On Mon, Aug 20, 2012 at 7:18 AM, Thomas Witkowski <span dir="ltr"><<a href="mailto:thomas.witkowski@tu-dresden.de" target="_blank">thomas.witkowski@tu-dresden.de</a>></span> wrote:<br><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div>Am 20.08.2012 13:39, schrieb Matthew
Knepley:<br>
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<blockquote type="cite">On Mon, Aug 20, 2012 at 3:09 AM, Thomas Witkowski <span dir="ltr"><<a href="mailto:thomas.witkowski@tu-dresden.de" target="_blank">thomas.witkowski@tu-dresden.de</a>></span>
wrote:<br>
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Is it possible to change the PCFIELDSPLIT / block Gauss-Seidel
preconditioner to use A_01 instead of A_10 to solve an upper
triangular system?</blockquote>
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<div>It always uses A_01. What exactly do you want to do?</div>
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In this case the documentation should be changed (see p. 86)<br></div></blockquote><div><br></div><div>I did not understand your question. The correct answer is: You can define fields</div><div>in any order.</div><div>
<br></div><div> Matt</div><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div text="#000000" bgcolor="#FFFFFF">
Thomas<br>
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<div> Matt</div>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><font color="#888888"><br>
Thomas<br>
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-- <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>
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</blockquote></div><br><br clear="all"><div><br></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>