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revision 1.859 by jmc, Fri Aug 17 20:51:27 2007 UTC revision 1.945 by mlosch, Thu Jan 24 18:41:16 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 pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
8      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
9      subroutines (which could be generated from a template, because they are
10      almost identical), for now they are included in obcs_prescribe_read.F for
11      simplicity
12    o pkg/exf:
13      - add a little more diagnostic to exf_interp_read (in analogy to
14        mds_read_field, can be turned off with debugLevel < debugLevA=1)
15      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
16        ugly but fast by unrolling short inner loops, inserting a unroll=8
17        directive in routine lagran, and splitting a loop and making do while the
18        outermost loop (the latter requires the intoduction of index arrays)
19    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
20    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
21      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
22    o verification/seaice_obcs: updated for restart test and latest options
23    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
24      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
25      for now this is only available for the C-grid code and also within
26      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
27    
28    checkpoint59m
29    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
30      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
31    o gad_som : fix flux output (& diagnostics) to have same units as other  
32      advection scheme fluxes (was previously multiplied by deltaT).  
33    o added verification/seaice_obcs both to test seaice open boundaries
34      and to provide an example matlab scrpt for generating them
35    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
36    o pkg/salt_plume: clean up salt_plume_frac.F to
37      remove redundancy in PlumeMethod 1 and 4
38    o pkg/kpp: added saltplume diagnostics
39    o pkg/obcs and pkg/seaice:
40      - do not set uice and vice to zero when OB*icefile are unspecified
41      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
42      - moved seaice tracer obcs after call to seaice_growth
43    o pkg/salt_plume: added various options for salt plume depth
44      criterion and for vertical distribution of the salt
45    
46    checkpoint59l
47    o pkg/ptracers: new version of ptracers pickup:
48      read meta file and write only fields which are needed to restart.
49      ( same logic as main pickup file ; also using pickupStrictlyMatch )
50    o pkg/seaice:
51      - add timescale for melting due to warm mixed layer as a means of
52        setting SEAICE_availHeatFrac more conveniently
53      - add a CPP-flag/runtime parameter check for flooding algorithm
54      - reformulated availHeat in seaice_growth.F to be independent of AREA
55    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
56      unit changes
57    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
58    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
59      SX vector computer.
60    o pkg/seaice:
61      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
62        seaice forcing fields can now be read only through pkg/exf
63      - removed some unused halos
64    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
65    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
66      or U/VICE from U/VWIND before computing U/VSTRESS
67    
68    checkpoint59k
69    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
70      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
71    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
72      all experiments pass when compile with un-initialised var. checking option.
73    o added pkg/salt_plume
74    o script to test restart (for now, in MITgcm_contrib/jmc_script)
75    o pkg/seaice: new read/write pickup version.
76      read meta file and write only fields which are needed to restart.
77      ( same logic as main pickup file ; also using pickupStrictlyMatch )
78    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
79    o lab_sea.hb87: modify the domain & update output.hb87.txt :
80      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
81      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
82      process. Fixed here by closing the domain at the Northern boundary.
83    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
84    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
85      a set of consecutive levels in/from a 3-D array.
86    o pkg/ptracers:
87      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
88      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
89    
90    checkpoint59j
91    o in pkgs: dic, obcs, offline, rbcs:
92      standard way to compute coeff. for time interpolation between 2 time reccords
93      which retains full precision (& make results less dependent on compiler).
94      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
95    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
96      packages instead of reading ice cover and wind speed separately
97    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
98     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
99      to allow to compile customized code before the update)
100    o cleaning-up:
101      - fix CPP instruction syntax in pkg/obcs
102      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
103        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
104      - fix some threads issue in IO parts.
105    o pkg/dic:
106      - add tons of "_d 0" (--> much better testreports !)
107       and then update outputs of tutorial_global_oce_biogeo
108    o pkg/mom_fluxform:
109      add a special version of momentum advection intended to conserve momentum
110      next to a bathymetry step or a coastline edge. (default = off = #undef)
111    o new read/write pickup version:
112      - for now, only implemented for main (mdsio) pickup file.
113      - write out only what is needed to restart; merge pickup_nh , pickup_ph
114        and main pickup together.
115      - read meta file; read only what is needed to restart; stop if a field
116        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
117        if it make sense (even if the restart is not perfect).
118      - if no meta file, assume that pickup to read corresponds exactly to
119        a pickup that would currently be written.
120      - read pickup written in the old format (until checkpoint59i) if it
121        recognizes an old meta file (no field-list).
