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revision 1.1675 by heimbach, Mon Jun 25 19:25:41 2012 UTC revision 1.2168 by heimbach, Thu Jul 2 15:59:16 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    o pkg/seaice:
12     - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
13     - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
14       delta with a smooth function in s/r seaice_calc_viscosity
15       (no effect on EVP)
16     - rename local suffix "sqr" into "sq" for more consistent variable names
17    o pkg/seaice: add new parameter SEAICE_deltaMin that is used ***only***
18      for regularizing Delta (and nothing else, like the parameter
19      which is also used for all sorts of things SEAICE_EPS). Defaults to
20      SEAICE_EPS for backward compatibility only.
21    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
22      the wrong key by inialising it before use -> fixes a recomputation
23      problem but does not fix the gradient
24    o pkg/layers:
25      - move resetting of flux arrays to outside the iLa loop
26        (this caused layers_diapycnal to not work with more than one layer coord.)
27      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
28    o pkg/layers:
29      - remove from common block 3D layers fields (used to diagnose transport
30        in tracer coords) and declare them as local arrays in layers_calc.F
31    o pkg/seaice:
32      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
33        in lab_sea forward experiment (changes results -> updated)
34      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
35    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
36      computations; for SEAICE_VECTORIZE_LSR
37      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
38        sweep to the outside,
39      - remove store directives and add "CADJ loop sequential" directives
40        in analogy to model/src/solve_tridiagonal.F
41      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
42        boundaries to yield more readable code. This has also the charming side
43        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
44        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
45        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
46        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
47        an additional option)
48       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
49       but the adjoint gradients (which are affected by this change) still explode.
50    o coupler (atm & ocn _compon_interf):
51      - avoid using Exch2 IO mapping if not suitable.
52    
53    checkpoint65m (2015/06/15)
54    o pkg/layers:
55      - clean-up old parameters setting (from Sep 2012):
56        + remove old parameters setting from common block (declared locally);
57        + stop if any old parameter is mixed with new parameters;
58        + check for valid or consistent parameter setting (e.g., layers_name)
59      - check that layers_bounds for Pot.Density are in the right range;
60        this is supposed to catch un-updated setting after recently shifting
61        potential density field "prho" by -1000 (now in "sigma" scale).
62    o pkg/layers:
63      - Added missing call to layers_fill for keeping track of tottend in
64        pkg/diagnostics/diagnostics_fill_state.F
65    o pkg/layers:
66      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
67        of diapycnal fluxes
68    o pkg/layers:
69      - reverted changes to interpolation to previous treatment; there
70        was never actually a problem
71    o pkg/layers:
72      - fix interpolation of layers tracers in the presence of partial cells
73      - add lots of new functionality to compute water mass transformation
74        (enabled by CPP flag LAYERS_THERMODYNAMICS)
75      - add new calls from main code (diags_oceanic_surf_flux.F,
76        thermodynamics.F, impldiff.F) and gad to save the necessary fields
77        for layers_thermodynamics calculations
78    o pkg/ptracers:
79      - add capability of stepping a passive tracer forward without advection
80        by setting PTRACERS_advScheme to 0.
81    o pkg/diagnostics:
82      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
83    o pkg/layers:
84      - shift potential density field "prho" by -1000 for density layer averaging so
85        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
86        Note that density bin boundaries (layers_bounds in data.layers) have
87        to be set accordingly (i.e., shifted, in sigma scale).
88    o pkg/layers:
89      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
90      - fix calculation of layer non-weighted velocity and layer probability
91      - add diagnostics for pot.density used for layer averaging
92    o pkg/seaice:
93      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
94        positiveness, modify a few comments and improve variable names,
95      - the changed computation of deltaC affects most seaice-related
96        experiments at the truncation level.
97        seaice_itd.thermo is affected by far the most, with
98        only 7 digits of agreement remaining; update experiments.
99    
100    checkpoint65l (2015/05/04)
101    o pkg/shelfice:
102      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
103        factor drKp1 to zero where it is negative (ie. do not use
104        SHELFICEBoundaryLayer if hFacC>1)
105      - the same for factor drLoc in shelfice_forcing.F
106    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
107        with modules in ptracers, when using testreport option "-small_f"
108    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
109      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
110    o verification/testreport
111      - add new option -small_f
112        with this option testreport first makes the target small_f (*.f files)
113        before running make (all). This is useful for explicit inlining when
114        all sources need to be full available.
115    o pkg/exf/exf_interp.F:
116        remove previous changes related to reverse (decreasing) input grids latitude
117    
118    checkpoint65k (2015/04/01)
119    o pkg/ecco:
120        fix missing cosphi initialization; use eccoiter in place of optimcycle;
121        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
122        instead of active read/write
123    o pkg/ctrl:
124        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
125        instead of active read/write.
126    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
127        return if .NOT.useAUTODIFF
128    o pkg/seaice: add CPP brackets (cost function related).
129    o model/src:
130        add useAUTODIFF run time switch.
131    o pkg/exf/exf_interp.F:
132        add code to allow input grids with latitude starting in the north (i.e. when
133        j=1 corresponds to northern edge of field); modify global_with_exf to test
134        this feature.
135    o verification/testreport:
136      - replace "grep -A3" with POSIX conformal sed command, because there are
137        implementations of grep that cannot do contextual searches
138      - replace "cat -n" by "nl" (two occurrences), because not all implementations
139        of "cat" have the option "-n"
140    o model/src:
141        add new file gsw_teos10.F that contains 3 functions, more or less a copy
142        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
143        convert from conservative to potential temperature. For now they are not
144        called anywhere.
145    o pkg/ggl90: make "useIDEMIX" useful
146      - re-organize code in s/r ggl90_calc a little to move computations that
147        are different for idemix into separate loops (changes verification
148        experiment idemix at truncation level, 12 digits remain -> updated)
149      - requires 2 new 2D fields KappaM, verticalShear
150      - make hFacI and recip_hFacI local 3D variables that are passed to
151        s/r ggl90_idemix
152      - fix and improve some comments
153    
154    checkpoint65j (2015/02/25)
155    o pkg/openad
156      - synchronize seawater.F with version in model/src: replace routine
157        body of sw_temp by calling sw_ptmp and fix/add a few comments.
158    o pkg/mnc:
159      - change default value of pickup_read/write_mnc params to FALSE
160        (since few features are missing in reading MNC pickup files).
161    o model/src:
162      - change default (background) vertical diffusivity for salt to be the
163        temperature (background) vertical diffusivity.
164      - change background vertical diffusivity in vertical mixing pkgs ggl90,
165        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
166        This makes ptracers default diffusivity (that uses salt diffKr) more
167        consistent with vertical mixing schemes.
168    o verification/testreport:
169      - fix typo in "-pcls" option ;
170      - put temp files in /tmp (instead of in local dir)
171      - add option "-ncad" to use genmake2 new option "-nocat4ad"
172      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
173    o pkg/ggl90 (idemix code):
174      - apply few fixes ; add some missing "_d 0" ; update output of exp.
175        global_ocean.90x40x15.idemix
176    o OpenAD
177      - enable active file I/O and begin removal of work-around code
178        for OpenAD for handling control variables (memory vs. active files)
179      - new CPP options file OPENAD_OPTIONS.h
180      - revert to genarr2d gradient check for hs94.1x64x5
181      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
182      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
183    o tools/genmake2:
184      - add option for an alternative Makefile (from Martin) where multiple
185        source files are sent to TAF (instead of all in one file).
186    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
187      - code provided by Carsten Eden as an extension of ggl90
188      - so far the code is turned on within ggl90 by setting a CPP-flag at
189        compile time; a runtime flag implementation is not yet complete
190      - tested in new verification experiment global_ocean.90x40x15.idemix
191    o verification:
192      - reduce length of the AD test run by half for experiments
193        global_ocean.cs32x15 (std + thsice) and isomip
194      - enable active file I/O for OpenAD, adjust verifications accordingly
195      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
196    o verification/testreport:
197      - fix two non-POSIX sed statements so that there are no error messages
198        on Mac OS X
199      - replace hostname -s with hostname | sed 's/\..*$//'
200    o model/src/seawater.F:
201      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
202        (following the matlab code), which would have avoided the bug caught
203        by Matt (see below) in the first place
204    o pkg/shelfice:
205      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
206        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
207      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
208        ice-shelf case (i.e., within surface level).
209      - add config summary in shelfice_check.F
210      - remove global variable recip_SHELFICElatentHeat and replace by a local
211        variable recip_latentHeat
212      - introduce diagnostics for friction velocity uStar (in case of
213        SHELFICEuseGammaFrict)
214      - change verification experiment isomip.htd:
215        + start from pickup (as input_ad at nIter0=8640)
216        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
217        + test SHELFICEuseGammaFrict = .TRUE.
218        + test SHELFICEadvDiffHeatFlux = .TRUE.
219    o model/src:
220      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
221        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
222        update output of experiments global_with_exf.yearly and isomip (all 6).
223    o pkg/shelfice:
224      - change setting of kTopC to also be zero where there is no ice-shelf.
225      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
226        ice-shelf is.
227      - first attempt to get RealFreshWaterFlux effects: for now, only without
228        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
229    o pkg/seaice: add the option to prescribe a fixed thickness PDF
230      for thermodynamic calculations
231      - because of divisions of the type 7/7 not exactly equal to 1, this change
232        affects results of some verification experiments by up to 4 digits:
233        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
234        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
235        adjoint: lab_sea, lab_sea.noseaicedyn
236        -> updated
237    
238    checkpoint65i (2015/01/23)
239    o model/src:
240      - change units of frictionHeating field from W to W/m^2
241      - fix bug in frictional heating from stratospheric drag in
242        S/R ATM_PHYS_TENDENCY_APPLY_V
243      - with synchronous time-stepping: move resetting to zero of frictionHeating
244        field from load_fields_driver.F to thermodynamics.F ;
245      - add diagnostics for frictional heating.
246    o model/src & gmredi K3D:
247      - add frictionHeating field to pickup-files (for synchronous time-stepping)
248      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
249      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
250        and name in pickup file).
251      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
252    o model/src:
253      - move (from ini_forcing.F) initialisation of all arrays in header file
254        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
255        (since Nov 2012) with option selectAddFluid=1.
256    o pkg/shelfice:
257      - change units (+ document) of newly added field "shelfIceMassDynTendency"
258      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
259    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
260    o pkg/seaice: two new runtime parameters:
261      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
262        long overdue
263      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
264        parameterization of tensil stress for fast ice (does not do anything yet)
265    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
266        for LSR: move checking overlaps out of JFNK-if-block
267    o pkg/atm_phys:
268      - move copy of grid and dynamical fields out of atm_phys_driver.F into
269        new S/R ATM_PHYS_DYN2PHYS.
270      - fix level height for Linear Free-Surf case (to be consistent with
271        fixed-in-time pressure levels).
272    o pkg/mom_common (bottomdrag):
273      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
274        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
275        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
276    o pkg/shelfice (u/v_drag):
277      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
278      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
279        (now similar to shelfice_u_drag.F)
280      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
281        from mom_vecinv.F (similar to mom_fluxform calls).
