[Users] Possible Carpet issue with Maxwell version of ET

[Yosef Zlochower]

On 12/12/2011 11:35 AM, Frank Loeffler wrote:
> On Mon, Dec 12, 2011 at 10:32:55AM -0500, Yosef Zlochower wrote:
>>     ->  Internal error: extrapolation in time.  variable=LAZEV::dotalp
>> time=118.90625  times=[118.9375]
>>
>> I am unsure how the times could have gotten out of sync at such a late
>> time in the simulation without getting out of sync earlier. I also
>> do not understand why a time interpolation should have been attempted
>> in the first place. I don't sync or attempt to interpolate this GF.
>
> Do you regrid at that time? It might happen that in order to regrid at
> that particular time Carpet would need to interpolate in time, and it
> didn't do before because levels might have been lined up at the time of
> regridding.
>
> Frank

This is certainly possible, but I thought if you don't sync then
no prolongation occurs. Doesn't this mean that 1 timelevel GFs are not
regridded (i.e. immediately after regridding, they don't contain
valid data and must be reconstructed)?


-- 
Dr. Yosef Zlochower
Center for Computational Relativity and Gravitation
Assistant Professor
School of Mathematical Sciences
Rochester Institute of Technology
85 Lomb Memorial Drive
Rochester, NY 14623

Office:74-2067
Phone: +1 585-475-6103

yosef at astro.rit.edu

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