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revision 1.1889 by dimitri, Mon Jul 1 16:55:57 2013 UTC revision 1.2190 by mlosch, Wed Oct 21 15:25:44 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/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
8      a chance of giving the same results as a fully converged VP (JFNK) solver
9    o tools/adjoint_options/adjoint_diva:
10      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
11    o pkg/streamice:
12      - spotted bug in streamice_driving_stress using dyG where should have been dxG
13    o pkg/exf:
14      - remove STOP statement that prevented to use wind or (wind-)stress
15        interpolation for constant-in-time forcing fields (wind/stress period = 0).
16    o pkg/seaice:
17      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
18        5 additionals 2D fields and 6 new store directives
19      - change logic in seaice_readparms.F: EVP code can now be turned on in
20        various ways, setting SEAICE_deltaTev is no longer required,
21        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
22        or SEAICEaEVPcoeff
23    o pkg/shelfice/shelfice_thermodynamics.F
24      - redefining uLoc/vLoc to u/v, instead of 2u/v
25    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
26      - this is an intermediate state of a truely converging EVP that has
27        the potential of outperforming implicit VP methods, I do not recommend
28        using it yet.
29      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
30        and all parameters are hardwired
31      - for convergence it still requires very smooth regularisations, that means,
32        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
33        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
34        specific averaging appears to be required, still subject to tuning
35      - still needs cleaning and I need to turn parameter into runtime parameters
36      - add code to compute and print residuals of iteration, compile with
37        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
38    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
39      that entered with r1.54 on Sep04, 2015, -> update results
40    
41    checkpoint65o (2015/09/14)
42    o pkg/mom_vecinv & mom_common:
43      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
44        called from there.
45      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
46        allows to use Vector-Invariant form in deep atmos and anelastic formulation
47    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
48      and Koenig-Beatty+Holland (2012)
49      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
50      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
51      - requires an extra input argument for S/R seaice_calc_viscosities
52      - tensileStrength's depth dependence is different from Itkin et al. (2015)
53        (to be changed and played with, for now exponential)
54    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
55      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
56        by AREA according to Connelly et al. (2004), JPO.
57      - For EVP and the LSR solver, the implicit part of the drag term is
58        the only non-zero term in the denominator when there is no ice (which
59        prevented running the model with zero ice-ocean drag). If
60        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
61        (or zero main diagonals BU/BV) which need to be caught. A practical
62        consequence is that for open water, the momentum equation reduce
63        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
64        they happen to be zero, often leading to a non-zero solution over
65        open water.
66    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
67        efficient EVP method.
68      - introduce area-weighted averages for e12 (analogously to
69        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
70        remain, but also changing the order of terms in the previous average
71        changed the results as much) -> update experiment
72      - add SEAICE_DELTA_SMOOTHREG code
73      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
74        TEM-code
75      - adjust loop bounds so that only required fields are computed
76      - add new averaging code for zetaZ/deltaZ (again similar to
77        seaice_calc_viscosities.F), inactive by default for now (will change
78        results again), but will replace old code eventually
79    o eesupp/src:
80      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
81        to always cumulate tile local-sum in the same order
82        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
83        Still uses MPI_Allreduce (like standard code) but on array of tiles
84        and should be faster than GLOBAL_SUM_SEND_RECV code.
85      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
86        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
87      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
88         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
89         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
90         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
91         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
92    
93    checkpoint65n (2015/07/29)
94    o pkg/thsice:
95      - add a warning when used with pkg/aim but without updating SST
96        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
97    o pkg/offline:
98      - change where Offline-Fields are loaded, from load_fields_driver.F to
99        directly within FORWARD_STEP, just after updating iter number and time;
100      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
101        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
102       These changes allow:
103        a) to recover exactly on-line results using deltaToffline=deltaTClock,
104        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
105        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
106        time-step, both with GM & KPP files and with recomputing these fields;
107        b) no needs to switch on staggerTimeStep anymore;
108        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
109      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
110    o pkg/offline:
111      - change (rarely used) offset-iteration parameter to an offset time (in s):
112        can easily recover previous offset-iter effect by setting offset-time
113        (offlineTimeOffset) to offset-iter x deltaToffline;
114      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
115        in KPP as part of surface buoyancy forcing) in offline run.
116      - fix ptracers KPP non-local term in the case where KPP is re-computed.
117    o OpenAD
118      - Adding preliminary ggl90 test to OpenAD verification.
119        Config. with ggl90 currently diverges after 64 time steps
120        so will need more work to become more stable
121      - Adding preliminary kpp test to OpenAD verification.
122        required small tweakes in kpp_routines.F
123      - Merge and update from Krishna Narayanan's contrib area:
124        * Add one variable for preliminary OpenAD DIVA
125        * Add replacement time-stepping for OpenAD DIVA
126        * genmake2 flag -diva (but only for OpenAD; preliminary)
127        * required modifs for OAD_support
128        successful preliminary test for tutorial_global_oce_biogeo/
129    o pkg/seaice:
130      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
131      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
132        delta with a smooth function in s/r seaice_calc_viscosity
133        (no effect on EVP)
134      - rename local suffix "sqr" into "sq" for more consistent variable names
135    o pkg/seaice:
136        add new parameter SEAICE_deltaMin that is used ***only***
137        for regularizing Delta (and nothing else, like the parameter
138        which is also used for all sorts of things SEAICE_EPS).
139        Defaults to SEAICE_EPS for backward compatibility only.
140    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
141        the wrong key by inialising it before use -> fixes a recomputation
142        problem but does not fix the gradient
143    o pkg/layers:
144      - move resetting of flux arrays to outside the iLa loop
145        (this caused layers_diapycnal to not work with more than one layer coord.)
146      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
147    o pkg/layers:
148      - remove from common block 3D layers fields (used to diagnose transport
149        in tracer coords) and declare them as local arrays in layers_calc.F
150    o pkg/seaice:
151      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
152        in lab_sea forward experiment (changes results -> updated)
153      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
154    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
155       computations; for SEAICE_VECTORIZE_LSR
156      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
157        sweep to the outside,
158      - remove store directives and add "CADJ loop sequential" directives
159        in analogy to model/src/solve_tridiagonal.F
160      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
161        boundaries to yield more readable code. This has also the charming side
162        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
163        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
164        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
165        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
166        an additional option)
167       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
168       but the adjoint gradients (which are affected by this change) still explode.
169    o coupler (atm & ocn _compon_interf):
170      - avoid using Exch2 IO mapping if not suitable.
171    
172    checkpoint65m (2015/06/15)
173    o pkg/layers:
174      - clean-up old parameters setting (from Sep 2012):
175        + remove old parameters setting from common block (declared locally);
176        + stop if any old parameter is mixed with new parameters;
177        + check for valid or consistent parameter setting (e.g., layers_name)
178      - check that layers_bounds for Pot.Density are in the right range;
179        this is supposed to catch un-updated setting after recently shifting
180        potential density field "prho" by -1000 (now in "sigma" scale).
181    o pkg/layers:
182      - Added missing call to layers_fill for keeping track of tottend in
183        pkg/diagnostics/diagnostics_fill_state.F
184    o pkg/layers:
185      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
186        of diapycnal fluxes
187    o pkg/layers:
188      - reverted changes to interpolation to previous treatment; there
189        was never actually a problem
190    o pkg/layers:
191      - fix interpolation of layers tracers in the presence of partial cells
192      - add lots of new functionality to compute water mass transformation
193        (enabled by CPP flag LAYERS_THERMODYNAMICS)
194      - add new calls from main code (diags_oceanic_surf_flux.F,
195        thermodynamics.F, impldiff.F) and gad to save the necessary fields
196        for layers_thermodynamics calculations
197    o pkg/ptracers:
198      - add capability of stepping a passive tracer forward without advection
199        by setting PTRACERS_advScheme to 0.