282    o pkg/mom_common (bottomdrag):
283      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
284      - add options for alternative discretisation of velocity norm in quadratic
285        bottom drag: averaging of grid-cell-center KE to U.point and V.point
286        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
287        improves when averaging only the other component (e.g. vVel for U bottom
288        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
289      - add options (bottomVisc_pCell) to account for partial-cell in bottom
290        friction (no-slip BC) thus getting the true distance from the bottom;
291        off by default since this also reduces model stability (explicit bottom
292        friction). Changes produce different machine truncation with linear-drag
293        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
294        front_relax (bvp & mxl, 10 & 11 digits).
295    o model/src & mom pkgs:
296      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
297        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
298      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
299        just copy level Nr value to level Nr+1.
300    o doc:
301      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
302    o pkg/streamice:
303      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
304        SHELFICE.h: move array shelficemass to init_varia, initialise
305        from array shelficemassinit, which is set in init_fixed and
306        has option to be set from file; introduce array
307        shelficeMassDynTend array, set thru file in init_fixed
308      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
309        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
310        pkg/streamice
311      - shelfice_thermodynamics.F: call shelfice_step_icemass if
312        SHELFICEMassStepping = .true.
313      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
314    
315    checkpoint65h (2014/12/17)
316    o verification/global_ocean.90x40x15, global_ocean_ebm:
317      - update to generic controls.
318    o pkg/ctrl:
319      - ctrl_map_ini_genarr.F: test for igen>0
320      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
321      - move gentim2d part of ctrl_map_ini_genarr.F to
322        new separate routine : ctrl_map_ini_gentim2d.F
323      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
324        add time variable weights and cyclic controls (time mean,
325        seasonal cycle, etc) capabilities to gentim2d
326    o pkg/ecco:
327      - move reading of error, conversion to weights from
328        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
329    o global_oce_llc90, cs32:
330      - activte sbo.
331      - CTRL_SIZE.h : add maxCtrlProc.
332      - activate the new genctrl capabilities.
333      - update following reorganization of global_oce_input_fields.tar.gz  
334    o pkg/ctrl/ctrl_ad_diff.list:
335      - add missing ctrl_init_rec.f
336    o tools/OAD_support/keepOriginal:
337      - add ctrl_init_rec.F
338    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
339      - avoid recomputations of xx_gentim2d_dummy.
340    o momentum diagnostics:
341      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
342        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
343    o pkg/seaice/seaice_lsr.F:
344      - fix computation of BU/BV, make sure they are non-zero, only necessary
345        for cubed sphere exchanges and SEAICE_OLx/y>0.
346        This makes calling s/r fill_cs_corner_rl obsolete (removed).
347    o verification/global_ocean.cs32x15/input.seaice
348      - add test for strong implicit coupling and restricted addtive Schwarz
349        methods for LSR
350      - update results/output.seaice.txt
351    o verification/tutorial_global_oce_biogeo:
352      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
353        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
354        update output_adm,_oadm,_tlm.txt
355    o pkg/dic:
356      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
357      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
358        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
359    o verification/tutorial_global_oce_biogeo:
360      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
361        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
362        update output_adm,_oadm,_tlm.txt
363    o eesupp/src:
364      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
365        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
366    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
367      LSR (following Hutchings et al. 2004)
368      - introduce zetaZ as a global variable (requires adjustments in
369        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
370        in seaice_calc_viscosities.F
371      - new flag SEAICEuseStrImpCpl (default off)
372      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
373        momentum equations
374      - JFNK-solver (preconditioner) adjusted to allow using this method
375        (where it does not have any positive effect)
376    o pkg/seaice
377      - add overlap for restrictive additive Schwartz method also to LSR, but
378        turn it off by default (because it only seems to work for non-cubed
379        sphere/llc topologies)
380    o pkg/autodiff
381      - add extra exchanges in addummy_in_steppging also for mnc output
382    o pkg/seaice:
383      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
384        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
385    o pkg/obcs:
386      - add option to specify domain-connected piece Id along OB though files
387        (for now, only used to diagnose PhiVel; default =1 -> global correction)
388      - modify obcs_diag_balance.F to process each connected-part separately;
389        exclude OB where Id = 0 but keep the full divergence there (-> constant
390        Psi along this portion of OB and all inflow derived from grad(Phi))
391      - add example of OB-conect files in verification/so_box_biogeo/input.
392    o pkg/diagnostics:
393      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
394      a) use non zero matrix element across OB and solve for Phi 1 grid point
395         outside OB (i.e, where tracer OBCS are applied).
396      b) global imbalance of inFlow/outFlow across OB: instead of modifying
397         velocity across OB, spread it uniformly along the OB in the RHS.
398    
399    checkpoint65g (2014/11/19)
400    o pkg/diagnostcis:
401      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
402    o pkg/my82,pp81,kl10:
403      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
404        field diffKr as background diffusivity to set minimum diffusivity value.
405    o pkg/seaice:
406      - add new parameter SEAICEuseEVPrev (for revisited EVP by
407        Bouillon et al 2013)
408      - add SEAICE_evpAlpha/Beta to namelist
409      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
410        involve trivial re-ordering of divisions/multiplications that should not
411        have any effects, but ... they do change the results of lab_sea.hb87 so
412        that only 2 digits of agreement remain, in line with the general
413        instability/fragility of the evp-code. For now, I do not care and just
414        update the verification experiment
415    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
416      - remove xx_genarr2d_numsmooth etc
417      - use xx_genarr2d_preproc etc instead
418      - carry out smooth_correl2D at initialization stage rather than during
419        time stepping.
420      - get smoothOpNb from xx_gentim2d_preproc
421    o global_oce_cs32 :
422      - add test of generic ecco capabilities.
423    o pkg/exf/exf_getsurfacefluxes.F :
424      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
425    o pkg/ctrl,ecco :
426      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
427        is defined.
428    o pkg/seaice: add diagnostics for Delta (deformation parameter)
429    o model/src:
430      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
431        diffusivity (background) is specified but ignored.
432    o verification:
433      - in testreport, convert hostname to lower case for default output dir name
434    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
435    o pkg/dic: add modifications from Hajoon:
436      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
437      - light attenuation: add self-shading effect by climatological Chlorophyll
438        (read from file).
439    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
440        compiles when SEAICE_ALLOW_DYNAMICS is undefined
441    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
442        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
443        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
444        approach where CPP_OPTIONS.h includes an omnipotent
445        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
446    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
447        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
448    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
449        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
450        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
451    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
452      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
453      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
454      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
455      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
456    o pkg/ctrl,ecco,exf :
457      - remove variables associated with NON-generic costs,
458        unless ECCO_CTRL_DEPRECATED is defined.
459      - remove NON-generic NON-obcs controls,
460        unless ECCO_CTRL_DEPRECATED is defined.
461    o pkg/ctrl : added ctrl_local_params.h
462    o pkg/ecco : added ecco_local_params.h
463    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
464        experiments, which will progressively be removed once the
465        experiments are revised to use only generic controls/costs.
466    
467    checkpoint65f (2014/10/13)
468    o pkg/ctrl, ecco, seaice : minor changes in headers
469    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
470        cost function and control capabilities added since checkpoint65c.
471    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
472    o pkg/ecco: increase modularity and improve logic
473      - ecco_toolbox.F (new) : basic operations that are often used,
474        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
475        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
476      - cost_gencal.F (new) : determine filnames and records.
477      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
478      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
479        and exploit the above functions leading to more compact code.
480      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
481      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
482        using_ers, using_gfo, using_mdt is now only defined within gencost)
483    o pkg/ecco: extend generic cost capabilities
484      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
485        capabilities via gencost_preproc (+ _c,_i,_r related params),
486        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
487        gencost_outputlevel arguments to cost_generic
488      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
489        and active_read, making room for gencost_preproc to take effect.
490        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
491      - pkg/ecco/cost_generic.F :
492        compute and store misfit maks*(model-data) in localdif that is
493        then used in cost and for output, output misfit if outlev.GT.0
494      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
495        rather gencost_barfile for deciding whether to write barfile
496      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
497      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
498        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
499      - pkg/ecco/ecco_summary.F : report gencost variables
500      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
501    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
502    o pkg/ecco: internal re-organization
503      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
504        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
505        mv relevant variables definition from ecco_cost.h to ecco.h,
506        make sure gencost routines only include ecco.h)
507      - throughout : add missing CCP switches, rm unused variables,
508        and rm un-necessary CPP switches
509      - throughout gencost routines : replace modelstartdate with
510        gencost_startdate when needed
511      - cost_bp_read.F : use arguments, instead of common blocs
512        so that it can be used also by (new) cost_gencost_bpv4.F
513      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
514      - ecco_phys.F : compute etanFull
515      - ecco_readparms.F : rename using_topex as using_tpj, add
516        bpv4-grace to gencost list, initialize added parameters
517      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
518    
519    checkpoint65e (2014/09/28)
520    o pkg/obcs:
521      - replaced the just-added CPP options with run-time variables
522        (see pkg/obcs/OBCS_PARAMS.h for details)
523    o pkg/obcs:
524      - add additional CPP options for sponge boundary layers
525        (see pkg/obcs/OBCS_OPTIONS.h for details)
526    o pkg/atm_phys:
527      - implement simple (obliquity only, assuming circular planet orbit)
528        seasonal cycle for incoming insolation ; used when run-time parameter
529        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
530    o pkg/exf, pkg/ecco, pkg/ctrl:
531      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
532      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
533      - implement gentim2d for xx_tauu, xx_tauv
534    o pkg/ctrl, pkg/ecco :
535      - fix and complement the generic controls implementation
536    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
537        pkg/shelfice/shelfice_thermodynamics.F,
538        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
539        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
540      - add weight in CTRL_GET_GEN calls
541    o pkg/ctrl :
542      - ctrl_get_gen.F : add weight as input parameter, and apply
543        it directly rather than using smooth_correl2Dw (to be retired).
544      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
545    o pkg/ctrl :
546      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
547        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
548      - re-activate ctrl_summary (call in ctrl_init.F)
549    o pkg/ctrl/ctrl_cost_gen.F :
550      - fix CCP brackets, remove un-necessary myiter, mytime
551    o pkg/ecco, pkg/ctrl :
552      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
553      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
554      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
555      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
556    
557    checkpoint65d (2014/09/15)
558    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
559      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
560        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
561    o pkg/ctrl/ctrl_map_ini_genarr.F :
562      - remove compilation failure
563      - replace hard coded example
564      - use ctrl_map_ini_gen2D, 3D
565    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
566      - on/off switch based upon xx_genarr2d_weight,3d
567    o src/packages_init_variables.F :
568      - regroup pkg/estimation calls
569      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
570        (moved to ctrl_init_variables)
571    o cost/cost_init_varia.F :
572      - remove ecco_cost_init_varia
573        (moved to ecco_init_varia)
574    o ctrl/ctrl_init_variables.F :
575      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
576      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
577    o ctrl/ctrl_map_ini.F :
578      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
579        (moved to ctrl_init_variables)
580    o ctrl/ctrl_map_ini_ecco.F :
581      - remove ECCO_PHYS (mv to ecco_init_varia)
582      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
583    o ecco/ecco_ad_diff.list :
584      - add ecco_init_varia.f
585    o ecco/ecco_init_varia.F
586      - new routine
587    o pkg/streamice:
588      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
589        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
590      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
591    o pkg/generic_advdiff:
592      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
593    o pkg/exf:
594      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
595         xxg_precip capability
596      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
597    o pkg/ctrl:
598      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
599    o model/src/load_fields_driver.F :
600      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
601        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
602    o OpenAD verification experiments:
603      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
604        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
605        for now, only in pkgs used in OpenAD verification experiments.
