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revision 1.1653 by heimbach, Thu Apr 19 16:09:58 2012 UTC revision 1.2170 by heimbach, Sun Jul 5 02:06:23 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 OpenAD
8     - Adding preliminary ggl90 test to OpenAD verification.
9       Config. with ggl90 currently diverges after 64 time steps
10       so will need more work to become more stable
11     - Adding preliminary kpp test to OpenAD verification.
12       required small tweakes in kpp_routines.F
13     - Merge and update from Krishna Narayanan's contrib area:
14       * Add one variable for preliminary OpenAD DIVA
15       * Add replacement time-stepping for OpenAD DIVA
16       * genmake2 flag -diva (but only for OpenAD; preliminary)
17       * required modifs for OAD_support
18       successful preliminary test for tutorial_global_oce_biogeo/
19    o pkg/seaice:
20     - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
21     - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
22       delta with a smooth function in s/r seaice_calc_viscosity
23       (no effect on EVP)
24     - rename local suffix "sqr" into "sq" for more consistent variable names
25    o pkg/seaice: add new parameter SEAICE_deltaMin that is used ***only***
26      for regularizing Delta (and nothing else, like the parameter
27      which is also used for all sorts of things SEAICE_EPS). Defaults to
28      SEAICE_EPS for backward compatibility only.
29    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
30      the wrong key by inialising it before use -> fixes a recomputation
31      problem but does not fix the gradient
32    o pkg/layers:
33      - move resetting of flux arrays to outside the iLa loop
34        (this caused layers_diapycnal to not work with more than one layer coord.)
35      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
36    o pkg/layers:
37      - remove from common block 3D layers fields (used to diagnose transport
38        in tracer coords) and declare them as local arrays in layers_calc.F
39    o pkg/seaice:
40      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
41        in lab_sea forward experiment (changes results -> updated)
42      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
43    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
44      computations; for SEAICE_VECTORIZE_LSR
45      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
46        sweep to the outside,
47      - remove store directives and add "CADJ loop sequential" directives
48        in analogy to model/src/solve_tridiagonal.F
49      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
50        boundaries to yield more readable code. This has also the charming side
51        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
52        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
53        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
54        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
55        an additional option)
56       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
57       but the adjoint gradients (which are affected by this change) still explode.
58    o coupler (atm & ocn _compon_interf):
59      - avoid using Exch2 IO mapping if not suitable.
60    
61    checkpoint65m (2015/06/15)
62    o pkg/layers:
63      - clean-up old parameters setting (from Sep 2012):
64        + remove old parameters setting from common block (declared locally);
65        + stop if any old parameter is mixed with new parameters;
66        + check for valid or consistent parameter setting (e.g., layers_name)
67      - check that layers_bounds for Pot.Density are in the right range;
68        this is supposed to catch un-updated setting after recently shifting
69        potential density field "prho" by -1000 (now in "sigma" scale).
70    o pkg/layers:
71      - Added missing call to layers_fill for keeping track of tottend in
72        pkg/diagnostics/diagnostics_fill_state.F
73    o pkg/layers:
74      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
75        of diapycnal fluxes
76    o pkg/layers:
77      - reverted changes to interpolation to previous treatment; there
78        was never actually a problem
79    o pkg/layers:
80      - fix interpolation of layers tracers in the presence of partial cells
81      - add lots of new functionality to compute water mass transformation
82        (enabled by CPP flag LAYERS_THERMODYNAMICS)
83      - add new calls from main code (diags_oceanic_surf_flux.F,
84        thermodynamics.F, impldiff.F) and gad to save the necessary fields
85        for layers_thermodynamics calculations
86    o pkg/ptracers:
87      - add capability of stepping a passive tracer forward without advection
88        by setting PTRACERS_advScheme to 0.
89    o pkg/diagnostics:
90      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
91    o pkg/layers:
92      - shift potential density field "prho" by -1000 for density layer averaging so
93        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
94        Note that density bin boundaries (layers_bounds in data.layers) have
95        to be set accordingly (i.e., shifted, in sigma scale).
96    o pkg/layers:
97      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
98      - fix calculation of layer non-weighted velocity and layer probability
99      - add diagnostics for pot.density used for layer averaging
100    o pkg/seaice:
101      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
102        positiveness, modify a few comments and improve variable names,
103      - the changed computation of deltaC affects most seaice-related
104        experiments at the truncation level.
105        seaice_itd.thermo is affected by far the most, with
106        only 7 digits of agreement remaining; update experiments.
107    
108    checkpoint65l (2015/05/04)
109    o pkg/shelfice:
110      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
111        factor drKp1 to zero where it is negative (ie. do not use
112        SHELFICEBoundaryLayer if hFacC>1)
113      - the same for factor drLoc in shelfice_forcing.F
114    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
115        with modules in ptracers, when using testreport option "-small_f"
116    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
117      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
118    o verification/testreport
119      - add new option -small_f
120        with this option testreport first makes the target small_f (*.f files)
121        before running make (all). This is useful for explicit inlining when
122        all sources need to be full available.
123    o pkg/exf/exf_interp.F:
124        remove previous changes related to reverse (decreasing) input grids latitude
125    
126    checkpoint65k (2015/04/01)
127    o pkg/ecco:
128        fix missing cosphi initialization; use eccoiter in place of optimcycle;
129        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
130        instead of active read/write
131    o pkg/ctrl:
132        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
133        instead of active read/write.
134    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
135        return if .NOT.useAUTODIFF
136    o pkg/seaice: add CPP brackets (cost function related).
137    o model/src:
138        add useAUTODIFF run time switch.
139    o pkg/exf/exf_interp.F:
140        add code to allow input grids with latitude starting in the north (i.e. when
141        j=1 corresponds to northern edge of field); modify global_with_exf to test
142        this feature.
143    o verification/testreport:
144      - replace "grep -A3" with POSIX conformal sed command, because there are
145        implementations of grep that cannot do contextual searches
146      - replace "cat -n" by "nl" (two occurrences), because not all implementations
147        of "cat" have the option "-n"
148    o model/src:
149        add new file gsw_teos10.F that contains 3 functions, more or less a copy
150        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
151        convert from conservative to potential temperature. For now they are not
152        called anywhere.
153    o pkg/ggl90: make "useIDEMIX" useful
154      - re-organize code in s/r ggl90_calc a little to move computations that
155        are different for idemix into separate loops (changes verification
156        experiment idemix at truncation level, 12 digits remain -> updated)
157      - requires 2 new 2D fields KappaM, verticalShear
158      - make hFacI and recip_hFacI local 3D variables that are passed to
159        s/r ggl90_idemix
160      - fix and improve some comments
161    
162    checkpoint65j (2015/02/25)
163    o pkg/openad
164      - synchronize seawater.F with version in model/src: replace routine
165        body of sw_temp by calling sw_ptmp and fix/add a few comments.
166    o pkg/mnc:
167      - change default value of pickup_read/write_mnc params to FALSE
168        (since few features are missing in reading MNC pickup files).
169    o model/src:
170      - change default (background) vertical diffusivity for salt to be the
171        temperature (background) vertical diffusivity.
172      - change background vertical diffusivity in vertical mixing pkgs ggl90,
173        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
174        This makes ptracers default diffusivity (that uses salt diffKr) more
175        consistent with vertical mixing schemes.
176    o verification/testreport:
177      - fix typo in "-pcls" option ;
178      - put temp files in /tmp (instead of in local dir)
179      - add option "-ncad" to use genmake2 new option "-nocat4ad"
180      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
181    o pkg/ggl90 (idemix code):
182      - apply few fixes ; add some missing "_d 0" ; update output of exp.
183        global_ocean.90x40x15.idemix
184    o OpenAD
185      - enable active file I/O and begin removal of work-around code
186        for OpenAD for handling control variables (memory vs. active files)
187      - new CPP options file OPENAD_OPTIONS.h
188      - revert to genarr2d gradient check for hs94.1x64x5
189      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
190      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
191    o tools/genmake2:
192      - add option for an alternative Makefile (from Martin) where multiple
193        source files are sent to TAF (instead of all in one file).
194    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
195      - code provided by Carsten Eden as an extension of ggl90
196      - so far the code is turned on within ggl90 by setting a CPP-flag at
197        compile time; a runtime flag implementation is not yet complete
198      - tested in new verification experiment global_ocean.90x40x15.idemix
199    o verification:
200      - reduce length of the AD test run by half for experiments
201        global_ocean.cs32x15 (std + thsice) and isomip
202      - enable active file I/O for OpenAD, adjust verifications accordingly
203      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
204    o verification/testreport:
205      - fix two non-POSIX sed statements so that there are no error messages
206        on Mac OS X
207      - replace hostname -s with hostname | sed 's/\..*$//'
208    o model/src/seawater.F:
209      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
210        (following the matlab code), which would have avoided the bug caught
211        by Matt (see below) in the first place
212    o pkg/shelfice:
213      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
214        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
215      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
216        ice-shelf case (i.e., within surface level).
217      - add config summary in shelfice_check.F
218      - remove global variable recip_SHELFICElatentHeat and replace by a local
219        variable recip_latentHeat
220      - introduce diagnostics for friction velocity uStar (in case of
221        SHELFICEuseGammaFrict)
222      - change verification experiment isomip.htd:
223        + start from pickup (as input_ad at nIter0=8640)
224        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
225        + test SHELFICEuseGammaFrict = .TRUE.
226        + test SHELFICEadvDiffHeatFlux = .TRUE.
227    o model/src:
228      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
229        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
230        update output of experiments global_with_exf.yearly and isomip (all 6).
231    o pkg/shelfice:
232      - change setting of kTopC to also be zero where there is no ice-shelf.
233      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
234        ice-shelf is.
235      - first attempt to get RealFreshWaterFlux effects: for now, only without
236        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
237    o pkg/seaice: add the option to prescribe a fixed thickness PDF
238      for thermodynamic calculations
239      - because of divisions of the type 7/7 not exactly equal to 1, this change
240        affects results of some verification experiments by up to 4 digits:
241        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
242        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
243        adjoint: lab_sea, lab_sea.noseaicedyn
244        -> updated
245    
246    checkpoint65i (2015/01/23)
247    o model/src:
248      - change units of frictionHeating field from W to W/m^2
249      - fix bug in frictional heating from stratospheric drag in
250        S/R ATM_PHYS_TENDENCY_APPLY_V
251      - with synchronous time-stepping: move resetting to zero of frictionHeating
252        field from load_fields_driver.F to thermodynamics.F ;
253      - add diagnostics for frictional heating.
254    o model/src & gmredi K3D:
255      - add frictionHeating field to pickup-files (for synchronous time-stepping)
256      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
257      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
258        and name in pickup file).
259      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
260    o model/src:
261      - move (from ini_forcing.F) initialisation of all arrays in header file
262        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
263        (since Nov 2012) with option selectAddFluid=1.
264    o pkg/shelfice:
265      - change units (+ document) of newly added field "shelfIceMassDynTendency"
266      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
267    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
268    o pkg/seaice: two new runtime parameters:
269      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
270        long overdue
271      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
272        parameterization of tensil stress for fast ice (does not do anything yet)
273    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
274        for LSR: move checking overlaps out of JFNK-if-block
275    o pkg/atm_phys:
276      - move copy of grid and dynamical fields out of atm_phys_driver.F into
277        new S/R ATM_PHYS_DYN2PHYS.
278      - fix level height for Linear Free-Surf case (to be consistent with
279        fixed-in-time pressure levels).
280    o pkg/mom_common (bottomdrag):
281      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
282        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
283        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
284    o pkg/shelfice (u/v_drag):
285      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
286      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
287        (now similar to shelfice_u_drag.F)
288      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
289        from mom_vecinv.F (similar to mom_fluxform calls).
290    o pkg/mom_common (bottomdrag):
291      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
292      - add options for alternative discretisation of velocity norm in quadratic
293        bottom drag: averaging of grid-cell-center KE to U.point and V.point
294        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
295        improves when averaging only the other component (e.g. vVel for U bottom
296        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
297      - add options (bottomVisc_pCell) to account for partial-cell in bottom
298        friction (no-slip BC) thus getting the true distance from the bottom;
299        off by default since this also reduces model stability (explicit bottom
300        friction). Changes produce different machine truncation with linear-drag
301        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
302        front_relax (bvp & mxl, 10 & 11 digits).
303    o model/src & mom pkgs:
304      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
305        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
306      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
307        just copy level Nr value to level Nr+1.
308    o doc:
309      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
310    o pkg/streamice:
311      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
312        SHELFICE.h: move array shelficemass to init_varia, initialise
313        from array shelficemassinit, which is set in init_fixed and
314        has option to be set from file; introduce array
315        shelficeMassDynTend array, set thru file in init_fixed
316      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
317        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
318        pkg/streamice
319      - shelfice_thermodynamics.F: call shelfice_step_icemass if
320        SHELFICEMassStepping = .true.
321      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
322    
323    checkpoint65h (2014/12/17)
324    o verification/global_ocean.90x40x15, global_ocean_ebm:
325      - update to generic controls.
