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<p>ok, here is what I want to do:</p>
<p>I am writing a brand new PC which needs some other PETSc objects
like a Vec (for unit partition).</p>
<p>We have a text based user file format in which the user can
create arbitrary Petsc's Vec or Mat.</p>
<p>Then, I would like the user to give the prefix of these Vec or
Mat as a parameter for the new PC that we would like to configure
completely via the "petsc options database".</p>
<p>So in our PCApply_XXX we would like to retrieve some specific
options which will simply give the Vec prefix to retreive.</p>
<p>Thanks,</p>
<p>Eric</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 2023-01-13 15:39, Matthew Knepley
wrote:<br>
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<blockquote type="cite"
cite="mid:CAMYG4GnsaWWwnSxj21at1a1ugkM099e7Ys8g6Lg1F1gstTZ=pw@mail.gmail.com">
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<div dir="ltr">On Fri, Jan 13, 2023 at 4:24 AM Eric Chamberland
<<a href="mailto:Eric.Chamberland@giref.ulaval.ca"
moz-do-not-send="true" class="moz-txt-link-freetext">Eric.Chamberland@giref.ulaval.ca</a>>
wrote:<br>
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<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
Is it possible with PETSc's API to query an objet by it's
name?<br>
<br>
Is there a "global" database with all PETScObject created?<br>
</blockquote>
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<div>No, we do not store that information. What would the use
case be? Maybe there is another way to do it.</div>
<div><br>
</div>
<div> Thanks,</div>
<div><br>
</div>
<div> Matt</div>
<div> </div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
Thanks,<br>
<br>
Eric<br>
<br>
-- <br>
Eric Chamberland, ing., M. Ing<br>
Professionnel de recherche<br>
GIREF/Université Laval<br>
(418) 656-2131 poste 41 22 42<br>
<br>
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-- <br>
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<div>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><br>
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<div><a href="http://www.cse.buffalo.edu/~knepley/"
target="_blank" moz-do-not-send="true">https://www.cse.buffalo.edu/~knepley/</a><br>
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<pre class="moz-signature" cols="72">--
Eric Chamberland, ing., M. Ing
Professionnel de recherche
GIREF/Université Laval
(418) 656-2131 poste 41 22 42</pre>
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