606      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
607        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
608        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
609        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
610    o OpenAD verification tests:
611      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
612      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
613        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
614      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
615        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
616    o model/src & generic_advdiff:
617      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
618        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
619        dynamics requires valid tracer forcing only over tile interior but, for
620        some diagnostics, may need to extend it over 1 point in tile halo region.
621      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
622        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
623        setting in temp/salt/ptracer_integrate.F
624    o pkg/dic:
625      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
626        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
627        in gchem_forcing_sep.F
628    o pkg/autodiff & obcs:
629      - add storage of current OB values for U & V (was already done for T & S).
630    
631    checkpoint65c (2014/08/30)
632    o pkg/dic:
633      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
634        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
635        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
636    o verification:
637      - new experiment testing OBCS and DIC pkgs, using params & output from
638        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
639        passage: take OBCS from the last year of a 2 yrs simulation and initial
640        conditions from t=1.yr while keeping the same forcing.
641    o model/src:
642      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
643        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
644    o pkg/diagnostics (Stats-Diags):
645      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
646        a) refine region where stats are computed, excluding where arrhFac=0 ;
647        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
648        c) extend regional stats over the region edges (for U or V pt location).
649    o pkg/gchem:
650      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
651        pkg/dic is currently changing/updating ptracers values beyond the OB).
652    o verification (hs94):
653      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
654        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
655        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
656        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
657    o pkg/ptracers:
658      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
659        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
660      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
661        with AB-2 code (so that it get tested).
662    o model/src:
663      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
664        with AB-2 code (previously only available with AB-3 code).
665        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
666        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
667        there, by calling CYCLE_AB_TRACER).
668    o pkg/generic_advdiff:
669      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
670        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
671        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
672        S/R temp/salt/ptracers_integrate.F
673    o model/src & pkg/ptracers:
674      - remove common block variables gT,gS (in DYNVARS.h), except when
675         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
676      - remove common block variable gPtr.
677    o model/src & pkgs:
678      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
679         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
680         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
681         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
682      + change accordingly all calling S/R.
683      - use local temperature/salinity/ptracer tendency array (without bi,bj)
684        in S/R temp/salt/ptracers_integrate.F
685    o pkg/seaice:
686      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
687        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
688      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
689        in seaice_lsr
690      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
691        in s/r seaice_lsr_calc_coeffs
692    o pkg/mdsio:
693      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
694        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
695        too long (e.g., > MAX_LEN_FNAM/2 )
696    
697    checkpoint65b (2014/08/12)
698    o pkg/matrix:
699      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
700    o model/src:
701      - fix initialisation of geothermalFile; compile geothermal-flux code in
702        natl_box verification experiment.
703    o model/src & pkg/down_slope:
704      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
705      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
706        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
707        results at machine truncation level: update output of experiments
708        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
709    o pkg/diagnostics (Stats-Diags):
710      - do not cumulate the full volume when DIAGNOSTICS_FILL is
711        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
712        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
713        times (but Min,Max and StD are still wrong).
714    o model/src:
715      - add geothermal flux forcing: read in ini_forcing.F as time-constant
716        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
717    o model/src:
718      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
719        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
720        arrays are already updated while adjustments (filters, conv.adjustment) are
721        still applied later, in S/R TRACERS_CORRECTION_STEP.
722    o model/src:
723      - store in common bloc array "rhoInSitu" the virtual potential temperature
724        anomaly that is used to compute geopotential: this make the atmos code
725        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
726    o pkg/seaice/seaice_lsr.F
727      - rename integer variable ilcall to ipass (that's what it is called
728        in the residual diagnostics
729      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
730        default) for improved non-linear convergence of the first few steps
731      - adjust a few comments and add new ones to explain some of the store
732        directives
733    o pkg/generic_advdiff (& ptracers):
734      - re-work the code to check for valid advection scheme and for minimum
735        size of overlap (now stored in local common bloc in gad_advscheme.F)
736    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
737      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
738      - add an auxilliary variable "bet" and fix store directives and keys in
739        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
740        less exact gradients in my tests); but there are still
741        recomputation warning (although gradients are sort of OK), when
742        SEAICE_LSR_VECTORIZE is not defined, so this flag and
743        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
744      - update verification experiments lab_sea.
745      - change some comments in S/R seaice_calc_viscosities
746    o model/src:
747      - if staggerTimeStep=T, always apply exchange to velocity field in
748        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
749        (independent of using multi-dim advection or not); no effect on FWD run
750        but affects AD results (at machine truncation level): update output of
751        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
752        and isomip (oad: 12.d).
753    o pkg/generic_advdiff:
754      - stop if doAB_onGtGs is set to FALSE but ignored
755      - refine warning related to stability of tracer time-stepping
756        regarding internal wave dynamics.
757      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
758        on staggerTimeStep & implicitIntGravWave (will now get a warning
759        if potentially unstable).
760    o pkg/kl10:
761      - add new pkg "kl10" for mixing due to internal wave breaking, from
762        http://www.sciencedirect.com/science/article/pii/S1463500310000144
763        (contribution from Jody Klymak), tested in verification experiment
764        verification/internal_wave/input.kl10/
765    o isomip experiment:
766      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
767        (input.htd) and update the output.
768    o cd_code experiments:
769      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
770        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
771        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
772        update the corresponding output.
773    o pkg/seaice:
774      - reduce the number of include files and store directives in
775        S/R seaice_lsr_tridiagu/v
776      - change the order of loops in one case in S/R seaice_lsr_tridiagv
777        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
778        get rid off one store directive (a TAF bug?)
779      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
780        S/R seaice_lsr_tridiagv to change the loop range for consistency
781      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
782      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
783        S/R seaice_lsr_tridiagu/v (requires update of
784        offline_exf_seaice/input.dyn_jfnk)
785    
786    checkpoint65a (2014/07/27)
787    o model/src:
788      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
789        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
790        (topo in p-coords, ice-shelf in z-coords); update output of experiments
791        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
792    o model/src:
793      - collect momentum forcing tendency into local 2-D array (passed as argument
794        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
795        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
796        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
797      - collect T & S forcing tendency into local 2-D array (passed as argument to
798        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
799        affects results at machine truncation level (e.g., ocean: if using
800        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
801        correction due to vertical advection).
802      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
803        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
804        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
805        obcs_ctrl (ad & fwd grd @ 12 & 7).
806    o pkg/ptracers & diagnostics:
807      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
808        title (to avoid some unexpected truncation); sort out ptracers diags units.
809      - collect ptracer forcing tendency into local 2-D array (passed as argument
810        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
811    
812    checkpoint65 (2014/07/18)
813    o pkg/fizhi:
814      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
815        affects results at machine truncation level. Update output of experiments
816        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
817    o pkg/seaice: more clean up
818      - rename TAF common block tapes to be more consistent and remove
819        unnecessary duplicates
820      - add store directives to remove more recomputations, but use smaller
821        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
822        The idea behind this flag is to reduce the memory footprint when the
823        adjoint of the LSR is not required. As of now, defining the flag
824        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
825        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
826        For experiment offline_exf_seaice, this means on a linux box with gfortran
827        nearly a factor of 10 (but keep in mind there is mostly seaice code in
828        this experiment):
829        > size mitgcmuv_ad
830        text    data        bss     dec        hex
831        5100659 1216  220458952  225560827  d71c8fb
832        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
833        but only a moderate increase of 36% for global_ocean.cs32x15:
834        text    data        bss     dec        hex
835        6695027 1648 1014578664 1021275339 3cdf6ccb
836        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
837      - note: there are still recomputations in global_ocean.cs32x15 and
838        offline_exf_seaice and the gradient agreement changes (gets a
839        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
840      - in general, the AD gradients still are wrong
841    o OpenAD
842      - clean up code_oad/ directories somewhat by moving files
843        dontCompile, dontTransform, keepOriginal to OAD_support/
844    o model/src:
845      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
846        (not currently tested): add dissipation terms before NLFS rescaling of
847        tendencies (previously done after).
848    o pkg/diagnostics:
849      - write stats-diags in ascii file with more digits (same as in monitor).
850    o pkg/down_slope:
851      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
852        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
853    o model/src:
854      - new file "apply_forcing.F" containing all the code previously in
855        external_forcing.F, but with new argument list: pass, as new argument,
856        the current level tendency array to update (instead of a direct update
857        of the common bloc array). Change the corresponding calls.
858      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
859        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
860    o pkg/seaice/seaice_lsr, a little bit of clean up
861      - rearrange some code blocks, so that now all calculations for
862        setting up the right-hand-sides done within one single block
863        (I find that easier to read and understand)
864      - rearrange freedrift-code to reduce the number of ifdefs
865      - adjust some indentations and comments
866    
867    checkpoint64z (2014/07/10)
868    o model/src and several pkgs:
869      - change argument list of all S/R called from external_forcing.F and
870        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
871        to pass, as argument, the current level tendency array to update
872        (instead of a direct update of the common bloc array).
873      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
874      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
875    o pkg/seaice/seaice_lsr.F
876      - always initialize local arrays in seaice_lsr_tridiagu/v
877      - add more local tapes to seaice_lsr_tridiagu/v
878      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
879        keep it in bi/bj loop; this seems to be essential
880      - gradients are still wrong but only by 4-7 orders of magnitude
881        instead of 15 orders of magnitude, lab_sea improves a little
882    o pkg/seaice
883      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
884        generates unnecessary code in seaice_lsr_ad
885      - add more store directives in seaice_lsr to avoid unnecessary code
886        in seaice_lsr_ad
887      - exclude some residual computations in seaice_lsr when
888        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
889        in seaice_lsr_ad
890      - add more storing, a new tape (model/src/the_main_loop.F) and
891        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
892        and klockey should be checked by a specialist)
893      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
894        and update lab_sea after previous changes in pkg/seaice below
895    o pkg/autodiff:
896      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
897        viscFacInAd : run time parameters allowing for adjoint switches
898        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
899    o pkg/ecco:
900      - introduce cost_gencost_boxmean.F that computes a box mean
901        temperature (for use in adjoint sensitivity studies).
902    o model/src/set_defaults.F : initialize viscFacAdj to 1.
903    o pkg/mom_common/mom_calc_visc.F:
904      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
905    o pkg/seaice/seaice_summary.F:
906      - statement for SEAICEadjMODE now in autodiff_readparms.F
907    o pkg/seaice:
908      - remove some store directives and add new ones in an effort to get
909        finally rid off the recomputation warnings. This is successful
910        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
911        defined (i.e. no extensive recomputation warnings left), but there
912        are still too many recomputations on the solver iteration level
913      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
914      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
915        SEAICE_SIZE.h
916      - add a store directive in S/R seaice_calc_viscosities
917    o pkg/seaice (ITD code):
918      - fix definition of Hlimit for multi-threaded case
919      - use double precision arithmetic to compute Hlimit: this affects results;
920        update output of experiment seaice_itd.
921    o replace content of verification/seaice_itd
922      - instead of a 1D column use the configuration of offline_exf_seaice
923        to test the ice thickness distribution code with ridging
924      - this is a first shot at this experiment
925      - change of some defaults of ridging parameters SEAICEhStar (from
926        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
927        and lot of new comments.