326    o pkg/ctrl:
327      - ctrl_map_ini_genarr.F: test for igen>0
328      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
329      - move gentim2d part of ctrl_map_ini_genarr.F to
330        new separate routine : ctrl_map_ini_gentim2d.F
331      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
332        add time variable weights and cyclic controls (time mean,
333        seasonal cycle, etc) capabilities to gentim2d
334    o pkg/ecco:
335      - move reading of error, conversion to weights from
336        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
337    o global_oce_llc90, cs32:
338      - activte sbo.
339      - CTRL_SIZE.h : add maxCtrlProc.
340      - activate the new genctrl capabilities.
341      - update following reorganization of global_oce_input_fields.tar.gz  
342    o pkg/ctrl/ctrl_ad_diff.list:
343      - add missing ctrl_init_rec.f
344    o tools/OAD_support/keepOriginal:
345      - add ctrl_init_rec.F
346    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
347      - avoid recomputations of xx_gentim2d_dummy.
348    o momentum diagnostics:
349      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
350        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
351    o pkg/seaice/seaice_lsr.F:
352      - fix computation of BU/BV, make sure they are non-zero, only necessary
353        for cubed sphere exchanges and SEAICE_OLx/y>0.
354        This makes calling s/r fill_cs_corner_rl obsolete (removed).
355    o verification/global_ocean.cs32x15/input.seaice
356      - add test for strong implicit coupling and restricted addtive Schwarz
357        methods for LSR
358      - update results/output.seaice.txt
359    o verification/tutorial_global_oce_biogeo:
360      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
361        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
362        update output_adm,_oadm,_tlm.txt
363    o pkg/dic:
364      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
365      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
366        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
367    o verification/tutorial_global_oce_biogeo:
368      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
369        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
370        update output_adm,_oadm,_tlm.txt
371    o eesupp/src:
372      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
373        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
374    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
375      LSR (following Hutchings et al. 2004)
376      - introduce zetaZ as a global variable (requires adjustments in
377        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
378        in seaice_calc_viscosities.F
379      - new flag SEAICEuseStrImpCpl (default off)
380      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
381        momentum equations
382      - JFNK-solver (preconditioner) adjusted to allow using this method
383        (where it does not have any positive effect)
384    o pkg/seaice
385      - add overlap for restrictive additive Schwartz method also to LSR, but
386        turn it off by default (because it only seems to work for non-cubed
387        sphere/llc topologies)
388    o pkg/autodiff
389      - add extra exchanges in addummy_in_steppging also for mnc output
390    o pkg/seaice:
391      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
392        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
393    o pkg/obcs:
394      - add option to specify domain-connected piece Id along OB though files
395        (for now, only used to diagnose PhiVel; default =1 -> global correction)
396      - modify obcs_diag_balance.F to process each connected-part separately;
397        exclude OB where Id = 0 but keep the full divergence there (-> constant
398        Psi along this portion of OB and all inflow derived from grad(Phi))
399      - add example of OB-conect files in verification/so_box_biogeo/input.
400    o pkg/diagnostics:
401      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
402      a) use non zero matrix element across OB and solve for Phi 1 grid point
403         outside OB (i.e, where tracer OBCS are applied).
404      b) global imbalance of inFlow/outFlow across OB: instead of modifying
405         velocity across OB, spread it uniformly along the OB in the RHS.
406    
407    checkpoint65g (2014/11/19)
408    o pkg/diagnostcis:
409      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
410    o pkg/my82,pp81,kl10:
411      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
412        field diffKr as background diffusivity to set minimum diffusivity value.
413    o pkg/seaice:
414      - add new parameter SEAICEuseEVPrev (for revisited EVP by
415        Bouillon et al 2013)
416      - add SEAICE_evpAlpha/Beta to namelist
417      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
418        involve trivial re-ordering of divisions/multiplications that should not
419        have any effects, but ... they do change the results of lab_sea.hb87 so
420        that only 2 digits of agreement remain, in line with the general
421        instability/fragility of the evp-code. For now, I do not care and just
422        update the verification experiment
423    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
424      - remove xx_genarr2d_numsmooth etc
425      - use xx_genarr2d_preproc etc instead
426      - carry out smooth_correl2D at initialization stage rather than during
427        time stepping.
428      - get smoothOpNb from xx_gentim2d_preproc
429    o global_oce_cs32 :
430      - add test of generic ecco capabilities.
431    o pkg/exf/exf_getsurfacefluxes.F :
432      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
433    o pkg/ctrl,ecco :
434      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
435        is defined.
436    o pkg/seaice: add diagnostics for Delta (deformation parameter)
437    o model/src:
438      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
439        diffusivity (background) is specified but ignored.
440    o verification:
441      - in testreport, convert hostname to lower case for default output dir name
442    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
443    o pkg/dic: add modifications from Hajoon:
444      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
445      - light attenuation: add self-shading effect by climatological Chlorophyll
446        (read from file).
447    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
448        compiles when SEAICE_ALLOW_DYNAMICS is undefined
449    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
450        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
451        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
452        approach where CPP_OPTIONS.h includes an omnipotent
453        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
454    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
455        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
456    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
457        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
458        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
459    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
460      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
461      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
462      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
463      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
464    o pkg/ctrl,ecco,exf :
465      - remove variables associated with NON-generic costs,
466        unless ECCO_CTRL_DEPRECATED is defined.
467      - remove NON-generic NON-obcs controls,
468        unless ECCO_CTRL_DEPRECATED is defined.
469    o pkg/ctrl : added ctrl_local_params.h
470    o pkg/ecco : added ecco_local_params.h
471    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
472        experiments, which will progressively be removed once the
473        experiments are revised to use only generic controls/costs.
474    
475    checkpoint65f (2014/10/13)
476    o pkg/ctrl, ecco, seaice : minor changes in headers
477    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
478        cost function and control capabilities added since checkpoint65c.
479    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
480    o pkg/ecco: increase modularity and improve logic
481      - ecco_toolbox.F (new) : basic operations that are often used,
482        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
483        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
484      - cost_gencal.F (new) : determine filnames and records.
485      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
486      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
487        and exploit the above functions leading to more compact code.
488      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
489      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
490        using_ers, using_gfo, using_mdt is now only defined within gencost)
491    o pkg/ecco: extend generic cost capabilities
492      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
493        capabilities via gencost_preproc (+ _c,_i,_r related params),
494        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
495        gencost_outputlevel arguments to cost_generic
496      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
497        and active_read, making room for gencost_preproc to take effect.
498        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
499      - pkg/ecco/cost_generic.F :
500        compute and store misfit maks*(model-data) in localdif that is
501        then used in cost and for output, output misfit if outlev.GT.0
502      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
503        rather gencost_barfile for deciding whether to write barfile
504      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
505      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
506        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
507      - pkg/ecco/ecco_summary.F : report gencost variables
508      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
509    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
510    o pkg/ecco: internal re-organization
511      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
512        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
513        mv relevant variables definition from ecco_cost.h to ecco.h,
514        make sure gencost routines only include ecco.h)
515      - throughout : add missing CCP switches, rm unused variables,
516        and rm un-necessary CPP switches
517      - throughout gencost routines : replace modelstartdate with
518        gencost_startdate when needed
519      - cost_bp_read.F : use arguments, instead of common blocs
520        so that it can be used also by (new) cost_gencost_bpv4.F
521      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
522      - ecco_phys.F : compute etanFull
523      - ecco_readparms.F : rename using_topex as using_tpj, add
524        bpv4-grace to gencost list, initialize added parameters
525      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
526    
527    checkpoint65e (2014/09/28)
528    o pkg/obcs:
529      - replaced the just-added CPP options with run-time variables
530        (see pkg/obcs/OBCS_PARAMS.h for details)
531    o pkg/obcs:
532      - add additional CPP options for sponge boundary layers
533        (see pkg/obcs/OBCS_OPTIONS.h for details)
534    o pkg/atm_phys:
535      - implement simple (obliquity only, assuming circular planet orbit)
536        seasonal cycle for incoming insolation ; used when run-time parameter
537        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
538    o pkg/exf, pkg/ecco, pkg/ctrl:
539      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
540      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
541      - implement gentim2d for xx_tauu, xx_tauv
542    o pkg/ctrl, pkg/ecco :
543      - fix and complement the generic controls implementation
544    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
545        pkg/shelfice/shelfice_thermodynamics.F,
546        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
547        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
548      - add weight in CTRL_GET_GEN calls
549    o pkg/ctrl :
550      - ctrl_get_gen.F : add weight as input parameter, and apply
551        it directly rather than using smooth_correl2Dw (to be retired).
552      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
553    o pkg/ctrl :
554      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
555        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
556      - re-activate ctrl_summary (call in ctrl_init.F)
557    o pkg/ctrl/ctrl_cost_gen.F :
558      - fix CCP brackets, remove un-necessary myiter, mytime
559    o pkg/ecco, pkg/ctrl :
560      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
561      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
562      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
563      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
564    
565    checkpoint65d (2014/09/15)
566    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
567      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
568        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
569    o pkg/ctrl/ctrl_map_ini_genarr.F :
570      - remove compilation failure
571      - replace hard coded example
572      - use ctrl_map_ini_gen2D, 3D
573    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
574      - on/off switch based upon xx_genarr2d_weight,3d
575    o src/packages_init_variables.F :
576      - regroup pkg/estimation calls
577      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
578        (moved to ctrl_init_variables)
579    o cost/cost_init_varia.F :
580      - remove ecco_cost_init_varia
581        (moved to ecco_init_varia)
582    o ctrl/ctrl_init_variables.F :
583      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
584      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
585    o ctrl/ctrl_map_ini.F :
586      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
587        (moved to ctrl_init_variables)
588    o ctrl/ctrl_map_ini_ecco.F :
589      - remove ECCO_PHYS (mv to ecco_init_varia)
590      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
591    o ecco/ecco_ad_diff.list :
592      - add ecco_init_varia.f
593    o ecco/ecco_init_varia.F
594      - new routine
595    o pkg/streamice:
596      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
597        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
598      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
599    o pkg/generic_advdiff:
600      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
601    o pkg/exf:
602      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
603         xxg_precip capability
604      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
605    o pkg/ctrl:
606      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
607    o model/src/load_fields_driver.F :
608      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
609        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
610    o OpenAD verification experiments:
611      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
612        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
613        for now, only in pkgs used in OpenAD verification experiments.
614      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
615        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
616        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
617        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
618    o OpenAD verification tests:
619      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
620      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
621        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
622      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
623        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
624    o model/src & generic_advdiff:
625      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
626        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
627        dynamics requires valid tracer forcing only over tile interior but, for
628        some diagnostics, may need to extend it over 1 point in tile halo region.
629      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
630        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
631        setting in temp/salt/ptracer_integrate.F
632    o pkg/dic:
633      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
634        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
635        in gchem_forcing_sep.F
636    o pkg/autodiff & obcs:
637      - add storage of current OB values for U & V (was already done for T & S).
638    
639    checkpoint65c (2014/08/30)
640    o pkg/dic:
641      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
642        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
643        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
644    o verification:
645      - new experiment testing OBCS and DIC pkgs, using params & output from
646        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
647        passage: take OBCS from the last year of a 2 yrs simulation and initial
648        conditions from t=1.yr while keeping the same forcing.
649    o model/src:
650      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
651        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
652    o pkg/diagnostics (Stats-Diags):
653      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
654        a) refine region where stats are computed, excluding where arrhFac=0 ;
655        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
656        c) extend regional stats over the region edges (for U or V pt location).
657    o pkg/gchem:
658      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
659        pkg/dic is currently changing/updating ptracers values beyond the OB).
660    o verification (hs94):
661      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
662        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
663        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
664        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
665    o pkg/ptracers:
666      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
667        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
668      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
669        with AB-2 code (so that it get tested).
670    o model/src:
671      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
672        with AB-2 code (previously only available with AB-3 code).
673        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
674        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
675        there, by calling CYCLE_AB_TRACER).
676    o pkg/generic_advdiff:
677      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
678        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
679        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
680        S/R temp/salt/ptracers_integrate.F
681    o model/src & pkg/ptracers:
682      - remove common block variables gT,gS (in DYNVARS.h), except when
683         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
684      - remove common block variable gPtr.
685    o model/src & pkgs:
686      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
687         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
688         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
689         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
690      + change accordingly all calling S/R.
691      - use local temperature/salinity/ptracer tendency array (without bi,bj)
692        in S/R temp/salt/ptracers_integrate.F
693    o pkg/seaice:
694      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
695        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
696      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
697        in seaice_lsr
698      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
699        in s/r seaice_lsr_calc_coeffs
700    o pkg/mdsio:
701      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
702        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
703        too long (e.g., > MAX_LEN_FNAM/2 )
704    
705    checkpoint65b (2014/08/12)
706    o pkg/matrix:
707      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
708    o model/src:
709      - fix initialisation of geothermalFile; compile geothermal-flux code in
710        natl_box verification experiment.
