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revision 1.856 by dimitri, Mon Aug 6 19:36:53 2007 UTC revision 1.946 by dimitri, Fri Jan 25 11:23:06 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/exf: rewrite of exf_getffieldrec.F to properly deal with year
8      transitions for useExfYearlyFields
9    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
10      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
11      subroutines (which could be generated from a template, because they are
12      almost identical), for now they are included in obcs_prescribe_read.F for
13      simplicity
14    o pkg/exf:
15      - add a little more diagnostic to exf_interp_read (in analogy to
16        mds_read_field, can be turned off with debugLevel < debugLevA=1)
17      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
18        ugly but fast by unrolling short inner loops, inserting a unroll=8
19        directive in routine lagran, and splitting a loop and making do while the
20        outermost loop (the latter requires the intoduction of index arrays)
21    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
22    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
23      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
24    o verification/seaice_obcs: updated for restart test and latest options
25    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
26      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
27      for now this is only available for the C-grid code and also within
28      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
29    
30    checkpoint59m
31    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
32      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
33    o gad_som : fix flux output (& diagnostics) to have same units as other  
34      advection scheme fluxes (was previously multiplied by deltaT).  
35    o added verification/seaice_obcs both to test seaice open boundaries
36      and to provide an example matlab scrpt for generating them
37    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
38    o pkg/salt_plume: clean up salt_plume_frac.F to
39      remove redundancy in PlumeMethod 1 and 4
40    o pkg/kpp: added saltplume diagnostics
41    o pkg/obcs and pkg/seaice:
42      - do not set uice and vice to zero when OB*icefile are unspecified
43      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
44      - moved seaice tracer obcs after call to seaice_growth
45    o pkg/salt_plume: added various options for salt plume depth
46      criterion and for vertical distribution of the salt
47    
48    checkpoint59l
49    o pkg/ptracers: new version of ptracers pickup:
50      read meta file and write only fields which are needed to restart.
51      ( same logic as main pickup file ; also using pickupStrictlyMatch )
52    o pkg/seaice:
53      - add timescale for melting due to warm mixed layer as a means of
54        setting SEAICE_availHeatFrac more conveniently
55      - add a CPP-flag/runtime parameter check for flooding algorithm
56      - reformulated availHeat in seaice_growth.F to be independent of AREA
57    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
58      unit changes
59    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
60    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
61      SX vector computer.
62    o pkg/seaice:
63      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
64        seaice forcing fields can now be read only through pkg/exf
65      - removed some unused halos
66    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
67    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
68      or U/VICE from U/VWIND before computing U/VSTRESS
69    
70    checkpoint59k
71    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
72      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
73    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
74      all experiments pass when compile with un-initialised var. checking option.
75    o added pkg/salt_plume
76    o script to test restart (for now, in MITgcm_contrib/jmc_script)
77    o pkg/seaice: new read/write pickup version.
78      read meta file and write only fields which are needed to restart.
79      ( same logic as main pickup file ; also using pickupStrictlyMatch )
80    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
81    o lab_sea.hb87: modify the domain & update output.hb87.txt :
82      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
83      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
84      process. Fixed here by closing the domain at the Northern boundary.
85    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
86    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
87      a set of consecutive levels in/from a 3-D array.
88    o pkg/ptracers:
89      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
90      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
91    
92    checkpoint59j
93    o in pkgs: dic, obcs, offline, rbcs:
94      standard way to compute coeff. for time interpolation between 2 time reccords
95      which retains full precision (& make results less dependent on compiler).
96      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
97    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
98      packages instead of reading ice cover and wind speed separately
99    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
100     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
101      to allow to compile customized code before the update)
102    o cleaning-up:
103      - fix CPP instruction syntax in pkg/obcs
104      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
105        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
106      - fix some threads issue in IO parts.
107    o pkg/dic:
108      - add tons of "_d 0" (--> much better testreports !)
109       and then update outputs of tutorial_global_oce_biogeo
110    o pkg/mom_fluxform:
111      add a special version of momentum advection intended to conserve momentum
112      next to a bathymetry step or a coastline edge. (default = off = #undef)
113    o new read/write pickup version:
114      - for now, only implemented for main (mdsio) pickup file.
115      - write out only what is needed to restart; merge pickup_nh , pickup_ph
116        and main pickup together.
117      - read meta file; read only what is needed to restart; stop if a field
118        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
119        if it make sense (even if the restart is not perfect).
120      - if no meta file, assume that pickup to read corresponds exactly to
121        a pickup that would currently be written.
122      - read pickup written in the old format (until checkpoint59i) if it
123        recognizes an old meta file (no field-list).
