<a href="mailto:salazardetroya@gmail.com" target="_blank">salazardetroya@gmail.com</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>" <<a href="mailto:petsc-users@mcs.anl.gov" target="_blank">petsc-users@mcs.anl.gov</a>><br>
<span style="font-weight:bold">Subject: </span>Re: [petsc-users] DMNetworkGetEdgeRange() in parallel<br>
</div>
<div><br>
</div>
<blockquote style="BORDER-LEFT:#b5c4df 5 solid;PADDING:0 0 0 5;MARGIN:0 0 0 5">
<div dir="ltr">
<div class="gmail_extra">
<div class="gmail_quote">On Sun, Feb 22, 2015 at 3:59 PM, Miguel Angel Salazar de Troya
<span dir="ltr"><<a href="mailto:salazardetroya@gmail.com" target="_blank">salazardetroya@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">Thanks. Once I obtain that Index Set with the routine <span style="font-size:13px">DMPlexCreateCellNumbering() (I assume that the edges in DMNetwork correspond to cells in DMPlex) can I use it to partition a vector with as many components as
edges I have in my network?</span></div>
</blockquote>
<div><br>
</div>
<div>I do not completely understand the question.</div>
<div><br>
</div>
<div>If you want a partition of the edges, you can use DMPlexCreatePartition() and its friend DMPlexDistribute(). What</div>
<div>are you trying to do?</div>
<div><br>
</div>
<div> Matt</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div><span style="font-size:13px">Thanks</span></div>
<div><span style="font-size:13px">Miguel</span></div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Feb 22, 2015 at 12:15 PM, Matthew Knepley <span dir="ltr">
<<a href="mailto:knepley@gmail.com" target="_blank">knepley@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">
<div class="gmail_extra">
<div class="gmail_quote"><span>On Sun, Feb 22, 2015 at 11:01 AM, Miguel Angel Salazar de Troya
<span dir="ltr"><<a href="mailto:salazardetroya@gmail.com" target="_blank">salazardetroya@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">Hi
<div><br>
</div>
<div>I noticed that the routine DMNetworkGetEdgeRange() returns the local indices for the edge range. Is there any way to obtain the global indices? So if my network has 10 edges, the processor 1 has the 0-4 edges and the processor 2, the 5-9 edges, how can
I obtain this information?</div>
</div>
</blockquote>
<div><br>
</div>
</span>
<div>One of the points of DMPlex is we do not require a global numbering. Everything is numbered</div>
<div>locally, and the PetscSF maps local numbers to local numbers in order to determine ownership.</div>
<div><br>
</div>
<div>If you want to create a global numbering for some reason, you can using DMPlexCreatePointNumbering().</div>
<div>There are also cell and vertex versions that we use for output, so you could do it just for edges as well.</div>
<div><br>
</div>
<div> Thanks,</div>
<div><br>
</div>
<div> Matt</div>
<span>
<div> </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>Thanks </div>
<span><font color="#888888">
<div>Miguel<br clear="all">
<div><br>
</div>
-- <br>
<div>
<div dir="ltr"><font face="verdana,sans-serif"><b>Miguel Angel Salazar de Troya</b></font><span><font color="#888888"><br>
<font face="arial,helvetica,sans-serif">Graduate Research Assistant<br>
Department of Mechanical Science and Engineering<br>
</font>University of Illinois at Urbana-Champaign<br>
<a href="tel:%28217%29%20550-2360" value="+12175502360" target="_blank">(217) 550-2360</a><br>
<a href="mailto:salaza11@illinois.edu" target="_blank">salaza11@illinois.edu</a></font></span>
<div><br>
</div>
</div>
</div>
</div>
</font></span></div>
</blockquote>
</span></div>
<span><font color="#888888"><br>
<br clear="all">
<span><font color="#888888">
<div><br>
</div>
-- <br>
<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>
</font></span></font></span></div>
</div>
<span><font color="#888888"></font></span></blockquote>
</div>
<span><font color="#888888"><br>
<br clear="all">
<div><br>
</div>
-- <br>
<div>
<div dir="ltr"><font face="verdana,sans-serif"><b>Miguel Angel Salazar de Troya</b></font><span><font color="#888888"><br>
<font face="arial,helvetica,sans-serif">Graduate Research Assistant<br>
Department of Mechanical Science and Engineering<br>
</font>University of Illinois at Urbana-Champaign<br>
<a href="tel:%28217%29%20550-2360" value="+12175502360" target="_blank">(217) 550-2360</a><br>
<a href="mailto:salaza11@illinois.edu" target="_blank">salaza11@illinois.edu</a></font></span>
<div><br>
</div>
</div>
</div>
</font></span></div>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<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>
</div>
</blockquote>
</span>
</div>
</blockquote></div>