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revision 1.942 by dimitri, Fri Jan 18 01:38:33 2008 UTC revision 1.1019 by jmc, Sat Aug 30 16:37:48 2008 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint61c
8    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
9      to add mass source/sink of fluid in the interior (3-D generalisation
10      of oceanic real-fresh water flux).
11    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
12    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
13    o new pkg: down_slope
14      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
15      - presently, modify T & S inland (dwnslp_calc_rho.F).
16        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
17      - implementation for ocean in P-coords not tested.
18      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
19    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
20      (to facilitate conversion of oceanic pkg to p-coordinate).
21    o change FIND_RHO to FIND_RHO_2D :
22      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
23    o new pkg: cheapaml
24    
25    checkpoint61b
26    o exch2:
27      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
28      - no longer depend on the order sequence (N,S,E,W).
29      - 3rd exchange no longer needed (tested with 24 tiles).
30      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
31      - exch_UV_A-grid readily available (but not yet tested).
32      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
33      (both are no longer needed) in exch_uv: no effect in forward run; but
34       get truncation error differences with adjoint exch.
35    o exch2:
36     - change index-bounds storage (moved from target to local tile,
37       more intuitive this way) ; rename/remove some variables.
38     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
39    
40    checkpoint61a
41    o exch2/matlab-topology-generator:
42      fix bug in index bounds for N-S internal exchange (hard to tell if this
43      had any effect on the solution).
44    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
45      is exceeded
46    o testreport: modify syntax of awk, so that it works also with
47      awk, and not only with nawk and gawk
48    
49    checkpoint61
50    o autodiff
51      Change default for TAF usage by removing argument '-nonew_arg'
52      This changes TAF subroutine argument list (ordering of active var.)
53      Omission of this flag leads to incompatibility w.r.t. TAMC
54      To restore TAMC-compatibility, need following modifs:
55      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
56      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
57      Tested TAF version is 1.9.22
58      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
59    
60    checkpoint60
61    --->>> This is the last checkpoint for which generating the adjoint
62    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
63    --->>> by default.
64    --->>> Future checkpoints will ommit this flag by default.
65    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
66    o pkg/grdchk: Add gradient check to etan0 perturbations.
67    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
68    o pkg/autodiff: more flexibility in zeroadj.
69      model/src: modifying do_oceanic_phys.F accordingly.
70    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
71    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
72      special setup of gmredi for which the adjoint is stable
73      enough for parameter optimization.
74    o bridging the gap between eddy stress and GM.
75      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
76          along with a change in CPP option (now ALLOW_EDDYPSI).
77      -> when using GM w/ GM_AdvForm:
78          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
79          is applied either in the tracer Eq. or in momentum Eq.
80          depending on data.gmredi (intro. GM_InMomAsStress).
81      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
82      The key modifications are in model/src/taueddy_external_forcing.F
83      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
84    
85    checkpoint59r
86    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
87      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
88      fix option to read coriolis(@ cell-corner) from files with CS-grid.
89    o pkg/mnc: add some attributes to standard 1D-coordinate variables
90    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
91      mass points, when using mnc for output
92      - add runtime parameter (missing_value, missing_value_int) to override
93        default (which is the value of getcon('UNDEF'))
94    o pkg/mnc: prepare mnc for the actual use of missing values with the
95      diagnostics package: small fix in mnc_cw_readwrite.template and more
96      initialisation of never used fields
97      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
98      versions
99    o pkg/thsice/thsice_ini_vars.F added default initial values so that
100      thermodynamics sea ice solver does not blow up when some initial fields
101      are missing.
102    o move from external_forcing_surf.F to ini_forcing.F
103      the p-coord. hack consisting in using pLoad to set phi0surf ;
104      update output of tutorial_global_oce_in_p (affected @ truncation level).
105    o Freshen up a bit hs94.1x64x5, notably:
106      remove rotationPeriod and tRef=5*0. (adjoint only), and add
107      exactConserv=.TRUE.
108    o pkg/generic_advdiff:
109      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
110      applies to files where Temperature & Salinity 2nd Order moments are used.
111    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
112      this uses a dynamically allocated internal state data structure
113      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
114      and requires a fortran 90 compiler
115    
116    checkpoint59q
117    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
118       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
119    o Refresh tutorial_global_oce_biogeo, notably:
120      - change bathymetry (put back seamounts in ACC, use hFacs)
121      - change EOS (POLY3 --> JMD95Z)
122      - use Bryan-Lewis vertical diffusivity
123      - use multidimensional advection
124      - remove old virtual virtual in dic pkg, now done through ptracer pkg
125      - change a couple of parameters in dic pkg
126    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
127    o pkg/obcs: change default to OBCSfixTopo = .true.,
128      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
129      - replace "debugMode" with "debugLevel .GE. debLevB"
130    o implementation of TAF directives for gchem,cfc,dic
131    o remove "exp5" (replaced by tutorial_deep_convection).
