<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Great Thanks for clarifying .<div><br></div><div><br><div><div>Le 22 avr. 2013 à 17:14, Jed Brown a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Tahar Amari <<a href="mailto:tahar.amari@polytechnique.edu">tahar.amari@polytechnique.edu</a>> writes:<br><br><blockquote type="cite">I am not sure I understand your point. I guess you mean that inside<br></blockquote><blockquote type="cite">petsc only a version of Gmres working with preconditioning is not yet<br></blockquote><blockquote type="cite">implemanted , Am I right ?<br></blockquote><br>I have no idea what Matt intended to say, but all PETSc Krylov methods<br>use preconditioners. However, as Matt and Mark said, multigrid is much<br>better than block Jacobi as a preconditioner for these problems.<br></div></blockquote></div><br><div>
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