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revision 1.858 by jmc, Thu Aug 16 02:34:16 2007 UTC revision 1.974 by dfer, Fri Apr 11 21:48:34 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 thsice pkg:
8      - Now hsMax limits snow heitght by turning it into ice following
9        flooding scheme (and now conserving energy)
10      - Slight rewriting of the formula in thsice_calc_thick.F
11      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
12        --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
13    
14    checkpoint59p
15    o gchem / dic / cfc :
16      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
17      - add new parameter files: "data.dic" & "data.cfc" ;
18      - various re-arrangement in initialisation & header file ;
19      - fix tutorial_global_oce_biogeo for multi-threaded test.
20    o pkg/dic: test for "pickup_dic" file when restarting ;
21      if no pickup-file, can restart with a re-initialised pH (same as it did
22      before) providing pickupStrictlyMatch is set to False.
23    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
24      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
25    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
26      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
27    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
28     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
29       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
30    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
31       scheme to use for vorticty-term ;
32     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
33       (with default selectVortScheme, return to original discretisation)
34     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
35    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
36    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
37      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
38      also fix diagnostics VISCAHW & VISCA4W.
39    
40    checkpoint59o
41    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
42    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
43      move a few statemens out the main loop into separate loops
44    o pkg/shelfice:
45      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
46        (kg/m^2/s), does not break tests, because in verification/isomip,
47        rhoConstFresh=rhoConst (by accident)
48      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
49      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
50        new file model/src/seawater.F, so that they are available for all pkgs.
51      - convert potential temperature into in-situ temperature. This changes the
52        isomip tests => update tests
53    o add a flag writePickupAtEnd (default=true) to be able to suppress
54      writing a pickup at the last timestep
55    o tools/mpack-1.6 :
56      - disable automake (not working) and autoconf (not needed).
57      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
58        also cleaner with much less compilation warnings.
59    o pkg/profiles:
60      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
61      (for "less than 32 characters name" compiler requirement)
62    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
63      conditions that have a different sampling frequency than S/T/U/V obcs
64    o pkg/diagnostics (stats-diags):
65      - fix global Min/Max in case 1 processor get only empty tiles
66    o genmake2: replace (4 times)
67         make genmake_tc_1.o >> genmake_warnings 2>&1
68      with
69         COMM="$CC $CFLAGS -c genmake_tc_1.c"
70         echo $COMM >> genmake_warnings
71         $COMM >> genmake_warnings 2>&1
72      to make genmake2 always see the value of CC as specified in the optfile.
73    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
74      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
75      - modify verification advect_cs test to test SOM-advection on CS-grid.
76    o pkg/ctrl:
77      - Rewrite of ctrl_map_ini_ecco.F,
78        introducing a generic routine (ctrl_map_ini_gen.F).
79      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
80    
81    checkpoint59n
82    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
83      number in dedicate array "hdiag":
84      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
85        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
86      - many small changes (integer format) for large number of diagnostics
87      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
88        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
89    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
90      usingSphericalGrid, this allows to define the rotated grid coordinates
91      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
92      geographical coordinates according to the inverse of the rotation defined
93      by the Euler angles, so that Coriolis parameter and online-interpolation by
94      exf works with the geographical coordinates on XC/YC/XG/YG.
95      Naturally, this feature does not work with all packages, so some
96      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
97      profiles), because there the coordinates are assumed to be regular
98      spherical grid coordinates.
99    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
100      - introduce isopycnal diffusion coefficient control.
101    o tools/adjoint_options:
102      - additional control vector components.
103    o pkg/mnc: have mnc create marginally meaning full coordinate variables
104      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
105    o pkg/mypackage:
106      - add example of read/write pickup for state-var ;
107      - add entry points to the main code for state-vars diags & write-pickup.
108    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
109      transitions for useExfYearlyFields
110      - add new subroutine that determines the file to read from for
111        use*YearlyFields = .TRUE. and .FALSE.
112      - add a verification experiment to global_with_exf that tests
113        useExfYearlyFields with USE_EXF_INTERPOLATION defined
114    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
115      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
116      subroutines (which could be generated from a template, because they are
117      almost identical), for now they are included in obcs_prescribe_read.F for
118      simplicity
119    o pkg/exf:
120      - add a little more diagnostic to exf_interp_read (in analogy to
121        mds_read_field, can be turned off with debugLevel < debugLevA=1)
122      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
123        ugly but fast by unrolling short inner loops, inserting a unroll=8
124        directive in routine lagran, and splitting a loop and making do while the
125        outermost loop (the latter requires the intoduction of index arrays)
126    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
127    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
128      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
129    o verification/seaice_obcs: updated for restart test and latest options
130    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
131      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
132      for now this is only available for the C-grid code and also within
133      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
134    
135    checkpoint59m
136    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
137      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
138    o gad_som : fix flux output (& diagnostics) to have same units as other  
139      advection scheme fluxes (was previously multiplied by deltaT).  