711    o model/src & pkg/down_slope:
712      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
713      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
714        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
715        results at machine truncation level: update output of experiments
716        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
717    o pkg/diagnostics (Stats-Diags):
718      - do not cumulate the full volume when DIAGNOSTICS_FILL is
719        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
720        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
721        times (but Min,Max and StD are still wrong).
722    o model/src:
723      - add geothermal flux forcing: read in ini_forcing.F as time-constant
724        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
725    o model/src:
726      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
727        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
728        arrays are already updated while adjustments (filters, conv.adjustment) are
729        still applied later, in S/R TRACERS_CORRECTION_STEP.
730    o model/src:
731      - store in common bloc array "rhoInSitu" the virtual potential temperature
732        anomaly that is used to compute geopotential: this make the atmos code
733        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
734    o pkg/seaice/seaice_lsr.F
735      - rename integer variable ilcall to ipass (that's what it is called
736        in the residual diagnostics
737      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
738        default) for improved non-linear convergence of the first few steps
739      - adjust a few comments and add new ones to explain some of the store
740        directives
741    o pkg/generic_advdiff (& ptracers):
742      - re-work the code to check for valid advection scheme and for minimum
743        size of overlap (now stored in local common bloc in gad_advscheme.F)
744    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
745      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
746      - add an auxilliary variable "bet" and fix store directives and keys in
747        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
748        less exact gradients in my tests); but there are still
749        recomputation warning (although gradients are sort of OK), when
750        SEAICE_LSR_VECTORIZE is not defined, so this flag and
751        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
752      - update verification experiments lab_sea.
753      - change some comments in S/R seaice_calc_viscosities
754    o model/src:
755      - if staggerTimeStep=T, always apply exchange to velocity field in
756        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
757        (independent of using multi-dim advection or not); no effect on FWD run
758        but affects AD results (at machine truncation level): update output of
759        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
760        and isomip (oad: 12.d).
761    o pkg/generic_advdiff:
762      - stop if doAB_onGtGs is set to FALSE but ignored
763      - refine warning related to stability of tracer time-stepping
764        regarding internal wave dynamics.
765      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
766        on staggerTimeStep & implicitIntGravWave (will now get a warning
767        if potentially unstable).
768    o pkg/kl10:
769      - add new pkg "kl10" for mixing due to internal wave breaking, from
770        http://www.sciencedirect.com/science/article/pii/S1463500310000144
771        (contribution from Jody Klymak), tested in verification experiment
772        verification/internal_wave/input.kl10/
773    o isomip experiment:
774      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
775        (input.htd) and update the output.
776    o cd_code experiments:
777      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
778        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
779        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
780        update the corresponding output.
781    o pkg/seaice:
782      - reduce the number of include files and store directives in
783        S/R seaice_lsr_tridiagu/v
784      - change the order of loops in one case in S/R seaice_lsr_tridiagv
785        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
786        get rid off one store directive (a TAF bug?)
787      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
788        S/R seaice_lsr_tridiagv to change the loop range for consistency
789      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
790      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
791        S/R seaice_lsr_tridiagu/v (requires update of
792        offline_exf_seaice/input.dyn_jfnk)
793    
794    checkpoint65a (2014/07/27)
795    o model/src:
796      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
797        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
798        (topo in p-coords, ice-shelf in z-coords); update output of experiments
799        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
800    o model/src:
801      - collect momentum forcing tendency into local 2-D array (passed as argument
802        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
803        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
804        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
805      - collect T & S forcing tendency into local 2-D array (passed as argument to
806        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
807        affects results at machine truncation level (e.g., ocean: if using
808        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
809        correction due to vertical advection).
810      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
811        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
812        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
813        obcs_ctrl (ad & fwd grd @ 12 & 7).
814    o pkg/ptracers & diagnostics:
815      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
816        title (to avoid some unexpected truncation); sort out ptracers diags units.
817      - collect ptracer forcing tendency into local 2-D array (passed as argument
818        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
819    
820    checkpoint65 (2014/07/18)
821    o pkg/fizhi:
822      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
823        affects results at machine truncation level. Update output of experiments
824        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
825    o pkg/seaice: more clean up
826      - rename TAF common block tapes to be more consistent and remove
827        unnecessary duplicates
828      - add store directives to remove more recomputations, but use smaller
829        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
830        The idea behind this flag is to reduce the memory footprint when the
831        adjoint of the LSR is not required. As of now, defining the flag
832        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
833        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
834        For experiment offline_exf_seaice, this means on a linux box with gfortran
835        nearly a factor of 10 (but keep in mind there is mostly seaice code in
836        this experiment):
837        > size mitgcmuv_ad
838        text    data        bss     dec        hex
839        5100659 1216  220458952  225560827  d71c8fb
840        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
841        but only a moderate increase of 36% for global_ocean.cs32x15:
842        text    data        bss     dec        hex
843        6695027 1648 1014578664 1021275339 3cdf6ccb
844        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
845      - note: there are still recomputations in global_ocean.cs32x15 and
846        offline_exf_seaice and the gradient agreement changes (gets a
847        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
848      - in general, the AD gradients still are wrong
849    o OpenAD
850      - clean up code_oad/ directories somewhat by moving files
851        dontCompile, dontTransform, keepOriginal to OAD_support/
852    o model/src:
853      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
854        (not currently tested): add dissipation terms before NLFS rescaling of
855        tendencies (previously done after).
856    o pkg/diagnostics:
857      - write stats-diags in ascii file with more digits (same as in monitor).
858    o pkg/down_slope:
859      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
860        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
861    o model/src:
862      - new file "apply_forcing.F" containing all the code previously in
863        external_forcing.F, but with new argument list: pass, as new argument,
864        the current level tendency array to update (instead of a direct update
865        of the common bloc array). Change the corresponding calls.
866      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
867        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
868    o pkg/seaice/seaice_lsr, a little bit of clean up
869      - rearrange some code blocks, so that now all calculations for
870        setting up the right-hand-sides done within one single block
871        (I find that easier to read and understand)
872      - rearrange freedrift-code to reduce the number of ifdefs
873      - adjust some indentations and comments
874    
875    checkpoint64z (2014/07/10)
876    o model/src and several pkgs:
877      - change argument list of all S/R called from external_forcing.F and
878        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
879        to pass, as argument, the current level tendency array to update
880        (instead of a direct update of the common bloc array).
881      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
882      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
883    o pkg/seaice/seaice_lsr.F
884      - always initialize local arrays in seaice_lsr_tridiagu/v
885      - add more local tapes to seaice_lsr_tridiagu/v
886      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
887        keep it in bi/bj loop; this seems to be essential
888      - gradients are still wrong but only by 4-7 orders of magnitude
889        instead of 15 orders of magnitude, lab_sea improves a little
890    o pkg/seaice
891      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
892        generates unnecessary code in seaice_lsr_ad
893      - add more store directives in seaice_lsr to avoid unnecessary code
894        in seaice_lsr_ad
895      - exclude some residual computations in seaice_lsr when
896        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
897        in seaice_lsr_ad
898      - add more storing, a new tape (model/src/the_main_loop.F) and
899        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
900        and klockey should be checked by a specialist)
901      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
902        and update lab_sea after previous changes in pkg/seaice below
903    o pkg/autodiff:
904      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
905        viscFacInAd : run time parameters allowing for adjoint switches
906        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
907    o pkg/ecco:
908      - introduce cost_gencost_boxmean.F that computes a box mean
909        temperature (for use in adjoint sensitivity studies).
910    o model/src/set_defaults.F : initialize viscFacAdj to 1.
911    o pkg/mom_common/mom_calc_visc.F:
912      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
913    o pkg/seaice/seaice_summary.F:
914      - statement for SEAICEadjMODE now in autodiff_readparms.F
915    o pkg/seaice:
916      - remove some store directives and add new ones in an effort to get
917        finally rid off the recomputation warnings. This is successful
918        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
919        defined (i.e. no extensive recomputation warnings left), but there
920        are still too many recomputations on the solver iteration level
921      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
922      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
923        SEAICE_SIZE.h
924      - add a store directive in S/R seaice_calc_viscosities
925    o pkg/seaice (ITD code):
926      - fix definition of Hlimit for multi-threaded case
927      - use double precision arithmetic to compute Hlimit: this affects results;
928        update output of experiment seaice_itd.
929    o replace content of verification/seaice_itd
930      - instead of a 1D column use the configuration of offline_exf_seaice
931        to test the ice thickness distribution code with ridging
932      - this is a first shot at this experiment
933      - change of some defaults of ridging parameters SEAICEhStar (from
934        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
935        and lot of new comments.
936    
937    checkpoint64y (2014/06/20)
938    o pkg/seaice/seaice_reg_ridge.F:
939      - modify the regularization of very small volumes of ice; only check
940        total volume HEFF, and do not apply correction to individual ice
941        classes because that leads to funny patterns in the heat and fw-fluxes
942        into the ocean. Adjust seaice_itd/results/output.txt
943      - replace nITD by SEAICE_multDim in loop-ranges
944    o pkg/exf:
945      - add code to process the case field period = -12. with UV interpolation.
946      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
947        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
948    o verification/global_with_exf:
949      - switch all fields period to -12. (was previously untested) in input/data.exf
950        (but keep secondary test ".yearly" unchanged); update the reference output.
951    o pkg/cal:
952      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
953    o pkg/exf:
954      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
955        to replace logical switch "exf_verbose"
956      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
957    o pkg/sbo:
958      - update from Katherine Quinn: evaluate mass directly from density and SSH
959        (budget using Finite Volume method) instead of from bottom pressure.
960      - allow testreport to collect few selected SBO output ; tested in exp.
961        global_ocean.90x40x15 (after updating the results, to include SBO output).
962      - fix some multi-threading issues (in output part).
963    o model/src & most packages:
964      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
965      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
966        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
967        "data.{pkg}" exist ; and leave the S/R (return) just after.
968      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
969        + call LAND_READPARMS from packages_readparms.F
970    o pkg/seaice:
971      - remove code that resets useThSice in S/R seaice_readparms and
972        replace it by a warning in S/R seaice_check
973      - remove parameter MULTDIM, replace with nITD and runtime
974        parameter SEAICE_multDim (still hard-wired to nITD if
975        SEAICE_ITD is defined)
976    
977    checkpoint64x (2014/05/24)
978    o verification/lab_sea:
979      - update adjoint and TLM output following changes to pkg/salt_plume
980      - un-do the update after putting back local recip_Cp in few places.
981    o pkg/salt_plume: modifications by An Nguyen:
982      - add capability to do brine rejection (salt-plume) as function of
983        volume+tracers (instead of only salinity tracer).
984      - conserve volume by exchanging volume from each kLev to above to
985        accommodate in-coming brine volume
986      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
987      - switch KPP surf buoyancy due to brine forcing to 3-d
988        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
989      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
990      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
991        in East/West Arctic.
992    o pkg/sbo:
993      - incorporate modifications from Katherine Quinn to enable the use of sbo
994        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
995        output for future testreport verification (unfinished).
996    o pkg/atm_phys:
997      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
998        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
999        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1000    o pkg/seaice
1001      seaice_calc_ice_strength.F: modify expression to avoid divisions
1002        (affects truncation)
1003      seaice_do_ridging.F: clean up the insectarium
1004      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1005      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1006      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1007      - add some debugging information and error messages (warnings)
1008    o model/src: modifications relatd to atmosphere p*:
1009      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1010      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1011        of vertical profile tRef in geopotential background and anomaly.
1012      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1013        and pkg/atm_phys.
1014      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1015        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1016    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1017    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1018        not used right now, but can be used in BGC packages to fix conservation.
1019    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1020        other packages too.
1021    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1022        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1023    o model/src:
1024      - since we have several heat capacity (even in model/src), define "recip_Cp"
1025        as local variable (no longer in common block) to avoid any confusion.
1026      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1027    o pkg/exf:
1028      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1029        air density as function of air Temp, Humidity and atm pressure.
1030    
1031    checkpoint64w (2014/05/02)
1032    o verification:
1033      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1034        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1035        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1036        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1037        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1038    o model/src: for atmosphere in p* coords:
1039      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1040      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1041        but not yet activated.
