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revision 1.2001 by jmc, Wed May 28 20:00:24 2014 UTC revision 1.2173 by jmc, Sat Jul 18 22:15:07 2015 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/offline:
8      - change where Offline-Fields are loaded, from load_fields_driver.F to
9        directly within FORWARD_STEP, just after updating iter number and time;
10      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
11        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
12       These changes allow:
13        a) to recover exactly on-line results using deltaToffline=deltaTClock,
14        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
15        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
16        time-step, both with GM & KPP files and with recomputing these fields;
17        b) no needs to switch on staggerTimeStep anymore;
18        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
19      - update output of experiments tutorial_cfc_offline (11 to 13 digits left)
20        and tutorial_dic_adjoffline (only 3 digits left).
21    o pkg/offline:
22      - change (rarely used) offset-iteration parameter to an offset time (in s):
23        can easily recover previous offset-iter effect by setting offset-time
24        (offlineTimeOffset) to offset-iter x deltaToffline;
25      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
26        in KPP as part of surface buoyancy forcing) in offline run.
27      - fix ptracers KPP non-local term in the case where KPP is re-computed.
28    o OpenAD
29      - Adding preliminary ggl90 test to OpenAD verification.
30        Config. with ggl90 currently diverges after 64 time steps
31        so will need more work to become more stable
32      - Adding preliminary kpp test to OpenAD verification.
33        required small tweakes in kpp_routines.F
34      - Merge and update from Krishna Narayanan's contrib area:
35        * Add one variable for preliminary OpenAD DIVA
36        * Add replacement time-stepping for OpenAD DIVA
37        * genmake2 flag -diva (but only for OpenAD; preliminary)
38        * required modifs for OAD_support
39        successful preliminary test for tutorial_global_oce_biogeo/
40    o pkg/seaice:
41      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
42      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
43        delta with a smooth function in s/r seaice_calc_viscosity
44        (no effect on EVP)
45      - rename local suffix "sqr" into "sq" for more consistent variable names
46    o pkg/seaice:
47        add new parameter SEAICE_deltaMin that is used ***only***
48        for regularizing Delta (and nothing else, like the parameter
49        which is also used for all sorts of things SEAICE_EPS).
50        Defaults to SEAICE_EPS for backward compatibility only.
51    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
52        the wrong key by inialising it before use -> fixes a recomputation
53        problem but does not fix the gradient
54    o pkg/layers:
55      - move resetting of flux arrays to outside the iLa loop
56        (this caused layers_diapycnal to not work with more than one layer coord.)
57      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
58    o pkg/layers:
59      - remove from common block 3D layers fields (used to diagnose transport
60        in tracer coords) and declare them as local arrays in layers_calc.F
61    o pkg/seaice:
62      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
63        in lab_sea forward experiment (changes results -> updated)
64      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
65    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
66       computations; for SEAICE_VECTORIZE_LSR
67      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
68        sweep to the outside,
69      - remove store directives and add "CADJ loop sequential" directives
70        in analogy to model/src/solve_tridiagonal.F
71      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
72        boundaries to yield more readable code. This has also the charming side
73        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
74        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
75        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
76        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
77        an additional option)
78       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
79       but the adjoint gradients (which are affected by this change) still explode.
80    o coupler (atm & ocn _compon_interf):
81      - avoid using Exch2 IO mapping if not suitable.
82    
83    checkpoint65m (2015/06/15)
84    o pkg/layers:
85      - clean-up old parameters setting (from Sep 2012):
86        + remove old parameters setting from common block (declared locally);
87        + stop if any old parameter is mixed with new parameters;
88        + check for valid or consistent parameter setting (e.g., layers_name)
89      - check that layers_bounds for Pot.Density are in the right range;
90        this is supposed to catch un-updated setting after recently shifting
91        potential density field "prho" by -1000 (now in "sigma" scale).
92    o pkg/layers:
93      - Added missing call to layers_fill for keeping track of tottend in
94        pkg/diagnostics/diagnostics_fill_state.F
95    o pkg/layers:
96      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
97        of diapycnal fluxes
98    o pkg/layers:
99      - reverted changes to interpolation to previous treatment; there
100        was never actually a problem
101    o pkg/layers:
102      - fix interpolation of layers tracers in the presence of partial cells
103      - add lots of new functionality to compute water mass transformation
104        (enabled by CPP flag LAYERS_THERMODYNAMICS)
105      - add new calls from main code (diags_oceanic_surf_flux.F,
106        thermodynamics.F, impldiff.F) and gad to save the necessary fields
107        for layers_thermodynamics calculations
108    o pkg/ptracers:
109      - add capability of stepping a passive tracer forward without advection
110        by setting PTRACERS_advScheme to 0.