200    o pkg/diagnostics:
201      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
202    o pkg/layers:
203      - shift potential density field "prho" by -1000 for density layer averaging so
204        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
205        Note that density bin boundaries (layers_bounds in data.layers) have
206        to be set accordingly (i.e., shifted, in sigma scale).
207    o pkg/layers:
208      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
209      - fix calculation of layer non-weighted velocity and layer probability
210      - add diagnostics for pot.density used for layer averaging
211    o pkg/seaice:
212      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
213        positiveness, modify a few comments and improve variable names,
214      - the changed computation of deltaC affects most seaice-related
215        experiments at the truncation level.
216        seaice_itd.thermo is affected by far the most, with
217        only 7 digits of agreement remaining; update experiments.
218    
219    checkpoint65l (2015/05/04)
220    o pkg/shelfice:
221      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
222        factor drKp1 to zero where it is negative (ie. do not use
223        SHELFICEBoundaryLayer if hFacC>1)
224      - the same for factor drLoc in shelfice_forcing.F
225    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
226        with modules in ptracers, when using testreport option "-small_f"
227    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
228      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
229    o verification/testreport
230      - add new option -small_f
231        with this option testreport first makes the target small_f (*.f files)
232        before running make (all). This is useful for explicit inlining when
233        all sources need to be full available.
234    o pkg/exf/exf_interp.F:
235        remove previous changes related to reverse (decreasing) input grids latitude
236    
237    checkpoint65k (2015/04/01)
238    o pkg/ecco:
239        fix missing cosphi initialization; use eccoiter in place of optimcycle;
240        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
241        instead of active read/write
242    o pkg/ctrl:
243        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
244        instead of active read/write.
245    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
246        return if .NOT.useAUTODIFF
247    o pkg/seaice: add CPP brackets (cost function related).
248    o model/src:
249        add useAUTODIFF run time switch.
250    o pkg/exf/exf_interp.F:
251        add code to allow input grids with latitude starting in the north (i.e. when
252        j=1 corresponds to northern edge of field); modify global_with_exf to test
253        this feature.
254    o verification/testreport:
255      - replace "grep -A3" with POSIX conformal sed command, because there are
256        implementations of grep that cannot do contextual searches
257      - replace "cat -n" by "nl" (two occurrences), because not all implementations
258        of "cat" have the option "-n"
259    o model/src:
260        add new file gsw_teos10.F that contains 3 functions, more or less a copy
261        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
262        convert from conservative to potential temperature. For now they are not
263        called anywhere.
264    o pkg/ggl90: make "useIDEMIX" useful
265      - re-organize code in s/r ggl90_calc a little to move computations that
266        are different for idemix into separate loops (changes verification
267        experiment idemix at truncation level, 12 digits remain -> updated)
268      - requires 2 new 2D fields KappaM, verticalShear
269      - make hFacI and recip_hFacI local 3D variables that are passed to
270        s/r ggl90_idemix
271      - fix and improve some comments
272    
273    checkpoint65j (2015/02/25)
274    o pkg/openad
275      - synchronize seawater.F with version in model/src: replace routine
276        body of sw_temp by calling sw_ptmp and fix/add a few comments.
277    o pkg/mnc:
278      - change default value of pickup_read/write_mnc params to FALSE
279        (since few features are missing in reading MNC pickup files).
280    o model/src:
281      - change default (background) vertical diffusivity for salt to be the
282        temperature (background) vertical diffusivity.
283      - change background vertical diffusivity in vertical mixing pkgs ggl90,
284        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
285        This makes ptracers default diffusivity (that uses salt diffKr) more
286        consistent with vertical mixing schemes.
287    o verification/testreport:
288      - fix typo in "-pcls" option ;
289      - put temp files in /tmp (instead of in local dir)
290      - add option "-ncad" to use genmake2 new option "-nocat4ad"
291      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
292    o pkg/ggl90 (idemix code):
293      - apply few fixes ; add some missing "_d 0" ; update output of exp.
294        global_ocean.90x40x15.idemix
295    o OpenAD
296      - enable active file I/O and begin removal of work-around code
297        for OpenAD for handling control variables (memory vs. active files)
298      - new CPP options file OPENAD_OPTIONS.h
299      - revert to genarr2d gradient check for hs94.1x64x5
300      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
301      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
302    o tools/genmake2:
303      - add option for an alternative Makefile (from Martin) where multiple
304        source files are sent to TAF (instead of all in one file).
305    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
306      - code provided by Carsten Eden as an extension of ggl90
307      - so far the code is turned on within ggl90 by setting a CPP-flag at
308        compile time; a runtime flag implementation is not yet complete
309      - tested in new verification experiment global_ocean.90x40x15.idemix
310    o verification:
311      - reduce length of the AD test run by half for experiments
312        global_ocean.cs32x15 (std + thsice) and isomip
313      - enable active file I/O for OpenAD, adjust verifications accordingly
314      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
315    o verification/testreport:
316      - fix two non-POSIX sed statements so that there are no error messages
317        on Mac OS X
318      - replace hostname -s with hostname | sed 's/\..*$//'
319    o model/src/seawater.F:
320      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
321        (following the matlab code), which would have avoided the bug caught
322        by Matt (see below) in the first place
323    o pkg/shelfice:
324      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
325        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
326      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
327        ice-shelf case (i.e., within surface level).
328      - add config summary in shelfice_check.F
329      - remove global variable recip_SHELFICElatentHeat and replace by a local
330        variable recip_latentHeat
331      - introduce diagnostics for friction velocity uStar (in case of
332        SHELFICEuseGammaFrict)
333      - change verification experiment isomip.htd:
334        + start from pickup (as input_ad at nIter0=8640)
335        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
336        + test SHELFICEuseGammaFrict = .TRUE.
337        + test SHELFICEadvDiffHeatFlux = .TRUE.
338    o model/src:
339      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
340        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
341        update output of experiments global_with_exf.yearly and isomip (all 6).
342    o pkg/shelfice:
343      - change setting of kTopC to also be zero where there is no ice-shelf.
344      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
345        ice-shelf is.
346      - first attempt to get RealFreshWaterFlux effects: for now, only without
347        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
348    o pkg/seaice: add the option to prescribe a fixed thickness PDF
349      for thermodynamic calculations
350      - because of divisions of the type 7/7 not exactly equal to 1, this change
351        affects results of some verification experiments by up to 4 digits:
352        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
353        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
354        adjoint: lab_sea, lab_sea.noseaicedyn
355        -> updated
356    
357    checkpoint65i (2015/01/23)
358    o model/src:
359      - change units of frictionHeating field from W to W/m^2
360      - fix bug in frictional heating from stratospheric drag in
361        S/R ATM_PHYS_TENDENCY_APPLY_V
362      - with synchronous time-stepping: move resetting to zero of frictionHeating
363        field from load_fields_driver.F to thermodynamics.F ;
364      - add diagnostics for frictional heating.
365    o model/src & gmredi K3D:
366      - add frictionHeating field to pickup-files (for synchronous time-stepping)
367      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
368      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
369        and name in pickup file).
370      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
371    o model/src:
372      - move (from ini_forcing.F) initialisation of all arrays in header file
373        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
374        (since Nov 2012) with option selectAddFluid=1.
375    o pkg/shelfice:
376      - change units (+ document) of newly added field "shelfIceMassDynTendency"
377      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
378    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
379    o pkg/seaice: two new runtime parameters:
380      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
381        long overdue
382      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
383        parameterization of tensil stress for fast ice (does not do anything yet)
384    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
385        for LSR: move checking overlaps out of JFNK-if-block
386    o pkg/atm_phys:
387      - move copy of grid and dynamical fields out of atm_phys_driver.F into
388        new S/R ATM_PHYS_DYN2PHYS.
389      - fix level height for Linear Free-Surf case (to be consistent with
390        fixed-in-time pressure levels).
