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revision 1.966 by jmc, Fri Mar 7 19:25:48 2008 UTC revision 1.1012 by jmc, Sat Aug 2 23:12:23 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o exch2:
8      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
9      - no longer depend on the order sequence (N,S,E,W).
10      - 3rd exchange no longer needed (tested with 24 tiles).
11      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
12      - exch_UV_A-grid readily available (but not yet tested).
13      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
14      (both are no longer needed) in exch_uv: no effect in forward run; but
15       get truncation error differences with adjoint exch.
16    o exch2:
17     - change index-bounds storage (moved from target to local tile,
18       more intuitive this way) ; rename/remove some variables.
19     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
20    
21    checkpoint61a
22    o exch2/matlab-topology-generator:
23      fix bug in index bounds for N-S internal exchange (hard to tell if this
24      had any effect on the solution).
25    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
26      is exceeded
27    o testreport: modify syntax of awk, so that it works also with
28      awk, and not only with nawk and gawk
29    
30    checkpoint61
31    o autodiff
32      Change default for TAF usage by removing argument '-nonew_arg'
33      This changes TAF subroutine argument list (ordering of active var.)
34      Omission of this flag leads to incompatibility w.r.t. TAMC
35      To restore TAMC-compatibility, need following modifs:
36      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
37      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
38      Tested TAF version is 1.9.22
39      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
40    
41    checkpoint60
42    --->>> This is the last checkpoint for which generating the adjoint
43    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
44    --->>> by default.
45    --->>> Future checkpoints will ommit this flag by default.
46    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
47    o pkg/grdchk: Add gradient check to etan0 perturbations.
48    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
49    o pkg/autodiff: more flexibility in zeroadj.
50      model/src: modifying do_oceanic_phys.F accordingly.
51    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
52    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
53      special setup of gmredi for which the adjoint is stable
54      enough for parameter optimization.
55    o bridging the gap between eddy stress and GM.
56      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
57          along with a change in CPP option (now ALLOW_EDDYPSI).
58      -> when using GM w/ GM_AdvForm:
59          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
60          is applied either in the tracer Eq. or in momentum Eq.
61          depending on data.gmredi (intro. GM_InMomAsStress).
62      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
63      The key modifications are in model/src/taueddy_external_forcing.F
64      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
65    
66    checkpoint59r
67    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
68      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
69      fix option to read coriolis(@ cell-corner) from files with CS-grid.
70    o pkg/mnc: add some attributes to standard 1D-coordinate variables
71    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
72      mass points, when using mnc for output
73      - add runtime parameter (missing_value, missing_value_int) to override
74        default (which is the value of getcon('UNDEF'))
75    o pkg/mnc: prepare mnc for the actual use of missing values with the
76      diagnostics package: small fix in mnc_cw_readwrite.template and more
77      initialisation of never used fields
78      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
79      versions
80    o pkg/thsice/thsice_ini_vars.F added default initial values so that
81      thermodynamics sea ice solver does not blow up when some initial fields
82      are missing.
83    o move from external_forcing_surf.F to ini_forcing.F
84      the p-coord. hack consisting in using pLoad to set phi0surf ;
85      update output of tutorial_global_oce_in_p (affected @ truncation level).
86    o Freshen up a bit hs94.1x64x5, notably:
87      remove rotationPeriod and tRef=5*0. (adjoint only), and add
88      exactConserv=.TRUE.
89    o pkg/generic_advdiff:
90      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
91      applies to files where Temperature & Salinity 2nd Order moments are used.
92    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
93      this uses a dynamically allocated internal state data structure
94      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
95      and requires a fortran 90 compiler
96    
97    checkpoint59q
98    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
99       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
100    o Refresh tutorial_global_oce_biogeo, notably:
101      - change bathymetry (put back seamounts in ACC, use hFacs)
102      - change EOS (POLY3 --> JMD95Z)
103      - use Bryan-Lewis vertical diffusivity
104      - use multidimensional advection
105      - remove old virtual virtual in dic pkg, now done through ptracer pkg
106      - change a couple of parameters in dic pkg
107    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
108    o pkg/obcs: change default to OBCSfixTopo = .true.,
109      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
110      - replace "debugMode" with "debugLevel .GE. debLevB"
111    o implementation of TAF directives for gchem,cfc,dic
112    o remove "exp5" (replaced by tutorial_deep_convection).
113    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
114      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
115      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
116      --> changes results in exp4, seaice_obcs
117    o tutorial_deep_convection :
118      update the set-up and increase resolution and domain size ; start
119      from pseudo initial conditions = output at t=120mn in order to see
120      something happening when running testreport.
121    o pkg/seaice: add os7mp as an advection scheme
122                  add check for advection schemes
123                  add a flag for restoring T and S underneath sea ice
124    o pkg/my82: add netcdf-support and diagnostics
125    o thsice pkg:
126      - Now hsMax limits snow height by turning it into ice following
127        flooding scheme (and now conserving energy)
128      - Slight rewriting of the formula in thsice_calc_thick.F
129      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
130      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
131    
132    checkpoint59p
133    o gchem / dic / cfc :
134      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
135      - add new parameter files: "data.dic" & "data.cfc" ;
136      - various re-arrangement in initialisation & header file ;
137      - fix tutorial_global_oce_biogeo for multi-threaded test.
138    o pkg/dic: test for "pickup_dic" file when restarting ;
139      if no pickup-file, can restart with a re-initialised pH (same as it did
140      before) providing pickupStrictlyMatch is set to False.
141    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
142      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
143    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
144      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
145    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
146     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
147       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
148    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
149       scheme to use for vorticty-term ;
150     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
151       (with default selectVortScheme, return to original discretisation)
152     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
153    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
154    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
155      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
156      also fix diagnostics VISCAHW & VISCA4W.
157    
158  checkpoint59o  checkpoint59o
159  o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).  o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
160  o change the loop ordering in most gad_*_adv_x.F to improve vectorization:  o change the loop ordering in most gad_*_adv_x.F to improve vectorization:

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