<html><body><div style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000"><div>Thanks Mat,</div><div><br></div><div>according tot he hypre documentation, pilut is "no longer supported by the hypre team", as less efficient than Euclid, so I wouldn't consider an option. I wsa looking for a "natural" upgrade path.</div><div><br></div><div>The problems we've looked at for the moment can be up to a few millions cells (that's the size of the pressure block, the saturation block is larger, but should be easier to solve). We're aiming for 10^6 cells, and 10^3 cores.</div><div>Yes, direct methods deserve a second look !</div><div><br></div><div>Michel</div><div><br></div><hr id="zwchr"><blockquote style="border-left:2px solid #1010FF;margin-left:5px;padding-left:5px;color:#000;font-weight:normal;font-style:normal;text-decoration:none;font-family:Helvetica,Arial,sans-serif;font-size:12pt;" data-mce-style="border-left: 2px solid #1010FF; margin-left: 5px; padding-left: 5px; color: #000; font-weight: normal; font-style: normal; text-decoration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;"><div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Feb 7, 2017 at 2:49 AM, Michel Kern <span dir="ltr"><<a href="mailto:michel.kern@inria.fr" target="_blank" data-mce-href="mailto:michel.kern@inria.fr">michel.kern@inria.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><div><div style="font-family:arial,helvetica,sans-serif;font-size:12pt;color:#000000" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div>I have a code that uses euclid for ILU preconditioning (as part of a CPR-AMG preconditioner for a mulitphase flow solver). As noted in the release notes, euclid is no longer supported starting from 3.6. What is the recommended replacement ? Is block Jacobi plus a local solver an alternative ? </div></div></div></blockquote><div><br></div><div>There is pilut from Hypre.</div><div><br></div><div>How big is the problem? Did you try sparse direct on it (SuperLU, MUMPS)?</div><div><br></div><div> Thanks,</div><div><br></div><div> Matt</div><div> <br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex" data-mce-style="margin: 0 0 0 .8ex; border-left: 1px #ccc solid; padding-left: 1ex;"><div><div style="font-family:arial,helvetica,sans-serif;font-size:12pt;color:#000000" data-mce-style="font-family: arial,helvetica,sans-serif; font-size: 12pt; color: #000000;"><div>Thanks</div><div>Michel</div><div><br></div><div>-- <br></div><div><span></span><div><span style="font-family:arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">Michel Kern</span></div><div><span style="font-size:12pt" data-mce-style="font-size: 12pt;"><span style="font-family:arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">Centre de Recherche Inria de Paris, Maison de la Simulation</span></span></div><div><span style="font-family:arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">2 rue Simone Iff, bureau A413, Digiteo Labs, bāt 565, <span style="font-size:12pt" data-mce-style="font-size: 12pt;">CEA Saclay</span><span style="font-size:12pt" data-mce-style="font-size: 12pt;"> </span></span></div><div><span style="font-family:arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">75012 Paris 91191 Gif-sur-Yvette cedex </span></div><div><span style="font-family:arial,helvetica,sans-serif" data-mce-style="font-family: arial,helvetica,sans-serif;">tel. : <a href="tel:+33%201%2080%2049%2042%2036" target="_blank" data-mce-href="tel:+33%201%2080%2049%2042%2036">+33 (0)1 80 49 42 36</a>, <span class="m_-8652995892514175014Apple-tab-span" style="white-space:pre-wrap" data-mce-style="white-space: pre-wrap;"> </span> tel. : <a href="tel:+33%201%2069%2008%2058%2032" target="_blank" data-mce-href="tel:+33%201%2069%2008%2058%2032">+33 (0)1 69 08 58 32</a> </span></div><div style="font-family:arial,helvetica,sans-serif;color:#000000;font-size:12pt" data-mce-style="font-family: arial,helvetica,sans-serif; color: #000000; font-size: 12pt;"><br></div><span></span><br></div></div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">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><div><br><br></div><div><br></div><div>-- <br></div><div><span name="x"></span>Michel Kern<br>Centre de recherche Inria de Paris, Maison de la Simulation, <br>2 rue Simone Iff, bureau A413, Digiteo Labs, bāt. 565, CEA Saclay <br>75012 Paris 91191 Gif-sur-Yvette Cedex <br>tel. : +33 (0)1 80 49 42 36, tel. : +33 (0)1 69 08 58 32 <span name="x"></span><br></div></div></body></html>