111    o pkg/diagnostics:
112      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
113    o pkg/layers:
114      - shift potential density field "prho" by -1000 for density layer averaging so
115        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
116        Note that density bin boundaries (layers_bounds in data.layers) have
117        to be set accordingly (i.e., shifted, in sigma scale).
118    o pkg/layers:
119      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
120      - fix calculation of layer non-weighted velocity and layer probability
121      - add diagnostics for pot.density used for layer averaging
122    o pkg/seaice:
123      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
124        positiveness, modify a few comments and improve variable names,
125      - the changed computation of deltaC affects most seaice-related
126        experiments at the truncation level.
127        seaice_itd.thermo is affected by far the most, with
128        only 7 digits of agreement remaining; update experiments.
129    
130    checkpoint65l (2015/05/04)
131    o pkg/shelfice:
132      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
133        factor drKp1 to zero where it is negative (ie. do not use
134        SHELFICEBoundaryLayer if hFacC>1)
135      - the same for factor drLoc in shelfice_forcing.F
136    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
137        with modules in ptracers, when using testreport option "-small_f"
138    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
139      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
140    o verification/testreport
141      - add new option -small_f
142        with this option testreport first makes the target small_f (*.f files)
143        before running make (all). This is useful for explicit inlining when
144        all sources need to be full available.
145    o pkg/exf/exf_interp.F:
146        remove previous changes related to reverse (decreasing) input grids latitude
147    
148    checkpoint65k (2015/04/01)
149    o pkg/ecco:
150        fix missing cosphi initialization; use eccoiter in place of optimcycle;
151        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
152        instead of active read/write
153    o pkg/ctrl:
154        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
155        instead of active read/write.
156    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
157        return if .NOT.useAUTODIFF
158    o pkg/seaice: add CPP brackets (cost function related).
159    o model/src:
160        add useAUTODIFF run time switch.
161    o pkg/exf/exf_interp.F:
162        add code to allow input grids with latitude starting in the north (i.e. when
163        j=1 corresponds to northern edge of field); modify global_with_exf to test
164        this feature.
165    o verification/testreport:
166      - replace "grep -A3" with POSIX conformal sed command, because there are
167        implementations of grep that cannot do contextual searches
168      - replace "cat -n" by "nl" (two occurrences), because not all implementations
169        of "cat" have the option "-n"
170    o model/src:
171        add new file gsw_teos10.F that contains 3 functions, more or less a copy
172        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
173        convert from conservative to potential temperature. For now they are not
174        called anywhere.
175    o pkg/ggl90: make "useIDEMIX" useful
176      - re-organize code in s/r ggl90_calc a little to move computations that
177        are different for idemix into separate loops (changes verification
178        experiment idemix at truncation level, 12 digits remain -> updated)
179      - requires 2 new 2D fields KappaM, verticalShear
180      - make hFacI and recip_hFacI local 3D variables that are passed to
181        s/r ggl90_idemix
182      - fix and improve some comments
183    
184    checkpoint65j (2015/02/25)
185    o pkg/openad
186      - synchronize seawater.F with version in model/src: replace routine
187        body of sw_temp by calling sw_ptmp and fix/add a few comments.
188    o pkg/mnc:
189      - change default value of pickup_read/write_mnc params to FALSE
190        (since few features are missing in reading MNC pickup files).
191    o model/src:
192      - change default (background) vertical diffusivity for salt to be the
193        temperature (background) vertical diffusivity.
194      - change background vertical diffusivity in vertical mixing pkgs ggl90,
195        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
196        This makes ptracers default diffusivity (that uses salt diffKr) more
197        consistent with vertical mixing schemes.
198    o verification/testreport:
199      - fix typo in "-pcls" option ;
200      - put temp files in /tmp (instead of in local dir)
201      - add option "-ncad" to use genmake2 new option "-nocat4ad"
202      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
203    o pkg/ggl90 (idemix code):
204      - apply few fixes ; add some missing "_d 0" ; update output of exp.
205        global_ocean.90x40x15.idemix
206    o OpenAD
207      - enable active file I/O and begin removal of work-around code
208        for OpenAD for handling control variables (memory vs. active files)
209      - new CPP options file OPENAD_OPTIONS.h
210      - revert to genarr2d gradient check for hs94.1x64x5
211      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
212      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
213    o tools/genmake2:
214      - add option for an alternative Makefile (from Martin) where multiple
215        source files are sent to TAF (instead of all in one file).
216    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
217      - code provided by Carsten Eden as an extension of ggl90
218      - so far the code is turned on within ggl90 by setting a CPP-flag at
219        compile time; a runtime flag implementation is not yet complete
220      - tested in new verification experiment global_ocean.90x40x15.idemix
221    o verification:
222      - reduce length of the AD test run by half for experiments
223        global_ocean.cs32x15 (std + thsice) and isomip
224      - enable active file I/O for OpenAD, adjust verifications accordingly
225      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
226    o verification/testreport:
227      - fix two non-POSIX sed statements so that there are no error messages
228        on Mac OS X
229      - replace hostname -s with hostname | sed 's/\..*$//'
230    o model/src/seawater.F:
231      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
232        (following the matlab code), which would have avoided the bug caught
233        by Matt (see below) in the first place
234    o pkg/shelfice:
235      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
236        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
237      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
238        ice-shelf case (i.e., within surface level).