124      - add a meta file in exp. which starts from a pickup: 2 cases:
125        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
126         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
127        b) a meta file describing the content of the associated pickup file
128         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
129    o pkg/mdsio & pkg/rw:
130      - new routine to read a meta file ; new set of routine to read
131        Multiple-fields file (with meta file).
132    o added open boundary conditions capability for seaice
133        HSNOW, HSALT, UICE, and VICE
134    
135    checkpoint59i
136    o adjoint:
137      * fix multiDimAdvection adjoint
138        (partial recomputation problem by TAF for fVerT(:,:,kDown)
139        and comlev1 size definition (maxpass vs. max. number of tracers)
140      * verification/global_ocean.90x45x15 adjoint now tests
141        NLFS and multiDimAdvection using DST3 (=30)
142      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
143    o pkg/kpp: add "_d 0" to real constant (if missing);
144      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
145      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
146    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
147      for internal parameters related to restart process (formerly from PARAMS.h)
148      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
149    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
150      as argument. (only atm2d & obcs write_pickup have not yet been updated)
151    o pkg/monitor:
152      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
153      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
154      - account for deep Atmosphere factor and density factor (anelastic)
155    o added open boundary conditions capability for seaice HEFF and AREA
156    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
157      thermodynamics
158      - requires a little reorganization, which affects the testreport results
159        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
160        so that now the conservative form is tested
161      - add a few comments
162    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
163    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
164    o add new diagnostics to seaice: advective, diffusive fluxes (only for
165      multidim-advection, for scheme 2 they are not filled) and transports,
166      thermodynamic growth rates
167    o change units of EmPmR (inside the code, + within coupling interface)
168      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
169      Affects results @ truncation level (cg2d match) and update output of
170       experiments: lab_sea(6), global_ocean.90x40x15(10),
171      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
172      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
173      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
174      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
175    
176    checkpoint59h
177    o pkg/exf:
178      - improve vectorization by moving if-statement out of loops in
179        exf_mapfields, exf_radiation
180      - exf_bulkformulae.F: introduce 2D fields and vectorize code
181    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
182    o testreport:
183      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
184        monitor & update offline_exf_seaice exp. output.
185      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
186    o pkg/seaice:
187      - bug fix in the evp solver: boundary conditions were affected be
188        masking of zMax/zMin (changes results)
189      - minor bug fix in boundary conditions in seaice_calc_strainrates
190        (changes results for no_slip)
191      - seaice_lsr.F: make interpolation of eta dependent on boundaries
192      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
193      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
194        stress formulation and no-slip boundary conditions
195    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
196      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
197    o pkg/seaice: a first HSALT time stepping equation has been checked in
198    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
199      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
200      without requiring DO-IF statements
201    o pkg/thsice:
202      use continuous power-law function for partition of energy between lateral
203      melting/freezing and thinning/thickening ; old code using step function
204      still available with #undef THSICE_FRACEN_POWERLAW
205      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
206    o testreport: change AD testing : check against results/output_adm.txt
207      using same scripts as for forward test.
208    
209    checkpoint59g
210    o adjoint testing: in preparation for changing testreport:
211      - output format: cost and grad written on separated lines
212      - ad output results in directory "results" (instead of "results_ad")
213    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
214    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
215    o pkg/ecco: allow user defined cost function contributions
216    o testreport:
217      Allow to choose (per experiment) the list of tested output variables
218       and the main variable (used to issue a pass/FAIL ) ;
219      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
220      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
221      Also modify printing of summary:
222       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
223       b) echo the list of tested variables in the individual summary.txt of
224          each experiment.
225    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
226      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
227      (but still depend on the tile decompostion of the domain).
228    o pkg/seaice: change a discretization detail to make the B-grid code
229      "more symmetric". This change is likely to remove all "ridges/leads" that
230      where quasi-aligned with the grid in B-grid solutions. It may also be
231      the solution to the stress coupling issues with the B-grid.
232    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
233      remove .cvsignore from input dir. (since testreport no longer run here).
234    o pkg/thsice:
235     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
236     - fix reshaping of sea-ice just after advection:
237       melt all the ice only if ice-volume is too small.
238     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
239       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
240     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
241    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
242      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
243    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
244      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
245      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
246      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
247      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
248      -> update output.txt
249    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
250     this affects truncation error: -> update output.txt of exp:
251      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
252      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
253    
254    checkpoint59f
255    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
256    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
257      a bounded range (in forward mode)
258    o pkg/ecco, ctrl, autodiff and mom_common:
259     internal parameter controls, completements of implementations
260    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
261    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
262      (not seem any difference in testing results).
263    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
264       at face corners.
265    o pkg/generic_advdiff:
266     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
267      loop range indices for computing vertical advection tendency
268      and do the calculation in the interior only (no overlap) ;
269      for now, only implemented for SOM advection (to save CPU time).
270     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
271  o exch2 adjoint  o exch2 adjoint
272    First set of changes:    First set of changes:
273    - add exch2 hand-written adjoint templates    - add exch2 hand-written adjoint templates
# Line 15  o exch2 adjoint Line 279  o exch2 adjoint
279      (commented via 'cph-exch2')      (commented via 'cph-exch2')
280  o pkg/seaice  o pkg/seaice
281    - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.    - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
282    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
283       output of global_ocean.cs32x15.thsice .
284    
285  checkpoint59e  checkpoint59e
286  o exch2: new S/R that only use the cube-tracer (center-position) exchange:  o exch2: new S/R that only use the cube-tracer (center-position) exchange:
# Line 214  o in FFIELDS.h: Line 480  o in FFIELDS.h:
480       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
481  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
482  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
483      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
484        are no longer updating the vertical diffusivity array
485        (passed as argument) but are (re-) setting those arrays.
486  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
487    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
488      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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