140    o added verification/seaice_obcs both to test seaice open boundaries
141      and to provide an example matlab scrpt for generating them
142    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
143    o pkg/salt_plume: clean up salt_plume_frac.F to
144      remove redundancy in PlumeMethod 1 and 4
145    o pkg/kpp: added saltplume diagnostics
146    o pkg/obcs and pkg/seaice:
147      - do not set uice and vice to zero when OB*icefile are unspecified
148      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
149      - moved seaice tracer obcs after call to seaice_growth
150    o pkg/salt_plume: added various options for salt plume depth
151      criterion and for vertical distribution of the salt
152    
153    checkpoint59l
154    o pkg/ptracers: new version of ptracers pickup:
155      read meta file and write only fields which are needed to restart.
156      ( same logic as main pickup file ; also using pickupStrictlyMatch )
157    o pkg/seaice:
158      - add timescale for melting due to warm mixed layer as a means of
159        setting SEAICE_availHeatFrac more conveniently
160      - add a CPP-flag/runtime parameter check for flooding algorithm
161      - reformulated availHeat in seaice_growth.F to be independent of AREA
162    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
163      unit changes
164    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
165    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
166      SX vector computer.
167    o pkg/seaice:
168      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
169        seaice forcing fields can now be read only through pkg/exf
170      - removed some unused halos
171    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
172    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
173      or U/VICE from U/VWIND before computing U/VSTRESS
174    
175    checkpoint59k
176    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
177      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
178    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
179      all experiments pass when compile with un-initialised var. checking option.
180    o added pkg/salt_plume
181    o script to test restart (for now, in MITgcm_contrib/jmc_script)
182    o pkg/seaice: new read/write pickup version.
183      read meta file and write only fields which are needed to restart.
184      ( same logic as main pickup file ; also using pickupStrictlyMatch )
185    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
186    o lab_sea.hb87: modify the domain & update output.hb87.txt :
187      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
188      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
189      process. Fixed here by closing the domain at the Northern boundary.
190    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
191    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
192      a set of consecutive levels in/from a 3-D array.
193    o pkg/ptracers:
194      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
195      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
196    
197    checkpoint59j
198    o in pkgs: dic, obcs, offline, rbcs:
199      standard way to compute coeff. for time interpolation between 2 time reccords
200      which retains full precision (& make results less dependent on compiler).
201      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
202    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
203      packages instead of reading ice cover and wind speed separately
204    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
205     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
206      to allow to compile customized code before the update)
207    o cleaning-up:
208      - fix CPP instruction syntax in pkg/obcs
209      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
210        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
211      - fix some threads issue in IO parts.
212    o pkg/dic:
213      - add tons of "_d 0" (--> much better testreports !)
214       and then update outputs of tutorial_global_oce_biogeo
215    o pkg/mom_fluxform:
216      add a special version of momentum advection intended to conserve momentum
217      next to a bathymetry step or a coastline edge. (default = off = #undef)
218    o new read/write pickup version:
219      - for now, only implemented for main (mdsio) pickup file.
220      - write out only what is needed to restart; merge pickup_nh , pickup_ph
221        and main pickup together.
222      - read meta file; read only what is needed to restart; stop if a field
223        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
224        if it make sense (even if the restart is not perfect).
225      - if no meta file, assume that pickup to read corresponds exactly to
226        a pickup that would currently be written.
227      - read pickup written in the old format (until checkpoint59i) if it
228        recognizes an old meta file (no field-list).