928    
929    checkpoint64y (2014/06/20)
930    o pkg/seaice/seaice_reg_ridge.F:
931      - modify the regularization of very small volumes of ice; only check
932        total volume HEFF, and do not apply correction to individual ice
933        classes because that leads to funny patterns in the heat and fw-fluxes
934        into the ocean. Adjust seaice_itd/results/output.txt
935      - replace nITD by SEAICE_multDim in loop-ranges
936    o pkg/exf:
937      - add code to process the case field period = -12. with UV interpolation.
938      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
939        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
940    o verification/global_with_exf:
941      - switch all fields period to -12. (was previously untested) in input/data.exf
942        (but keep secondary test ".yearly" unchanged); update the reference output.
943    o pkg/cal:
944      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
945    o pkg/exf:
946      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
947        to replace logical switch "exf_verbose"
948      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
949    o pkg/sbo:
950      - update from Katherine Quinn: evaluate mass directly from density and SSH
951        (budget using Finite Volume method) instead of from bottom pressure.
952      - allow testreport to collect few selected SBO output ; tested in exp.
953        global_ocean.90x40x15 (after updating the results, to include SBO output).
954      - fix some multi-threading issues (in output part).
955    o model/src & most packages:
956      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
957      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
958        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
959        "data.{pkg}" exist ; and leave the S/R (return) just after.
960      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
961        + call LAND_READPARMS from packages_readparms.F
962    o pkg/seaice:
963      - remove code that resets useThSice in S/R seaice_readparms and
964        replace it by a warning in S/R seaice_check
965      - remove parameter MULTDIM, replace with nITD and runtime
966        parameter SEAICE_multDim (still hard-wired to nITD if
967        SEAICE_ITD is defined)
968    
969    checkpoint64x (2014/05/24)
970    o verification/lab_sea:
971      - update adjoint and TLM output following changes to pkg/salt_plume
972      - un-do the update after putting back local recip_Cp in few places.
973    o pkg/salt_plume: modifications by An Nguyen:
974      - add capability to do brine rejection (salt-plume) as function of
975        volume+tracers (instead of only salinity tracer).
976      - conserve volume by exchanging volume from each kLev to above to
977        accommodate in-coming brine volume
978      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
979      - switch KPP surf buoyancy due to brine forcing to 3-d
980        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
981      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
982      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
983        in East/West Arctic.
984    o pkg/sbo:
985      - incorporate modifications from Katherine Quinn to enable the use of sbo
986        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
987        output for future testreport verification (unfinished).
988    o pkg/atm_phys:
989      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
990        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
991        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
992    o pkg/seaice
993      seaice_calc_ice_strength.F: modify expression to avoid divisions
994        (affects truncation)
995      seaice_do_ridging.F: clean up the insectarium
996      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
997      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
998      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
999      - add some debugging information and error messages (warnings)
1000    o model/src: modifications relatd to atmosphere p*:
1001      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1002      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1003        of vertical profile tRef in geopotential background and anomaly.
1004      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1005        and pkg/atm_phys.
1006      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1007        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1008    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1009    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1010        not used right now, but can be used in BGC packages to fix conservation.
1011    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1012        other packages too.
1013    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1014        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1015    o model/src:
1016      - since we have several heat capacity (even in model/src), define "recip_Cp"
1017        as local variable (no longer in common block) to avoid any confusion.
1018      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1019    o pkg/exf:
1020      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1021        air density as function of air Temp, Humidity and atm pressure.
1022    
1023    checkpoint64w (2014/05/02)
1024    o verification:
1025      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1026        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1027        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1028        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1029        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1030    o model/src: for atmosphere in p* coords:
1031      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1032      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1033        but not yet activated.
1034    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1035      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1036      - this changes the results (but not for any verification experiment, because
1037        none tests this), but avoids having an extra field in the restart files
1038    o pkg/seaice: remove global variable TICE (not needed)
1039      - replace by TICES or local variable where necessary (cost_seaice_test,
1040        seaice_diagnostics_state)
1041      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1042      - use specific read/write routines for reading and writing individual leves
1043        of a multilevel field
1044    o pkg/ctrl & model/inc:
1045      - move additional anomaly fields of control vars (related to options:
1046         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1047        from DYNVARS.h into new header file: CTRL_FIELDS.h
1048    o pkg/seaice: some small modifications to the ridging code
1049      - make fw2ObyRidge a global variable and add the freshwater flux to
1050        seaice_growth
1051      - pass actual thickness from seaice_prepare_ridging, so that it is
1052        computed only in one place and compute it in the same way as in
1053        seaice_growth
1054      - initialise more fields in seaice_do_ridging that where cause floating
1055        point exceptions over land
1056    o pkg/seaice: preparations for ridging code and first real ridging code
1057      - move most of "PART 1" of S/R seaice_growth into a new and separate
1058        S/R seaice_reg_ridge that will both regularize the state variable after
1059        advection call the actual ridging routine;
1060      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1061        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1062      - remove ridging code from seaice_advdiff
1063      - clean up remaining part 1 of seaice_growth in an attempt to make it
1064        more readable (this is probably subjective)
1065      - call seaice_itd_redist once in the initialisation phase to have the initial
1066        conditions in the correct category
1067      - finally: add new ridging routine for ITD code
1068    
1069    checkpoint64v (2014/04/11)
1070    o pkg/ecco:
1071      - add runtime parameters mdt[start,end]date[1,2]
1072      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1073    o pkg/seaice:
1074      - make deltaC a global variable, so that it can be used in ridging code
1075      - first step towards ridging: introduce new routines that compute
1076        ice strength based on ridging parameters
1077      - add diagnostic for HSNOWITD
1078      - add opnWtrFrac as a global variable (required for ridging scheme)
1079    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1080      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1081        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1082    o verification/hs94.1x64x5:
1083      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1084      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1085    o autodiff:
1086      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1087        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1088        For now, only in pkgs used in verification/hs94.1x64x5.
1089      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1090        which are specific to TAF/TAMC).
1091      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1092        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1093        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1094      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1095        building mitgcmuv_ad (make adAll).
1096    o pkg/ecco:
1097      - cost_gencost_seaicev4.F:
1098         reformulate proxy cost as function of sst and local param SEAICE_freeze
1099         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1100      - add stop statement if old names siv4-[sst,vol] are used
1101      - add snapshots + cost reports for atmospheric longwave
1102      - remove factor 0.1 in front of wtau[u,v]
1103      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1104         ALLOW_TMI_SST_COST_CONTRIBUTION
1105    o pkg/atm_phys:
1106      - add some diagnostics for Short-wave and for convection S/R.
1107    o pkg/seaice/seaice_growth:
1108      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1109        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1110      - rearrange loop order for better vector code in the same code block
1111      - rewrite the floeDiameter formula to have fewer divisions
1112      -  (miraculously) none of this changes the results of seaice_itd
1113    o pkg/smooth:
1114      - move param smooth2Ddiffnbt to pkg/ecco
1115    o pkg/salt_plume:
1116      - salt_plume_frac.F:
1117         clean up local param names
1118         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1119    o pkg/rw:
1120      - add RS version of S/R READ_MFLDS_LEV.
1121    o pkg/streamice:
1122      - fix the restart test by writing/reading pickup_streamice files.
1123    o pkg/seaice:
1124      - refine checks for jfnk-related parameters
1125      - comment out if statement with SEAICEuseIMEX parameter as long as there
1126        is no IMEX code to avoid confusion and surprises
1127    
1128    checkpoint64u (2014/03/07)
1129    o verification/MLAdjust:
1130      - rename secondary test suffix:
1131         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1132         0.leithD -> AhFlxF  + switch to flux-form
1133         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1134         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1135    o pkg/mom_vecinv:
1136      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1137        to be before mom_calc_visc.F)
1138      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1139      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1140        this is simpler for the adjoint and for diagnostics.
1141    o model/src + pkg/momentum:
1142      - add input files for  2-D additional Western and Southern cell-edge wall
1143         (e.g., to add "thin-wall" where it is =1).
1144      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1145        using 2nd hFacZ that is computed from initial (fix domain) hFac
1146      - known limitations of thin wall implementation: not yet coded for sigma
1147        coords; not working with CD-scheme neither.
1148    o pkg/seaice:
1149      - rename recently introduced parameters from (wrong name) AB to
1150        BDF (backward difference time discretisation)
1151      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1152    o tools/adjoint_options:
1153      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1154    
1155    checkpoint64t (2014/02/01)
1156    o pkg/ecco
1157      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1158        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1159      - replace hard-coded record number and period which only work for monthly
1160        with read-in runtime param that works for other periods (month,day,year)
1161    o pkg/thsice
1162      - corrected store directive fixes thsice adjoint gradient checks
1163    o genmake2 & testreport:
1164      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1165        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1166        Update testreport accordingly. No need to set "export OPENAD=true"
1167        in adjoint_options/adjoint_oad anymore (will be removed later).
1168    o pkg/shelfice:
1169      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1170        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1171        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1172    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1173      - Changes to make GENARR more modular (i.e. invisible if not used)
1174    o model/src/temp_integrate.F and salt_integrate.F
1175      - re-include store directives that were removed on Dec 27th.
1176    o model/src/external_forcing_surf.F
1177      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1178        seaice_model in the adjoint that is problematic when seaice_model is
1179        turned off in the adjoint. The resolved issue dated back to July when
1180        EXTERNAL_FORCING_SURF call was moved.
1181        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1182    o pkg/exf/exf_check.F
1183      - fix a small bug again (originally found by Wentao Liu, now found again)
1184      - streamline error output
1185    o pkg/streamice and aim_v23:
1186      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1187        Apple's /usr/bin/cpp knows what to do:
1188        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1189        Target: x86_64-apple-darwin13.0.0
1190    
1191    checkpoint64s (2014/01/05)
1192    o tools/adjoint_options:
1193      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1194        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1195    o model/src:
1196      - remove some unnecessary TAF storage directives in forward_step.F and
1197        in dynamics.F (note: not always removed by TAF, e.g., double storage
1198        of kappaRU,kappaRV in former version of dynamics.F).
1199    o model/src & pkg/ptracers:
1200      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1201        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1202        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1203      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1204      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1205      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1206    o useSingleCpuInput separates single-CPU input from single-CPU output;
1207        for now only implemented for in exf_interp_read.F
1208    o verification/advect_xy:
1209      - fix missing EXCH call in local version of ini_salt.F and update output.
1210    o momentum diagnostics:
1211      - fix which deltaT is used in Total-Tendency diagnostics.
1212      - fix typo in diagnostics for momentum tendency from AB.
1213    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1214        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1215    
1216    checkpoint64r (2013/12/08)
1217    o verification/*/results:
1218      - Update reference output of experiments that were passing with just 13 digits
1219         (make it easier to detect future changes in results)
1220    o model/src & pkg/ptracers:
1221      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1222        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1223        to inside ptracers_integrate.F ; remove ptracers_advection.F
1224    o coupling interface pkgs:
1225        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1226      - change the config check to test the agreement of Ocean Depth
1227        with ATM land/sea mask (instead of ATM orography);
1228      - send to coupler the number of coupler time-steps to do for this run:
1229        this allows to check for consistency and don't need anymore to be
1230        specified in parameter file "data";
1231      in coupler:
1232      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1233      - improve report to log-file of config setting (pass log-file unit to few S/R)
1234    o pkg/compon_communic:
1235      - add coupling send/receive for non-tiled integer vector;
1236      - add S/R to check and stop if any proc has an error (similar to
1237        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1238    o pkg/exch2:
1239      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1240        through list of all tiles my proc owns.
