Roland, Just a late follow-up:
> Unless you use an excision mask, you should not ever see this error. I am using an excision mask. If I change revlevels to 1, then the error goes away. But yes, as you say, this grid configuration was deemed necessary for multigrid work. I've noticed that the warning is "non-critical" -- i.e. the simulation seems to proceed fine despite this message. I probably just never noticed the warning before, but have noticed it recently now that I'm using Mojave which colors such messages in red. :-) Thanks, Scott On 1/28/14 6:22 PM, "Roland Haas" <[email protected]> wrote: >-----BEGIN PGP SIGNED MESSAGE----- >Hash: SHA1 > >Hello Scott, > >> Making that change didn't affect the error. You're off the hook. >> ;-) >'Simulation domain volume and reduction weight sum differ' is a >diagnostic warning that CarpetReduce produces when it thinks that the >volume of the non-excised grid points is incorrectly computed. Unless >you use an excision mask, you should not ever see this error. We have >however in the past had problems with getting the test to work >correctly. Basically it is non-trivial to keep track of how much of >the grid volume ought to be removed for each masked point. Since you >are not using CarpetMask I would suspect that CarpetRegrid created a >grid that is considered incorrect. The grid may be incorrect or >Carpet's test. Looking at your parfile you seem to overlay the >coarsest level with two more refined levels of the same size but >higher resolution. This is "unusal" in that evolution runs would not >use this (though I see what for a MG solver this may be needed). So my >first test would be to reduce the number of reflevels to 1 (coarse >only) and see if this works. Then add one level but reduce its size to >half that of coarse one. If this fails, I'd increase the resolution to >have more than 12 cells present to see if the grids are too small. > >Yours, >Roland > >- -- >My email is as private as my paper mail. I therefore support encrypting >and signing email messages. Get my PGP key from http://keys.gnupg.net. >-----BEGIN PGP SIGNATURE----- >Version: GnuPG v1 >Comment: Using GnuPG with Icedove - http://www.enigmail.net/ > >iEYEARECAAYFAlLoSbkACgkQTiFSTN7SboUQhwCcCGM3L/xMtvOZRRIPVTSSm2UQ >6+UAoLeyBa+iDPkhhZbDtONoLuZ0HGta >=6x9z >-----END PGP SIGNATURE----- >_______________________________________________ >Users mailing list >[email protected] >http://lists.einsteintoolkit.org/mailman/listinfo/users _______________________________________________ Users mailing list [email protected] http://lists.einsteintoolkit.org/mailman/listinfo/users
