Chimera Grid Tools: parameter size

Claudio · May 18, 2010, 10:54

I am trying to use the CGT with a database that contains a triangular mesh. When I use surgrd I get the message "Recompile using MEDGE > 102673". I have been looking everywhere in the source file but cannot find where the MEDGE parameter is set.

Does anybody know?

Thanks,
Claudio

www.appliedfluidtech.com

Claudio · May 21, 2010, 10:07

Apparently a hard-to-find error in one of the input threw the CGT off. When I caught that the message of recompiling with a bigger size disappear. Still I wonder where MEDGE is set since I could not find it in any source or include files using "grep".

agd · May 21, 2010, 11:55

MEDGE is computed in the tridat.F subroutine (found in the lib subdirectory). The only way to make it larger, as far as I can tell, is to change the calculation from MEDGE=4*NVERT to something bigger. If you do that you will probably want to check the gui/og.c routine also - it appears that some storage is computed there which may need to be consistent with the tridat.F value. Beyond this, I cannot find any other places where MEDGE takes on a value. (This is for versions 1.7 and 1.8). Makes me wonder if the variable used to be a parameter when the check was first put in, but somewhere someone decided to compute it and never changed the check condition.

May 18, 2010, 10:54	Chimera Grid Tools: parameter size	#1
Claudio New Member Claudio Join Date: May 2010 Location: Boston, MA Posts: 28 Rep Power: 15	I am trying to use the CGT with a database that contains a triangular mesh. When I use surgrd I get the message "Recompile using MEDGE > 102673". I have been looking everywhere in the source file but cannot find where the MEDGE parameter is set. Does anybody know? Thanks, Claudio www.appliedfluidtech.com

May 21, 2010, 10:07	Problem solved	#2
Claudio New Member Claudio Join Date: May 2010 Location: Boston, MA Posts: 28 Rep Power: 15	Apparently a hard-to-find error in one of the input threw the CGT off. When I caught that the message of recompiling with a bigger size disappear. Still I wonder where MEDGE is set since I could not find it in any source or include files using "grep".

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May 21, 2010, 11:55		#3
agd Senior Member Join Date: Jul 2009 Posts: 351 Rep Power: 18	MEDGE is computed in the tridat.F subroutine (found in the lib subdirectory). The only way to make it larger, as far as I can tell, is to change the calculation from MEDGE=4*NVERT to something bigger. If you do that you will probably want to check the gui/og.c routine also - it appears that some storage is computed there which may need to be consistent with the tridat.F value. Beyond this, I cannot find any other places where MEDGE takes on a value. (This is for versions 1.7 and 1.8). Makes me wonder if the variable used to be a parameter when the check was first put in, but somewhere someone decided to compute it and never changed the check condition.