1241    o model/src:
1242      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1243        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1244        calling S/R); this affects AD results at machine truncation level:
1245        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1246        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1247    o tools/build_options:
1248      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1249    o coupling interface pkgs:
1250        [compon_communic, atm_compon_interf & ocn_compon_interf]
1251      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1252        to each S/R that needs it; remove un-used variables.
1253      - change component tile registration (cpl_register.F in both compon_interf
1254        and mitcomponent_tile_register.F) to pass the full list of tiles
1255        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1256      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1257        towards coupler global array (unless W2_useE2ioLayOut=F):
1258         a) can now use different tiling between atm & ocn comp.
1259         b) no needs to modify the run-Off map when changing tiling (was needed
1260            even if using the same tiling between atm & ocn).
1261         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1262            full land tiles); not yet tested.
1263      - check for valid mapping from comp. tile to coupler global array
1264      - improve report of tile registration results to log file.
1265    o pkg/exch2:
1266      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1267        tile-registration (CPL_REGISTER);
1268      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1269        store the local bi,bj indices of each tile;
1270      - also print bi,bj in local report to log file;
1271      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1272        Jun 2009 modif of pkg/exch2).
1273    o testing on baudelaire:
1274      - run 2 tests at a time: no significant slow down (since enough cpu) and
1275        get the full set of test done earlier
1276      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1277    o model/src/thermodynamics.F and routines called from it:
1278      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1279        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1280        velocity (outp) by adding bolus velocity.
1281      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1282        mass transport from velocity + lateral grid cell area
1283      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1284      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1285     in thermodynamics.F
1286      - remove k from thermodynamics.F and move it to temp_integrate.F
1287        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1288        loop).
1289      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1290        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1291        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1292        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1293      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1294        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1295        tutorial_tracer_adjsens (+ TLM output).
1296    o tools/OAD_support and (verification/*/) code_oad:
1297      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1298        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1299      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1300        version (closer to model/inc/CPP_OPTIONS.h).
1301    o model/src:
1302      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1303        retired list of parameters (routine FREEZE has been replace by surface
1304        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1305    o pkg/gmredi:
1306      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1307        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1308      - update output of FWD experiments: front_relax.bvp,
1309        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1310    
1311    checkpoint64q (2013/11/17)
1312    o verification:
1313      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1314        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1315      - generate new output (growth & melt) for seaice_itd experiment after
1316        updating the input pickup_seaice files (previously wrong).
1317    o pkg/cost:
1318      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1319        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1320        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1321          cannot be applied to var in common block).
1322        o allows to get results independent of tile-per-proc setting (if using
1323          slower GLOBAL_SUM_SEND_RECV option).
1324      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1325        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1326        forward gradients: update output).
1327      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1328        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1329    o pkg/mom_common:
1330      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1331        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1332        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1333        ensure that all field value that are used are set.
1334    o tutorial_deep_convection (smag3d):
1335      - add missing scaling in mom_calc_smag_3d.F;
1336      - set smag3D_coeff in input.smag3d such that results do not change.
1337    o pkg/dic:
1338      - change dic_cost.F to compute cost on each tile first and then apply
1339        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1340        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1341      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1342    o eesupp/src & pkg/mdsio:
1343      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1344        (from pkg/mdsio) since they are no longer used for tape IO.
1345      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1346        (+ keep a copy in pkg/atm_ocn_coupler).
1347    o verification/isomip:
1348      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1349    o tools/build_options:
1350      - optfile linux_amd64_ifort11, fast (no ieee) case:
1351        to get a working restart for all experiments, add "-fp-model source"
1352        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1353    
1354    checkpoint64p (2013/10/20)
1355    o pkg/autodiff:
1356      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1357        criteria, return to simple (default) tape IO format.
1358    o pkg/mdsio (+ eesupp/src):
1359      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1360        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1361      - fix globalFile and singleCpuIO options using simpler global mapping.
1362      - new pairs of scatter/gather vector S/R (one for each type, generated from
1363        template) corresponding to simpler global mapping.
1364      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1365        to globalFile when parameter globalFiles is set to True.
1366      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1367    o pkg/autodiff:
1368      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1369        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1370        missing, just add a STOP if array type do not match.
1371    o pkg/exf:
1372      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
1373         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
1374         and rename array obsSIce to exf_iceFraction.
1375    o tutorial_deep_convection:
1376      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
1377        for now all in this exp. code dir.
1378      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
1379        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
1380    o eesupp/src:
1381      - added SINGLE_DISK_IO option because reading of parameter files on
1382        very large number of processors did not work with existing set-up
1383    
1384    checkpoint64o (2013/09/25)
1385    o pkg/atm_phys & atm_compon_interf:
1386      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
1387    o tools/build_options:
1388      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
1389        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
1390        remove CPP setting (was identical to genmake2 default).
1391    o pkg/gmredi & model/src: Some updating and work done on the residual model.
1392      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
1393      - fixed up the calculation of the eddy stress and how it is added to the
1394        external forcing via taueddy_external_forcing.F
1395      - at the moment, it is very experimental and only works with the variable eddy
1396        diffusivity calculated in gmredi_k3d.F
1397    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
1398        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
1399    o testreport (& tools/do_tst_2+2):
1400      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
1401    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
1402      - remove CPP='cpp -traditional -P' (this is genmake2 default)
1403      - add switch (for big setups) to use 'medium' memory-model (but leave it
1404        commented out for now). Note: needed with FC 19 to compile big setups.
1405    o pkg/atm_compon_interf:
1406      - regroup per field origin (model & pkgs) the coupling storage routines
1407         (which accumalate in time each coupling field)
1408      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
1409        update accordingly + simplify aim_do_physics.F
1410    
1411    checkpoint64n (2013/08/26)
1412    o pkg/bbl:
1413      - update formulation to reduce dispersion of tracer properties in bbl
1414      - replaced horizontal and vertical transport parameters with velocities
1415      - changes results for verification/global_with_exf.yearly
1416    o verification/halfpipe_streamice:
1417      - change to matrix construction; update both Fwd & AD output.
1418    o verification/tutorial_tracer_adjsens:
1419      - OpenAD test: switch to vector-invariant momentum since fluxform with
1420        rStar causes problems with OpenAD; update output.
1421    o tools:
1422      - genmake2: define a common prefix for all temp-file names ; move them
1423        to local /tmp disk (but would be easy to move them back);
1424      - xmakedepend: apply the same switch for temp-files.
1425    o pkg/offline:
1426      - changes for use with rStar (NLFS): assume that we continue to provide
1427        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
1428        output files) and apply r* scaling at each time-step (function of the time
1429        varying Eta field); use normal pickup files (needed for restart with NLFS).
1430    o adjoint with OpenAD:
1431      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
1432        package openad.  This package has to be compiled for all runs with OpenAD
1433        instead of specifying code_oad_all as a modification directory.
1434      - link the fortran templates from tools/OAD_support to the build directory
1435        for preprocessing to avoid conflicts between different setups compiled
1436        simultaneously and simplify cleanup.
1437    o pkg/exf:
1438      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
1439        main model or other pkgs are exchanged in EXF_MAPFIELDS).
1440    o model/src:
1441      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
1442        (similar to do_fields_blocking_exchanges.F).
1443    o tools/genmake2:
1444      - remove TAF output src code just before calling staf (when not doing a fresh
1445        built, will stop if things go wrong with staf).
1446      - fix target "adobj" (left from TAF version-2 transition)
1447    o pkg/diagnostics:
1448      - add a parameter to track the status of pkg/diagnostics activation;
1449        this replace/extend the use of logical param "settingDiags" (to check
1450        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
1451        New S/R to print error message and stop when pkgStatus is not right.
1452      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
1453    
1454    checkpoint64m (2013/08/13)
1455    o model/inc:
1456      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
1457        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
1458    o pkg/kpp & aim_v23:
1459      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1460    o pkg/seaice:
1461      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
1462        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
1463      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
1464    o eesupp/src:
1465      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
1466        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
1467    o switch to TAF version-2:
1468      - add flow directives to "freeze" naming convention for ad-routines that
1469        are used in I/O routines of adjoint state and associated common blocks
1470        that are used in adcommon.h (backward compatible with version-1)
1471      - update all ad-optfiles (in tools/adjoint_options + few local to some
1472        verification exp) to switch to latest TAF version (currently 2.5.5);
1473        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
1474        out except for diva).
1475      - the major change with TAF version-2 is that both the differentiated
1476        routines and the forward routines (new) are returned as part of the TAF
1477        output source code. Update genmake2 accordingly.
1478      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
1479        with version-2 when compared to TLM or FWD gradient); other experiments
1480        output show minor changes (machine truncation level); update the few AD &
1481        TLM output with 12 matching digits only (some prior to version-2 switch).
1482    
1483    checkpoint64l (2013/08/05)
1484    o model/src:
1485      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
1486      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
1487        when using TAF but only if using OpenAD.
1488    o pkg/mom_common+fluxform+vecinv:
1489      - always set horiz. viscosity arrays to background value before calling
1490        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
1491        only when using variable horiz. viscosity (useVariableVisc=T);
1492      - simplify mom_vecinv.F (only 1 block for momViscosity).
1493    o pkg/mom_common: variable horiz. viscosity in NH code
1494      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
1495        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
1496      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
1497        useBiharmonicVisc & useVariableVisc.
1498      - fix old bug (already in 1rst implementation of variable horizontal viscosity
1499        in calc_gw.F, version 1.27, 2006/06/20):
1500        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
1501        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
1502      - change background horiz viscosity in vertical momentum (gW) to always be
1503        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
1504        any type of variable viscosity, e.g., viscAh/4Grid)
1505      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
1506        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
1507        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
1508        default viscAh,viscA4 is zero).
1509    o model/src:
1510      - extend length of drC & recip_drC from Nr to Nr+1.
1511    o Divided Adjoint (DIVA) with MPI:
1512      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
1513      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
1514        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
1515    
1516    checkpoint64k (2013/07/23)
1517    o tools/OAD_support:
1518      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
1519        and remove it from genmake2.
1520    o tools/build_options:
1521      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
1522        MPI_HEADER_FILES list (let genmake2 find the missing headers)
1523    o verification/halfpipe_streamice:
1524      - change to driving stress formulation; update both Fwd & AD output.
1525    o tools/genmake2 and Divided Adjoint with MPI:
1526      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
1527      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
1528      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
1529        Makefile, which is set by genmake2, and check which mpi-headers are needed.
1530        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
1531      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
1532    o testreport:
1533      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
1534        perform additional runs (number of additional runs is "add_DIVA_runs" taken
1535        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
1536    o verification/lab_sea (AD test):
1537      - change to test Divided Adjoint Run in this set-up (both standard AD test
1538        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
1539    o pkg atm_ & ocn_compon_interf:
1540      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
1541        staggerTimeStep implementation) and disable (retired) corresponding
1542        parameter.
1543    o pkg/offline:
1544      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
1545      - add S/R OFFLINE_CHECK to print offline parameter summary
1546        and stop if loading a file that is not used;
1547      - enable to calculate GMRedi tensor, KPP mixing and convective index
1548        when the corresponding file(s) is/are not specified (but pkg is used).