1042    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1043      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1044      - this changes the results (but not for any verification experiment, because
1045        none tests this), but avoids having an extra field in the restart files
1046    o pkg/seaice: remove global variable TICE (not needed)
1047      - replace by TICES or local variable where necessary (cost_seaice_test,
1048        seaice_diagnostics_state)
1049      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1050      - use specific read/write routines for reading and writing individual leves
1051        of a multilevel field
1052    o pkg/ctrl & model/inc:
1053      - move additional anomaly fields of control vars (related to options:
1054         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1055        from DYNVARS.h into new header file: CTRL_FIELDS.h
1056    o pkg/seaice: some small modifications to the ridging code
1057      - make fw2ObyRidge a global variable and add the freshwater flux to
1058        seaice_growth
1059      - pass actual thickness from seaice_prepare_ridging, so that it is
1060        computed only in one place and compute it in the same way as in
1061        seaice_growth
1062      - initialise more fields in seaice_do_ridging that where cause floating
1063        point exceptions over land
1064    o pkg/seaice: preparations for ridging code and first real ridging code
1065      - move most of "PART 1" of S/R seaice_growth into a new and separate
1066        S/R seaice_reg_ridge that will both regularize the state variable after
1067        advection call the actual ridging routine;
1068      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1069        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1070      - remove ridging code from seaice_advdiff
1071      - clean up remaining part 1 of seaice_growth in an attempt to make it
1072        more readable (this is probably subjective)
1073      - call seaice_itd_redist once in the initialisation phase to have the initial
1074        conditions in the correct category
1075      - finally: add new ridging routine for ITD code
1076    
1077    checkpoint64v (2014/04/11)
1078    o pkg/ecco:
1079      - add runtime parameters mdt[start,end]date[1,2]
1080      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1081    o pkg/seaice:
1082      - make deltaC a global variable, so that it can be used in ridging code
1083      - first step towards ridging: introduce new routines that compute
1084        ice strength based on ridging parameters
1085      - add diagnostic for HSNOWITD
1086      - add opnWtrFrac as a global variable (required for ridging scheme)
1087    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1088      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1089        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1090    o verification/hs94.1x64x5:
1091      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1092      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1093    o autodiff:
1094      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1095        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1096        For now, only in pkgs used in verification/hs94.1x64x5.
1097      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1098        which are specific to TAF/TAMC).
1099      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1100        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1101        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1102      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1103        building mitgcmuv_ad (make adAll).
1104    o pkg/ecco:
1105      - cost_gencost_seaicev4.F:
1106         reformulate proxy cost as function of sst and local param SEAICE_freeze
1107         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1108      - add stop statement if old names siv4-[sst,vol] are used
1109      - add snapshots + cost reports for atmospheric longwave
1110      - remove factor 0.1 in front of wtau[u,v]
1111      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1112         ALLOW_TMI_SST_COST_CONTRIBUTION
1113    o pkg/atm_phys:
1114      - add some diagnostics for Short-wave and for convection S/R.
1115    o pkg/seaice/seaice_growth:
1116      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1117        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1118      - rearrange loop order for better vector code in the same code block
1119      - rewrite the floeDiameter formula to have fewer divisions
1120      -  (miraculously) none of this changes the results of seaice_itd
1121    o pkg/smooth:
1122      - move param smooth2Ddiffnbt to pkg/ecco
1123    o pkg/salt_plume:
1124      - salt_plume_frac.F:
1125         clean up local param names
1126         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1127    o pkg/rw:
1128      - add RS version of S/R READ_MFLDS_LEV.
1129    o pkg/streamice:
1130      - fix the restart test by writing/reading pickup_streamice files.
1131    o pkg/seaice:
1132      - refine checks for jfnk-related parameters
1133      - comment out if statement with SEAICEuseIMEX parameter as long as there
1134        is no IMEX code to avoid confusion and surprises
1135    
1136    checkpoint64u (2014/03/07)
1137    o verification/MLAdjust:
1138      - rename secondary test suffix:
1139         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1140         0.leithD -> AhFlxF  + switch to flux-form
1141         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1142         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1143    o pkg/mom_vecinv:
1144      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1145        to be before mom_calc_visc.F)
1146      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1147      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1148        this is simpler for the adjoint and for diagnostics.
1149    o model/src + pkg/momentum:
1150      - add input files for  2-D additional Western and Southern cell-edge wall
1151         (e.g., to add "thin-wall" where it is =1).
1152      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1153        using 2nd hFacZ that is computed from initial (fix domain) hFac
1154      - known limitations of thin wall implementation: not yet coded for sigma
1155        coords; not working with CD-scheme neither.
1156    o pkg/seaice:
1157      - rename recently introduced parameters from (wrong name) AB to
1158        BDF (backward difference time discretisation)
1159      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1160    o tools/adjoint_options:
1161      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1162    
1163    checkpoint64t (2014/02/01)
1164    o pkg/ecco
1165      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1166        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1167      - replace hard-coded record number and period which only work for monthly
1168        with read-in runtime param that works for other periods (month,day,year)
1169    o pkg/thsice
1170      - corrected store directive fixes thsice adjoint gradient checks
1171    o genmake2 & testreport:
1172      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1173        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1174        Update testreport accordingly. No need to set "export OPENAD=true"
1175        in adjoint_options/adjoint_oad anymore (will be removed later).
1176    o pkg/shelfice:
1177      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1178        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1179        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1180    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1181      - Changes to make GENARR more modular (i.e. invisible if not used)
1182    o model/src/temp_integrate.F and salt_integrate.F
1183      - re-include store directives that were removed on Dec 27th.
1184    o model/src/external_forcing_surf.F
1185      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1186        seaice_model in the adjoint that is problematic when seaice_model is
1187        turned off in the adjoint. The resolved issue dated back to July when
1188        EXTERNAL_FORCING_SURF call was moved.
1189        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1190    o pkg/exf/exf_check.F
1191      - fix a small bug again (originally found by Wentao Liu, now found again)
1192      - streamline error output
1193    o pkg/streamice and aim_v23:
1194      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1195        Apple's /usr/bin/cpp knows what to do:
1196        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1197        Target: x86_64-apple-darwin13.0.0
1198    
1199    checkpoint64s (2014/01/05)
1200    o tools/adjoint_options:
1201      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1202        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1203    o model/src:
1204      - remove some unnecessary TAF storage directives in forward_step.F and
1205        in dynamics.F (note: not always removed by TAF, e.g., double storage
1206        of kappaRU,kappaRV in former version of dynamics.F).
1207    o model/src & pkg/ptracers:
1208      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1209        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1210        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1211      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1212      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1213      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1214    o useSingleCpuInput separates single-CPU input from single-CPU output;
1215        for now only implemented for in exf_interp_read.F
1216    o verification/advect_xy:
1217      - fix missing EXCH call in local version of ini_salt.F and update output.
1218    o momentum diagnostics:
1219      - fix which deltaT is used in Total-Tendency diagnostics.
1220      - fix typo in diagnostics for momentum tendency from AB.
1221    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1222        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1223    
1224    checkpoint64r (2013/12/08)
1225    o verification/*/results:
1226      - Update reference output of experiments that were passing with just 13 digits
1227         (make it easier to detect future changes in results)
1228    o model/src & pkg/ptracers:
1229      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1230        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1231        to inside ptracers_integrate.F ; remove ptracers_advection.F
1232    o coupling interface pkgs:
1233        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1234      - change the config check to test the agreement of Ocean Depth
1235        with ATM land/sea mask (instead of ATM orography);
1236      - send to coupler the number of coupler time-steps to do for this run:
1237        this allows to check for consistency and don't need anymore to be
1238        specified in parameter file "data";
1239      in coupler:
1240      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1241      - improve report to log-file of config setting (pass log-file unit to few S/R)
1242    o pkg/compon_communic:
1243      - add coupling send/receive for non-tiled integer vector;
1244      - add S/R to check and stop if any proc has an error (similar to
1245        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1246    o pkg/exch2:
1247      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1248        through list of all tiles my proc owns.
1249    o model/src:
1250      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1251        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1252        calling S/R); this affects AD results at machine truncation level:
1253        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1254        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1255    o tools/build_options:
1256      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1257    o coupling interface pkgs:
1258        [compon_communic, atm_compon_interf & ocn_compon_interf]
1259      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1260        to each S/R that needs it; remove un-used variables.
1261      - change component tile registration (cpl_register.F in both compon_interf
1262        and mitcomponent_tile_register.F) to pass the full list of tiles
1263        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1264      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1265        towards coupler global array (unless W2_useE2ioLayOut=F):
1266         a) can now use different tiling between atm & ocn comp.
1267         b) no needs to modify the run-Off map when changing tiling (was needed
1268            even if using the same tiling between atm & ocn).
1269         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1270            full land tiles); not yet tested.
1271      - check for valid mapping from comp. tile to coupler global array
1272      - improve report of tile registration results to log file.
1273    o pkg/exch2:
1274      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1275        tile-registration (CPL_REGISTER);
1276      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1277        store the local bi,bj indices of each tile;
1278      - also print bi,bj in local report to log file;
1279      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1280        Jun 2009 modif of pkg/exch2).
1281    o testing on baudelaire:
1282      - run 2 tests at a time: no significant slow down (since enough cpu) and
1283        get the full set of test done earlier
1284      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1285    o model/src/thermodynamics.F and routines called from it:
1286      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1287        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1288        velocity (outp) by adding bolus velocity.
1289      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1290        mass transport from velocity + lateral grid cell area
1291      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1292      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1293     in thermodynamics.F
1294      - remove k from thermodynamics.F and move it to temp_integrate.F
1295        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1296        loop).
1297      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1298        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1299        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1300        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1301      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1302        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1303        tutorial_tracer_adjsens (+ TLM output).
1304    o tools/OAD_support and (verification/*/) code_oad:
1305      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1306        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1307      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1308        version (closer to model/inc/CPP_OPTIONS.h).
1309    o model/src:
1310      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1311        retired list of parameters (routine FREEZE has been replace by surface
1312        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1313    o pkg/gmredi:
1314      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1315        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1316      - update output of FWD experiments: front_relax.bvp,
1317        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1318    
1319    checkpoint64q (2013/11/17)
1320    o verification:
1321      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1322        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1323      - generate new output (growth & melt) for seaice_itd experiment after
1324        updating the input pickup_seaice files (previously wrong).
1325    o pkg/cost:
1326      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1327        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1328        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1329          cannot be applied to var in common block).
1330        o allows to get results independent of tile-per-proc setting (if using
1331          slower GLOBAL_SUM_SEND_RECV option).
1332      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1333        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1334        forward gradients: update output).
1335      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1336        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1337    o pkg/mom_common:
1338      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1339        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1340        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1341        ensure that all field value that are used are set.
1342    o tutorial_deep_convection (smag3d):
1343      - add missing scaling in mom_calc_smag_3d.F;
1344      - set smag3D_coeff in input.smag3d such that results do not change.
1345    o pkg/dic:
1346      - change dic_cost.F to compute cost on each tile first and then apply
1347        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1348        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1349      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1350    o eesupp/src & pkg/mdsio:
1351      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1352        (from pkg/mdsio) since they are no longer used for tape IO.
1353      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1354        (+ keep a copy in pkg/atm_ocn_coupler).
1355    o verification/isomip:
1356      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1357    o tools/build_options:
1358      - optfile linux_amd64_ifort11, fast (no ieee) case:
1359        to get a working restart for all experiments, add "-fp-model source"
1360        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1361    
1362    checkpoint64p (2013/10/20)
1363    o pkg/autodiff:
1364      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1365        criteria, return to simple (default) tape IO format.
1366    o pkg/mdsio (+ eesupp/src):
1367      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1368        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1369      - fix globalFile and singleCpuIO options using simpler global mapping.
1370      - new pairs of scatter/gather vector S/R (one for each type, generated from
1371        template) corresponding to simpler global mapping.
1372      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1373        to globalFile when parameter globalFiles is set to True.
1374      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1375    o pkg/autodiff:
1376      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1377        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1378        missing, just add a STOP if array type do not match.
1379    o pkg/exf:
1380      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1381         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1382         and rename array obsSIce to exf_iceFraction.
1383    o tutorial_deep_convection:
1384      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1385        for now all in this exp. code dir.
1386      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1387        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1388    o eesupp/src:
1389      - added SINGLE_DISK_IO option because reading of parameter files on
1390        very large number of processors did not work with existing set-up
1391    
1392    checkpoint64o (2013/09/25)
1393    o pkg/atm_phys & atm_compon_interf:
1394      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1395    o tools/build_options:
1396      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1397        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1398        remove CPP setting (was identical to genmake2 default).
1399    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1400      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1401      - fixed up the calculation of the eddy stress and how it is added to the
1402        external forcing via taueddy_external_forcing.F
1403      - at the moment, it is very experimental and only works with the variable eddy
1404        diffusivity calculated in gmredi_k3d.F
1405    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1406        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1407    o testreport (& tools/do_tst_2+2):
1408      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1409    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1410      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1411      - add switch (for big setups) to use 'medium' memory-model (but leave it
1412        commented out for now). Note: needed with FC 19 to compile big setups.
1413    o pkg/atm_compon_interf:
1414      - regroup per field origin (model & pkgs) the coupling storage routines
1415         (which accumalate in time each coupling field)
1416      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1417        update accordingly + simplify aim_do_physics.F
1418    
1419    checkpoint64n (2013/08/26)
1420    o pkg/bbl:
1421      - update formulation to reduce dispersion of tracer properties in bbl
1422      - replaced horizontal and vertical transport parameters with velocities
1423      - changes results for verification/global_with_exf.yearly
1424    o verification/halfpipe_streamice:
1425      - change to matrix construction; update both Fwd & AD output.
