On Sat, Oct 1, 2011 at 10:23 AM, behzad baghapour <span dir="ltr"><<a href="mailto:behzad.baghapour@gmail.com">behzad.baghapour@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div>I meant by MatAssembly, the global indices of matrix elements (related to a dense format) which is changed into sparse one. So what would be right pattern to read the content of the Matrix from MatGetArray if I know that the original matrix is created by AIJ?</div>
</blockquote><div><br></div><div>MatGetArray() on an AIJ matrix will give you 'A'. What do you need this for? There are usually much</div><div>better ways to do things, and keep your code data-structure neutral.</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> </div>
<div class="gmail_quote">On Sat, Oct 1, 2011 at 4:21 PM, Jed Brown <span dir="ltr"><<a href="mailto:jedbrown@mcs.anl.gov" target="_blank">jedbrown@mcs.anl.gov</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="padding-left:1ex;margin:0px 0px 0px 0.8ex;border-left:#ccc 1px solid">
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<div class="gmail_quote">On Sat, Oct 1, 2011 at 00:39, behzad baghapour <span dir="ltr"><<a href="mailto:behzad.baghapour@gmail.com" target="_blank">behzad.baghapour@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="padding-left:1ex;margin:0px 0px 0px 0.8ex;border-left:#ccc 1px solid">
<div>I just be able to get right answer from MatGetArray( A, &a ) only if I define matrix in Dense fromat.</div>
<div> </div>
<div>How could I get the right Answer from this function when I define SparseAIJ matrix?</div></blockquote></div><br></div>
<div>Depends what you mean by "right answer". This function accesses private storage, so it's different for each matrix format. You might want to look at MatView() or MatConvert().</div></blockquote></div><br>
<font color="#888888">
<br clear="all"><br>-- <br>==================================<br>Behzad Baghapour<br>Ph.D. Candidate, Mechecanical Engineering<br>University of Tehran, Tehran, Iran<br><a href="https://sites.google.com/site/behzadbaghapour" target="_blank">https://sites.google.com/site/behzadbaghapour</a><br>
Fax: 0098-21-88020741<br>==================================<br><br>
</font></blockquote></div><br><br clear="all"><div><br></div>-- <br>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<br>