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revision 1.1836 by jmc, Mon Mar 4 19:08:25 2013 UTC revision 1.1840 by jmc, Sat Mar 9 22:09:26 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o verification, AD & TLM output:
8      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
9        additions and multiplications which affect results at machine truncation
10        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
11        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
12        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
13        digits of matching.
14    o pkg/seaice:
15       modify lsr-algorithm so that it vectorizes AND converges by using a
16       "zebra" method: split vector loop into two with step size 2; this
17       solves a general convergence problem for the JFNK solver on a vector
18       computer. It has the potential to even improve convergence for
19       non-vector machines, but it does change the results so it is turned
20       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
21       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
22    
23    checkpoint64e (2013/03/05)
24    o pkg/ecco and several verification experiments:
25       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
26       from ecco package, and revert to unified routine in model/src/
27       Adjust verification experiments accordingly, especially gloal_oce_llc90
28       Should conclude long-standing work by Gael to reconsile the_main_loop with
29       ECCO and will enable OpenAD's revolve loop in ECCO setup.
30  o pkg/generic_advdiff:  o pkg/generic_advdiff:
31    - implement compressible flow method for multi-dim advection (similar to    - implement compressible flow method for multi-dim advection (similar to
32      gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since      gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
# Line 30  o pkg/seaice: reorganize seaice_lsr.F to Line 53  o pkg/seaice: reorganize seaice_lsr.F to
53    - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS    - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
54    - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner    - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
55  o OpenAD support  o OpenAD support
56    Reorganize S/R call for overall time-stepping loop to facilitate     Reorganize S/R call for overall time-stepping loop to facilitate
57    OpenAD revolve loop replacement     OpenAD revolve loop replacement
58    (new S/R main_do_loop.F)     (new S/R main_do_loop.F)
59  o model/src:  o model/src:
60    - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;    - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
61    - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R    - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
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