122      - add a meta file in exp. which starts from a pickup: 2 cases:
123        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
124         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
125        b) a meta file describing the content of the associated pickup file
126         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
127    o pkg/mdsio & pkg/rw:
128      - new routine to read a meta file ; new set of routine to read
129        Multiple-fields file (with meta file).
130    o added open boundary conditions capability for seaice
131        HSNOW, HSALT, UICE, and VICE
132    
133    checkpoint59i
134    o adjoint:
135      * fix multiDimAdvection adjoint
136        (partial recomputation problem by TAF for fVerT(:,:,kDown)
137        and comlev1 size definition (maxpass vs. max. number of tracers)
138      * verification/global_ocean.90x45x15 adjoint now tests
139        NLFS and multiDimAdvection using DST3 (=30)
140      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
141    o pkg/kpp: add "_d 0" to real constant (if missing);
142      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
143      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
144    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
145      for internal parameters related to restart process (formerly from PARAMS.h)
146      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
147    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
148      as argument. (only atm2d & obcs write_pickup have not yet been updated)
149    o pkg/monitor:
150      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
151      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
152      - account for deep Atmosphere factor and density factor (anelastic)
153    o added open boundary conditions capability for seaice HEFF and AREA
154    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
155      thermodynamics
156      - requires a little reorganization, which affects the testreport results
157        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
158        so that now the conservative form is tested
159      - add a few comments
160    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
161    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
162    o add new diagnostics to seaice: advective, diffusive fluxes (only for
163      multidim-advection, for scheme 2 they are not filled) and transports,
164      thermodynamic growth rates
165    o change units of EmPmR (inside the code, + within coupling interface)
166      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
167      Affects results @ truncation level (cg2d match) and update output of
168       experiments: lab_sea(6), global_ocean.90x40x15(10),
169      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
170      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
171      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
172      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
173    
174    checkpoint59h
175    o pkg/exf:
176      - improve vectorization by moving if-statement out of loops in
177        exf_mapfields, exf_radiation
178      - exf_bulkformulae.F: introduce 2D fields and vectorize code
179    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
180    o testreport:
181      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
182        monitor & update offline_exf_seaice exp. output.
183      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
184    o pkg/seaice:
185      - bug fix in the evp solver: boundary conditions were affected be
186        masking of zMax/zMin (changes results)
187      - minor bug fix in boundary conditions in seaice_calc_strainrates
188        (changes results for no_slip)
189      - seaice_lsr.F: make interpolation of eta dependent on boundaries
190      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
191      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
192        stress formulation and no-slip boundary conditions
193    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
194      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
195    o pkg/seaice: a first HSALT time stepping equation has been checked in
196    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
197      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
198      without requiring DO-IF statements
199    o pkg/thsice:
200      use continuous power-law function for partition of energy between lateral
201      melting/freezing and thinning/thickening ; old code using step function
202      still available with #undef THSICE_FRACEN_POWERLAW
203      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
204    o testreport: change AD testing : check against results/output_adm.txt
205      using same scripts as for forward test.
206    
207    checkpoint59g
208    o adjoint testing: in preparation for changing testreport:
209      - output format: cost and grad written on separated lines
210      - ad output results in directory "results" (instead of "results_ad")
211    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
212    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
213    o pkg/ecco: allow user defined cost function contributions
214    o testreport:
215      Allow to choose (per experiment) the list of tested output variables
216       and the main variable (used to issue a pass/FAIL ) ;
217      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
218      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
219      Also modify printing of summary:
220       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
221       b) echo the list of tested variables in the individual summary.txt of
222          each experiment.
223    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
224      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
225      (but still depend on the tile decompostion of the domain).
226    o pkg/seaice: change a discretization detail to make the B-grid code
227      "more symmetric". This change is likely to remove all "ridges/leads" that
228      where quasi-aligned with the grid in B-grid solutions. It may also be
229      the solution to the stress coupling issues with the B-grid.
230    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
231      remove .cvsignore from input dir. (since testreport no longer run here).
232    o pkg/thsice:
233     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
234     - fix reshaping of sea-ice just after advection:
235       melt all the ice only if ice-volume is too small.
236     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
237       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
238     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
239    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
240      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
241    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
242      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
243      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
244      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
245      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
246      -> update output.txt
247    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
248     this affects truncation error: -> update output.txt of exp:
249      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
250      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
251    
252    checkpoint59f
253    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
254    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
255      a bounded range (in forward mode)
256    o pkg/ecco, ctrl, autodiff and mom_common:
257     internal parameter controls, completements of implementations
258  o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.  o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
259    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
260      (not seem any difference in testing results).
261  o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains  o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
262     at face corners.     at face corners.
263  o pkg/generic_advdiff:  o pkg/generic_advdiff:
# Line 225  o in FFIELDS.h: Line 478  o in FFIELDS.h:
478       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
479  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
480  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
481      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
482        are no longer updating the vertical diffusivity array
483        (passed as argument) but are (re-) setting those arrays.
484  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
485    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
486      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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