1426    o verification/tutorial_tracer_adjsens:
1427      - OpenAD test: switch to vector-invariant momentum since fluxform with
1428        rStar causes problems with OpenAD; update output.
1429    o tools:
1430      - genmake2: define a common prefix for all temp-file names ; move them
1431        to local /tmp disk (but would be easy to move them back);
1432      - xmakedepend: apply the same switch for temp-files.
1433    o pkg/offline:
1434      - changes for use with rStar (NLFS): assume that we continue to provide
1435        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1436        output files) and apply r* scaling at each time-step (function of the time
1437        varying Eta field); use normal pickup files (needed for restart with NLFS).
1438    o adjoint with OpenAD:
1439      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1440        package openad.  This package has to be compiled for all runs with OpenAD
1441        instead of specifying code_oad_all as a modification directory.
1442      - link the fortran templates from tools/OAD_support to the build directory
1443        for preprocessing to avoid conflicts between different setups compiled
1444        simultaneously and simplify cleanup.
1445    o pkg/exf:
1446      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1447        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1448    o model/src:
1449      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1450        (similar to do_fields_blocking_exchanges.F).
1451    o tools/genmake2:
1452      - remove TAF output src code just before calling staf (when not doing a fresh
1453        built, will stop if things go wrong with staf).
1454      - fix target "adobj" (left from TAF version-2 transition)
1455    o pkg/diagnostics:
1456      - add a parameter to track the status of pkg/diagnostics activation;
1457        this replace/extend the use of logical param "settingDiags" (to check
1458        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1459        New S/R to print error message and stop when pkgStatus is not right.
1460      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1461    
1462    checkpoint64m (2013/08/13)
1463    o model/inc:
1464      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1465        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1466    o pkg/kpp & aim_v23:
1467      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1468    o pkg/seaice:
1469      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1470        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1471      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1472    o eesupp/src:
1473      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1474        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1475    o switch to TAF version-2:
1476      - add flow directives to "freeze" naming convention for ad-routines that
1477        are used in I/O routines of adjoint state and associated common blocks
1478        that are used in adcommon.h (backward compatible with version-1)
1479      - update all ad-optfiles (in tools/adjoint_options + few local to some
1480        verification exp) to switch to latest TAF version (currently 2.5.5);
1481        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1482        out except for diva).
1483      - the major change with TAF version-2 is that both the differentiated
1484        routines and the forward routines (new) are returned as part of the TAF
1485        output source code. Update genmake2 accordingly.
1486      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1487        with version-2 when compared to TLM or FWD gradient); other experiments
1488        output show minor changes (machine truncation level); update the few AD &
1489        TLM output with 12 matching digits only (some prior to version-2 switch).
1490    
1491    checkpoint64l (2013/08/05)
1492    o model/src:
1493      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1494      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1495        when using TAF but only if using OpenAD.
1496    o pkg/mom_common+fluxform+vecinv:
1497      - always set horiz. viscosity arrays to background value before calling
1498        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1499        only when using variable horiz. viscosity (useVariableVisc=T);
1500      - simplify mom_vecinv.F (only 1 block for momViscosity).
1501    o pkg/mom_common: variable horiz. viscosity in NH code
1502      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1503        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1504      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1505        useBiharmonicVisc & useVariableVisc.
1506      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1507        in calc_gw.F, version 1.27, 2006/06/20):
1508        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1509        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1510      - change background horiz viscosity in vertical momentum (gW) to always be
1511        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1512        any type of variable viscosity, e.g., viscAh/4Grid)
1513      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1514        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1515        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1516        default viscAh,viscA4 is zero).
1517    o model/src:
1518      - extend length of drC & recip_drC from Nr to Nr+1.
1519    o Divided Adjoint (DIVA) with MPI:
1520      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1521      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1522        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1523    
1524    checkpoint64k (2013/07/23)
1525    o tools/OAD_support:
1526      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1527        and remove it from genmake2.
1528    o tools/build_options:
1529      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1530        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1531    o verification/halfpipe_streamice:
1532      - change to driving stress formulation; update both Fwd & AD output.
1533    o tools/genmake2 and Divided Adjoint with MPI:
1534      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1535      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1536      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1537        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1538        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1539      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1540    o testreport:
1541      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1542        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1543        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1544    o verification/lab_sea (AD test):
1545      - change to test Divided Adjoint Run in this set-up (both standard AD test
1546        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1547    o pkg atm_ & ocn_compon_interf:
1548      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1549        staggerTimeStep implementation) and disable (retired) corresponding
1550        parameter.
1551    o pkg/offline:
1552      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1553      - add S/R OFFLINE_CHECK to print offline parameter summary
1554        and stop if loading a file that is not used;
1555      - enable to calculate GMRedi tensor, KPP mixing and convective index
1556        when the corresponding file(s) is/are not specified (but pkg is used).
1557      - comment out resetting of monitorFreq (to endTime) since it still useful
1558        for monitoring CFL numbers and checking offline fields.
1559    o OpenAD:
1560      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1561        smaller standard output) and generate new (smaller) output (on baudelaire
1562        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1563    o model/src:
1564      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1565        (where external_forcing_adjust was called) and change list of arguments;
1566      - merge external_forcing_adjust.F into external_forcing_surf.F
1567      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1568        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1569        previously in file "balance_relax.F", now removed); remove corresponding
1570        arrays in FFIELDS.h.
1571      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1572        a hack for getting back surfaceForcingS (loaded from file) when using
1573        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1574      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1575        (was getting only 11 digits for AD-grad, due to different truncation
1576         error in AD code).
1577    
1578    checkpoint64j (2013/07/04)
1579    o pkg/offline:
1580      - to enable the use of other features with pkg offline (e.g., obcs),
1581        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1582      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1583    o pkg/exf ALLOW_RUNOFTEMP
1584      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1585      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1586      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1587    o pkg/atm_phys:
1588      - allows to add some damping on uVel,vVel (strength only function of k).
1589    o verification, ad-tests:
1590      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1591        global_ocean_ebm and offline_exf_seaice.thsice.
1592    o verification/halfpipe_streamice:
1593      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1594        flux input boundary conditions to be ignored; a fix for this bug changed
1595        verification results for forward test.
1596      - add adjoint test.
1597    o pkg/ptracers:
1598      - allow to restart without SOM pickup (resetting SOM to zero).
1599    o pkg/gmredi:
1600      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1601      - It uses mixing length theory and suppression by steering level effects to
1602        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1603        to JPO, for more details).
1604      - It also uses the diffusivity to calculate an eddy induced streamfunction
1605        based on a PV closure (rather than a buoyancy closure as in GM).
1606      - New files added to pkg/gmredi:
1607        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1608          induced overturning streamfunction (called from gmredi_calc_tensor)
1609        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1610          for use in gmredi_k3d
1611        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1612          the eddy diffusivity
1613    
1614    checkpoint64i (2013/06/18)
1615    o pkg/cheapaml:
1616      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1617        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1618        with pkg/cheapaml.
1619    o utils/python: add subpackage for cubed sphere function, first example is
1620        simple cs.pcol to plot 2D fields on a map
1621    o pkg/streamice:
1622      - This is a new package in MITgcm, which solves dynamic equations for ice
1623         sheets and ice streams
1624      - At the moment it is independent of atmosphere/ocean dynamics, or any
1625        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1626        ed that this will change)
1627      - There is a new verification exercise that tests it, halfpipe_streamice,
1628        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1629        rectangular embayment
1630      - halfpipe_streamice is forward-only for now, will have TAF test soon
1631      - for questions, email dgoldber@mit.edu
1632    o pkg/thsice:
1633      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1634        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1635      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1636         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1637      - allow precip from pkg/cheapaml to make snow over seaice.
1638    o pkg/cfc:
1639      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1640      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1641      - change some hard-coded constant to run time parameter for reading and
1642        and interpolating atmospheric CFC ; keep same default as previously.
1643      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1644      - put arguments in standard order: myTime, myIter, myThid
1645      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1646        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1647      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1648      - new routine to print summary of CFC params and check for consistency.
1649    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1650      similar to thsice_advdiff.
1651      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1652    o pkg/cfc:
1653      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1654        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1655      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1656        hemisphere value.
1657    o pkg/seaice:
1658      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1659    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1660                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1661      - requires an additional time level that is stored in the pickup
1662      - you can start with AB2 from a pickup without this time level with
1663        pickupStrictlyMatch = .false.
1664    
1665    checkpoint64h (2013/05/26)
1666    o pkg/cheapaml:
1667      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1668        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1669      - consistent treatment of uWind,vWind location: assume everywhere in
1670        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1671        (Note: was already the case for Tair,Qair advection);
1672        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1673      - compute diabatic forcing only in the interior (excluding overlap regions)
1674      - fill in array "Qsw" (for short-wave heating);
1675      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1676        before any update (consistent with MITgcm state var diagnostics);
1677      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1678        non periodic ; + adjusted for uWind,vWind (C-grid).
1679    o pkg/seaice:
1680      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1681        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1682      - allows to compile pkg/seaice without pkg/exf.
1683    o tools/OAD_support:
1684      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1685        of array "ourStepOf" in function rvNextAction (revolve.F90).
1686    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1687      - change pkg name (to be used with other atmospheric physics pkg)
1688        but by-pass CVS when making the new pkg so that we keep the CVS history.
1689    o pkg/offline:
1690      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1691        (previously called from pkg/dic_surfforcing_init.F)
1692    o model/src:
1693      - re-order sequence of calls within packages_init_variables.F, using
1694        standard order, except for:
1695         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1696         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1697    o new pkg: atm_phys
1698      - add entry point and source code (previously in contrib
1699          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1700        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1701      - re-order sequence of calls within packages_readparms.F,
1702         packages_init_fixed.F and packages_write_pickup.F
1703        (but skip packages_init_variables.F because of TAF issues).
1704      - update contrib/*/atm_gray/ experiment.
1705    o pkg/seaice (ITD code):
1706      - simplify and fix the writing of pickup-files for ITD case
1707    o pkg/seaice (ITD code):
1708      - introduce floe size dependent lateral melt for ITD case;
1709      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1710      - update seaice_itd experiment main output.
1711    o pkg/thsice:
1712      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1713        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1714        changed accordingly pkg/atm2d.
1715    
1716    checkpoint64g (2013/05/01)
1717    o pkg/exf ALLOW_RUNOFTEMP
1718      - if defined,  river and glacier runoff temperature can be read-in from
1719        runoftempfile; runoftempfile needs to have same format as runofffile
1720    o pkg/thsice (& pkg/bulk_force):
1721      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1722        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1723      - change computation domain to always be the interior (without overlap).
1724      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1725    o verification/tutorial_global_oce_biogeo:
1726      - add preliminary OpenAD setup (still has problems)
1727    o pkg/seaice:
1728      - turn some parameters for choosing the convergence criterion of
1729        the inexact Newton method (JFNK) into runtime parameters for convenience
1730      - clean up seaice_calc_viscosities.F: remove/retire two options for
1731        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1732        the results of lab_sea/input because a division has been replaced by
1733        a multiplication with the reciprocal (sumNorm)
1734      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1735        convergence of solver (changes results, of course), and to test some
1736        new features
1737    o model/src:
1738      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1739      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1740      - move forcing adjustment (balancing surface forcing) in specific S/R
1741        where might also be applied exchanges (if needed) to forcing arrays.
1742    o pkg/shelfice:
1743      - allow to specify the Ice-Shelf mass per unit area (instead of
1744        shelficeLoadAnomaly) and do the conversion from one to the other
1745      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1746        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1747        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1748        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1749      - update isomip experiment forward output (get machine truncation error
1750        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1751    o verification/offline_exf_seaice:
1752      revise data.seaice in input.thermo and input_ad and update results accordingly
1753        HO = 0.2, SEAICE_areaLossFormula = 2,
1754        SEAICE_growMeltByConv = .TRUE.,
1755        SEAICE_doOpenWaterMelt = .TRUE.,
1756      Improve consistency with input.thsice and fix the spurious 500m ice corners
1757    o verification/global_ocean.cs32x15:
1758      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1759        in icedyn (thsice+seaice-dyn) test and update output.
1760    o verification/offline_exf_seaice:
1761      - adjust list of tested variables (with testreport) and update
1762        standard test output with better slection of monitored fields.
1763    o pkg/cd_code:
1764      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1765        experiment lab_sea.hb87
1766    o tools/genmake2:
1767      - change default makedepend from the system default to tools/xmakedepend:
1768        When no makedepend is specified, select tools/xmakedepend it the test pass,
1769        otherwise select the system default (if exist and pass the test) or
1770        try to build cyrus-makedepend ; stop if none of the 3 works.