239      - add config summary in shelfice_check.F
240      - remove global variable recip_SHELFICElatentHeat and replace by a local
241        variable recip_latentHeat
242      - introduce diagnostics for friction velocity uStar (in case of
243        SHELFICEuseGammaFrict)
244      - change verification experiment isomip.htd:
245        + start from pickup (as input_ad at nIter0=8640)
246        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
247        + test SHELFICEuseGammaFrict = .TRUE.
248        + test SHELFICEadvDiffHeatFlux = .TRUE.
249    o model/src:
250      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
251        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
252        update output of experiments global_with_exf.yearly and isomip (all 6).
253    o pkg/shelfice:
254      - change setting of kTopC to also be zero where there is no ice-shelf.
255      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
256        ice-shelf is.
257      - first attempt to get RealFreshWaterFlux effects: for now, only without
258        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
259    o pkg/seaice: add the option to prescribe a fixed thickness PDF
260      for thermodynamic calculations
261      - because of divisions of the type 7/7 not exactly equal to 1, this change
262        affects results of some verification experiments by up to 4 digits:
263        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
264        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
265        adjoint: lab_sea, lab_sea.noseaicedyn
266        -> updated
267    
268    checkpoint65i (2015/01/23)
269    o model/src:
270      - change units of frictionHeating field from W to W/m^2
271      - fix bug in frictional heating from stratospheric drag in
272        S/R ATM_PHYS_TENDENCY_APPLY_V
273      - with synchronous time-stepping: move resetting to zero of frictionHeating
274        field from load_fields_driver.F to thermodynamics.F ;
275      - add diagnostics for frictional heating.
276    o model/src & gmredi K3D:
277      - add frictionHeating field to pickup-files (for synchronous time-stepping)
278      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
279      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
280        and name in pickup file).
281      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
282    o model/src:
283      - move (from ini_forcing.F) initialisation of all arrays in header file
284        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
285        (since Nov 2012) with option selectAddFluid=1.
286    o pkg/shelfice:
287      - change units (+ document) of newly added field "shelfIceMassDynTendency"
288      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
289    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
290    o pkg/seaice: two new runtime parameters:
291      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
292        long overdue
293      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
294        parameterization of tensil stress for fast ice (does not do anything yet)
295    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
296        for LSR: move checking overlaps out of JFNK-if-block
297    o pkg/atm_phys:
298      - move copy of grid and dynamical fields out of atm_phys_driver.F into
299        new S/R ATM_PHYS_DYN2PHYS.
300      - fix level height for Linear Free-Surf case (to be consistent with
301        fixed-in-time pressure levels).
302    o pkg/mom_common (bottomdrag):
303      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
304        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
305        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
306    o pkg/shelfice (u/v_drag):
307      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
308      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
309        (now similar to shelfice_u_drag.F)
310      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
311        from mom_vecinv.F (similar to mom_fluxform calls).
312    o pkg/mom_common (bottomdrag):
313      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
314      - add options for alternative discretisation of velocity norm in quadratic
315        bottom drag: averaging of grid-cell-center KE to U.point and V.point
316        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
317        improves when averaging only the other component (e.g. vVel for U bottom
318        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
319      - add options (bottomVisc_pCell) to account for partial-cell in bottom
320        friction (no-slip BC) thus getting the true distance from the bottom;
321        off by default since this also reduces model stability (explicit bottom
322        friction). Changes produce different machine truncation with linear-drag
323        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
324        front_relax (bvp & mxl, 10 & 11 digits).
325    o model/src & mom pkgs:
326      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
327        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
328      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
329        just copy level Nr value to level Nr+1.
330    o doc:
331      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
332    o pkg/streamice:
333      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
334        SHELFICE.h: move array shelficemass to init_varia, initialise
335        from array shelficemassinit, which is set in init_fixed and
336        has option to be set from file; introduce array
337        shelficeMassDynTend array, set thru file in init_fixed
338      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
339        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
340        pkg/streamice
341      - shelfice_thermodynamics.F: call shelfice_step_icemass if
342        SHELFICEMassStepping = .true.
343      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
344    
345    checkpoint65h (2014/12/17)
346    o verification/global_ocean.90x40x15, global_ocean_ebm:
347      - update to generic controls.