391    o pkg/mom_common (bottomdrag):
392      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
393        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
394        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
395    o pkg/shelfice (u/v_drag):
396      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
397      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
398        (now similar to shelfice_u_drag.F)
399      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
400        from mom_vecinv.F (similar to mom_fluxform calls).
401    o pkg/mom_common (bottomdrag):
402      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
403      - add options for alternative discretisation of velocity norm in quadratic
404        bottom drag: averaging of grid-cell-center KE to U.point and V.point
405        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
406        improves when averaging only the other component (e.g. vVel for U bottom
407        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
408      - add options (bottomVisc_pCell) to account for partial-cell in bottom
409        friction (no-slip BC) thus getting the true distance from the bottom;
410        off by default since this also reduces model stability (explicit bottom
411        friction). Changes produce different machine truncation with linear-drag
412        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
413        front_relax (bvp & mxl, 10 & 11 digits).
414    o model/src & mom pkgs:
415      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
416        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
417      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
418        just copy level Nr value to level Nr+1.
419    o doc:
420      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
421    o pkg/streamice:
422      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
423        SHELFICE.h: move array shelficemass to init_varia, initialise
424        from array shelficemassinit, which is set in init_fixed and
425        has option to be set from file; introduce array
426        shelficeMassDynTend array, set thru file in init_fixed
427      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
428        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
429        pkg/streamice
430      - shelfice_thermodynamics.F: call shelfice_step_icemass if
431        SHELFICEMassStepping = .true.
432      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
433    
434    checkpoint65h (2014/12/17)
435    o verification/global_ocean.90x40x15, global_ocean_ebm:
436      - update to generic controls.
437    o pkg/ctrl:
438      - ctrl_map_ini_genarr.F: test for igen>0
439      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
440      - move gentim2d part of ctrl_map_ini_genarr.F to
441        new separate routine : ctrl_map_ini_gentim2d.F
442      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
443        add time variable weights and cyclic controls (time mean,
444        seasonal cycle, etc) capabilities to gentim2d
445    o pkg/ecco:
446      - move reading of error, conversion to weights from
447        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
448    o global_oce_llc90, cs32:
449      - activte sbo.
450      - CTRL_SIZE.h : add maxCtrlProc.
451      - activate the new genctrl capabilities.
452      - update following reorganization of global_oce_input_fields.tar.gz  
453    o pkg/ctrl/ctrl_ad_diff.list:
454      - add missing ctrl_init_rec.f
455    o tools/OAD_support/keepOriginal:
456      - add ctrl_init_rec.F
457    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
458      - avoid recomputations of xx_gentim2d_dummy.
459    o momentum diagnostics:
460      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
461        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
462    o pkg/seaice/seaice_lsr.F:
463      - fix computation of BU/BV, make sure they are non-zero, only necessary
464        for cubed sphere exchanges and SEAICE_OLx/y>0.
465        This makes calling s/r fill_cs_corner_rl obsolete (removed).
466    o verification/global_ocean.cs32x15/input.seaice
467      - add test for strong implicit coupling and restricted addtive Schwarz
468        methods for LSR
469      - update results/output.seaice.txt
470    o verification/tutorial_global_oce_biogeo:
471      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
472        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
473        update output_adm,_oadm,_tlm.txt
474    o pkg/dic:
475      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
476      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
477        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
478    o verification/tutorial_global_oce_biogeo:
479      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
480        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
481        update output_adm,_oadm,_tlm.txt
482    o eesupp/src:
483      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
484        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
485    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
486      LSR (following Hutchings et al. 2004)
487      - introduce zetaZ as a global variable (requires adjustments in
488        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
489        in seaice_calc_viscosities.F
490      - new flag SEAICEuseStrImpCpl (default off)
491      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
492        momentum equations
493      - JFNK-solver (preconditioner) adjusted to allow using this method
494        (where it does not have any positive effect)
495    o pkg/seaice
496      - add overlap for restrictive additive Schwartz method also to LSR, but
497        turn it off by default (because it only seems to work for non-cubed
498        sphere/llc topologies)
499    o pkg/autodiff
500      - add extra exchanges in addummy_in_steppging also for mnc output
501    o pkg/seaice:
502      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
503        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
504    o pkg/obcs:
505      - add option to specify domain-connected piece Id along OB though files
506        (for now, only used to diagnose PhiVel; default =1 -> global correction)
507      - modify obcs_diag_balance.F to process each connected-part separately;
508        exclude OB where Id = 0 but keep the full divergence there (-> constant
509        Psi along this portion of OB and all inflow derived from grad(Phi))
510      - add example of OB-conect files in verification/so_box_biogeo/input.
511    o pkg/diagnostics:
512      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
513      a) use non zero matrix element across OB and solve for Phi 1 grid point
514         outside OB (i.e, where tracer OBCS are applied).
515      b) global imbalance of inFlow/outFlow across OB: instead of modifying
516         velocity across OB, spread it uniformly along the OB in the RHS.
517    
518    checkpoint65g (2014/11/19)
519    o pkg/diagnostcis:
520      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
521    o pkg/my82,pp81,kl10:
522      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
523        field diffKr as background diffusivity to set minimum diffusivity value.
524    o pkg/seaice:
525      - add new parameter SEAICEuseEVPrev (for revisited EVP by
526        Bouillon et al 2013)
527      - add SEAICE_evpAlpha/Beta to namelist
528      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
529        involve trivial re-ordering of divisions/multiplications that should not
530        have any effects, but ... they do change the results of lab_sea.hb87 so
531        that only 2 digits of agreement remain, in line with the general
532        instability/fragility of the evp-code. For now, I do not care and just
533        update the verification experiment
534    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
535      - remove xx_genarr2d_numsmooth etc
536      - use xx_genarr2d_preproc etc instead
537      - carry out smooth_correl2D at initialization stage rather than during
538        time stepping.
539      - get smoothOpNb from xx_gentim2d_preproc
540    o global_oce_cs32 :
541      - add test of generic ecco capabilities.
542    o pkg/exf/exf_getsurfacefluxes.F :
543      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
544    o pkg/ctrl,ecco :
545      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
546        is defined.
547    o pkg/seaice: add diagnostics for Delta (deformation parameter)
548    o model/src:
549      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
550        diffusivity (background) is specified but ignored.
551    o verification:
552      - in testreport, convert hostname to lower case for default output dir name
553    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
554    o pkg/dic: add modifications from Hajoon:
555      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
556      - light attenuation: add self-shading effect by climatological Chlorophyll
557        (read from file).
558    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
559        compiles when SEAICE_ALLOW_DYNAMICS is undefined
560    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
561        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
562        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
563        approach where CPP_OPTIONS.h includes an omnipotent
564        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
565    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
566        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
567    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
568        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
569        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
570    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
571      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
572      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
573      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
574      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
575    o pkg/ctrl,ecco,exf :
576      - remove variables associated with NON-generic costs,
577        unless ECCO_CTRL_DEPRECATED is defined.
578      - remove NON-generic NON-obcs controls,
579        unless ECCO_CTRL_DEPRECATED is defined.
580    o pkg/ctrl : added ctrl_local_params.h
581    o pkg/ecco : added ecco_local_params.h
582    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
583        experiments, which will progressively be removed once the
584        experiments are revised to use only generic controls/costs.
585    
586    checkpoint65f (2014/10/13)
587    o pkg/ctrl, ecco, seaice : minor changes in headers
588    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
589        cost function and control capabilities added since checkpoint65c.
590    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
591    o pkg/ecco: increase modularity and improve logic
592      - ecco_toolbox.F (new) : basic operations that are often used,
593        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
594        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
595      - cost_gencal.F (new) : determine filnames and records.
596      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
597      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
598        and exploit the above functions leading to more compact code.
