On Thu, Aug 27, 2009 at 1:35 PM, Rodrigo Araujo <span dir="ltr"><<a href="mailto:rodrigowpa@gmail.com">rodrigowpa@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;">
Matt,<br><br>Thank you for answering. Another question. Which functions does the PETSc call the BLAS routines to multiply those matrices?</blockquote><div><br>Only the DENSE amtrix type uses BLAS.<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;"><br>Thanks.<br><br><div class="gmail_quote">2009/8/27 Matthew Knepley <span dir="ltr"><<a href="mailto:knepley@gmail.com" target="_blank">knepley@gmail.com</a>></span><div class="im">
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>On Thu, Aug 27, 2009 at 12:15 PM, Rodrigo Araujo <span dir="ltr"><<a href="mailto:rodrigowpa@gmail.com" target="_blank">rodrigowpa@gmail.com</a>></span> wrote:<br>
</div><div class="gmail_quote"><div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Good afternoon,<br><br>I am multiplying two matrices using the function MatMatMult_MPIAIJ_MPIAIJ, but I'd like to know if this function calls the BLAS routine that multiply matrices, and if yes ,where.</blockquote></div>
<div>
<br>No, this is for sparse matrices.<br><br> Matt<br> </div><div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><br>Best Regards.<br clear="all">
<font color="#888888">
<br>-- <br>Rodrigo W. Pimentel Araujo<br>Engenharia da Computação<br>UFPE<br>
</font></blockquote></div></div><font color="#888888"><br><br clear="all"><br>-- <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>
</font></blockquote></div></div><div><div></div><div class="h5"><br><br clear="all"><br>-- <br>Rodrigo W. Pimentel Araujo<br>Engenharia da Computação<br>UFPE<br>
</div></div></blockquote></div><br><br clear="all"><br>-- <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>