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revision 1.921 by dimitri, Wed Dec 5 16:56:14 2007 UTC revision 1.1013 by jmc, Tue Aug 5 15:58:18 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61b
8    o exch2:
9      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
10      - no longer depend on the order sequence (N,S,E,W).
11      - 3rd exchange no longer needed (tested with 24 tiles).
12      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
13      - exch_UV_A-grid readily available (but not yet tested).
14      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
15      (both are no longer needed) in exch_uv: no effect in forward run; but
16       get truncation error differences with adjoint exch.
17    o exch2:
18     - change index-bounds storage (moved from target to local tile,
19       more intuitive this way) ; rename/remove some variables.
20     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
21    
22    checkpoint61a
23    o exch2/matlab-topology-generator:
24      fix bug in index bounds for N-S internal exchange (hard to tell if this
25      had any effect on the solution).
26    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
27      is exceeded
28    o testreport: modify syntax of awk, so that it works also with
29      awk, and not only with nawk and gawk
30    
31    checkpoint61
32    o autodiff
33      Change default for TAF usage by removing argument '-nonew_arg'
34      This changes TAF subroutine argument list (ordering of active var.)
35      Omission of this flag leads to incompatibility w.r.t. TAMC
36      To restore TAMC-compatibility, need following modifs:
37      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
38      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
39      Tested TAF version is 1.9.22
40      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
41    
42    checkpoint60
43    --->>> This is the last checkpoint for which generating the adjoint
44    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
45    --->>> by default.
46    --->>> Future checkpoints will ommit this flag by default.
47    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
48    o pkg/grdchk: Add gradient check to etan0 perturbations.
49    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
50    o pkg/autodiff: more flexibility in zeroadj.
51      model/src: modifying do_oceanic_phys.F accordingly.
52    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
53    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
54      special setup of gmredi for which the adjoint is stable
55      enough for parameter optimization.
56    o bridging the gap between eddy stress and GM.
57      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
58          along with a change in CPP option (now ALLOW_EDDYPSI).
59      -> when using GM w/ GM_AdvForm:
60          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
61          is applied either in the tracer Eq. or in momentum Eq.
62          depending on data.gmredi (intro. GM_InMomAsStress).
63      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
64      The key modifications are in model/src/taueddy_external_forcing.F
65      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
66    
67    checkpoint59r
68    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
69      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
70      fix option to read coriolis(@ cell-corner) from files with CS-grid.
71    o pkg/mnc: add some attributes to standard 1D-coordinate variables
72    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
73      mass points, when using mnc for output
74      - add runtime parameter (missing_value, missing_value_int) to override
75        default (which is the value of getcon('UNDEF'))
76    o pkg/mnc: prepare mnc for the actual use of missing values with the
77      diagnostics package: small fix in mnc_cw_readwrite.template and more
78      initialisation of never used fields
79      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
80      versions
81    o pkg/thsice/thsice_ini_vars.F added default initial values so that
82      thermodynamics sea ice solver does not blow up when some initial fields
83      are missing.
84    o move from external_forcing_surf.F to ini_forcing.F
85      the p-coord. hack consisting in using pLoad to set phi0surf ;
86      update output of tutorial_global_oce_in_p (affected @ truncation level).
87    o Freshen up a bit hs94.1x64x5, notably:
88      remove rotationPeriod and tRef=5*0. (adjoint only), and add
89      exactConserv=.TRUE.
90    o pkg/generic_advdiff:
91      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
92      applies to files where Temperature & Salinity 2nd Order moments are used.
93    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
94      this uses a dynamically allocated internal state data structure
95      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
96      and requires a fortran 90 compiler
97    
98    checkpoint59q
99    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
100       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
101    o Refresh tutorial_global_oce_biogeo, notably:
102      - change bathymetry (put back seamounts in ACC, use hFacs)
103      - change EOS (POLY3 --> JMD95Z)
104      - use Bryan-Lewis vertical diffusivity
105      - use multidimensional advection
106      - remove old virtual virtual in dic pkg, now done through ptracer pkg
107      - change a couple of parameters in dic pkg
108    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
109    o pkg/obcs: change default to OBCSfixTopo = .true.,
110      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
111      - replace "debugMode" with "debugLevel .GE. debLevB"
112    o implementation of TAF directives for gchem,cfc,dic
113    o remove "exp5" (replaced by tutorial_deep_convection).
114    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
115      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
116      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
117      --> changes results in exp4, seaice_obcs
118    o tutorial_deep_convection :
119      update the set-up and increase resolution and domain size ; start
120      from pseudo initial conditions = output at t=120mn in order to see
121      something happening when running testreport.
122    o pkg/seaice: add os7mp as an advection scheme
123                  add check for advection schemes
124                  add a flag for restoring T and S underneath sea ice
125    o pkg/my82: add netcdf-support and diagnostics
126    o thsice pkg:
127      - Now hsMax limits snow height by turning it into ice following
128        flooding scheme (and now conserving energy)
129      - Slight rewriting of the formula in thsice_calc_thick.F
130      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
131      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
132    
133    checkpoint59p
134    o gchem / dic / cfc :
135      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
136      - add new parameter files: "data.dic" & "data.cfc" ;
137      - various re-arrangement in initialisation & header file ;
138      - fix tutorial_global_oce_biogeo for multi-threaded test.
139    o pkg/dic: test for "pickup_dic" file when restarting ;
140      if no pickup-file, can restart with a re-initialised pH (same as it did
141      before) providing pickupStrictlyMatch is set to False.
142    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
143      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
144    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
145      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
146    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
147     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
148       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
149    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
150       scheme to use for vorticty-term ;
151     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
152       (with default selectVortScheme, return to original discretisation)
153     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
154    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
155    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
156      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
157      also fix diagnostics VISCAHW & VISCA4W.