599      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
600      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
601        using_ers, using_gfo, using_mdt is now only defined within gencost)
602    o pkg/ecco: extend generic cost capabilities
603      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
604        capabilities via gencost_preproc (+ _c,_i,_r related params),
605        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
606        gencost_outputlevel arguments to cost_generic
607      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
608        and active_read, making room for gencost_preproc to take effect.
609        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
610      - pkg/ecco/cost_generic.F :
611        compute and store misfit maks*(model-data) in localdif that is
612        then used in cost and for output, output misfit if outlev.GT.0
613      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
614        rather gencost_barfile for deciding whether to write barfile
615      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
616      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
617        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
618      - pkg/ecco/ecco_summary.F : report gencost variables
619      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
620    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
621    o pkg/ecco: internal re-organization
622      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
623        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
624        mv relevant variables definition from ecco_cost.h to ecco.h,
625        make sure gencost routines only include ecco.h)
626      - throughout : add missing CCP switches, rm unused variables,
627        and rm un-necessary CPP switches
628      - throughout gencost routines : replace modelstartdate with
629        gencost_startdate when needed
630      - cost_bp_read.F : use arguments, instead of common blocs
631        so that it can be used also by (new) cost_gencost_bpv4.F
632      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
633      - ecco_phys.F : compute etanFull
634      - ecco_readparms.F : rename using_topex as using_tpj, add
635        bpv4-grace to gencost list, initialize added parameters
636      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
637    
638    checkpoint65e (2014/09/28)
639    o pkg/obcs:
640      - replaced the just-added CPP options with run-time variables
641        (see pkg/obcs/OBCS_PARAMS.h for details)
642    o pkg/obcs:
643      - add additional CPP options for sponge boundary layers
644        (see pkg/obcs/OBCS_OPTIONS.h for details)
645    o pkg/atm_phys:
646      - implement simple (obliquity only, assuming circular planet orbit)
647        seasonal cycle for incoming insolation ; used when run-time parameter
648        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
649    o pkg/exf, pkg/ecco, pkg/ctrl:
650      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
651      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
652      - implement gentim2d for xx_tauu, xx_tauv
653    o pkg/ctrl, pkg/ecco :
654      - fix and complement the generic controls implementation
655    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
656        pkg/shelfice/shelfice_thermodynamics.F,
657        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
658        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
659      - add weight in CTRL_GET_GEN calls
660    o pkg/ctrl :
661      - ctrl_get_gen.F : add weight as input parameter, and apply
662        it directly rather than using smooth_correl2Dw (to be retired).
663      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
664    o pkg/ctrl :
665      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
666        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
667      - re-activate ctrl_summary (call in ctrl_init.F)
668    o pkg/ctrl/ctrl_cost_gen.F :
669      - fix CCP brackets, remove un-necessary myiter, mytime
670    o pkg/ecco, pkg/ctrl :
671      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
672      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
673      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
674      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
675    
676    checkpoint65d (2014/09/15)
677    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
678      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
679        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
680    o pkg/ctrl/ctrl_map_ini_genarr.F :
681      - remove compilation failure
682      - replace hard coded example
683      - use ctrl_map_ini_gen2D, 3D
684    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
685      - on/off switch based upon xx_genarr2d_weight,3d
686    o src/packages_init_variables.F :
687      - regroup pkg/estimation calls
688      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
689        (moved to ctrl_init_variables)
690    o cost/cost_init_varia.F :
691      - remove ecco_cost_init_varia
692        (moved to ecco_init_varia)
693    o ctrl/ctrl_init_variables.F :
694      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
695      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
696    o ctrl/ctrl_map_ini.F :
697      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
698        (moved to ctrl_init_variables)
699    o ctrl/ctrl_map_ini_ecco.F :
700      - remove ECCO_PHYS (mv to ecco_init_varia)
701      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
702    o ecco/ecco_ad_diff.list :
703      - add ecco_init_varia.f
704    o ecco/ecco_init_varia.F
705      - new routine
706    o pkg/streamice:
707      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
708        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
709      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
710    o pkg/generic_advdiff:
711      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
712    o pkg/exf:
713      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
714         xxg_precip capability
715      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
716    o pkg/ctrl:
717      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
718    o model/src/load_fields_driver.F :
719      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
720        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
721    o OpenAD verification experiments:
722      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
723        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
724        for now, only in pkgs used in OpenAD verification experiments.
725      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
726        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
727        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
728        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
729    o OpenAD verification tests:
730      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
731      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
732        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
733      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
734        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
735    o model/src & generic_advdiff:
736      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
737        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
738        dynamics requires valid tracer forcing only over tile interior but, for
739        some diagnostics, may need to extend it over 1 point in tile halo region.
740      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
741        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
742        setting in temp/salt/ptracer_integrate.F
743    o pkg/dic:
744      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
745        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
746        in gchem_forcing_sep.F
747    o pkg/autodiff & obcs:
748      - add storage of current OB values for U & V (was already done for T & S).
749    
750    checkpoint65c (2014/08/30)
751    o pkg/dic:
752      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
753        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
754        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
755    o verification:
756      - new experiment testing OBCS and DIC pkgs, using params & output from
757        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
758        passage: take OBCS from the last year of a 2 yrs simulation and initial
759        conditions from t=1.yr while keeping the same forcing.
760    o model/src:
761      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
762        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
763    o pkg/diagnostics (Stats-Diags):
764      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
765        a) refine region where stats are computed, excluding where arrhFac=0 ;
766        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
767        c) extend regional stats over the region edges (for U or V pt location).
768    o pkg/gchem:
769      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
770        pkg/dic is currently changing/updating ptracers values beyond the OB).
771    o verification (hs94):
772      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
773        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
774        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
775        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
776    o pkg/ptracers:
777      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
778        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
779      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
780        with AB-2 code (so that it get tested).
781    o model/src:
782      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
783        with AB-2 code (previously only available with AB-3 code).
784        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
785        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
786        there, by calling CYCLE_AB_TRACER).
787    o pkg/generic_advdiff:
788      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
789        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
790        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
791        S/R temp/salt/ptracers_integrate.F
792    o model/src & pkg/ptracers:
793      - remove common block variables gT,gS (in DYNVARS.h), except when
794         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
795      - remove common block variable gPtr.
796    o model/src & pkgs:
797      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
798         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
799         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
800         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
801      + change accordingly all calling S/R.
802      - use local temperature/salinity/ptracer tendency array (without bi,bj)
803        in S/R temp/salt/ptracers_integrate.F
804    o pkg/seaice:
805      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
806        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
807      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
808        in seaice_lsr
809      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
810        in s/r seaice_lsr_calc_coeffs
811    o pkg/mdsio:
812      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
813        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
814        too long (e.g., > MAX_LEN_FNAM/2 )
815    
816    checkpoint65b (2014/08/12)
817    o pkg/matrix:
818      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
819    o model/src:
820      - fix initialisation of geothermalFile; compile geothermal-flux code in
821        natl_box verification experiment.
822    o model/src & pkg/down_slope:
823      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
824      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
825        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
826        results at machine truncation level: update output of experiments
827        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
828    o pkg/diagnostics (Stats-Diags):
829      - do not cumulate the full volume when DIAGNOSTICS_FILL is
830        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
831        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
832        times (but Min,Max and StD are still wrong).
833    o model/src:
834      - add geothermal flux forcing: read in ini_forcing.F as time-constant
835        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
836    o model/src:
837      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
838        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
839        arrays are already updated while adjustments (filters, conv.adjustment) are
840        still applied later, in S/R TRACERS_CORRECTION_STEP.