1549      - comment out resetting of monitorFreq (to endTime) since it still useful
1550        for monitoring CFL numbers and checking offline fields.
1551    o OpenAD:
1552      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
1553        smaller standard output) and generate new (smaller) output (on baudelaire
1554        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
1555    o model/src:
1556      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
1557        (where external_forcing_adjust was called) and change list of arguments;
1558      - merge external_forcing_adjust.F into external_forcing_surf.F
1559      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
1560        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
1561        previously in file "balance_relax.F", now removed); remove corresponding
1562        arrays in FFIELDS.h.
1563      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
1564        a hack for getting back surfaceForcingS (loaded from file) when using
1565        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
1566      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
1567        (was getting only 11 digits for AD-grad, due to different truncation
1568         error in AD code).
1569    
1570    checkpoint64j (2013/07/04)
1571    o pkg/offline:
1572      - to enable the use of other features with pkg offline (e.g., obcs),
1573        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
1574      - comment out "allowFreezing" (now active) in 2 offline testing exp.
1575    o pkg/exf ALLOW_RUNOFTEMP
1576      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
1577      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
1578      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
1579    o pkg/atm_phys:
1580      - allows to add some damping on uVel,vVel (strength only function of k).
1581    o verification, ad-tests:
1582      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
1583        global_ocean_ebm and offline_exf_seaice.thsice.
1584    o verification/halfpipe_streamice:
1585      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
1586        flux input boundary conditions to be ignored; a fix for this bug changed
1587        verification results for forward test.
1588      - add adjoint test.
1589    o pkg/ptracers:
1590      - allow to restart without SOM pickup (resetting SOM to zero).
1591    o pkg/gmredi:
1592      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
1593      - It uses mixing length theory and suppression by steering level effects to
1594        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
1595        to JPO, for more details).
1596      - It also uses the diffusivity to calculate an eddy induced streamfunction
1597        based on a PV closure (rather than a buoyancy closure as in GM).
1598      - New files added to pkg/gmredi:
1599        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
1600          induced overturning streamfunction (called from gmredi_calc_tensor)
1601        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
1602          for use in gmredi_k3d
1603        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
1604          the eddy diffusivity
1605    
1606    checkpoint64i (2013/06/18)
1607    o pkg/cheapaml:
1608      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
1609        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
1610        with pkg/cheapaml.
1611    o utils/python: add subpackage for cubed sphere function, first example is
1612        simple cs.pcol to plot 2D fields on a map
1613    o pkg/streamice:
1614      - This is a new package in MITgcm, which solves dynamic equations for ice
1615         sheets and ice streams
1616      - At the moment it is independent of atmosphere/ocean dynamics, or any
1617        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
1618        ed that this will change)
1619      - There is a new verification exercise that tests it, halfpipe_streamice,
1620        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
1621        rectangular embayment
1622      - halfpipe_streamice is forward-only for now, will have TAF test soon
1623      - for questions, email dgoldber@mit.edu
1624    o pkg/thsice:
1625      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
1626        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
1627      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
1628         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
1629      - allow precip from pkg/cheapaml to make snow over seaice.
1630    o pkg/cfc:
1631      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
1632      - remove atmos CFC 2-D arrays from common bloc (now local variables)
1633      - change some hard-coded constant to run time parameter for reading and
1634        and interpolating atmospheric CFC ; keep same default as previously.
1635      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
1636      - put arguments in standard order: myTime, myIter, myThid
1637      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
1638        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
1639      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
1640      - new routine to print summary of CFC params and check for consistency.
1641    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
1642      similar to thsice_advdiff.
1643      Note that for the B-grid case the routine parameters uc/vc are overwritten.
1644    o pkg/cfc:
1645      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
1646        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
1647      - fix interpolation of atmphspheric CFC between Sorthern and Northern
1648        hemisphere value.
1649    o pkg/seaice:
1650      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
1651    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
1652                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
1653      - requires an additional time level that is stored in the pickup
1654      - you can start with AB2 from a pickup without this time level with
1655        pickupStrictlyMatch = .false.
1656    
1657    checkpoint64h (2013/05/26)
1658    o pkg/cheapaml:
1659      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
1660        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
1661      - consistent treatment of uWind,vWind location: assume everywhere in
1662        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
1663        (Note: was already the case for Tair,Qair advection);
1664        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
1665      - compute diabatic forcing only in the interior (excluding overlap regions)
1666      - fill in array "Qsw" (for short-wave heating);
1667      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
1668        before any update (consistent with MITgcm state var diagnostics);
1669      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
1670        non periodic ; + adjusted for uWind,vWind (C-grid).
1671    o pkg/seaice:
1672      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
1673        add explicitly pkg/exf in experiments that currently use pkg/seaice.
1674      - allows to compile pkg/seaice without pkg/exf.
1675    o tools/OAD_support:
1676      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
1677        of array "ourStepOf" in function rvNextAction (revolve.F90).
1678    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
1679      - change pkg name (to be used with other atmospheric physics pkg)
1680        but by-pass CVS when making the new pkg so that we keep the CVS history.
1681    o pkg/offline:
1682      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
1683        (previously called from pkg/dic_surfforcing_init.F)
1684    o model/src:
1685      - re-order sequence of calls within packages_init_variables.F, using
1686        standard order, except for:
1687         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
1688         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
1689    o new pkg: atm_phys
1690      - add entry point and source code (previously in contrib
1691          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
1692        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
1693      - re-order sequence of calls within packages_readparms.F,
1694         packages_init_fixed.F and packages_write_pickup.F
1695        (but skip packages_init_variables.F because of TAF issues).
1696      - update contrib/*/atm_gray/ experiment.
1697    o pkg/seaice (ITD code):
1698      - simplify and fix the writing of pickup-files for ITD case
1699    o pkg/seaice (ITD code):
1700      - introduce floe size dependent lateral melt for ITD case;
1701      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
1702      - update seaice_itd experiment main output.
1703    o pkg/thsice:
1704      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
1705        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
1706        changed accordingly pkg/atm2d.
1707    
1708    checkpoint64g (2013/05/01)
1709    o pkg/exf ALLOW_RUNOFTEMP
1710      - if defined,  river and glacier runoff temperature can be read-in from
1711        runoftempfile; runoftempfile needs to have same format as runofffile
1712    o pkg/thsice (& pkg/bulk_force):
1713      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1714        for energy content of Precip + RunOff & Evap (like with pkg/exf).
1715      - change computation domain to always be the interior (without overlap).
1716      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
1717    o verification/tutorial_global_oce_biogeo:
1718      - add preliminary OpenAD setup (still has problems)
1719    o pkg/seaice:
1720      - turn some parameters for choosing the convergence criterion of
1721        the inexact Newton method (JFNK) into runtime parameters for convenience
1722      - clean up seaice_calc_viscosities.F: remove/retire two options for
1723        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
1724        the results of lab_sea/input because a division has been replaced by
1725        a multiplication with the reciprocal (sumNorm)
1726      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
1727        convergence of solver (changes results, of course), and to test some
1728        new features
1729    o model/src:
1730      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
1731      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
1732      - move forcing adjustment (balancing surface forcing) in specific S/R
1733        where might also be applied exchanges (if needed) to forcing arrays.
1734    o pkg/shelfice:
1735      - allow to specify the Ice-Shelf mass per unit area (instead of
1736        shelficeLoadAnomaly) and do the conversion from one to the other
1737      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
1738        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
1739        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
1740        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
1741      - update isomip experiment forward output (get machine truncation error
1742        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
1743    o verification/offline_exf_seaice:
1744      revise data.seaice in input.thermo and input_ad and update results accordingly
1745        HO = 0.2, SEAICE_areaLossFormula = 2,
1746        SEAICE_growMeltByConv = .TRUE.,
1747        SEAICE_doOpenWaterMelt = .TRUE.,
1748      Improve consistency with input.thsice and fix the spurious 500m ice corners
1749    o verification/global_ocean.cs32x15:
1750      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
1751        in icedyn (thsice+seaice-dyn) test and update output.
1752    o verification/offline_exf_seaice:
1753      - adjust list of tested variables (with testreport) and update
1754        standard test output with better slection of monitored fields.
1755    o pkg/cd_code:
1756      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
1757        experiment lab_sea.hb87
1758    o tools/genmake2:
1759      - change default makedepend from the system default to tools/xmakedepend:
1760        When no makedepend is specified, select tools/xmakedepend it the test pass,
1761        otherwise select the system default (if exist and pass the test) or
1762        try to build cyrus-makedepend ; stop if none of the 3 works.
1763    o pkg/exf & pkg/thsice:
1764      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
1765        for energy content of Precip + RunOff & Evap. Assumes:
1766       1) Rain has same temp as Air.
1767       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
1768       3) Run-Off comes at the temp of surface water (with same Cp)
1769       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
1770        put directly into Latent Heat flux & should use water-vapor heat capacity.
1771       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
1772        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
1773    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
1774        (compile when SEAICE_ALLOW_JFNK is defined)
1775    o pkg/thsice:
1776      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
1777        implementation): move THSICE_AVE call after the advection (called directly
1778        from thsice_do_advect.F).
1779    o verification/global_ocean.90x40x15 and OpenAD:
1780      New experiment for OpenAD is identical to the one in input_ad except that
1781        multiDimAdvection=.FALSE.,
1782      There is still an issue with this.
1783    o pkg/thsice:
1784      - account for ice velocity (ocean relative velocity) in turbulent heat flux
1785        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
1786        and offline_exf_seaice (main test).
1787    
1788    checkpoint64f (2013/03/31)
1789    o verification/OpenAD:
1790      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
1791    o verification/isomip, pkg/shelfice and OpenAD:
1792      - add OpenAD setup to this exp and make shelfice package work with OpenAD
1793    o verification/tutorial_global_oce_biogeo:
1794      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
1795    o verification/offline_exf_seaice:
1796      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
1797    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
1798      - add OpenAD setup to this exp and make ptracers package work with OpenAD
1799    o pkg/seaice/seaice_evp.F:
1800       mask the asymmetric contribution of the ice-ocean stress (when
1801       the turningAngle is non-zero) over open water to avoid stripes
1802       in the EVP-solutions after many EVP-substeps. This does not change
1803       the verification experiment (because turningAngle=0 in that experiment),
1804       but will affect other EVP solutions with turningAngle.ne.0
1805    o verification, AD & TLM output:
1806      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
1807        additions and multiplications which affect results at machine truncation
1808        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
1809        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
1810        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
1811        digits of matching.
1812    o pkg/seaice:
1813       modify lsr-algorithm so that it vectorizes AND converges by using a
1814       "zebra" method: split vector loop into two with step size 2; this
1815       solves a general convergence problem for the JFNK solver on a vector
1816       computer. It has the potential to even improve convergence for
1817       non-vector machines, but it does change the results so it is turned
1818       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
1819       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
1820    
1821    checkpoint64e (2013/03/05)
1822    o pkg/ecco and several verification experiments:
1823       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
1824       from ecco package, and revert to unified routine in model/src/
1825       Adjust verification experiments accordingly, especially gloal_oce_llc90
1826       Should conclude long-standing work by Gael to reconsile the_main_loop with
1827       ECCO and will enable OpenAD's revolve loop in ECCO setup.
1828    o pkg/generic_advdiff:
1829      - implement compressible flow method for multi-dim advection (similar to
1830        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
1831        TAF generates many recomputations) to use it; no yet coded with implicit
1832        vertical advection.