1771    o pkg/exf & pkg/thsice:
1772      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1773        for energy content of Precip + RunOff & Evap. Assumes:
1774       1) Rain has same temp as Air.
1775       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1776       3) Run-Off comes at the temp of surface water (with same Cp)
1777       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1778        put directly into Latent Heat flux & should use water-vapor heat capacity.
1779       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1780        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1781    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1782        (compile when SEAICE_ALLOW_JFNK is defined)
1783    o pkg/thsice:
1784      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1785        implementation): move THSICE_AVE call after the advection (called directly
1786        from thsice_do_advect.F).
1787    o verification/global_ocean.90x40x15 and OpenAD:
1788      New experiment for OpenAD is identical to the one in input_ad except that
1789        multiDimAdvection=.FALSE.,
1790      There is still an issue with this.
1791    o pkg/thsice:
1792      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1793        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1794        and offline_exf_seaice (main test).
1795    
1796    checkpoint64f (2013/03/31)
1797    o verification/OpenAD:
1798      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1799    o verification/isomip, pkg/shelfice and OpenAD:
1800      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1801    o verification/tutorial_global_oce_biogeo:
1802      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1803    o verification/offline_exf_seaice:
1804      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1805    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1806      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1807    o pkg/seaice/seaice_evp.F:
1808       mask the asymmetric contribution of the ice-ocean stress (when
1809       the turningAngle is non-zero) over open water to avoid stripes
1810       in the EVP-solutions after many EVP-substeps. This does not change
1811       the verification experiment (because turningAngle=0 in that experiment),
1812       but will affect other EVP solutions with turningAngle.ne.0
1813    o verification, AD & TLM output:
1814      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1815        additions and multiplications which affect results at machine truncation
1816        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1817        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1818        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1819        digits of matching.
1820    o pkg/seaice:
1821       modify lsr-algorithm so that it vectorizes AND converges by using a
1822       "zebra" method: split vector loop into two with step size 2; this
1823       solves a general convergence problem for the JFNK solver on a vector
1824       computer. It has the potential to even improve convergence for
1825       non-vector machines, but it does change the results so it is turned
1826       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1827       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1828    
1829    checkpoint64e (2013/03/05)
1830    o pkg/ecco and several verification experiments:
1831       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1832       from ecco package, and revert to unified routine in model/src/
1833       Adjust verification experiments accordingly, especially gloal_oce_llc90
1834       Should conclude long-standing work by Gael to reconsile the_main_loop with
1835       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1836    o pkg/generic_advdiff:
1837      - implement compressible flow method for multi-dim advection (similar to
1838        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1839        TAF generates many recomputations) to use it; no yet coded with implicit
1840        vertical advection.
1841      - change experiment advect_cs (new output) and advect_xy (same output)
1842        to test compressible flow multi-dim advection.
1843    o pkg/generic_advdiff:
1844      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1845        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1846    o pkg/seaice:
1847      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1848        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1849        recover old (wrong) results by setting noSlipFac = 2. in
1850        seaice_calc_strainrates.F;
1851      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1852      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1853        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1854      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1855    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1856      - new subroutines seaice_lsr_tridiagu/v
1857      - introduce loop bounds i/jmin/max to be able to use a restricted
1858        additive Schwarz method, but not used for now.
1859      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1860      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1861    o OpenAD support
1862       Reorganize S/R call for overall time-stepping loop to facilitate
1863       OpenAD revolve loop replacement
1864       (new S/R main_do_loop.F)
1865    o model/src:
1866      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1867      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1868        ADAMS_BASHFORTH2.
1869    o pkg/cheapaml:
1870      - add new parameter (default=F, same as before) to disable full domain
1871        (including land) periodicity in X & Y dir.
1872      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1873        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1874        into single S/R CHEAPAML_TIMESTEP.
1875    
1876    checkpoint64d (2013/02/17)
1877    o pkg/monitor (angular momentum):
1878      - do not add Eta contribution to the total AM if using rigid-lid;
1879      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1880      - horizontal discretisation: compute Zonal wind contribution separately for
1881        each component (instead of from cell centered averaged) and use the 4
1882        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1883      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1884        FreeSurf) if using vectorInvariant momentum.
1885    o model/src (horizontal grid):
1886      - move initialisation of all horizontal grid arrays to null value
1887        from specific horizontal grid S/R to main S/R INI_GRID;
1888      - add 2 new arrays to project model C-grid velocity on to zonal direction
1889        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1890        compute them in S/R CALC_GRID_ANGLES.
1891    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1892        SEAICE_JFNK_tolIter
1893    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1894        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1895        i.e OLx/y-2, but overwrite the solution in the overlaps)
1896      - extend loop range in seaice_calc_viscosity
1897      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1898      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1899      - slightly modify loops in tridiagonal solver lsr-preconditioner
1900      - by default remove the extra exchange in seaice_preconditioner with a
1901        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1902      - modify offline_exf_seaice so that old results without RAS are reproduced
1903        for output.dyn_jfnk.txt
1904      in seaice_fgmres.F (unrelated to RAS)
1905      - add a cpp-flag option for a re-ordered mapping (potentially more
1906        efficient), but because this changes the results, turn it off by
1907        default
1908      - replace the save statement by local common blocks
1909    o utils/matlab:
1910      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1911      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1912        instead of local script "load_cs.m".
1913    o pkg/seaice:
1914      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1915        to the scalarProductMetric and the unrolling. By chance this does not
1916        change the verification experiment, because of the particular domain
1917        decomposition
1918    o pkg/diagnostics:
1919      - change default missing_value from UNSET_RL to -999.
1920    o pkg/layers: improve vectorization of layers_fluxcalc.F
1921      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1922        time spent in this routine by more than a factor of 3 on an NEC-SX8
1923      - step 2: replace search algorithm by a bisection algorithm found in
1924        Press et al. Numerical Recipes in Fortran. This algorithm can be
1925        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1926        For now, use this algorithm only for TARGET_NEC_SX defined.
1927      - moved the search algorithm into a separate subroutine, that is kept
1928        within the same file for automatic inlining.
1929      - modified catching potential errors
1930    o pkg/ecco:
1931      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1932    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1933      - modifications for ALLOW_GENTIM2D_CONTROL
1934      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1935      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1936      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1937      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1938    o model/src:
1939      - account for moist thermodynamics in (dry) potential temperature equation;
1940        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1941        and cpl_aim+ocn.
1942      - also switch to standard compiler (gfortran, was using ifort previously)
1943        for fizhi-cs experiments reference output.
1944    o pkg/ctrl:
1945      - 1st step toward generic time-varying control variable (2D) via CPP option
1946        ALLOW_GENTIM2D_CONTROL
1947      - note new namelist ctrl_nml_genarr in data.ctrl
1948    o verification/global_ocean.cs32x15:
1949      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1950        thsice calling sequence and update "output.icedyn.txt" output file.
1951    o pkg/ptracers:
1952      - from Ryan A.: code to allow to restart a tracer at regular time interval
1953        specifying a reset frequency and a reset-phase (for each tracers).
1954    o pkg/thsice:
1955      - implement new sequence of calls for thsice+seaice:
1956          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1957          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1958      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1959        in CPP_OPTIONS.h) to recover old sequence;
1960      - update diagnostics for Intermediate State thsice diagnostics: now filled
1961        just before advection (instead of just after advection in old sequence);
1962      - update output of experiment offline_exf_seaice (standard test);
1963      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1964        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1965    o pkg/aim_v23:
1966      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1967      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1968      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1969      - Implement new sequence of calls for seaice advection (with thsice and
1970        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1971        was done before); change aim_do_physics.F (split the bi,bj loops block);
1972      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1973    o pkg/thsice:
1974      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1975        where just seaice diffusion is used without seaice-dynamics.
1976    
1977    checkpoint64c (2013/01/18)
1978    o pkg/seaice:
1979      - add a parameter JFNKres_tFac that can replace JFNKres_t
1980        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1981      - add a line search option to the JFNK solver
1982      - move update of u/vIce and computation of initial residual into a separate
1983        routine (same file); makes the code a little easier to read (?)
1984      - the line search requires computation of the residual and for some reason
1985        I cannot do the update of u/vIce at the beginning of the Newton loop
1986        without changing the results, so we move computation of the new residual
1987        also to the end of the Newton loop, even without the line search
1988    o pkg/mdsio:
1989      - write missing value (corresponding to undefined array value) to meta files;
1990        skip this if missing value is one (UNSET_RL would be a better value for the
1991        case of undefined missing value but it's current the default missing-value);
1992        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1993    o pkg/exf & thsice:
1994      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1995        diagnostics) even when SHORTWAVE_HEATING is #undef;
1996    o verification/cfc_example:
1997      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1998        illustrate how to use it).
1999    o verification/offline_exf_seaice:
2000      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
2001        files to only one time-record.
2002      in input.thermo: narrow the 2 bands of low initial ice-concentration near
2003        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
2004        snapshot output; same mcPheePiston value as in thsice with
2005        surf-current=0.2m/s.
2006      in input.thsice: similar set-up as in input.thermo (channel with same seaice
2007        initial conditions).
2008    o verification/cfc_example:
2009      - update file "data" with more standard choice (default rotationPeriod,
2010        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
2011        set deltaTFreeSurf to deltaTtracer) and update the output.
2012    o pkg/layers:
2013      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
2014      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
2015    o verification/offline_exf_seaice:
2016      - set all {field}period to zero for constant-in-time forcing (not tested
2017        anywhere else).
2018    o verification/offline_exf_seaice:
2019      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
2020      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
2021    o model/src:
2022      - implement Finite-Volume method for (hydrostatic) presure gradient
2023        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
2024    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
2025      - In order to be compatible with the default EVP code, this requires changing
2026        the EVP code around a little; and because any small change immediately
2027        breaks the lab_sea.hb87 verification experiment, the reference output is
2028        updated two times (each time the remaining aggrement was only 2 digits):
2029        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
2030        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
2031        The adjoint test lab_sea.evp also needed to be updated.
2032      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
2033        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
2034        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
2035        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
2036        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
2037        kept obscure, because I need to test it a little more.
2038    o pkg/cheapaml:
2039      - fix few incorrect type (_RL/_RS) in subroutine calls.
2040    o pkg/seaice:
2041      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
2042        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
2043    o model/src:
2044      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
2045        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
2046        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
2047    o pkg/cheapaml:
2048      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
2049        update output of experiment cheapAML_box.
2050      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
2051        and set them only in one place (cheapaml_readparms.F).
2052      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
2053      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
2054        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
2055    o model/src/the_main_loop.F:
2056      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
2057    o pkg/seaice:
2058      - remove legacy branch code.
2059      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
2060    o verification/*/code*/SEAICE_OPTIONS.h:
2061      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
2062        SEAICE_CAP_HEFF).
2063    o pkg/cheapaml:
2064      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
2065        to load new forcing fields.
2066      - add missing "_d 0" where it's needed; + some editing (improve indentation).
2067      - remove switch to "-r8" compiler option (no longer needed) in verification
2068        cheapAML_box, keep same output (small trucation error differences).
2069    o verification/offline_exf_seaice:
2070      - add thermodynamics only test.
2071    o verification/cheapAML_box:
2072      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
2073        keep same output (same 14 digits for cg2d).
2074      - switch on "-r8" compiler option (some numerical values are missing
2075        the "_d 0") and update output (only 6 digits for cg2d were preserved).
2076    
2077    checkpoint64b (2012/12/24)
2078    o pkg/cheapaml:
2079      - remove un-used variables (Qnet,EmPmR) from pickup files.
2080      - store tendency of advected variables into cheapaml pickup file
2081        and fix the AB-2 restart.
2082    o verification/offline_exf_seaice and lab_sea adjoint:
2083      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
2084      - switch to 4 time steps in offline, consistent with lab_sea.
2085      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
2086      - update results after change of experiment seaice.
2087    o pkg/seaice:
2088      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
2089        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
2090        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
2091        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
2092    o model/src:
2093      - add run-time parameter to select CG2D solver minimum-residual solution
2094        (in case of a poor convergence).
2095    o pkg/seaice/seaice_lsr.F
2096      - move calculation of matrix coefficients into new
2097        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
2098        file; the main purpose of this change is to be able to reuse the code
2099        in S/R SEAICE_PRECONDITIONER
2100      - modify the computation of the residual so that the mass of sea-ice
2101        is not used twice; this simplifies the calculations, but since
2102        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
2103        not tested in testreport---this does not affect the testreport results.
2104    o verification/seaice_obcs:
2105      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
2106        verification/lab_sea/input.salt_plume; changes results/output.txt*
2107    o model/src:
2108      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
2109    o pkg/seaice:
2110      - improve description of parameters in seaice_fgmres.F and start
2111        cleaning up the code
2112      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
2113        second argument
2114      - add a metric based on grid cell area to SEAICE_SCALPROD; update
2115        results of offline_exf_seaice.dyn_jfnk
2116      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
2117    o pkg/aim_v23:
2118      - fix an other bug in dissipation heating (grid-cell area was missing).