841    o model/src:
842      - store in common bloc array "rhoInSitu" the virtual potential temperature
843        anomaly that is used to compute geopotential: this make the atmos code
844        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
845    o pkg/seaice/seaice_lsr.F
846      - rename integer variable ilcall to ipass (that's what it is called
847        in the residual diagnostics
848      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
849        default) for improved non-linear convergence of the first few steps
850      - adjust a few comments and add new ones to explain some of the store
851        directives
852    o pkg/generic_advdiff (& ptracers):
853      - re-work the code to check for valid advection scheme and for minimum
854        size of overlap (now stored in local common bloc in gad_advscheme.F)
855    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
856      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
857      - add an auxilliary variable "bet" and fix store directives and keys in
858        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
859        less exact gradients in my tests); but there are still
860        recomputation warning (although gradients are sort of OK), when
861        SEAICE_LSR_VECTORIZE is not defined, so this flag and
862        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
863      - update verification experiments lab_sea.
864      - change some comments in S/R seaice_calc_viscosities
865    o model/src:
866      - if staggerTimeStep=T, always apply exchange to velocity field in
867        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
868        (independent of using multi-dim advection or not); no effect on FWD run
869        but affects AD results (at machine truncation level): update output of
870        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
871        and isomip (oad: 12.d).
872    o pkg/generic_advdiff:
873      - stop if doAB_onGtGs is set to FALSE but ignored
874      - refine warning related to stability of tracer time-stepping
875        regarding internal wave dynamics.
876      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
877        on staggerTimeStep & implicitIntGravWave (will now get a warning
878        if potentially unstable).
879    o pkg/kl10:
880      - add new pkg "kl10" for mixing due to internal wave breaking, from
881        http://www.sciencedirect.com/science/article/pii/S1463500310000144
882        (contribution from Jody Klymak), tested in verification experiment
883        verification/internal_wave/input.kl10/
884    o isomip experiment:
885      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
886        (input.htd) and update the output.
887    o cd_code experiments:
888      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
889        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
890        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
891        update the corresponding output.
892    o pkg/seaice:
893      - reduce the number of include files and store directives in
894        S/R seaice_lsr_tridiagu/v
895      - change the order of loops in one case in S/R seaice_lsr_tridiagv
896        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
897        get rid off one store directive (a TAF bug?)
898      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
899        S/R seaice_lsr_tridiagv to change the loop range for consistency
900      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
901      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
902        S/R seaice_lsr_tridiagu/v (requires update of
903        offline_exf_seaice/input.dyn_jfnk)
904    
905    checkpoint65a (2014/07/27)
906    o model/src:
907      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
908        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
909        (topo in p-coords, ice-shelf in z-coords); update output of experiments
910        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
911    o model/src:
912      - collect momentum forcing tendency into local 2-D array (passed as argument
913        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
914        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
915        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
916      - collect T & S forcing tendency into local 2-D array (passed as argument to
917        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
918        affects results at machine truncation level (e.g., ocean: if using
919        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
920        correction due to vertical advection).
921      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
922        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
923        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
924        obcs_ctrl (ad & fwd grd @ 12 & 7).
925    o pkg/ptracers & diagnostics:
926      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
927        title (to avoid some unexpected truncation); sort out ptracers diags units.
928      - collect ptracer forcing tendency into local 2-D array (passed as argument
929        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
930    
931    checkpoint65 (2014/07/18)
932    o pkg/fizhi:
933      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
934        affects results at machine truncation level. Update output of experiments
935        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
936    o pkg/seaice: more clean up
937      - rename TAF common block tapes to be more consistent and remove
938        unnecessary duplicates
939      - add store directives to remove more recomputations, but use smaller
940        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
941        The idea behind this flag is to reduce the memory footprint when the
942        adjoint of the LSR is not required. As of now, defining the flag
943        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
944        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
945        For experiment offline_exf_seaice, this means on a linux box with gfortran
946        nearly a factor of 10 (but keep in mind there is mostly seaice code in
947        this experiment):
948        > size mitgcmuv_ad
949        text    data        bss     dec        hex
950        5100659 1216  220458952  225560827  d71c8fb
951        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
952        but only a moderate increase of 36% for global_ocean.cs32x15:
953        text    data        bss     dec        hex
954        6695027 1648 1014578664 1021275339 3cdf6ccb
955        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
956      - note: there are still recomputations in global_ocean.cs32x15 and
957        offline_exf_seaice and the gradient agreement changes (gets a
958        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
959      - in general, the AD gradients still are wrong
960    o OpenAD
961      - clean up code_oad/ directories somewhat by moving files
962        dontCompile, dontTransform, keepOriginal to OAD_support/
963    o model/src:
964      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
965        (not currently tested): add dissipation terms before NLFS rescaling of
966        tendencies (previously done after).
967    o pkg/diagnostics:
968      - write stats-diags in ascii file with more digits (same as in monitor).
969    o pkg/down_slope:
970      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
971        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
972    o model/src:
973      - new file "apply_forcing.F" containing all the code previously in
974        external_forcing.F, but with new argument list: pass, as new argument,
975        the current level tendency array to update (instead of a direct update
976        of the common bloc array). Change the corresponding calls.
977      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
978        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
979    o pkg/seaice/seaice_lsr, a little bit of clean up
980      - rearrange some code blocks, so that now all calculations for
981        setting up the right-hand-sides done within one single block
982        (I find that easier to read and understand)
983      - rearrange freedrift-code to reduce the number of ifdefs
984      - adjust some indentations and comments
985    
986    checkpoint64z (2014/07/10)
987    o model/src and several pkgs:
988      - change argument list of all S/R called from external_forcing.F and
989        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
990        to pass, as argument, the current level tendency array to update
991        (instead of a direct update of the common bloc array).
992      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
993      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
994    o pkg/seaice/seaice_lsr.F
995      - always initialize local arrays in seaice_lsr_tridiagu/v
996      - add more local tapes to seaice_lsr_tridiagu/v
997      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
998        keep it in bi/bj loop; this seems to be essential
999      - gradients are still wrong but only by 4-7 orders of magnitude
1000        instead of 15 orders of magnitude, lab_sea improves a little
1001    o pkg/seaice
1002      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1003        generates unnecessary code in seaice_lsr_ad
1004      - add more store directives in seaice_lsr to avoid unnecessary code
1005        in seaice_lsr_ad
1006      - exclude some residual computations in seaice_lsr when
1007        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1008        in seaice_lsr_ad
1009      - add more storing, a new tape (model/src/the_main_loop.F) and
1010        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1011        and klockey should be checked by a specialist)
1012      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1013        and update lab_sea after previous changes in pkg/seaice below
1014    o pkg/autodiff:
1015      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1016        viscFacInAd : run time parameters allowing for adjoint switches
1017        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1018    o pkg/ecco:
1019      - introduce cost_gencost_boxmean.F that computes a box mean
1020        temperature (for use in adjoint sensitivity studies).
1021    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1022    o pkg/mom_common/mom_calc_visc.F:
1023      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1024    o pkg/seaice/seaice_summary.F:
1025      - statement for SEAICEadjMODE now in autodiff_readparms.F
1026    o pkg/seaice:
1027      - remove some store directives and add new ones in an effort to get
1028        finally rid off the recomputation warnings. This is successful
1029        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1030        defined (i.e. no extensive recomputation warnings left), but there
1031        are still too many recomputations on the solver iteration level
1032      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1033      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1034        SEAICE_SIZE.h
1035      - add a store directive in S/R seaice_calc_viscosities
1036    o pkg/seaice (ITD code):
1037      - fix definition of Hlimit for multi-threaded case
1038      - use double precision arithmetic to compute Hlimit: this affects results;
1039        update output of experiment seaice_itd.
1040    o replace content of verification/seaice_itd
1041      - instead of a 1D column use the configuration of offline_exf_seaice
1042        to test the ice thickness distribution code with ridging
1043      - this is a first shot at this experiment
1044      - change of some defaults of ridging parameters SEAICEhStar (from
1045        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1046        and lot of new comments.
