prolongation='none' is one of the possibilities; there are other prolongation types, e.g. sync, restrict, or copy.<div><br></div><div>To find out what is going on, we need to find out which thorn called on Carpet to interpolate in time for what reason. A stack backtrace or similar information would be useful.<br>
<div><br></div><div>-erik<br><br><div class="gmail_quote">On Mon, Dec 12, 2011 at 12:45 PM, Yosef Zlochower <span dir="ltr"><<a href="mailto:yosef@astro.rit.edu">yosef@astro.rit.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div class="im">On 12/12/2011 12:11 PM, Erik Schnetter wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Other causes for a timer interpolation may be a spatial interpolation at<br>
a time where the coarse grid does not exist, or a reduction operation at<br>
such a time (e.g. for scalar output).<br>
<br>
</blockquote>
<br></div>
I haven't declared it with prolongation=none, but I never interpolate<br>
it, reduce it, or sync it.<div class="im"><br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
How do you declare this variable? You may need to explicitly tell Carpet<br>
to leave this variable alone, or to report an error when such an<br>
operation is attempted.<br>
<br>
</blockquote></div>
How do I do this?<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
-erik<br>
<br>
On Mon, Dec 12, 2011 at 11:35 AM, Frank Loeffler <<a href="mailto:knarf@cct.lsu.edu" target="_blank">knarf@cct.lsu.edu</a><br></div><div><div class="h5">
<mailto:<a href="mailto:knarf@cct.lsu.edu" target="_blank">knarf@cct.lsu.edu</a>>> wrote:<br>
<br>
On Mon, Dec 12, 2011 at 10:32:55AM -0500, Yosef Zlochower wrote:<br>
> -> Internal error: extrapolation in time. variable=LAZEV::dotalp<br>
> time=118.90625 times=[118.9375]<br>
><br>
> I am unsure how the times could have gotten out of sync at such a<br>
late<br>
> time in the simulation without getting out of sync earlier. I also<br>
> do not understand why a time interpolation should have been attempted<br>
> in the first place. I don't sync or attempt to interpolate this GF.<br>
<br>
Do you regrid at that time? It might happen that in order to regrid at<br>
that particular time Carpet would need to interpolate in time, and it<br>
didn't do before because levels might have been lined up at the time of<br>
regridding.<br>
<br>
Frank<br>
<br>
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Dr. Yosef Zlochower<br>
Center for Computational Relativity and Gravitation<br>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br>Erik Schnetter <<a href="mailto:schnetter@cct.lsu.edu" target="_blank">schnetter@cct.lsu.edu</a>> <a href="http://www.cct.lsu.edu/~eschnett/" target="_blank">http://www.cct.lsu.edu/~eschnett/</a><br>
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