[Users] Simulation domain volume and reduction weight sum differ

[Luca Baiotti]

Hello,

I am seeing this warnings in a BNS moving-grid simulation without 
CarpetMask (using carpet's development version). It appears only after a 
limited (small) number of regriddings (close to one another) during the 
inspiral, not at the very beginning of the simulation. So I would think 
that they are not caused by wrong parameters. May they be?

Cheers,
Luca


On 9/27/11 10:41 AM, Erik Schnetter wrote:
> There are three possible causes for this warning:
>
> 1. An internal error in Carpet (that's why the warning was put in)
> 2. An inconsistent grid structure setup, e.g. near a symmetry or an
> outer boundary, i.e. an error in a parameter file
> 3. You are using thorn CarpetMask to exclude a horizon from reductions
>
> In case 3 the warning is harmless (and should not be there -- sorry).
>
> -erik
>
> On Mon, Sep 26, 2011 at 9:25 PM, Jakob Hansen
> <jakobidetsortehul at gmail.com> wrote:
>> Hi,
>>
>> Using mercurial, I get this warning during simulations :
>>
>> INFO (CarpetReduce): Simulation domain volume: 170368000
>> INFO (CarpetReduce): Reduction weight sum:     170367999.880642
>> WARNING level 1 in thorn CarpetReduce processor 0 host tachyon2974
>>    (line 120 of
>> /home01/r632kgw/jakob/CactusP/arrangements/Carpet/CarpetReduce/src/mask_test.c):
>>    -> Simulation domain volume and reduction weight sum differ
>>
>> Simulations seem to run okay though. What is causing this warning and is it
>> serious or can I just ignore it?
>>
>> Cheers,
>> Jakob
>>
>>
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>
>
>