2119    o model/src + pkg/seaice:
2120      - add global (multi-tile) linear solver for pair of tri-diagonal system
2121        along X and Y lines, respectively for U and V component.
2122        Note: 1) MPI and cube-exchange not yet coded.
2123            2) probably not accurate for poorly conditioned / large size problem.
2124      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
2125        default: not compiled and not used.
2126    o pkg/seaice:
2127      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
2128        introduce bi/bj loops and use global_sum_tile_rl instead of
2129        mpi_allreduce in seaice_fgmres.F
2130      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
2131      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
2132      - add a verification experiment for JFNK in offline_exf_seaice
2133    o verification:
2134      - change (for now, only fwd test) offline_exf_seaice experiment:
2135        use a re-entrant channel with idealized coastline (trapezoidal shape)
2136        at southern boundary to explore seaice dynamics and thermodynamics
2137        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
2138        secondary test (input.thsice) use thermodynamics only with SST relaxation.
2139      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
2140    o pkg/exf:
2141      - disable "sstExtrapol" when Nr=1
2142    o verification:
2143      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
2144        to test pkg/cheapaml.
2145    o pkg/aim_v23 & pkg/shap_filt:
2146      - fix dissipation heating (erroneous gravity multiplication factor).
2147    o pkg/seaice:
2148      - remove unused field pressPre from jfnk solver
2149      - rename two subroutines in seaice_preconditioner.F
2150    o eesupp/src:
2151       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
2152    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
2153       - remove wrong parts of the rhs and the lhs (were in there
2154         because I did not understand the concept of this preconditioner)
2155       - add an exchange between u- and v-sweep. This increases communication
2156         by a factor of two but improves the convergence of jfnk. Ideally,
2157         one would like the u- and v-sweep to be independent. So far within
2158         undocumented ifdefs
2159       - reorganize the extra computations for printing the residuals
2160    o tools/genmake2:
2161      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
2162        since it's not necessary (and was preventing to use MNC in some cases).
2163    
2164    checkpoint64a (2012/11/16)
2165    o pkg/autodiff:
2166      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
2167        autodiff_readparms.F no longer depends on calling order (within
2168        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
2169        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
2170        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
2171    o pkg/obcs:
2172      - adding tidal velocity forcing capability to obcs
2173        for usage example, see verification/seaice_obcs/input.tides
2174    o pkg/seaice:
2175      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
2176        SEAICE_LSRrelaxU/V
2177      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
2178    o pkg/aim_v23:
2179      - implement heating from friction (bottom friction and stratospheric drag).
2180    o pkg/shap_filt:
2181      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
2182        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
2183    o model/src:
2184      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
2185        time-constant addMass field from file (addMassFile);
2186      - support for heating due to friction (and Kinetic Energy dissipation):
2187        add option, run-time switch and 3-D field array + support code ; each pkg
2188        or S/R can add heating contribution (if there is a sink of KE); the sum is
2189        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
2190    o pkg/seaice:
2191      - complete merge of ITD code into seaice_growth.F
2192        from MITgcm_contrib/torge/itd/code/
2193        no verification so far, but Torge Martin tested
2194        "1-D test case and Beaufort set up;
2195        deliver okay results after 1 model year."
2196      - complete merge of SEAICE_SIZE.h into all relevant routines
2197      - move computation of eta at Z-points into calc_viscosities
2198        + introduce global field etaZ
2199        + add different methods for computing etaZ, for now the old
2200          method (simple averages of eta to Z-points) is hardwired
2201        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
2202          seaice_preconditioner
2203      - simplify computations for SEAICE_ZETA_SMOOTHREG
2204      - seaice_preconditioner:
2205        + replace one remaining press by pressLoc (mistake)
2206        + adjust printing of residuals
2207      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
2208        + add (SEAICE.h) and rename some counters (initiliased in
2209          seaice_init_fixed.F)
2210        + add _BEGIN/END_MASTER (myThid)  around print statements
2211        + print total number of iterations and failures over SEAICE_monFreq
2212          interval to STDOUT
2213      - move control over output-messages by fgmres to seaice_jfnk to save
2214        some operations
2215      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
2216        in order to make restarts with sol .ne. zero (fgmres with restarts)
2217        (seaice_jfnk.F, seaice_fgmres.F)
2218      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
2219        a serious convergence problem when open boundaries are involved
2220    o pkg/ggl90: fix computation of control volumes for the case of
2221      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
2222      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
2223    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
2224    o pkg/autodiff
2225      - Add inAdMode switch for SEAICEuseDYNAMICS:
2226        SEAICEuseDYNAMICSinAdMode
2227        (extend logic in ADAUTODIFF_INADMODE_SET)
2228    o pkg/seaice
2229      - Step 1 of merging ice-thickness distribution (ITD) code from
2230        MITgcm_contrib/torge/itd/ (author: Torge Martin)
2231        The code implements concept laid out in Thorndike et al. (1975);
2232        code is enabled via CPP flag SEAICE_ITD
2233        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
2234        code is not complete yet!!
2235      - SEAICE_SIZE.h now included in almost all seaice routines
2236    o verification (using seaice):
2237      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
2238        global_ocean.cs32x15.seaice ; update results.
2239      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
2240      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
2241        offline_exf_seaice (previously compiling B-grid).
2242    o pkg/exf:
2243      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
2244        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
2245        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
2246    o pkg/layers (adjust changes from Sept 19):
2247      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
2248        this allows to remove "layers_maxNum" dimension from all layers arrays.
2249    o pkg/layers (adjust changes from Sept 19):
2250      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
2251      - snap-shot extended to all type of layers (not just the 1rst type);
2252      - remove layers variables when corresponding CPP option is undef.
2253    o pkg/layers:
2254      - rename pkg/layers variable and add new output (layer exist & un-weighted
2255        velocity in layer)
2256    o pkg/seaice:
2257      - simplify (?) ocean-drag coefficent computations by using
2258        the same routine in all three solvers (saves some code lines)
2259      - remove global fields DRAGA and DRAGS from C-grid code and
2260        declare them locally in lsr.F (the only place where they are
2261        still used)
2262      - update AD output of lab_sea.evp (very sensitive anyway).
2263    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
2264      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
2265      and SEAICEuseJFNK=.true. A few things to note:
2266      - involves a FGMRES, that is parallel but very inefficient,
2267        because of many scalar products (global sums) in the Gram-Schmidt
2268        orthogonalization method. Needs to be replaced. Original code
2269        from J.-F. Lemieux
2270      - preconditioner for FGMRES is a stripped down version of LSOR
2271      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
2272        preconditioner. For the preconditioner, the default is set to 10.
2273      - Jacobian times vector is computed with finite differences
2274      - marginally related to JFNK-solver: add a smooth regularization for
2275        zeta with tanh that will improve convergence (Lemieux and Tremblay,
2276        2009) for any implicit solver (not implemented for EVP because EVP
2277        does not need this regularization in the first place). Define
2278        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
2279    o eesupp/src:
2280      - check in genmake2 that intrinsic S/R flush is available.
2281      - add S/R to flush IO unit (if intrinsic S/R flush is available)
2282      - flush standard & error msg unit before MPI termination
2283      - if debugMode, flush IO unit after printing msg
2284    o pkg/ctrl:
2285      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
2286        to ctrl_set_unpack_xyz.
2287    
2288    checkpoint64 (2012/10/09)
2289    o pkg/shelfice
2290      - in mom_fluxform.F, mom_vecinv.F:
2291        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
2292        Bug fix KappaRU -> KappaRV
2293        does not change verification/isomip but may change other setups
2294        (presumably constant KappaRU=KappaRV)
2295      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
2296    o pkg/obcs:
2297      - fixed some indexing bugs in obcs_seaice_sponge.F
2298      - added obcs relaxation subroutines for HSALT and HSNOW
2299      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
2300    o pkg/seaice:
2301      - add "multicategory" parameterization for snow in analogy to ice,
2302        default is off for now.
2303    o pkg/obcs:
2304      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
2305        see verification/seaice_obcs/input.seaiceSponge for example application.
2306      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
2307        index setting by master-thread. This fix multi-threads Pb in previous modifs.
2308    o pkg/layers :
2309      - add diagnostics to pkg/layers
2310      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
2311        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
2312    o pkg/generic_advdiff/gad_implicit_r.F :
2313      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
2314    o pkg/seaice/seaice_growth.F:
2315      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
2316    o pkg/obcs:
2317      - change default setting of OBCS_UVICE_OLD from defined to undef;
2318      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
2319        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
2320      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
2321      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
2322        with Southern & Western OB at a tile edge (at least in a simple set-up).
2323    o pkg/obcs:
2324      - change settings of OB index in case OB coincides with tile edge (shared by
2325        2 tiles), so that common OB location is registered by both tiles (instead of
2326        only 1). However, for Southern and Western OB, index value = 0 is not
2327        recognized as valid OB index (=default null value) and needs to be fixed.
2328      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
2329      - new parameter "OB_indexNone" for null index value (for now, still zero)
2330        to replace hard-coded null index value of zero.
2331    o pkg/exch2:
2332      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
2333        always check buffer-size (but outside the loop); move checking for valid
2334        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
2335        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
2336    o pkg/ctrl (pack & unpack):
2337      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
2338        (locally defined) for different variables (+ remove the variable-specific
2339        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
2340        (to be extended to other local file names in ctrl.h).
2341    o pkg/flt:
2342      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
2343    o pkg/mdsio:
2344      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
2345    o tools/genmake2:
2346      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
2347        (added by Alistair in version 1.51 for building without make depend);
2348      - remove Header files list (H_SRC_FILES) from the dependence of targets
2349         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
2350        place in version 1.23): this save going through staf when unrelated header
2351        file has been modified.
2352       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
2353        "make depend" step, still need to do "make links" before "make adtaf".
2354    o eesupp/src (+ few pkg src files) & genmake2:
2355      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
2356      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
2357      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
2358         upper/lower case ; account for space between "#" and undef/define)
2359    o pkg/flt (with exch2):
2360      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
2361      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
2362    
2363    checkpoint63s (2012/09/05)
2364    o pkg/ecco:
2365      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2366      - add more relevant #ifdef ALLOW_SMOOTH ones.
2367      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2368    o pkg/ctrl:
2369      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2370        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2371      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2372        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2373        ctrlSmoothCorrel3D (new).
2374        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2375      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2376      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2377        controls when useAtmWind, and vice versa.
2378      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2379      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2380          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2381      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2382          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2383      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2384        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2385    o pkg/smooth:
2386      - remove un-necessary includes.
2387      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2388        Those CPP options were never defined, and not necessary.
2389    o model/src:
2390      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2391      - standard treatment of useSMOOTH.
2392    o pkg/autodiff:
2393      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2394        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2395    o pkg/exch2:
2396      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2397        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2398      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2399        and tiles to process mapping.
2400      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2401        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2402        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2403        from w2_eeboot.F to w2_readparms.F.
2404    o eesupp/src:
2405      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2406        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2407        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2408      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2409        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2410        has been called.
2411      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2412      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2413        (so that on 1 proc, get same myPid independently of usingMPI)
2414      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2415        useCubedSphereExchange with EXCH-1 (safer).
2416      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2417    o pkg/ggl90:
2418      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2419        used in ALLOW_GGL90_SMOOTH code.
2420    o pkg/flt:
2421      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2422        floats at the Southern end of the domain).
2423    o eesupp/inc:
2424      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2425        but not used (and not to be used) anywhere, just for documentation.
2426    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2427      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2428        a) can damage previously written records in any other multi-record files.
2429        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2430    o tools/genmake2:
2431      - define variable MAKE within Makefile and use it in place of 'make';
2432      - update AD_CONFIG.h (if needed) before building any of the executable
2433        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2434        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2435      - always print usual warning comment 'this file is automatically generated'
2436        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2437    o pkg/cheapaml:
2438      - updated to correspond to the code used in accepted paper (Nico Wienders).
2439    o pkg/exf:
2440        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2441        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2442        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2443    o pkg/exf, autodiff, ctrl, ecco and seaice:
2444        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2445    o pkg/ctrl, ecco:
2446        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2447        Depending on useAtmWind, one is inactive, and the other is active (see
2448        exf_getffields.F/exf_getsurfacefluxes.F).
2449    o tools/genmake2:
2450      - improve error msg when failing in 2nd test of check_for_broken_Ff
2451      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2452      - source local config file "genmake_local" just after processing the genmake2
2453        command arguments (previously done before processing arg).
2454    o pkg/grdchk:
2455      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2456        to this routine from cost_final has been dropped in g_cost_final)
2457      - improve printed information (more explicit msg, no longer using "print *,"
2458         fix fcpertminus printed value).
