[MITgcm-devel] [MITgcm-cvs] MITgcm/doc CVS Commit

[Jean-Michel Campin]

Hi Martin,

The AD results of experiment global_ocean.cs32x15.seaice have changed
(6 digits for AD gradient) but results/output_adm.seaice.txt has not been 
updated yet.
Do you plan to do this today ? or do you prefer me to do it ?

Cheers,
Jean-Michel

On Wed, Jul 16, 2014 at 08:03:54AM -0400, Martin Losch wrote:
> Update of /u/gcmpack/MITgcm/doc
> In directory forge:/tmp/cvs-serv22885/doc
> 
> Modified Files:
> 	tag-index 
> Log Message:
> Add this:
> o pkg/seaice: more clean up
>   - rename TAF common block tapes to be more consistent and remove
>     unnecessary duplicates
>   - add store directives to remove more recomputations, 
>     but use smaller tapes (and adjust keys) when
>     SEAICE_LSR_ADJOINT_ITER is undefined. The idea behind this flag is
>     to reduce the memory footprint when the adjoint of the LSR is not
>     required. As of now, defining the flag SEAICE_LSR_ADJOINT_ITER
>     increase 4 common block tapes for 2D field by a factor of
>     SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h). For experiment
>     offline_exf_seaice, this means on a linux box with gfortran nearly
>     a factor of 10 (but keep in mind there is mostly seaice code
>     in this experiment)
>     > size mitgcmuv_ad
>     text    data        bss     dec 	   hex	
>     5100659 1216  220458952  225560827  d71c8fb	
>     5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
>     but only a moderate increase of 36% for global_ocean.cs32x15
>     text    data        bss     dec        hex
>     6695027 1648 1014578664 1021275339 3cdf6ccb
>     6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
>   - note: there are still recomputations in global_ocean.cs32x15 and
>     the gradient agreement changes (gets a little worse)
>   - in general, the AD gradients still are wrong
> 
> 
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