348    o pkg/ctrl:
349      - ctrl_map_ini_genarr.F: test for igen>0
350      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
351      - move gentim2d part of ctrl_map_ini_genarr.F to
352        new separate routine : ctrl_map_ini_gentim2d.F
353      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
354        add time variable weights and cyclic controls (time mean,
355        seasonal cycle, etc) capabilities to gentim2d
356    o pkg/ecco:
357      - move reading of error, conversion to weights from
358        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
359    o global_oce_llc90, cs32:
360      - activte sbo.
361      - CTRL_SIZE.h : add maxCtrlProc.
362      - activate the new genctrl capabilities.
363      - update following reorganization of global_oce_input_fields.tar.gz  
364    o pkg/ctrl/ctrl_ad_diff.list:
365      - add missing ctrl_init_rec.f
366    o tools/OAD_support/keepOriginal:
367      - add ctrl_init_rec.F
368    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
369      - avoid recomputations of xx_gentim2d_dummy.
370    o momentum diagnostics:
371      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
372        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
373    o pkg/seaice/seaice_lsr.F:
374      - fix computation of BU/BV, make sure they are non-zero, only necessary
375        for cubed sphere exchanges and SEAICE_OLx/y>0.
376        This makes calling s/r fill_cs_corner_rl obsolete (removed).
377    o verification/global_ocean.cs32x15/input.seaice
378      - add test for strong implicit coupling and restricted addtive Schwarz
379        methods for LSR
380      - update results/output.seaice.txt
381    o verification/tutorial_global_oce_biogeo:
382      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
383        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
384        update output_adm,_oadm,_tlm.txt
385    o pkg/dic:
386      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
387      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
388        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
389    o verification/tutorial_global_oce_biogeo:
390      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
391        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
392        update output_adm,_oadm,_tlm.txt
393    o eesupp/src:
394      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
395        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
396    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
397      LSR (following Hutchings et al. 2004)
398      - introduce zetaZ as a global variable (requires adjustments in
399        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
400        in seaice_calc_viscosities.F
401      - new flag SEAICEuseStrImpCpl (default off)
402      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
403        momentum equations
404      - JFNK-solver (preconditioner) adjusted to allow using this method
405        (where it does not have any positive effect)
406    o pkg/seaice
407      - add overlap for restrictive additive Schwartz method also to LSR, but
408        turn it off by default (because it only seems to work for non-cubed
409        sphere/llc topologies)
410    o pkg/autodiff
411      - add extra exchanges in addummy_in_steppging also for mnc output
412    o pkg/seaice:
413      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
414        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
415    o pkg/obcs:
416      - add option to specify domain-connected piece Id along OB though files
417        (for now, only used to diagnose PhiVel; default =1 -> global correction)
418      - modify obcs_diag_balance.F to process each connected-part separately;
419        exclude OB where Id = 0 but keep the full divergence there (-> constant
420        Psi along this portion of OB and all inflow derived from grad(Phi))
421      - add example of OB-conect files in verification/so_box_biogeo/input.
422    o pkg/diagnostics:
423      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
424      a) use non zero matrix element across OB and solve for Phi 1 grid point
425         outside OB (i.e, where tracer OBCS are applied).
426      b) global imbalance of inFlow/outFlow across OB: instead of modifying
427         velocity across OB, spread it uniformly along the OB in the RHS.
428    
429    checkpoint65g (2014/11/19)
430    o pkg/diagnostcis:
431      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
432    o pkg/my82,pp81,kl10:
433      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
434        field diffKr as background diffusivity to set minimum diffusivity value.
435    o pkg/seaice:
436      - add new parameter SEAICEuseEVPrev (for revisited EVP by
437        Bouillon et al 2013)
438      - add SEAICE_evpAlpha/Beta to namelist
439      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
440        involve trivial re-ordering of divisions/multiplications that should not
441        have any effects, but ... they do change the results of lab_sea.hb87 so
442        that only 2 digits of agreement remain, in line with the general
443        instability/fragility of the evp-code. For now, I do not care and just
444        update the verification experiment
445    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
446      - remove xx_genarr2d_numsmooth etc
447      - use xx_genarr2d_preproc etc instead
448      - carry out smooth_correl2D at initialization stage rather than during
449        time stepping.
450      - get smoothOpNb from xx_gentim2d_preproc
451    o global_oce_cs32 :
452      - add test of generic ecco capabilities.
453    o pkg/exf/exf_getsurfacefluxes.F :
454      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
455    o pkg/ctrl,ecco :
456      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
457        is defined.
458    o pkg/seaice: add diagnostics for Delta (deformation parameter)
459    o model/src:
460      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
461        diffusivity (background) is specified but ignored.
462    o verification:
463      - in testreport, convert hostname to lower case for default output dir name
464    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
465    o pkg/dic: add modifications from Hajoon:
466      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
467      - light attenuation: add self-shading effect by climatological Chlorophyll
468        (read from file).