229      - add a meta file in exp. which starts from a pickup: 2 cases:
230        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
231         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
232        b) a meta file describing the content of the associated pickup file
233         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
234    o pkg/mdsio & pkg/rw:
235      - new routine to read a meta file ; new set of routine to read
236        Multiple-fields file (with meta file).
237    o added open boundary conditions capability for seaice
238        HSNOW, HSALT, UICE, and VICE
239    
240    checkpoint59i
241    o adjoint:
242      * fix multiDimAdvection adjoint
243        (partial recomputation problem by TAF for fVerT(:,:,kDown)
244        and comlev1 size definition (maxpass vs. max. number of tracers)
245      * verification/global_ocean.90x45x15 adjoint now tests
246        NLFS and multiDimAdvection using DST3 (=30)
247      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
248    o pkg/kpp: add "_d 0" to real constant (if missing);
249      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
250      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
251    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
252      for internal parameters related to restart process (formerly from PARAMS.h)
253      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
254    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
255      as argument. (only atm2d & obcs write_pickup have not yet been updated)
256    o pkg/monitor:
257      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
258      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
259      - account for deep Atmosphere factor and density factor (anelastic)
260    o added open boundary conditions capability for seaice HEFF and AREA
261    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
262      thermodynamics
263      - requires a little reorganization, which affects the testreport results
264        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
265        so that now the conservative form is tested
266      - add a few comments
267    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
268    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
269    o add new diagnostics to seaice: advective, diffusive fluxes (only for
270      multidim-advection, for scheme 2 they are not filled) and transports,
271      thermodynamic growth rates
272    o change units of EmPmR (inside the code, + within coupling interface)
273      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
274      Affects results @ truncation level (cg2d match) and update output of
275       experiments: lab_sea(6), global_ocean.90x40x15(10),
276      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
277      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
278      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
279      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
280    
281    checkpoint59h
282    o pkg/exf:
283      - improve vectorization by moving if-statement out of loops in
284        exf_mapfields, exf_radiation
285      - exf_bulkformulae.F: introduce 2D fields and vectorize code
286    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
287    o testreport:
288      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
289        monitor & update offline_exf_seaice exp. output.
290      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
291    o pkg/seaice:
292      - bug fix in the evp solver: boundary conditions were affected be
293        masking of zMax/zMin (changes results)
294      - minor bug fix in boundary conditions in seaice_calc_strainrates
295        (changes results for no_slip)
296      - seaice_lsr.F: make interpolation of eta dependent on boundaries
297      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
298      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
299        stress formulation and no-slip boundary conditions
300    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
301      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
302    o pkg/seaice: a first HSALT time stepping equation has been checked in
303    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
304      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
305      without requiring DO-IF statements
306    o pkg/thsice:
307      use continuous power-law function for partition of energy between lateral
308      melting/freezing and thinning/thickening ; old code using step function
309      still available with #undef THSICE_FRACEN_POWERLAW
310      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
311    o testreport: change AD testing : check against results/output_adm.txt
312      using same scripts as for forward test.
313    
314    checkpoint59g
315    o adjoint testing: in preparation for changing testreport:
316      - output format: cost and grad written on separated lines
317      - ad output results in directory "results" (instead of "results_ad")
318    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
319    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
320    o pkg/ecco: allow user defined cost function contributions
321    o testreport:
322      Allow to choose (per experiment) the list of tested output variables
323       and the main variable (used to issue a pass/FAIL ) ;
324      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
325      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
326      Also modify printing of summary:
327       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
328       b) echo the list of tested variables in the individual summary.txt of
329          each experiment.
330    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
331      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
332      (but still depend on the tile decompostion of the domain).
333    o pkg/seaice: change a discretization detail to make the B-grid code
334      "more symmetric". This change is likely to remove all "ridges/leads" that
335      where quasi-aligned with the grid in B-grid solutions. It may also be
336      the solution to the stress coupling issues with the B-grid.
337    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
338      remove .cvsignore from input dir. (since testreport no longer run here).
339    o pkg/thsice:
340     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
341     - fix reshaping of sea-ice just after advection:
342       melt all the ice only if ice-volume is too small.
343     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
344       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
345     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
346    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
347      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
348    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
349      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
350      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
351      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
352      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
353      -> update output.txt
354    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
355     this affects truncation error: -> update output.txt of exp:
356      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
357      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
358    
359    checkpoint59f
360    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
361    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
362      a bounded range (in forward mode)
363    o pkg/ecco, ctrl, autodiff and mom_common:
364     internal parameter controls, completements of implementations
365    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
366    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
367      (not seem any difference in testing results).
368    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
369       at face corners.
370  o pkg/generic_advdiff:  o pkg/generic_advdiff:
371   - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)   - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
372    loop range indices for computing vertical advection tendency    loop range indices for computing vertical advection tendency
# Line 222  o in FFIELDS.h: Line 585  o in FFIELDS.h:
585       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
586  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
587  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
588      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
589        are no longer updating the vertical diffusivity array
590        (passed as argument) but are (re-) setting those arrays.
591  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
592    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
593      cgrid-lsr and evp solver      cgrid-lsr and evp solver

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