[MITgcm-support] Increasing the number of grid points

Joseph Schoonover js08s at fsu.edu
Fri Oct 1 15:29:28 EDT 2010

So, I've successfully changed the binary files 'bathyPolR.bin' and 'thetaPolR.bin' and have changed the proper parameters in 'data' and 'size.h'. Upon execution, I get the following error:

" Unable to open execution environment parameter file "eedata"
STOP ABNORMAL END: S/R EESET_PARMS statement executed "

I'm not quite sure what this means. After looking under the rotating_tank portion of the manual, I do not see anything on eedata other than the fact that this files contains no customizations for this experiment.

Is there a particular portion of the manual I should look over?

Joe Schoonover

----- Original Message -----
From: "Christoph Völker" <Christoph.Voelker at awi.de>
Date: Wednesday, September 22, 2010 12:57 am
Subject: Re: [MITgcm-support] Increasing the number of grid points
To: mitgcm-support at mitgcm.org

<div style="font-family: 'Times New Roman'; font-size: 16px; "><div>Dear Joe,</div><div><br /></div><div>the file that you mention contains the topography for the experiment, i.e. one water depth for each grid point. No wonder it does not fit anymore after changing the number of grid points. You need to provide a new one with the right number of grid points. </div><div>Do you have access to matlab? Then I'd read in the old file like</div><div><br /></div><div>fid = fopen('bathyPolR.bin','r','ieee-be'); % files are written in big-endian byte ordering</div><div>a = fread(fid,'real*8');   % read in file contents either as double precision binary (real*8) </div><div>                                     % or as single precision (real*4); check with which way you</div><div>                                     % get the right number of grid points</div><div>fclose(fid);</div><div>a = reshape(a,[nx,ny]); % the grid is written as one long vector with nx*ny elements;</div><div>                                     % you have to make is a nx by ny matrix</div><div><br /></div><div>and then think how to modify it, and write a new file using the same methods.</div><div><br /></div><div>Cheers, Christoph</div><div><br /></div><div>On 21.09.10, <b class="name">Joseph Schoonover </b> &lt;js08s at fsu.edu&gt; wrote:</div><blockquote cite="mid:f749ae1322e01.4c98e106 at fsu.edu" class="iwcQuote" style="border-left: 1px solid #00F; padding-left: 13px; margin-left: 0;" type="cite"><div class="mimepart text plain">To whom it may concern,<br /><br />I am working off of the rotating_tank experiment under ../verification.  I have been able to run the model with default parameters with no problem. Now, I would like to increase the tank size without losing resolution, i.e., I need to increase the number of grid points. I've gone into '../input/size.h' and changed sNy to 60. Upon compilation I receive an error referring to the binary 'bathyPolR.bin'<br /><br /> I'm not too familiar with how binary files work, in general, but I know that I need to modify the file 'bathyPolR.bin' in order to increase the number of grid points.<br /><br /> Given that I want to keep the same precision, how can I go about modifying 'bathyPolR.bin' ?<br /><br />Thanks in advance,<br />Joe Schoonover<br /><br />Undergraduate Researcher, GFDI<br /><br />_______________________________________________<br />MITgcm-support mailing list<br />MITgcm-support at mitgcm.org<br /><a href="http://mitgcm.org/mailman/listinfo/mitgcm-support" target="1">http://mitgcm.org/mailman/listinfo/mitgcm-support</a><br /></div></blockquote></div>

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