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
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@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
Users mailing list Users@einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users
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:
- An internal error in Carpet (that's why the warning was put in)
- 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@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
Users mailing list Users@einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users
Luca
Yes, in principle they may be caused by wrong parameters, in particular concerning number of boundary points. However, there may also be an error in determining the grid point weights, e.g. when the grid shapes are very weird (concave corners, grids too close to each other, etc.)
-erik
On Sun, Sep 9, 2012 at 8:31 PM, Luca Baiotti baiotti@ile.osaka-u.ac.jpwrote:
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:
- An internal error in Carpet (that's why the warning was put in)
- 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@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
Users mailing list Users@einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users
Users mailing list Users@einsteintoolkit.org http://lists.einsteintoolkit.org/mailman/listinfo/users
users@lists.einsteintoolkit.org
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Erik Schnetter -
Jakob Hansen -
Luca Baiotti