1047    
1048    checkpoint64y (2014/06/20)
1049    o pkg/seaice/seaice_reg_ridge.F:
1050      - modify the regularization of very small volumes of ice; only check
1051        total volume HEFF, and do not apply correction to individual ice
1052        classes because that leads to funny patterns in the heat and fw-fluxes
1053        into the ocean. Adjust seaice_itd/results/output.txt
1054      - replace nITD by SEAICE_multDim in loop-ranges
1055    o pkg/exf:
1056      - add code to process the case field period = -12. with UV interpolation.
1057      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1058        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1059    o verification/global_with_exf:
1060      - switch all fields period to -12. (was previously untested) in input/data.exf
1061        (but keep secondary test ".yearly" unchanged); update the reference output.
1062    o pkg/cal:
1063      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1064    o pkg/exf:
1065      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1066        to replace logical switch "exf_verbose"
1067      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1068    o pkg/sbo:
1069      - update from Katherine Quinn: evaluate mass directly from density and SSH
1070        (budget using Finite Volume method) instead of from bottom pressure.
1071      - allow testreport to collect few selected SBO output ; tested in exp.
1072        global_ocean.90x40x15 (after updating the results, to include SBO output).
1073      - fix some multi-threading issues (in output part).
1074    o model/src & most packages:
1075      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1076      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1077        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1078        "data.{pkg}" exist ; and leave the S/R (return) just after.
1079      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1080        + call LAND_READPARMS from packages_readparms.F
1081    o pkg/seaice:
1082      - remove code that resets useThSice in S/R seaice_readparms and
1083        replace it by a warning in S/R seaice_check
1084      - remove parameter MULTDIM, replace with nITD and runtime
1085        parameter SEAICE_multDim (still hard-wired to nITD if
1086        SEAICE_ITD is defined)
1087    
1088    checkpoint64x (2014/05/24)
1089    o verification/lab_sea:
1090      - update adjoint and TLM output following changes to pkg/salt_plume
1091      - un-do the update after putting back local recip_Cp in few places.
1092    o pkg/salt_plume: modifications by An Nguyen:
1093      - add capability to do brine rejection (salt-plume) as function of
1094        volume+tracers (instead of only salinity tracer).
1095      - conserve volume by exchanging volume from each kLev to above to
1096        accommodate in-coming brine volume
1097      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1098      - switch KPP surf buoyancy due to brine forcing to 3-d
1099        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1100      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1101      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1102        in East/West Arctic.
1103    o pkg/sbo:
1104      - incorporate modifications from Katherine Quinn to enable the use of sbo
1105        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1106        output for future testreport verification (unfinished).
1107    o pkg/atm_phys:
1108      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1109        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1110        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1111    o pkg/seaice
1112      seaice_calc_ice_strength.F: modify expression to avoid divisions
1113        (affects truncation)
1114      seaice_do_ridging.F: clean up the insectarium
1115      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1116      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1117      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1118      - add some debugging information and error messages (warnings)
1119    o model/src: modifications relatd to atmosphere p*:
1120      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1121      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1122        of vertical profile tRef in geopotential background and anomaly.
1123      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1124        and pkg/atm_phys.
1125      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1126        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1127    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1128    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1129        not used right now, but can be used in BGC packages to fix conservation.
1130    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1131        other packages too.
1132    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1133        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1134    o model/src:
1135      - since we have several heat capacity (even in model/src), define "recip_Cp"
1136        as local variable (no longer in common block) to avoid any confusion.
1137      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1138    o pkg/exf:
1139      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1140        air density as function of air Temp, Humidity and atm pressure.
1141    
1142    checkpoint64w (2014/05/02)
1143    o verification:
1144      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1145        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1146        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1147        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1148        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1149    o model/src: for atmosphere in p* coords:
1150      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1151      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1152        but not yet activated.
1153    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1154      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1155      - this changes the results (but not for any verification experiment, because
1156        none tests this), but avoids having an extra field in the restart files
1157    o pkg/seaice: remove global variable TICE (not needed)
1158      - replace by TICES or local variable where necessary (cost_seaice_test,
1159        seaice_diagnostics_state)
1160      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1161      - use specific read/write routines for reading and writing individual leves
1162        of a multilevel field
1163    o pkg/ctrl & model/inc:
1164      - move additional anomaly fields of control vars (related to options:
1165         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1166        from DYNVARS.h into new header file: CTRL_FIELDS.h
1167    o pkg/seaice: some small modifications to the ridging code
1168      - make fw2ObyRidge a global variable and add the freshwater flux to
1169        seaice_growth
1170      - pass actual thickness from seaice_prepare_ridging, so that it is
1171        computed only in one place and compute it in the same way as in
1172        seaice_growth
1173      - initialise more fields in seaice_do_ridging that where cause floating
1174        point exceptions over land
1175    o pkg/seaice: preparations for ridging code and first real ridging code
1176      - move most of "PART 1" of S/R seaice_growth into a new and separate
1177        S/R seaice_reg_ridge that will both regularize the state variable after
1178        advection call the actual ridging routine;
1179      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1180        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1181      - remove ridging code from seaice_advdiff
1182      - clean up remaining part 1 of seaice_growth in an attempt to make it
1183        more readable (this is probably subjective)
1184      - call seaice_itd_redist once in the initialisation phase to have the initial
1185        conditions in the correct category
1186      - finally: add new ridging routine for ITD code
1187    
1188    checkpoint64v (2014/04/11)
1189    o pkg/ecco:
1190      - add runtime parameters mdt[start,end]date[1,2]
1191      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1192    o pkg/seaice:
1193      - make deltaC a global variable, so that it can be used in ridging code
1194      - first step towards ridging: introduce new routines that compute
1195        ice strength based on ridging parameters
1196      - add diagnostic for HSNOWITD
1197      - add opnWtrFrac as a global variable (required for ridging scheme)
1198    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1199      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1200        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1201    o verification/hs94.1x64x5:
1202      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1203      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1204    o autodiff:
1205      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1206        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1207        For now, only in pkgs used in verification/hs94.1x64x5.
1208      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1209        which are specific to TAF/TAMC).
1210      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1211        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1212        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1213      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1214        building mitgcmuv_ad (make adAll).
1215    o pkg/ecco:
1216      - cost_gencost_seaicev4.F:
1217         reformulate proxy cost as function of sst and local param SEAICE_freeze
1218         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1219      - add stop statement if old names siv4-[sst,vol] are used
1220      - add snapshots + cost reports for atmospheric longwave
1221      - remove factor 0.1 in front of wtau[u,v]
1222      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1223         ALLOW_TMI_SST_COST_CONTRIBUTION
1224    o pkg/atm_phys:
1225      - add some diagnostics for Short-wave and for convection S/R.
1226    o pkg/seaice/seaice_growth:
1227      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1228        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1229      - rearrange loop order for better vector code in the same code block
1230      - rewrite the floeDiameter formula to have fewer divisions
1231      -  (miraculously) none of this changes the results of seaice_itd
1232    o pkg/smooth:
1233      - move param smooth2Ddiffnbt to pkg/ecco
1234    o pkg/salt_plume:
1235      - salt_plume_frac.F:
1236         clean up local param names
1237         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1238    o pkg/rw:
1239      - add RS version of S/R READ_MFLDS_LEV.
1240    o pkg/streamice:
1241      - fix the restart test by writing/reading pickup_streamice files.
1242    o pkg/seaice:
1243      - refine checks for jfnk-related parameters
1244      - comment out if statement with SEAICEuseIMEX parameter as long as there
1245        is no IMEX code to avoid confusion and surprises
1246    
1247    checkpoint64u (2014/03/07)
1248    o verification/MLAdjust:
1249      - rename secondary test suffix:
1250         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1251         0.leithD -> AhFlxF  + switch to flux-form
1252         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1253         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1254    o pkg/mom_vecinv:
1255      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1256        to be before mom_calc_visc.F)
1257      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1258      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1259        this is simpler for the adjoint and for diagnostics.
1260    o model/src + pkg/momentum:
1261      - add input files for  2-D additional Western and Southern cell-edge wall
1262         (e.g., to add "thin-wall" where it is =1).