132    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
133      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
134      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
135      --> changes results in exp4, seaice_obcs
136    o tutorial_deep_convection :
137      update the set-up and increase resolution and domain size ; start
138      from pseudo initial conditions = output at t=120mn in order to see
139      something happening when running testreport.
140    o pkg/seaice: add os7mp as an advection scheme
141                  add check for advection schemes
142                  add a flag for restoring T and S underneath sea ice
143    o pkg/my82: add netcdf-support and diagnostics
144    o thsice pkg:
145      - Now hsMax limits snow height by turning it into ice following
146        flooding scheme (and now conserving energy)
147      - Slight rewriting of the formula in thsice_calc_thick.F
148      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
149      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
150    
151    checkpoint59p
152    o gchem / dic / cfc :
153      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
154      - add new parameter files: "data.dic" & "data.cfc" ;
155      - various re-arrangement in initialisation & header file ;
156      - fix tutorial_global_oce_biogeo for multi-threaded test.
157    o pkg/dic: test for "pickup_dic" file when restarting ;
158      if no pickup-file, can restart with a re-initialised pH (same as it did
159      before) providing pickupStrictlyMatch is set to False.
160    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
161      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
162    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
163      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
164    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
165     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
166       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
167    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
168       scheme to use for vorticty-term ;
169     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
170       (with default selectVortScheme, return to original discretisation)
171     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
172    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
173    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
174      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
175      also fix diagnostics VISCAHW & VISCA4W.
176    
177    checkpoint59o
178    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
179    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
180      move a few statemens out the main loop into separate loops
181    o pkg/shelfice:
182      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
183        (kg/m^2/s), does not break tests, because in verification/isomip,
184        rhoConstFresh=rhoConst (by accident)
185      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
186      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
187        new file model/src/seawater.F, so that they are available for all pkgs.
188      - convert potential temperature into in-situ temperature. This changes the
189        isomip tests => update tests
190    o add a flag writePickupAtEnd (default=true) to be able to suppress
191      writing a pickup at the last timestep
192    o tools/mpack-1.6 :
193      - disable automake (not working) and autoconf (not needed).
194      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
195        also cleaner with much less compilation warnings.
196    o pkg/profiles:
197      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
198      (for "less than 32 characters name" compiler requirement)
199    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
200      conditions that have a different sampling frequency than S/T/U/V obcs
201    o pkg/diagnostics (stats-diags):
202      - fix global Min/Max in case 1 processor get only empty tiles
203    o genmake2: replace (4 times)
204         make genmake_tc_1.o >> genmake_warnings 2>&1
205      with
206         COMM="$CC $CFLAGS -c genmake_tc_1.c"
207         echo $COMM >> genmake_warnings
208         $COMM >> genmake_warnings 2>&1
209      to make genmake2 always see the value of CC as specified in the optfile.
210    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
211      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
212      - modify verification advect_cs test to test SOM-advection on CS-grid.
213    o pkg/ctrl:
214      - Rewrite of ctrl_map_ini_ecco.F,
215        introducing a generic routine (ctrl_map_ini_gen.F).
216      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
217    
218    checkpoint59n
219    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
220      number in dedicate array "hdiag":
221      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
222        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
223      - many small changes (integer format) for large number of diagnostics
224      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
225        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
226    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
227      usingSphericalGrid, this allows to define the rotated grid coordinates
228      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
229      geographical coordinates according to the inverse of the rotation defined
230      by the Euler angles, so that Coriolis parameter and online-interpolation by
231      exf works with the geographical coordinates on XC/YC/XG/YG.
232      Naturally, this feature does not work with all packages, so some
233      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
234      profiles), because there the coordinates are assumed to be regular
235      spherical grid coordinates.
236    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
237      - introduce isopycnal diffusion coefficient control.
238    o tools/adjoint_options:
239      - additional control vector components.
240    o pkg/mnc: have mnc create marginally meaning full coordinate variables
241      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
242    o pkg/mypackage:
243      - add example of read/write pickup for state-var ;
244      - add entry points to the main code for state-vars diags & write-pickup.
245    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
246      transitions for useExfYearlyFields
247      - add new subroutine that determines the file to read from for
248        use*YearlyFields = .TRUE. and .FALSE.
249      - add a verification experiment to global_with_exf that tests
250        useExfYearlyFields with USE_EXF_INTERPOLATION defined
251    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
252      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
253      subroutines (which could be generated from a template, because they are
254      almost identical), for now they are included in obcs_prescribe_read.F for
255      simplicity
256    o pkg/exf:
257      - add a little more diagnostic to exf_interp_read (in analogy to
258        mds_read_field, can be turned off with debugLevel < debugLevA=1)
259      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
260        ugly but fast by unrolling short inner loops, inserting a unroll=8
261        directive in routine lagran, and splitting a loop and making do while the
262        outermost loop (the latter requires the intoduction of index arrays)
263  o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice  o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
264  o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver  o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
265    http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html    http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html

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