[MITgcm-support] How to calculate the RAM requirement?

Tue May 15 08:53:23 EDT 2007

Hi all,  

To contribute to the confusion :) A long time ago I got a formula (from Chris) 
size=nx*ny*nz*8*50 
(grid points * 8 bits * 50 fields) 
That would make about 10 GB. Perhaps it should be 100 fields in the new model 
and with ice as suggested by Dimitris. 

Göran 

On 2007-05-15, at 05:14, Dimitris Menemenlis wrote: 
> Brainf, I am running a 1-CPU 200x160x50 experiment, with pkg/exf and 
pkg/seaice 
> and memory requirement is 1.2 GB, that is, approximately 750 Bytes per grid 
> point.  So a very rough guess is that your 1440x720x24 domain may require 
> approximately 19 GB to run.  Dimitris 
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