1263      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1264        using 2nd hFacZ that is computed from initial (fix domain) hFac
1265      - known limitations of thin wall implementation: not yet coded for sigma
1266        coords; not working with CD-scheme neither.
1267    o pkg/seaice:
1268      - rename recently introduced parameters from (wrong name) AB to
1269        BDF (backward difference time discretisation)
1270      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1271    o tools/adjoint_options:
1272      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1273    
1274    checkpoint64t (2014/02/01)
1275    o pkg/ecco
1276      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1277        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1278      - replace hard-coded record number and period which only work for monthly
1279        with read-in runtime param that works for other periods (month,day,year)
1280    o pkg/thsice
1281      - corrected store directive fixes thsice adjoint gradient checks
1282    o genmake2 & testreport:
1283      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1284        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1285        Update testreport accordingly. No need to set "export OPENAD=true"
1286        in adjoint_options/adjoint_oad anymore (will be removed later).
1287    o pkg/shelfice:
1288      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1289        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1290        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1291    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1292      - Changes to make GENARR more modular (i.e. invisible if not used)
1293    o model/src/temp_integrate.F and salt_integrate.F
1294      - re-include store directives that were removed on Dec 27th.
1295    o model/src/external_forcing_surf.F
1296      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1297        seaice_model in the adjoint that is problematic when seaice_model is
1298        turned off in the adjoint. The resolved issue dated back to July when
1299        EXTERNAL_FORCING_SURF call was moved.
1300        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1301    o pkg/exf/exf_check.F
1302      - fix a small bug again (originally found by Wentao Liu, now found again)
1303      - streamline error output
1304    o pkg/streamice and aim_v23:
1305      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1306        Apple's /usr/bin/cpp knows what to do:
1307        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1308        Target: x86_64-apple-darwin13.0.0
1309    
1310    checkpoint64s (2014/01/05)
1311    o tools/adjoint_options:
1312      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1313        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1314    o model/src:
1315      - remove some unnecessary TAF storage directives in forward_step.F and
1316        in dynamics.F (note: not always removed by TAF, e.g., double storage
1317        of kappaRU,kappaRV in former version of dynamics.F).
1318    o model/src & pkg/ptracers:
1319      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1320        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1321        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1322      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1323      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1324      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1325    o useSingleCpuInput separates single-CPU input from single-CPU output;
1326        for now only implemented for in exf_interp_read.F
1327    o verification/advect_xy:
1328      - fix missing EXCH call in local version of ini_salt.F and update output.
1329    o momentum diagnostics:
1330      - fix which deltaT is used in Total-Tendency diagnostics.
1331      - fix typo in diagnostics for momentum tendency from AB.
1332    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1333        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1334    
1335    checkpoint64r (2013/12/08)
1336    o verification/*/results:
1337      - Update reference output of experiments that were passing with just 13 digits
1338         (make it easier to detect future changes in results)
1339    o model/src & pkg/ptracers:
1340      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1341        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1342        to inside ptracers_integrate.F ; remove ptracers_advection.F
1343    o coupling interface pkgs:
1344        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1345      - change the config check to test the agreement of Ocean Depth
1346        with ATM land/sea mask (instead of ATM orography);
1347      - send to coupler the number of coupler time-steps to do for this run:
1348        this allows to check for consistency and don't need anymore to be
1349        specified in parameter file "data";
1350      in coupler:
1351      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1352      - improve report to log-file of config setting (pass log-file unit to few S/R)
1353    o pkg/compon_communic:
1354      - add coupling send/receive for non-tiled integer vector;
1355      - add S/R to check and stop if any proc has an error (similar to
1356        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1357    o pkg/exch2:
1358      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1359        through list of all tiles my proc owns.
1360    o model/src:
1361      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1362        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1363        calling S/R); this affects AD results at machine truncation level:
1364        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1365        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1366    o tools/build_options:
1367      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1368    o coupling interface pkgs:
1369        [compon_communic, atm_compon_interf & ocn_compon_interf]
1370      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1371        to each S/R that needs it; remove un-used variables.
1372      - change component tile registration (cpl_register.F in both compon_interf
1373        and mitcomponent_tile_register.F) to pass the full list of tiles
1374        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1375      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1376        towards coupler global array (unless W2_useE2ioLayOut=F):
1377         a) can now use different tiling between atm & ocn comp.
1378         b) no needs to modify the run-Off map when changing tiling (was needed
1379            even if using the same tiling between atm & ocn).
1380         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1381            full land tiles); not yet tested.
1382      - check for valid mapping from comp. tile to coupler global array
1383      - improve report of tile registration results to log file.
1384    o pkg/exch2:
1385      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1386        tile-registration (CPL_REGISTER);
1387      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1388        store the local bi,bj indices of each tile;
1389      - also print bi,bj in local report to log file;
1390      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1391        Jun 2009 modif of pkg/exch2).
1392    o testing on baudelaire:
1393      - run 2 tests at a time: no significant slow down (since enough cpu) and
1394        get the full set of test done earlier
1395      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1396    o model/src/thermodynamics.F and routines called from it:
1397      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1398        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1399        velocity (outp) by adding bolus velocity.
1400      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1401        mass transport from velocity + lateral grid cell area
1402      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1403      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1404     in thermodynamics.F
1405      - remove k from thermodynamics.F and move it to temp_integrate.F
1406        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1407        loop).
1408      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1409        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1410        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1411        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1412      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1413        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1414        tutorial_tracer_adjsens (+ TLM output).
1415    o tools/OAD_support and (verification/*/) code_oad:
1416      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1417        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1418      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1419        version (closer to model/inc/CPP_OPTIONS.h).
1420    o model/src:
1421      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1422        retired list of parameters (routine FREEZE has been replace by surface
1423        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1424    o pkg/gmredi:
1425      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1426        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1427      - update output of FWD experiments: front_relax.bvp,
1428        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1429    
1430    checkpoint64q (2013/11/17)
1431    o verification:
1432      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1433        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1434      - generate new output (growth & melt) for seaice_itd experiment after
1435        updating the input pickup_seaice files (previously wrong).
1436    o pkg/cost:
1437      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1438        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1439        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1440          cannot be applied to var in common block).
1441        o allows to get results independent of tile-per-proc setting (if using
1442          slower GLOBAL_SUM_SEND_RECV option).
1443      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1444        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1445        forward gradients: update output).
1446      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1447        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1448    o pkg/mom_common:
1449      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1450        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1451        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1452        ensure that all field value that are used are set.
1453    o tutorial_deep_convection (smag3d):
1454      - add missing scaling in mom_calc_smag_3d.F;
1455      - set smag3D_coeff in input.smag3d such that results do not change.
1456    o pkg/dic:
1457      - change dic_cost.F to compute cost on each tile first and then apply
1458        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1459        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1460      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1461    o eesupp/src & pkg/mdsio:
1462      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1463        (from pkg/mdsio) since they are no longer used for tape IO.
1464      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1465        (+ keep a copy in pkg/atm_ocn_coupler).
1466    o verification/isomip:
1467      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1468    o tools/build_options:
1469      - optfile linux_amd64_ifort11, fast (no ieee) case:
1470        to get a working restart for all experiments, add "-fp-model source"
1471        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1472    
1473    checkpoint64p (2013/10/20)
1474    o pkg/autodiff:
1475      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1476        criteria, return to simple (default) tape IO format.
1477    o pkg/mdsio (+ eesupp/src):
1478      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1479        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1480      - fix globalFile and singleCpuIO options using simpler global mapping.
1481      - new pairs of scatter/gather vector S/R (one for each type, generated from
1482        template) corresponding to simpler global mapping.
1483      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1484        to globalFile when parameter globalFiles is set to True.
1485      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1486    o pkg/autodiff:
1487      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1488        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1489        missing, just add a STOP if array type do not match.