1833      - change experiment advect_cs (new output) and advect_xy (same output)
1834        to test compressible flow multi-dim advection.
1835    o pkg/generic_advdiff:
1836      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
1837        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
1838    o pkg/seaice:
1839      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
1840        bug affects two verification experiments (lab_sea and lab_sea.hb87),
1841        recover old (wrong) results by setting noSlipFac = 2. in
1842        seaice_calc_strainrates.F;
1843      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
1844      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
1845        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
1846      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
1847    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
1848      - new subroutines seaice_lsr_tridiagu/v
1849      - introduce loop bounds i/jmin/max to be able to use a restricted
1850        additive Schwarz method, but not used for now.
1851      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
1852      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
1853    o OpenAD support
1854       Reorganize S/R call for overall time-stepping loop to facilitate
1855       OpenAD revolve loop replacement
1856       (new S/R main_do_loop.F)
1857    o model/src:
1858      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
1859      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
1860        ADAMS_BASHFORTH2.
1861    o pkg/cheapaml:
1862      - add new parameter (default=F, same as before) to disable full domain
1863        (including land) periodicity in X & Y dir.
1864      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
1865        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
1866        into single S/R CHEAPAML_TIMESTEP.
1867    
1868    checkpoint64d (2013/02/17)
1869    o pkg/monitor (angular momentum):
1870      - do not add Eta contribution to the total AM if using rigid-lid;
1871      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
1872      - horizontal discretisation: compute Zonal wind contribution separately for
1873        each component (instead of from cell centered averaged) and use the 4
1874        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1875      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1876        FreeSurf) if using vectorInvariant momentum.
1877    o model/src (horizontal grid):
1878      - move initialisation of all horizontal grid arrays to null value
1879        from specific horizontal grid S/R to main S/R INI_GRID;
1880      - add 2 new arrays to project model C-grid velocity on to zonal direction
1881        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1882        compute them in S/R CALC_GRID_ANGLES.
1883    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1884        SEAICE_JFNK_tolIter
1885    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1886        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1887        i.e OLx/y-2, but overwrite the solution in the overlaps)
1888      - extend loop range in seaice_calc_viscosity
1889      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1890      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1891      - slightly modify loops in tridiagonal solver lsr-preconditioner
1892      - by default remove the extra exchange in seaice_preconditioner with a
1893        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1894      - modify offline_exf_seaice so that old results without RAS are reproduced
1895        for output.dyn_jfnk.txt
1896      in seaice_fgmres.F (unrelated to RAS)
1897      - add a cpp-flag option for a re-ordered mapping (potentially more
1898        efficient), but because this changes the results, turn it off by
1899        default
1900      - replace the save statement by local common blocks
1901    o utils/matlab:
1902      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1903      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1904        instead of local script "load_cs.m".
1905    o pkg/seaice:
1906      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1907        to the scalarProductMetric and the unrolling. By chance this does not
1908        change the verification experiment, because of the particular domain
1909        decomposition
1910    o pkg/diagnostics:
1911      - change default missing_value from UNSET_RL to -999.
1912    o pkg/layers: improve vectorization of layers_fluxcalc.F
1913      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1914        time spent in this routine by more than a factor of 3 on an NEC-SX8
1915      - step 2: replace search algorithm by a bisection algorithm found in
1916        Press et al. Numerical Recipes in Fortran. This algorithm can be
1917        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1918        For now, use this algorithm only for TARGET_NEC_SX defined.
1919      - moved the search algorithm into a separate subroutine, that is kept
1920        within the same file for automatic inlining.
1921      - modified catching potential errors
1922    o pkg/ecco:
1923      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1924    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1925      - modifications for ALLOW_GENTIM2D_CONTROL
1926      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1927      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1928      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1929      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1930    o model/src:
1931      - account for moist thermodynamics in (dry) potential temperature equation;
1932        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1933        and cpl_aim+ocn.
1934      - also switch to standard compiler (gfortran, was using ifort previously)
1935        for fizhi-cs experiments reference output.
1936    o pkg/ctrl:
1937      - 1st step toward generic time-varying control variable (2D) via CPP option
1938        ALLOW_GENTIM2D_CONTROL
1939      - note new namelist ctrl_nml_genarr in data.ctrl
1940    o verification/global_ocean.cs32x15:
1941      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1942        thsice calling sequence and update "output.icedyn.txt" output file.
1943    o pkg/ptracers:
1944      - from Ryan A.: code to allow to restart a tracer at regular time interval
1945        specifying a reset frequency and a reset-phase (for each tracers).
1946    o pkg/thsice:
1947      - implement new sequence of calls for thsice+seaice:
1948          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1949          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1950      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1951        in CPP_OPTIONS.h) to recover old sequence;
1952      - update diagnostics for Intermediate State thsice diagnostics: now filled
1953        just before advection (instead of just after advection in old sequence);
1954      - update output of experiment offline_exf_seaice (standard test);
1955      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1956        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1957    o pkg/aim_v23:
1958      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1959      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1960      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1961      - Implement new sequence of calls for seaice advection (with thsice and
1962        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1963        was done before); change aim_do_physics.F (split the bi,bj loops block);
1964      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1965    o pkg/thsice:
1966      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1967        where just seaice diffusion is used without seaice-dynamics.
1968    
1969    checkpoint64c (2013/01/18)
1970    o pkg/seaice:
1971      - add a parameter JFNKres_tFac that can replace JFNKres_t
1972        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1973      - add a line search option to the JFNK solver
1974      - move update of u/vIce and computation of initial residual into a separate
1975        routine (same file); makes the code a little easier to read (?)
1976      - the line search requires computation of the residual and for some reason
1977        I cannot do the update of u/vIce at the beginning of the Newton loop
1978        without changing the results, so we move computation of the new residual
1979        also to the end of the Newton loop, even without the line search
1980    o pkg/mdsio:
1981      - write missing value (corresponding to undefined array value) to meta files;
1982        skip this if missing value is one (UNSET_RL would be a better value for the
1983        case of undefined missing value but it's current the default missing-value);
1984        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1985    o pkg/exf & thsice:
1986      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1987        diagnostics) even when SHORTWAVE_HEATING is #undef;
1988    o verification/cfc_example:
1989      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1990        illustrate how to use it).
1991    o verification/offline_exf_seaice:
1992      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1993        files to only one time-record.
1994      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1995        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1996        snapshot output; same mcPheePiston value as in thsice with
1997        surf-current=0.2m/s.
1998      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1999        initial conditions).
2000    o verification/cfc_example:
2001      - update file "data" with more standard choice (default rotationPeriod,
2002        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
2003        set deltaTFreeSurf to deltaTtracer) and update the output.
2004    o pkg/layers:
2005      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
2006      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
2007    o verification/offline_exf_seaice:
2008      - set all {field}period to zero for constant-in-time forcing (not tested
2009        anywhere else).
2010    o verification/offline_exf_seaice:
2011      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
2012      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
2013    o model/src:
2014      - implement Finite-Volume method for (hydrostatic) presure gradient
2015        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
2016    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
2017      - In order to be compatible with the default EVP code, this requires changing
2018        the EVP code around a little; and because any small change immediately
2019        breaks the lab_sea.hb87 verification experiment, the reference output is
2020        updated two times (each time the remaining aggrement was only 2 digits):
2021        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
2022        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
2023        The adjoint test lab_sea.evp also needed to be updated.
2024      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
2025        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
2026        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
2027        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
2028        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
2029        kept obscure, because I need to test it a little more.
2030    o pkg/cheapaml:
2031      - fix few incorrect type (_RL/_RS) in subroutine calls.
2032    o pkg/seaice:
2033      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
2034        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
2035    o model/src:
2036      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
2037        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
2038        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
2039    o pkg/cheapaml:
2040      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
2041        update output of experiment cheapAML_box.
2042      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
2043        and set them only in one place (cheapaml_readparms.F).
2044      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
2045      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
2046        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
2047    o model/src/the_main_loop.F:
2048      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
2049    o pkg/seaice:
2050      - remove legacy branch code.
2051      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
2052    o verification/*/code*/SEAICE_OPTIONS.h:
2053      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
2054        SEAICE_CAP_HEFF).
2055    o pkg/cheapaml:
2056      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
2057        to load new forcing fields.
2058      - add missing "_d 0" where it's needed; + some editing (improve indentation).
2059      - remove switch to "-r8" compiler option (no longer needed) in verification
2060        cheapAML_box, keep same output (small trucation error differences).
2061    o verification/offline_exf_seaice:
2062      - add thermodynamics only test.
2063    o verification/cheapAML_box:
2064      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
2065        keep same output (same 14 digits for cg2d).
2066      - switch on "-r8" compiler option (some numerical values are missing
2067        the "_d 0") and update output (only 6 digits for cg2d were preserved).
2068    
2069    checkpoint64b (2012/12/24)
2070    o pkg/cheapaml:
2071      - remove un-used variables (Qnet,EmPmR) from pickup files.
2072      - store tendency of advected variables into cheapaml pickup file
2073        and fix the AB-2 restart.
2074    o verification/offline_exf_seaice and lab_sea adjoint:
2075      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
2076      - switch to 4 time steps in offline, consistent with lab_sea.
2077      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
2078      - update results after change of experiment seaice.
2079    o pkg/seaice:
2080      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
2081        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
2082        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
2083        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
2084    o model/src:
2085      - add run-time parameter to select CG2D solver minimum-residual solution
2086        (in case of a poor convergence).
2087    o pkg/seaice/seaice_lsr.F
2088      - move calculation of matrix coefficients into new
2089        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
2090        file; the main purpose of this change is to be able to reuse the code
2091        in S/R SEAICE_PRECONDITIONER
2092      - modify the computation of the residual so that the mass of sea-ice
2093        is not used twice; this simplifies the calculations, but since
2094        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
2095        not tested in testreport---this does not affect the testreport results.
2096    o verification/seaice_obcs:
2097      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
2098        verification/lab_sea/input.salt_plume; changes results/output.txt*
2099    o model/src:
2100      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
2101    o pkg/seaice:
2102      - improve description of parameters in seaice_fgmres.F and start
2103        cleaning up the code
2104      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
2105        second argument
2106      - add a metric based on grid cell area to SEAICE_SCALPROD; update
2107        results of offline_exf_seaice.dyn_jfnk
2108      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
2109    o pkg/aim_v23:
2110      - fix an other bug in dissipation heating (grid-cell area was missing).
2111    o model/src + pkg/seaice:
2112      - add global (multi-tile) linear solver for pair of tri-diagonal system
2113        along X and Y lines, respectively for U and V component.
2114        Note: 1) MPI and cube-exchange not yet coded.
2115            2) probably not accurate for poorly conditioned / large size problem.
2116      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
2117        default: not compiled and not used.
2118    o pkg/seaice:
2119      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
2120        introduce bi/bj loops and use global_sum_tile_rl instead of
2121        mpi_allreduce in seaice_fgmres.F
2122      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
2123      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
2124      - add a verification experiment for JFNK in offline_exf_seaice
2125    o verification:
2126      - change (for now, only fwd test) offline_exf_seaice experiment:
2127        use a re-entrant channel with idealized coastline (trapezoidal shape)
2128        at southern boundary to explore seaice dynamics and thermodynamics
2129        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
2130        secondary test (input.thsice) use thermodynamics only with SST relaxation.
