On Tue, Jan 6, 2009 at 11:52 AM, Yujie <span dir="ltr"><<a href="mailto:recrusader@gmail.com">recrusader@gmail.com</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<p>Dear PETSc developers:</p><p>I am trying to use MatGetArray() and MatSetValues() to combine several MPIDense matrices into one matrix. At the beginning, I use </p><p>MatGetOwnershipRange() and Mat->camp.rstart; Mat->cmap.rend (2.3.3-p8 version) to get the start, end row and column. I can calculate the local rows and columns.</p>
<p>I also use MatGetLocalSize() to confirm the accuracy. However, I always find some data loses in the combined matrix.</p><p>And then, I try to use MatDenseGetLocalMatrix() to get the lcoal matrix and output it. I find column information by MatGetLocalSize() is not consistent with by MatDenseGetLocalMatrix(), is it bug? could you give me some advice? thanks a lot.</p>
</blockquote><div>What information?<br><br> Matt<br> </div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><p></p>
<p>Regards,</p><p>Yujie</p>
</blockquote></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>