1490    o pkg/exf:
1491      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1492         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1493         and rename array obsSIce to exf_iceFraction.
1494    o tutorial_deep_convection:
1495      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1496        for now all in this exp. code dir.
1497      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1498        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1499    o eesupp/src:
1500      - added SINGLE_DISK_IO option because reading of parameter files on
1501        very large number of processors did not work with existing set-up
1502    
1503    checkpoint64o (2013/09/25)
1504    o pkg/atm_phys & atm_compon_interf:
1505      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1506    o tools/build_options:
1507      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1508        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1509        remove CPP setting (was identical to genmake2 default).
1510    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1511      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1512      - fixed up the calculation of the eddy stress and how it is added to the
1513        external forcing via taueddy_external_forcing.F
1514      - at the moment, it is very experimental and only works with the variable eddy
1515        diffusivity calculated in gmredi_k3d.F
1516    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1517        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1518    o testreport (& tools/do_tst_2+2):
1519      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1520    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1521      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1522      - add switch (for big setups) to use 'medium' memory-model (but leave it
1523        commented out for now). Note: needed with FC 19 to compile big setups.
1524    o pkg/atm_compon_interf:
1525      - regroup per field origin (model & pkgs) the coupling storage routines
1526         (which accumalate in time each coupling field)
1527      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1528        update accordingly + simplify aim_do_physics.F
1529    
1530    checkpoint64n (2013/08/26)
1531    o pkg/bbl:
1532      - update formulation to reduce dispersion of tracer properties in bbl
1533      - replaced horizontal and vertical transport parameters with velocities
1534      - changes results for verification/global_with_exf.yearly
1535    o verification/halfpipe_streamice:
1536      - change to matrix construction; update both Fwd & AD output.
1537    o verification/tutorial_tracer_adjsens:
1538      - OpenAD test: switch to vector-invariant momentum since fluxform with
1539        rStar causes problems with OpenAD; update output.
1540    o tools:
1541      - genmake2: define a common prefix for all temp-file names ; move them
1542        to local /tmp disk (but would be easy to move them back);
1543      - xmakedepend: apply the same switch for temp-files.
1544    o pkg/offline:
1545      - changes for use with rStar (NLFS): assume that we continue to provide
1546        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1547        output files) and apply r* scaling at each time-step (function of the time
1548        varying Eta field); use normal pickup files (needed for restart with NLFS).
1549    o adjoint with OpenAD:
1550      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1551        package openad.  This package has to be compiled for all runs with OpenAD
1552        instead of specifying code_oad_all as a modification directory.
1553      - link the fortran templates from tools/OAD_support to the build directory
1554        for preprocessing to avoid conflicts between different setups compiled
1555        simultaneously and simplify cleanup.
1556    o pkg/exf:
1557      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1558        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1559    o model/src:
1560      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1561        (similar to do_fields_blocking_exchanges.F).
1562    o tools/genmake2:
1563      - remove TAF output src code just before calling staf (when not doing a fresh
1564        built, will stop if things go wrong with staf).
1565      - fix target "adobj" (left from TAF version-2 transition)
1566    o pkg/diagnostics:
1567      - add a parameter to track the status of pkg/diagnostics activation;
1568        this replace/extend the use of logical param "settingDiags" (to check
1569        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1570        New S/R to print error message and stop when pkgStatus is not right.
1571      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1572    
1573    checkpoint64m (2013/08/13)
1574    o model/inc:
1575      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1576        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1577    o pkg/kpp & aim_v23:
1578      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1579    o pkg/seaice:
1580      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1581        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1582      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1583    o eesupp/src:
1584      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1585        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1586    o switch to TAF version-2:
1587      - add flow directives to "freeze" naming convention for ad-routines that
1588        are used in I/O routines of adjoint state and associated common blocks
1589        that are used in adcommon.h (backward compatible with version-1)
1590      - update all ad-optfiles (in tools/adjoint_options + few local to some
1591        verification exp) to switch to latest TAF version (currently 2.5.5);
1592        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1593        out except for diva).
1594      - the major change with TAF version-2 is that both the differentiated
1595        routines and the forward routines (new) are returned as part of the TAF
1596        output source code. Update genmake2 accordingly.
1597      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1598        with version-2 when compared to TLM or FWD gradient); other experiments
1599        output show minor changes (machine truncation level); update the few AD &
1600        TLM output with 12 matching digits only (some prior to version-2 switch).
1601    
1602    checkpoint64l (2013/08/05)
1603    o model/src:
1604      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1605      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1606        when using TAF but only if using OpenAD.
1607    o pkg/mom_common+fluxform+vecinv:
1608      - always set horiz. viscosity arrays to background value before calling
1609        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1610        only when using variable horiz. viscosity (useVariableVisc=T);
1611      - simplify mom_vecinv.F (only 1 block for momViscosity).
1612    o pkg/mom_common: variable horiz. viscosity in NH code
1613      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1614        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1615      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1616        useBiharmonicVisc & useVariableVisc.
1617      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1618        in calc_gw.F, version 1.27, 2006/06/20):
1619        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1620        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1621      - change background horiz viscosity in vertical momentum (gW) to always be
1622        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1623        any type of variable viscosity, e.g., viscAh/4Grid)
1624      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1625        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1626        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1627        default viscAh,viscA4 is zero).
1628    o model/src:
1629      - extend length of drC & recip_drC from Nr to Nr+1.
1630    o Divided Adjoint (DIVA) with MPI:
1631      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1632      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1633        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1634    
1635    checkpoint64k (2013/07/23)
1636    o tools/OAD_support:
1637      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1638        and remove it from genmake2.
1639    o tools/build_options:
1640      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1641        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1642    o verification/halfpipe_streamice:
1643      - change to driving stress formulation; update both Fwd & AD output.
1644    o tools/genmake2 and Divided Adjoint with MPI:
1645      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1646      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1647      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1648        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1649        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1650      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1651    o testreport:
1652      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1653        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1654        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1655    o verification/lab_sea (AD test):
1656      - change to test Divided Adjoint Run in this set-up (both standard AD test
1657        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1658    o pkg atm_ & ocn_compon_interf:
1659      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1660        staggerTimeStep implementation) and disable (retired) corresponding
1661        parameter.
1662    o pkg/offline:
1663      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1664      - add S/R OFFLINE_CHECK to print offline parameter summary
1665        and stop if loading a file that is not used;
1666      - enable to calculate GMRedi tensor, KPP mixing and convective index
1667        when the corresponding file(s) is/are not specified (but pkg is used).
1668      - comment out resetting of monitorFreq (to endTime) since it still useful
1669        for monitoring CFL numbers and checking offline fields.
1670    o OpenAD:
1671      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1672        smaller standard output) and generate new (smaller) output (on baudelaire
1673        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1674    o model/src:
1675      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1676        (where external_forcing_adjust was called) and change list of arguments;
1677      - merge external_forcing_adjust.F into external_forcing_surf.F
1678      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1679        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1680        previously in file "balance_relax.F", now removed); remove corresponding
1681        arrays in FFIELDS.h.
1682      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1683        a hack for getting back surfaceForcingS (loaded from file) when using
1684        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1685      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1686        (was getting only 11 digits for AD-grad, due to different truncation
1687         error in AD code).
1688    
1689    checkpoint64j (2013/07/04)
1690    o pkg/offline:
1691      - to enable the use of other features with pkg offline (e.g., obcs),
1692        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1693      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1694  o pkg/exf ALLOW_RUNOFTEMP  o pkg/exf ALLOW_RUNOFTEMP
1695    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1696    - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice    - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1697    - changes verification/global_ocean.cs32x15/results/output.seaice.txt    - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1698  o pkg/atm_phys:  o pkg/atm_phys:
1699    - allows to add some damping on uVel,vVel (strength only function of k).    - allows to add some damping on uVel,vVel (strength only function of k).

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