<div class="gmail_quote">2011/6/6 Dürrwang, Jürgen <span dir="ltr"><<a href="mailto:Juergen.Duerrwang@iosb.fraunhofer.de">Juergen.Duerrwang@iosb.fraunhofer.de</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="DE" link="blue" vlink="purple"><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Thanks,</span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal">
<span lang="EN-US" style="font-size:11.0pt;color:#1F497D">for help, I have read both algorithms in Saad. My main problem in understanding of the procedure is how the decompose the domain. At the moment I decompose with jacobi block method(without overlapping) and I run on each block LIU(0) in parallel after that I put each solution together for an CG solver. With that my iteration number raises instead of break down, so there must be something wrong </span><span lang="EN-US" style="font-size:11.0pt;font-family:Wingdings;color:#1F497D">J</span><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">.</span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D"> </span></p><p class="MsoNormal"><span lang="EN-US" style="font-size:11.0pt;color:#1F497D">Perhaps you know the order of the methods? First Jacobi-block then additive-Schwarz then ILU(0) and at least cg loop, or is it another order?</span></p>
</div></div></blockquote><div><br></div><div>I don't understand what you're asking. Have you looked at some PETSc examples? You should be able to do this stuff with run-time options. If you are trying something that doesn't work, send the options you ran with and the output. Running with -ksp_view is helpful to see what method is being used.</div>
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