469    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
470        compiles when SEAICE_ALLOW_DYNAMICS is undefined
471    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
472        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
473        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
474        approach where CPP_OPTIONS.h includes an omnipotent
475        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
476    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
477        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
478    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
479        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
480        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
481    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
482      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
483      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
484      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
485      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
486    o pkg/ctrl,ecco,exf :
487      - remove variables associated with NON-generic costs,
488        unless ECCO_CTRL_DEPRECATED is defined.
489      - remove NON-generic NON-obcs controls,
490        unless ECCO_CTRL_DEPRECATED is defined.
491    o pkg/ctrl : added ctrl_local_params.h
492    o pkg/ecco : added ecco_local_params.h
493    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
494        experiments, which will progressively be removed once the
495        experiments are revised to use only generic controls/costs.
496    
497    checkpoint65f (2014/10/13)
498    o pkg/ctrl, ecco, seaice : minor changes in headers
499    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
500        cost function and control capabilities added since checkpoint65c.
501    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
502    o pkg/ecco: increase modularity and improve logic
503      - ecco_toolbox.F (new) : basic operations that are often used,
504        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
505        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
506      - cost_gencal.F (new) : determine filnames and records.
507      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
508      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
509        and exploit the above functions leading to more compact code.
510      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
511      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
512        using_ers, using_gfo, using_mdt is now only defined within gencost)
513    o pkg/ecco: extend generic cost capabilities
514      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
515        capabilities via gencost_preproc (+ _c,_i,_r related params),
516        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
517        gencost_outputlevel arguments to cost_generic
518      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
519        and active_read, making room for gencost_preproc to take effect.
520        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
521      - pkg/ecco/cost_generic.F :
522        compute and store misfit maks*(model-data) in localdif that is
523        then used in cost and for output, output misfit if outlev.GT.0
524      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
525        rather gencost_barfile for deciding whether to write barfile
526      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
527      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
528        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
529      - pkg/ecco/ecco_summary.F : report gencost variables
530      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
531    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
532    o pkg/ecco: internal re-organization
533      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
534        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
535        mv relevant variables definition from ecco_cost.h to ecco.h,
536        make sure gencost routines only include ecco.h)
537      - throughout : add missing CCP switches, rm unused variables,
538        and rm un-necessary CPP switches
539      - throughout gencost routines : replace modelstartdate with
540        gencost_startdate when needed
541      - cost_bp_read.F : use arguments, instead of common blocs
542        so that it can be used also by (new) cost_gencost_bpv4.F
543      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
544      - ecco_phys.F : compute etanFull
545      - ecco_readparms.F : rename using_topex as using_tpj, add
546        bpv4-grace to gencost list, initialize added parameters
547      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
548    
549    checkpoint65e (2014/09/28)
550    o pkg/obcs:
551      - replaced the just-added CPP options with run-time variables
552        (see pkg/obcs/OBCS_PARAMS.h for details)
553    o pkg/obcs:
554      - add additional CPP options for sponge boundary layers
555        (see pkg/obcs/OBCS_OPTIONS.h for details)
556    o pkg/atm_phys:
557      - implement simple (obliquity only, assuming circular planet orbit)
558        seasonal cycle for incoming insolation ; used when run-time parameter
559        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
560    o pkg/exf, pkg/ecco, pkg/ctrl:
561      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
562      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
563      - implement gentim2d for xx_tauu, xx_tauv
564    o pkg/ctrl, pkg/ecco :
565      - fix and complement the generic controls implementation
566    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
567        pkg/shelfice/shelfice_thermodynamics.F,
568        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
569        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
570      - add weight in CTRL_GET_GEN calls
571    o pkg/ctrl :
572      - ctrl_get_gen.F : add weight as input parameter, and apply
573        it directly rather than using smooth_correl2Dw (to be retired).
574      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
575    o pkg/ctrl :
576      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
577        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
578      - re-activate ctrl_summary (call in ctrl_init.F)
579    o pkg/ctrl/ctrl_cost_gen.F :
580      - fix CCP brackets, remove un-necessary myiter, mytime
581    o pkg/ecco, pkg/ctrl :
582      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
583      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
584      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
585      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
586    
587    checkpoint65d (2014/09/15)
588    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
589      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
590        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
591    o pkg/ctrl/ctrl_map_ini_genarr.F :
592      - remove compilation failure
593      - replace hard coded example
594      - use ctrl_map_ini_gen2D, 3D
595    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
596      - on/off switch based upon xx_genarr2d_weight,3d
597    o src/packages_init_variables.F :
598      - regroup pkg/estimation calls
599      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
600        (moved to ctrl_init_variables)
601    o cost/cost_init_varia.F :
602      - remove ecco_cost_init_varia
603        (moved to ecco_init_varia)
604    o ctrl/ctrl_init_variables.F :
605      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
606      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
607    o ctrl/ctrl_map_ini.F :
608      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
609        (moved to ctrl_init_variables)
610    o ctrl/ctrl_map_ini_ecco.F :
611      - remove ECCO_PHYS (mv to ecco_init_varia)
612      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
613    o ecco/ecco_ad_diff.list :
614      - add ecco_init_varia.f
615    o ecco/ecco_init_varia.F
616      - new routine
617    o pkg/streamice:
618      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
619        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
620      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
621    o pkg/generic_advdiff:
622      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
623    o pkg/exf:
624      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
625         xxg_precip capability
626      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
627    o pkg/ctrl:
628      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
629    o model/src/load_fields_driver.F :
630      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
631        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
632    o OpenAD verification experiments:
633      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
634        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
635        for now, only in pkgs used in OpenAD verification experiments.