158    
159    checkpoint59o
160    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
161    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
162      move a few statemens out the main loop into separate loops
163    o pkg/shelfice:
164      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
165        (kg/m^2/s), does not break tests, because in verification/isomip,
166        rhoConstFresh=rhoConst (by accident)
167      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
168      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
169        new file model/src/seawater.F, so that they are available for all pkgs.
170      - convert potential temperature into in-situ temperature. This changes the
171        isomip tests => update tests
172    o add a flag writePickupAtEnd (default=true) to be able to suppress
173      writing a pickup at the last timestep
174    o tools/mpack-1.6 :
175      - disable automake (not working) and autoconf (not needed).
176      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
177        also cleaner with much less compilation warnings.
178    o pkg/profiles:
179      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
180      (for "less than 32 characters name" compiler requirement)
181    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
182      conditions that have a different sampling frequency than S/T/U/V obcs
183    o pkg/diagnostics (stats-diags):
184      - fix global Min/Max in case 1 processor get only empty tiles
185    o genmake2: replace (4 times)
186         make genmake_tc_1.o >> genmake_warnings 2>&1
187      with
188         COMM="$CC $CFLAGS -c genmake_tc_1.c"
189         echo $COMM >> genmake_warnings
190         $COMM >> genmake_warnings 2>&1
191      to make genmake2 always see the value of CC as specified in the optfile.
192    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
193      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
194      - modify verification advect_cs test to test SOM-advection on CS-grid.
195    o pkg/ctrl:
196      - Rewrite of ctrl_map_ini_ecco.F,
197        introducing a generic routine (ctrl_map_ini_gen.F).
198      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
199    
200    checkpoint59n
201    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
202      number in dedicate array "hdiag":
203      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
204        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
205      - many small changes (integer format) for large number of diagnostics
206      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
207        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
208    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
209      usingSphericalGrid, this allows to define the rotated grid coordinates
210      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
211      geographical coordinates according to the inverse of the rotation defined
212      by the Euler angles, so that Coriolis parameter and online-interpolation by
213      exf works with the geographical coordinates on XC/YC/XG/YG.
214      Naturally, this feature does not work with all packages, so some
215      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
216      profiles), because there the coordinates are assumed to be regular
217      spherical grid coordinates.
218    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
219      - introduce isopycnal diffusion coefficient control.
220    o tools/adjoint_options:
221      - additional control vector components.
222    o pkg/mnc: have mnc create marginally meaning full coordinate variables
223      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
224    o pkg/mypackage:
225      - add example of read/write pickup for state-var ;
226      - add entry points to the main code for state-vars diags & write-pickup.
227    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
228      transitions for useExfYearlyFields
229      - add new subroutine that determines the file to read from for
230        use*YearlyFields = .TRUE. and .FALSE.
231      - add a verification experiment to global_with_exf that tests
232        useExfYearlyFields with USE_EXF_INTERPOLATION defined
233    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
234      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
235      subroutines (which could be generated from a template, because they are
236      almost identical), for now they are included in obcs_prescribe_read.F for
237      simplicity
238    o pkg/exf:
239      - add a little more diagnostic to exf_interp_read (in analogy to
240        mds_read_field, can be turned off with debugLevel < debugLevA=1)
241      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
242        ugly but fast by unrolling short inner loops, inserting a unroll=8
243        directive in routine lagran, and splitting a loop and making do while the
244        outermost loop (the latter requires the intoduction of index arrays)
245    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
246    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
247      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
248    o verification/seaice_obcs: updated for restart test and latest options
249    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
250      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
251      for now this is only available for the C-grid code and also within
252      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
253    
254    checkpoint59m
255    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
256      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
257    o gad_som : fix flux output (& diagnostics) to have same units as other  
258      advection scheme fluxes (was previously multiplied by deltaT).  
259    o added verification/seaice_obcs both to test seaice open boundaries
260      and to provide an example matlab scrpt for generating them
261    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
262    o pkg/salt_plume: clean up salt_plume_frac.F to
263      remove redundancy in PlumeMethod 1 and 4
264    o pkg/kpp: added saltplume diagnostics
265    o pkg/obcs and pkg/seaice:
266      - do not set uice and vice to zero when OB*icefile are unspecified
267      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
268      - moved seaice tracer obcs after call to seaice_growth
269    o pkg/salt_plume: added various options for salt plume depth
270      criterion and for vertical distribution of the salt
271    
272    checkpoint59l
273    o pkg/ptracers: new version of ptracers pickup:
274      read meta file and write only fields which are needed to restart.
275      ( same logic as main pickup file ; also using pickupStrictlyMatch )
276    o pkg/seaice:
277      - add timescale for melting due to warm mixed layer as a means of
278        setting SEAICE_availHeatFrac more conveniently
279      - add a CPP-flag/runtime parameter check for flooding algorithm
280      - reformulated availHeat in seaice_growth.F to be independent of AREA
281    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
282      unit changes
283  o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint  o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
284  o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC  o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
285    SX vector computer.    SX vector computer.
# Line 12  o pkg/seaice: Line 288  o pkg/seaice:
288      seaice forcing fields can now be read only through pkg/exf      seaice forcing fields can now be read only through pkg/exf
289    - removed some unused halos    - removed some unused halos
290  o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP  o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
291  o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting  o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
292    UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.    or U/VICE from U/VWIND before computing U/VSTRESS
293    
294  checkpoint59k  checkpoint59k
295  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
296    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
297  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
298    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
299  o added pkg/salt_plume  o added pkg/salt_plume
300  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
301  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.

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