2459    o model/src:
2460      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2461        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2462        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2463    o pkg/dic:
2464      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2465        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2466    o pkg/grdchk:
2467      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2468      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2469    o pkg/autodiff/ctrl/grdchk :
2470      - attempt to sort out what works and what does not,
2471        with regard to I/O, and to warn/stop accordingly.
2472    o pkg/grdchk:
2473      - attempt to fix grdchk in the case of useSingleCpuIO.
2474      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2475       statements were moved from grdchk_main.F and into
2476       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2477      - a global sum is applied to record numbers icvrec/layer
2478       out of grdchk_loc so that they be passed to I/O routines.
2479    o pkg/smooth:
2480      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2481        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2482    o verification/testreport:
2483      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2484      - can also use compressed (gzip) reference output file;
2485      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2486        to be easier to collect by testreport.
2487      - update existing TLM output (half out-of-date by more than 3 yrs).
2488      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2489      - report run-time in each individual summary (previously only for AD test);
2490        for TLM test, add also TAF version.
2491      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2492    
2493    checkpoint63r (2012/08/15)
2494    o tools/genmake2:
2495      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2496    o pkg/ecco/ecco_cost_final.F :
2497      - fix fc print statements (to stdout and costfunction0000) so
2498        that the printed value is always after the global sum.
2499    o pkg/seaice/seaice_dynsolver.F :
2500      - fix ice strength assymptote at SEAICE_area_max<1
2501        (no change for the standard case of SEAICE_area_max=1)
2502    o some cleaning:
2503      - pkg source files: ensure that all *.F files from each pkg included the
2504        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2505        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2506        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2507        includes;
2508      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2509      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2510        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2511        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2512      - update option-file CPP_OPTIONS.h of all AD experiments:
2513        * no longer include PACKAGES_CONFIG.h ;
2514        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2515        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2516          including ECCO_CPPOPTIONS.h).
2517    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2518      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2519        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2520        not necessary accurate).
2521      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2522        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2523        deliberately break compilation (a remainder that it needs to be customized)
2524      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2525      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2526      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2527    o tools/genamke2:
2528      - check for lapack.
2529    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2530      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2531        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2532        from both packages.
2533      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2534      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2535      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2536        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2537    o pkg/cost : add comments to explain special and/or untested setups.
2538    o pkg/exf:
2539      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2540        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2541    o verification/*/code_ad:
2542      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2543      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2544      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2545        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2546    o pkg/seaice :
2547      - added possibility to change ice strength/PRESS0 relationship to
2548        HEFF, according to the following run time parameters
2549        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2550        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2551        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2552    o pkg/ggl90 :
2553      - added run time flag mxlSurfFlag to include the code that ensure
2554        mixing between first and second level (previously included as a comment)
2555    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2556      - add test of newly added dumpAdByRec=T option where
2557        we write all records to one file per variable.
2558    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2559      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2560        to check that this code is ok with taf and compiles in adjoint.
2561    o pkg/autodiff :
2562      - added run time param dumpAdByRec : ad dump format switch.
2563        If true then write all records to one file per variable.
2564        Else write one file per record (remains the default).
2565      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2566    o pkg/seaice:
2567     - Added SEAICEuseTILT run time switch : if set to
2568       false then omit the tilt term in seaice dynamics.
2569     - Fix free drift calculation.
2570    o pkg/shelfice:
2571      When initializing SHELFICEDragQuadratic, set default to be
2572      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2573      but retain option to set it independently
2574      (inconsistenty spotted by Veronique Dansereau)
2575    o eesupp/inc:
2576      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2577         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2578    o model/src:
2579      - move balancing of relaxation terms to new S/R balance_relax.F.
2580    o pkg/autodiff:
2581      re-write active I/O high-level (control) S/R:
2582      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2583      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2584      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2585        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2586      - update and merge active_file_control_slice.flow into active_file_control.flow
2587      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2588        active_file_ad.F) keeping the argument list and function unchanged.
2589      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2590        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2591      - new low-level active I/O routines, one for each type (RL/RS), for active var
2592        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2593        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2594        right type.
2595    o autodiff and RS=real*4:
2596      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2597        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2598      - change argument type of 3-D mask argument to _RS to match type in the call
2599        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2600    o pkg/thsice:
2601      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2602      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2603        fresh-water flux: uniform correction or proportional to local precip.
2604    o pkg/ctrl:
2605      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2606      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2607                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2608      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2609    
2610    checkpoint63q (2012/07/30)
2611    o pkg/autodiff:
2612      note about monitor and snap-shot of ad-variables:
2613      a) need to apply ADEXCH before monitor or output of ad-vars to include
2614       overlap contributions (was done for adjDump but missing for monitor).
2615      b) since ADEXCH implies adding overlap values to interior array, machine
2616       truncation error is expected when adding an ADEXCH call in the middle of
2617       the time-stepping (although mathematically identical).
2618      modifs:
2619      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2620        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2621      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2622        apply ADEXCH before monitor or snap-shot of ad-variables:
2623           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2624      - implement new method (copy+adexch) for snap-shot and monitor of main model
2625        ad-vars (initially not used by default -> output unchanged).
2626      - change default (set to 2) to use new method and update few output_adm.txt
2627        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2628        and both tutorial_tracer_adjsens tests).
2629      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2630        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2631    o pkg/ctrl:
2632      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2633      generic control variables via
2634      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2635      Only required customization should be S/R ctrl_map_ini_genarr.F
2636      (routine in repository contains example)
2637    o pkg/exf:
2638      - fix and refine checking of surface-relaxation setting when using EXF
2639    o verification (adjoint exp):
2640      - reduce length of simulation by half for experiment global_ocean.cs32x15
2641        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2642    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2643      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2644        of KE that can occur with aggressive optimization
2645      + put quadratic bottom drag calculation in separated loops (only done if
2646        using bottomDragQuadratic)
2647    o model/src: CG2D_NSA
2648      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2649         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2650      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2651         change cg2d residual target to be expressed in Wunits (=> do not normalise
2652         RHS ; this fix global_max Pb with TAF); update output.
2653    o verification/tutorial_tracer_adjsens:
2654       improve parameter consistency (and get rid of warnings):
2655       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2656       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2657       - use staggerTimeStep (for stability) in som81; use default rotation period.
2658    o pkg/exch2:
2659      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2660        reset to 0 = 1 long line in X)
2661    o pkg/mdsio:
2662      - fix reading of dimensions from meta file for large-size domain
2663    o model/src:
2664      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2665      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2666        Cubed-Sphere Exch with CS-corners inside the domain;
2667        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2668        globalArea and to set hasWetCSCorners.
2669      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2670        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2671      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2672        useCDscheme and useCubedSphereExchange).
2673    o pkg/seaice/seaice_growth.F :
2674      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2675        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2676        when the previous code was not correct.
2677      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2678      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2679        that term to QNET (essentially to set the melt/freeze water to 0degC).
2680        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2681    o verification/global_ocean.cs32x15/input.seaice :
2682      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2683      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2684      - update results (output.seaice.txt) accordingly.
2685    o verification/lab_sea/input/data.seaice :
2686      - remove SEAICEheatConsFix, which is now be tested
2687        in global_ocean.cs32x15. The presently coded fix
2688        is only consistent with real fresh water + nlfs.
2689      - update results (output.txt) accordingly.
2690    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2691    o AD_CONFIG.h file:
2692      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2693      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2694        add it explicitly in each fortran src file where it is needed.
2695        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2696        thus introducing potentially wrong dependency; therefore, better to include
2697        it only where it's really needed, and after any other included OPTIONS file
2698        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2699        or ALLOW_TANGENTLINEAR_RUN).
2700    
2701    checkpoint63p (2012/07/06)
2702    o pkg/autodiff:
2703      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2704      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2705        which are now read from new parameter file "data.autodiff" (inAdExact
2706        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2707      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2708      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2709        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2710    o verification/tutorial_tracer_adjsens/
2711      - add extra sub-verification which uses "SOM" advection scheme
2712        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2713          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2714        and in data:
2715          multiDimAdvection=.TRUE.,
2716          tempAdvScheme=81,
2717          saltAdvScheme=81,
2718    o model/src:
2719      - introduce ALLOW_BALANCE_RELAX which allow the removal
2720       of the global mean of relaxation terms by setting
2721       balanceThetaClimRelax and balanceSaltClimRelax
2722      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2723       This case is now treated appropriately in seaice_growth.F
2724    o pkg/seaice:
2725      - do balanceEmPmR and balanceQnet based on the net fluxes
2726        (SItflux) that enter the ocean+ice system rather than QNET
2727        and EMPMR. Works best in real fresh water.
2728      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2729        out of the diagnotics bloc, and stored in global arrays.
2730    
2731    checkpoint63o (2012/06/29)
2732    o vertical mixing schemes:
2733      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2734      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2735        to S/R FIND_RHO_SCALAR
2736      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2737        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2738        affects output (vermix.ggl90) at truncation level.
2739    o testreport:
2740      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2741        (nSx,nSy) for the number of threads (from eedata.mth)
2742    o model/src:
2743      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2744        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2745    o verification/tutorial_tracer_adjsens/
2746      - compile with ALLOW_CG2D_NSA
2747      - run with nonlinFreeSurf=3
2748      - update reference output_adm.txt
2749    o tools/genmake2:
2750      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
2751        refine usePROFILES switching off (only when NetCDF is not available).
2752    o verification (atmospheric set-up):
2753      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
2754    o pkg/profiles : refine profiles and files handling.
2755    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
2756    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
2757      - changes to use model/src/the_main_loop.F rather than the ecco version
2758        in ecco type adjoint runs.
2759    o model/src:
2760      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
2761      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
2762      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
2763    o model/src:
2764      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
2765        update output of test experiment bottom_ctrl_5x5.
2766    o pkg/generic_advdiff:
2767      - implement vertical bi-harmonic diffusion (for now, only for T & S and
2768        only explicitly).
2769    o verification/bottom_ctrl_5x5/
2770      update reference output (results changed quite some time ago,
2771      not sure when; but new reference results look ok in terms of grdchk)
2772    o verification/1D_ocean_ice_column/
2773      For verification purposes, the exact adjoint rather than an approx.
2774      should be used (e.g., to comare against F.D. or TLM).
2775      removed autodiff_inadmode*_ad.F routines in code_ad/
2776      Update results/ accordingly.
2777    o pkg/cal:
2778      - change cal_getdate.F so that output date is function of input time only
2779        (less ambiguous, not mixed up with input iteration number).
2780      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
2781    o pkg/diagnostics:
2782      - implement calendarDumps also for stats-diags
2783      - implement calendarDumps also for snap-shot output (negative freq)
2784      - for now, ignores calendarDumps if non-zero phase-lag.
2785    
2786    checkpoint63n (2012/06/04)
2787    o model/src:
2788      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
2789        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
2790      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
2791        similar to calc_r_star.F); update results of experiment internal_wave and
2792        tutorial_global_oce_in_p (affected @ truncation level).
2793    o pkg/shelfice:
2794      - add parameterisation of advective-diffusive flux into the ice shelf
2795        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
2796      - simply eps3/3a computation
2797    o eesupp:
2798     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
2799       between tiles, just fill-in edges assuming locally periodic subdomain) and
2800       add corresponding exchange subroutines (EXCH0);
2801     - new CG-solver version (_EX0) for disconnected-tiles special case.
2802    o model/src (CG-solvers):
2803     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
2804       (similar final residual output and max-Iter number as with standard version);
2805     - allows to store and use lowest-residual solution (standard & _SR versions);
2806     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
2807     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
2808    o eesup/src:
2809     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
2810       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
2811    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
2812    
2813    checkpoint63m (2012/04/27)
2814    o pkg/shelfice:
2815     - account for partical cells in surface level below ice-shelf for hydrostatic
2816       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
2817    o ad test experiments:
2818     - update and rename to "ad_optfile.local" local AD-optfile specific to a
2819       particular adjoint verification experiment (in verification/*/code_ad/)
2820  o pkg/seaice & pkg/exf:  o pkg/seaice & pkg/exf:
2821     Part two of ECCO-CLIVAR code merges.   - Part two of ECCO-CLIVAR code merges.
2822     Completes merge of seaice area relax. code.     Completes merge of seaice area relax. code.
2823     Requires unified CPP option EXF_ALLOW_SEAICE_RELAX     Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
2824     to be set in EXF_OPTIONS.h since this pkg controls its I/O     to be set in EXF_OPTIONS.h since this pkg controls its I/O
2825     (and avoids second CPP option in SEAICE_OPTIONS.h)     (and avoids second CPP option in SEAICE_OPTIONS.h)
2826     - change default value of costIceStart & costIceEnd to a valid date.
2827     - add snowPrecip to HSNOW in seaice_growth
2828  o pkg/ptracers:  o pkg/ptracers:
2829   - move ptracers summary and setup check into separated S/R ; add a check for   - move ptracers summary and setup check into separated S/R ; add a check for
2830     valid PTRACERS_Iter0 value (error+stop or just warning).     valid PTRACERS_Iter0 value (error+stop or just warning).

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