636      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
637        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
638        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
639        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
640    o OpenAD verification tests:
641      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
642      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
643        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
644      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
645        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
646    o model/src & generic_advdiff:
647      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
648        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
649        dynamics requires valid tracer forcing only over tile interior but, for
650        some diagnostics, may need to extend it over 1 point in tile halo region.
651      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
652        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
653        setting in temp/salt/ptracer_integrate.F
654    o pkg/dic:
655      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
656        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
657        in gchem_forcing_sep.F
658    o pkg/autodiff & obcs:
659      - add storage of current OB values for U & V (was already done for T & S).
660    
661    checkpoint65c (2014/08/30)
662    o pkg/dic:
663      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
664        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
665        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
666    o verification:
667      - new experiment testing OBCS and DIC pkgs, using params & output from
668        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
669        passage: take OBCS from the last year of a 2 yrs simulation and initial
670        conditions from t=1.yr while keeping the same forcing.
671    o model/src:
672      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
673        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
674    o pkg/diagnostics (Stats-Diags):
675      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
676        a) refine region where stats are computed, excluding where arrhFac=0 ;
677        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
678        c) extend regional stats over the region edges (for U or V pt location).
679    o pkg/gchem:
680      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
681        pkg/dic is currently changing/updating ptracers values beyond the OB).
682    o verification (hs94):
683      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
684        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
685        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
686        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
687    o pkg/ptracers:
688      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
689        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
690      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
691        with AB-2 code (so that it get tested).
692    o model/src:
693      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
694        with AB-2 code (previously only available with AB-3 code).
695        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
696        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
697        there, by calling CYCLE_AB_TRACER).
698    o pkg/generic_advdiff:
699      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
700        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
701        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
702        S/R temp/salt/ptracers_integrate.F
703    o model/src & pkg/ptracers:
704      - remove common block variables gT,gS (in DYNVARS.h), except when
705         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
706      - remove common block variable gPtr.
707    o model/src & pkgs:
708      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
709         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
710         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
711         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
712      + change accordingly all calling S/R.
713      - use local temperature/salinity/ptracer tendency array (without bi,bj)
714        in S/R temp/salt/ptracers_integrate.F
715    o pkg/seaice:
716      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
717        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
718      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
719        in seaice_lsr
720      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
721        in s/r seaice_lsr_calc_coeffs
722    o pkg/mdsio:
723      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
724        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
725        too long (e.g., > MAX_LEN_FNAM/2 )
726    
727    checkpoint65b (2014/08/12)
728    o pkg/matrix:
729      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
730    o model/src:
731      - fix initialisation of geothermalFile; compile geothermal-flux code in
732        natl_box verification experiment.
733    o model/src & pkg/down_slope:
734      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
735      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
736        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
737        results at machine truncation level: update output of experiments
738        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
739    o pkg/diagnostics (Stats-Diags):
740      - do not cumulate the full volume when DIAGNOSTICS_FILL is
741        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
742        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
743        times (but Min,Max and StD are still wrong).
744    o model/src:
745      - add geothermal flux forcing: read in ini_forcing.F as time-constant
746        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
747    o model/src:
748      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
749        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
750        arrays are already updated while adjustments (filters, conv.adjustment) are
751        still applied later, in S/R TRACERS_CORRECTION_STEP.
752    o model/src:
753      - store in common bloc array "rhoInSitu" the virtual potential temperature
754        anomaly that is used to compute geopotential: this make the atmos code
755        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
756    o pkg/seaice/seaice_lsr.F
757      - rename integer variable ilcall to ipass (that's what it is called
758        in the residual diagnostics
759      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
760        default) for improved non-linear convergence of the first few steps
761      - adjust a few comments and add new ones to explain some of the store
762        directives
763    o pkg/generic_advdiff (& ptracers):
764      - re-work the code to check for valid advection scheme and for minimum
765        size of overlap (now stored in local common bloc in gad_advscheme.F)
766    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
767      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
768      - add an auxilliary variable "bet" and fix store directives and keys in
769        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
770        less exact gradients in my tests); but there are still
771        recomputation warning (although gradients are sort of OK), when
772        SEAICE_LSR_VECTORIZE is not defined, so this flag and
773        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
774      - update verification experiments lab_sea.
