[MITgcm-support] Using gmredi parameterization in a different 'tutorial' directory

[Ryan Abernathey]

Hi David,

The GM-Redi package is not built by default. You need to tell the  
compiler to build it when you compile. If you enable it in data.pkg  
(as you did) without actually building it into your executable, you  
will get that error.

It is easy to fix--in fact you already guessed the answer. Just put a  
packages.conf in your code directory that contains the line "gmredi",  
and repeat the build process. If you want to copy the file from  
tutorial_baroclinic_gyre/code/packages.conf, that will work fine. Just  
be aware that it will also build other packages such as ptracers and  
mnc. You can read about how package inclusion / exclusion works here:
http://mitgcm.org/public/r2_manual/latest/online_documents/node226.html

The parameters for gmredi can all be controlled from the data.gmredi  
file, without having to re-compile anything.

If you need to modifiy the code, you can put modified versions of any  
of the source code files in your local "code" directory. If you do  
this, you have to re-build your executable again. The source files for  
gmredi are in pkg/gmredi/.

Good luck,
__________________
Ryan Abernathey
rpa at mit.edu
MIT Ph.D. Student
Program in Oceans Atmospheres & Climate
http://web.mit.edu/rpa/



On Apr 8, 2010, at 4:25 PM, David Lewis wrote:

> Hello,
>
> I’m writing to request assistance in setting up MITgcm to run a  
> global circulation model with the Gent-McWilliams-Redi  
> parameterization.  While I have some basic understanding of the  
> workings of MITgcm, I am not conversant in FORTRAN language (end  
> user knowledge).  In trying to get my code to work I did the  
> following:
>
> -I’m running out of ‘…/tutorial_baroclinic gyre/’ directory,  
> compiling out of ‘build’ and running out of a revised ‘input’  
> directory.
>
> -I copied the ‘data.gmredi’ baseline file from another tutorial  
> directory (tutorial_global_oce_latlon/input) into my revised input  
> directory.
> -I modified the data.pkg file in my input directory to  
> read:                   useGMRedi=.TRUE.,
> -when I did the ‘make depend’ and ‘make’ commands, and then ran from  
> ‘input’ I got the following errors:
>
> (PID.TID 0000.0001) ** WARNING ** INI_PARMS:   phiMin no longer  
> supported <= replaced by ygOrigin
> (PID.TID 0000.0001) *** ERROR *** from PACKAGES_CHECK: run-time  
> control flag useGMRedi is set
> (PID.TID 0000.0001) *** ERROR *** but pkg/gmredi was not compiled  
> (ALLOW_GMREDI undef).
> (PID.TID 0000.0001) *** ERROR *** ==> Re-compile with pkg "gmredi"  
> in file "packages.conf"
>
> I did notice that in the ‘tutorial_global_oce_latlon/code’  
> directory, that there was a file named ‘packages.conf’.  Would a  
> simple copy of this file into the ‘tutorial_baroclinic_gyre/code’  
> directory help solve this problem?  If I need to modify the code,  
> what do I modify?  I can modify parameters once I get the general  
> structure set up, just need to know how to get this to compile  
> properly. Thanks for your help.
>
> V/r,
> David Lewis
>
>
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