775      - change some comments in S/R seaice_calc_viscosities
776    o model/src:
777      - if staggerTimeStep=T, always apply exchange to velocity field in
778        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
779        (independent of using multi-dim advection or not); no effect on FWD run
780        but affects AD results (at machine truncation level): update output of
781        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
782        and isomip (oad: 12.d).
783    o pkg/generic_advdiff:
784      - stop if doAB_onGtGs is set to FALSE but ignored
785      - refine warning related to stability of tracer time-stepping
786        regarding internal wave dynamics.
787      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
788        on staggerTimeStep & implicitIntGravWave (will now get a warning
789        if potentially unstable).
790    o pkg/kl10:
791      - add new pkg "kl10" for mixing due to internal wave breaking, from
792        http://www.sciencedirect.com/science/article/pii/S1463500310000144
793        (contribution from Jody Klymak), tested in verification experiment
794        verification/internal_wave/input.kl10/
795    o isomip experiment:
796      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
797        (input.htd) and update the output.
798    o cd_code experiments:
799      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
800        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
801        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
802        update the corresponding output.
803    o pkg/seaice:
804      - reduce the number of include files and store directives in
805        S/R seaice_lsr_tridiagu/v
806      - change the order of loops in one case in S/R seaice_lsr_tridiagv
807        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
808        get rid off one store directive (a TAF bug?)
809      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
810        S/R seaice_lsr_tridiagv to change the loop range for consistency
811      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
812      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
813        S/R seaice_lsr_tridiagu/v (requires update of
814        offline_exf_seaice/input.dyn_jfnk)
815    
816    checkpoint65a (2014/07/27)
817    o model/src:
818      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
819        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
820        (topo in p-coords, ice-shelf in z-coords); update output of experiments
821        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
822    o model/src:
823      - collect momentum forcing tendency into local 2-D array (passed as argument
824        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
825        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
826        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
827      - collect T & S forcing tendency into local 2-D array (passed as argument to
828        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
829        affects results at machine truncation level (e.g., ocean: if using
830        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
831        correction due to vertical advection).
832      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
833        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
834        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
835        obcs_ctrl (ad & fwd grd @ 12 & 7).
836    o pkg/ptracers & diagnostics:
837      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
838        title (to avoid some unexpected truncation); sort out ptracers diags units.
839      - collect ptracer forcing tendency into local 2-D array (passed as argument
840        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
841    
842    checkpoint65 (2014/07/18)
843    o pkg/fizhi:
844      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
845        affects results at machine truncation level. Update output of experiments
846        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
847    o pkg/seaice: more clean up
848      - rename TAF common block tapes to be more consistent and remove
849        unnecessary duplicates
850      - add store directives to remove more recomputations, but use smaller
851        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
852        The idea behind this flag is to reduce the memory footprint when the
853        adjoint of the LSR is not required. As of now, defining the flag
854        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
855        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
856        For experiment offline_exf_seaice, this means on a linux box with gfortran
857        nearly a factor of 10 (but keep in mind there is mostly seaice code in
858        this experiment):
859        > size mitgcmuv_ad
860        text    data        bss     dec        hex
861        5100659 1216  220458952  225560827  d71c8fb
862        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
863        but only a moderate increase of 36% for global_ocean.cs32x15:
864        text    data        bss     dec        hex
865        6695027 1648 1014578664 1021275339 3cdf6ccb
866        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
867      - note: there are still recomputations in global_ocean.cs32x15 and
868        offline_exf_seaice and the gradient agreement changes (gets a
869        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
870      - in general, the AD gradients still are wrong
871    o OpenAD
872      - clean up code_oad/ directories somewhat by moving files
873        dontCompile, dontTransform, keepOriginal to OAD_support/
874    o model/src:
875      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
876        (not currently tested): add dissipation terms before NLFS rescaling of
877        tendencies (previously done after).
878    o pkg/diagnostics:
879      - write stats-diags in ascii file with more digits (same as in monitor).
880    o pkg/down_slope:
881      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
882        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
883    o model/src:
884      - new file "apply_forcing.F" containing all the code previously in
885        external_forcing.F, but with new argument list: pass, as new argument,
886        the current level tendency array to update (instead of a direct update
887        of the common bloc array). Change the corresponding calls.
888      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
889        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
890    o pkg/seaice/seaice_lsr, a little bit of clean up
891      - rearrange some code blocks, so that now all calculations for
892        setting up the right-hand-sides done within one single block
893        (I find that easier to read and understand)
894      - rearrange freedrift-code to reduce the number of ifdefs
895      - adjust some indentations and comments
896    
897    checkpoint64z (2014/07/10)
898    o model/src and several pkgs:
899      - change argument list of all S/R called from external_forcing.F and
900        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
901        to pass, as argument, the current level tendency array to update
902        (instead of a direct update of the common bloc array).
903      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
904      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
905    o pkg/seaice/seaice_lsr.F
906      - always initialize local arrays in seaice_lsr_tridiagu/v
907      - add more local tapes to seaice_lsr_tridiagu/v
908      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
909        keep it in bi/bj loop; this seems to be essential
910      - gradients are still wrong but only by 4-7 orders of magnitude
911        instead of 15 orders of magnitude, lab_sea improves a little
912    o pkg/seaice
913      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
914        generates unnecessary code in seaice_lsr_ad
915      - add more store directives in seaice_lsr to avoid unnecessary code
916        in seaice_lsr_ad
917      - exclude some residual computations in seaice_lsr when
918        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
919        in seaice_lsr_ad
920      - add more storing, a new tape (model/src/the_main_loop.F) and
921        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
922        and klockey should be checked by a specialist)
923      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
924        and update lab_sea after previous changes in pkg/seaice below
925    o pkg/autodiff:
926      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
927        viscFacInAd : run time parameters allowing for adjoint switches
928        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
929    o pkg/ecco:
930      - introduce cost_gencost_boxmean.F that computes a box mean
931        temperature (for use in adjoint sensitivity studies).
932    o model/src/set_defaults.F : initialize viscFacAdj to 1.
933    o pkg/mom_common/mom_calc_visc.F:
934      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
935    o pkg/seaice/seaice_summary.F:
936      - statement for SEAICEadjMODE now in autodiff_readparms.F
937    o pkg/seaice:
938      - remove some store directives and add new ones in an effort to get
939        finally rid off the recomputation warnings. This is successful
940        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
941        defined (i.e. no extensive recomputation warnings left), but there
942        are still too many recomputations on the solver iteration level
943      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
944      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
945        SEAICE_SIZE.h
946      - add a store directive in S/R seaice_calc_viscosities
947    o pkg/seaice (ITD code):
948      - fix definition of Hlimit for multi-threaded case
949      - use double precision arithmetic to compute Hlimit: this affects results;
950        update output of experiment seaice_itd.
951    o replace content of verification/seaice_itd
952      - instead of a 1D column use the configuration of offline_exf_seaice
953        to test the ice thickness distribution code with ridging
954      - this is a first shot at this experiment
955      - change of some defaults of ridging parameters SEAICEhStar (from
956        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
957        and lot of new comments.
958    
959    checkpoint64y (2014/06/20)
960    o pkg/seaice/seaice_reg_ridge.F:
961      - modify the regularization of very small volumes of ice; only check
962        total volume HEFF, and do not apply correction to individual ice
963        classes because that leads to funny patterns in the heat and fw-fluxes
964        into the ocean. Adjust seaice_itd/results/output.txt
965      - replace nITD by SEAICE_multDim in loop-ranges
966    o pkg/exf:
967      - add code to process the case field period = -12. with UV interpolation.
968      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
969        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
970    o verification/global_with_exf:
971      - switch all fields period to -12. (was previously untested) in input/data.exf
972        (but keep secondary test ".yearly" unchanged); update the reference output.
973    o pkg/cal:
974      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
975    o pkg/exf:
976      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
977        to replace logical switch "exf_verbose"
978      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
979    o pkg/sbo:
980      - update from Katherine Quinn: evaluate mass directly from density and SSH
981        (budget using Finite Volume method) instead of from bottom pressure.
982      - allow testreport to collect few selected SBO output ; tested in exp.
983        global_ocean.90x40x15 (after updating the results, to include SBO output).
984      - fix some multi-threading issues (in output part).
985  o model/src & most packages:  o model/src & most packages:
986    - always call {PKG}_READPARMS even if corresponding use{PKG}=F;    - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
987    - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R    - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
988      PACKAGES_UNUSED_MSG to print a weak warning when parameter file      PACKAGES_UNUSED_MSG to print a weak warning when parameter file
989      "data.{pkg}" exist ; and leave the S/R (return) just after.      "data.{pkg}" exist ; and leave the S/R (return) just after.
990      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
991        + call LAND_READPARMS from packages_readparms.F
992  o pkg/seaice:  o pkg/seaice:
993    - remove code that resets useThSice in S/R seaice_readparms and    - remove code that resets useThSice in S/R seaice_readparms and
994      replace by a warning in S/R seaice_check      replace it by a warning in S/R seaice_check
995    - remove parameter MULTDIM, replace with nITD and runtime    - remove parameter MULTDIM, replace with nITD and runtime
996      parameter SEAICE_multDim (still hard-wired to nITD if      parameter SEAICE_multDim (still hard-wired to nITD if
997      SEAICE_ITD is defined)      SEAICE_ITD is defined)

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