2131      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
2132    o pkg/exf:
2133      - disable "sstExtrapol" when Nr=1
2134    o verification:
2135      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
2136        to test pkg/cheapaml.
2137    o pkg/aim_v23 & pkg/shap_filt:
2138      - fix dissipation heating (erroneous gravity multiplication factor).
2139    o pkg/seaice:
2140      - remove unused field pressPre from jfnk solver
2141      - rename two subroutines in seaice_preconditioner.F
2142    o eesupp/src:
2143       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
2144    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
2145       - remove wrong parts of the rhs and the lhs (were in there
2146         because I did not understand the concept of this preconditioner)
2147       - add an exchange between u- and v-sweep. This increases communication
2148         by a factor of two but improves the convergence of jfnk. Ideally,
2149         one would like the u- and v-sweep to be independent. So far within
2150         undocumented ifdefs
2151       - reorganize the extra computations for printing the residuals
2152    o tools/genmake2:
2153      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
2154        since it's not necessary (and was preventing to use MNC in some cases).
2155    
2156    checkpoint64a (2012/11/16)
2157    o pkg/autodiff:
2158      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
2159        autodiff_readparms.F no longer depends on calling order (within
2160        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
2161        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
2162        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
2163    o pkg/obcs:
2164      - adding tidal velocity forcing capability to obcs
2165        for usage example, see verification/seaice_obcs/input.tides
2166    o pkg/seaice:
2167      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
2168        SEAICE_LSRrelaxU/V
2169      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
2170    o pkg/aim_v23:
2171      - implement heating from friction (bottom friction and stratospheric drag).
2172    o pkg/shap_filt:
2173      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
2174        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
2175    o model/src:
2176      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
2177        time-constant addMass field from file (addMassFile);
2178      - support for heating due to friction (and Kinetic Energy dissipation):
2179        add option, run-time switch and 3-D field array + support code ; each pkg
2180        or S/R can add heating contribution (if there is a sink of KE); the sum is
2181        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
2182    o pkg/seaice:
2183      - complete merge of ITD code into seaice_growth.F
2184        from MITgcm_contrib/torge/itd/code/
2185        no verification so far, but Torge Martin tested
2186        "1-D test case and Beaufort set up;
2187        deliver okay results after 1 model year."
2188      - complete merge of SEAICE_SIZE.h into all relevant routines
2189      - move computation of eta at Z-points into calc_viscosities
2190        + introduce global field etaZ
2191        + add different methods for computing etaZ, for now the old
2192          method (simple averages of eta to Z-points) is hardwired
2193        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
2194          seaice_preconditioner
2195      - simplify computations for SEAICE_ZETA_SMOOTHREG
2196      - seaice_preconditioner:
2197        + replace one remaining press by pressLoc (mistake)
2198        + adjust printing of residuals
2199      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
2200        + add (SEAICE.h) and rename some counters (initiliased in
2201          seaice_init_fixed.F)
2202        + add _BEGIN/END_MASTER (myThid)  around print statements
2203        + print total number of iterations and failures over SEAICE_monFreq
2204          interval to STDOUT
2205      - move control over output-messages by fgmres to seaice_jfnk to save
2206        some operations
2207      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
2208        in order to make restarts with sol .ne. zero (fgmres with restarts)
2209        (seaice_jfnk.F, seaice_fgmres.F)
2210      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
2211        a serious convergence problem when open boundaries are involved
2212    o pkg/ggl90: fix computation of control volumes for the case of
2213      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
2214      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
2215    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
2216    o pkg/autodiff
2217      - Add inAdMode switch for SEAICEuseDYNAMICS:
2218        SEAICEuseDYNAMICSinAdMode
2219        (extend logic in ADAUTODIFF_INADMODE_SET)
2220    o pkg/seaice
2221      - Step 1 of merging ice-thickness distribution (ITD) code from
2222        MITgcm_contrib/torge/itd/ (author: Torge Martin)
2223        The code implements concept laid out in Thorndike et al. (1975);
2224        code is enabled via CPP flag SEAICE_ITD
2225        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
2226        code is not complete yet!!
2227      - SEAICE_SIZE.h now included in almost all seaice routines
2228    o verification (using seaice):
2229      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
2230        global_ocean.cs32x15.seaice ; update results.
2231      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
2232      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
2233        offline_exf_seaice (previously compiling B-grid).
2234    o pkg/exf:
2235      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
2236        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
2237        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
2238    o pkg/layers (adjust changes from Sept 19):
2239      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
2240        this allows to remove "layers_maxNum" dimension from all layers arrays.
2241    o pkg/layers (adjust changes from Sept 19):
2242      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
2243      - snap-shot extended to all type of layers (not just the 1rst type);
2244      - remove layers variables when corresponding CPP option is undef.
2245    o pkg/layers:
2246      - rename pkg/layers variable and add new output (layer exist & un-weighted
2247        velocity in layer)
2248    o pkg/seaice:
2249      - simplify (?) ocean-drag coefficent computations by using
2250        the same routine in all three solvers (saves some code lines)
2251      - remove global fields DRAGA and DRAGS from C-grid code and
2252        declare them locally in lsr.F (the only place where they are
2253        still used)
2254      - update AD output of lab_sea.evp (very sensitive anyway).
2255    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
2256      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
2257      and SEAICEuseJFNK=.true. A few things to note:
2258      - involves a FGMRES, that is parallel but very inefficient,
2259        because of many scalar products (global sums) in the Gram-Schmidt
2260        orthogonalization method. Needs to be replaced. Original code
2261        from J.-F. Lemieux
2262      - preconditioner for FGMRES is a stripped down version of LSOR
2263      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
2264        preconditioner. For the preconditioner, the default is set to 10.
2265      - Jacobian times vector is computed with finite differences
2266      - marginally related to JFNK-solver: add a smooth regularization for
2267        zeta with tanh that will improve convergence (Lemieux and Tremblay,
2268        2009) for any implicit solver (not implemented for EVP because EVP
2269        does not need this regularization in the first place). Define
2270        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
2271    o eesupp/src:
2272      - check in genmake2 that intrinsic S/R flush is available.
2273      - add S/R to flush IO unit (if intrinsic S/R flush is available)
2274      - flush standard & error msg unit before MPI termination
2275      - if debugMode, flush IO unit after printing msg
2276    o pkg/ctrl:
2277      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
2278        to ctrl_set_unpack_xyz.
2279    
2280    checkpoint64 (2012/10/09)
2281    o pkg/shelfice
2282      - in mom_fluxform.F, mom_vecinv.F:
2283        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
2284        Bug fix KappaRU -> KappaRV
2285        does not change verification/isomip but may change other setups
2286        (presumably constant KappaRU=KappaRV)
2287      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
2288    o pkg/obcs:
2289      - fixed some indexing bugs in obcs_seaice_sponge.F
2290      - added obcs relaxation subroutines for HSALT and HSNOW
2291      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
2292    o pkg/seaice:
2293      - add "multicategory" parameterization for snow in analogy to ice,
2294        default is off for now.
2295    o pkg/obcs:
2296      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
2297        see verification/seaice_obcs/input.seaiceSponge for example application.
2298      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
2299        index setting by master-thread. This fix multi-threads Pb in previous modifs.
2300    o pkg/layers :
2301      - add diagnostics to pkg/layers
2302      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
2303        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
2304    o pkg/generic_advdiff/gad_implicit_r.F :
2305      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
2306    o pkg/seaice/seaice_growth.F:
2307      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
2308    o pkg/obcs:
2309      - change default setting of OBCS_UVICE_OLD from defined to undef;
2310      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
2311        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
2312      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
2313      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
2314        with Southern & Western OB at a tile edge (at least in a simple set-up).
2315    o pkg/obcs:
2316      - change settings of OB index in case OB coincides with tile edge (shared by
2317        2 tiles), so that common OB location is registered by both tiles (instead of
2318        only 1). However, for Southern and Western OB, index value = 0 is not
2319        recognized as valid OB index (=default null value) and needs to be fixed.
2320      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
2321      - new parameter "OB_indexNone" for null index value (for now, still zero)
2322        to replace hard-coded null index value of zero.
2323    o pkg/exch2:
2324      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
2325        always check buffer-size (but outside the loop); move checking for valid
2326        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
2327        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
2328    o pkg/ctrl (pack & unpack):
2329      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
2330        (locally defined) for different variables (+ remove the variable-specific
2331        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
2332        (to be extended to other local file names in ctrl.h).
2333    o pkg/flt:
2334      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
2335    o pkg/mdsio:
2336      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
2337    o tools/genmake2:
2338      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
2339        (added by Alistair in version 1.51 for building without make depend);
2340      - remove Header files list (H_SRC_FILES) from the dependence of targets
2341         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
2342        place in version 1.23): this save going through staf when unrelated header
2343        file has been modified.
2344       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
2345        "make depend" step, still need to do "make links" before "make adtaf".
2346    o eesupp/src (+ few pkg src files) & genmake2:
2347      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
2348      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
2349      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
2350         upper/lower case ; account for space between "#" and undef/define)
2351    o pkg/flt (with exch2):
2352      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
2353      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
2354    
2355    checkpoint63s (2012/09/05)
2356    o pkg/ecco:
2357      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
2358      - add more relevant #ifdef ALLOW_SMOOTH ones.
2359      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
2360    o pkg/ctrl:
2361      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
2362        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
2363      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
2364        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
2365        ctrlSmoothCorrel3D (new).
2366        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
2367      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
2368      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
2369        controls when useAtmWind, and vice versa.
2370      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
2371      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
2372          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
2373      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
2374          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
2375      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
2376        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
2377    o pkg/smooth:
2378      - remove un-necessary includes.
2379      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
2380        Those CPP options were never defined, and not necessary.
2381    o model/src:
2382      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
2383      - standard treatment of useSMOOTH.
2384    o pkg/autodiff:
2385      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
2386        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
2387    o pkg/exch2:
2388      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
2389        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
2390      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
2391        and tiles to process mapping.
2392      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
2393        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
2394        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
2395        from w2_eeboot.F to w2_readparms.F.
2396    o eesupp/src:
2397      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
2398        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
2399        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
2400      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
2401        is defined (remove condition on usingMPI) to match cases where MPI_INIT
2402        has been called.
2403      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
2404      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
2405        (so that on 1 proc, get same myPid independently of usingMPI)
2406      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
2407        useCubedSphereExchange with EXCH-1 (safer).
2408      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
2409    o pkg/ggl90:
2410      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
2411        used in ALLOW_GGL90_SMOOTH code.
2412    o pkg/flt:
2413      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
2414        floats at the Southern end of the domain).
2415    o eesupp/inc:
2416      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
2417        but not used (and not to be used) anywhere, just for documentation.
2418    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
2419      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
2420        a) can damage previously written records in any other multi-record files.
2421        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
2422    o tools/genmake2:
2423      - define variable MAKE within Makefile and use it in place of 'make';
2424      - update AD_CONFIG.h (if needed) before building any of the executable
2425        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
2426        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
2427      - always print usual warning comment 'this file is automatically generated'
2428        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
2429    o pkg/cheapaml:
2430      - updated to correspond to the code used in accepted paper (Nico Wienders).
2431    o pkg/exf:
2432        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
2433        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
2434        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
2435    o pkg/exf, autodiff, ctrl, ecco and seaice:
2436        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
2437    o pkg/ctrl, ecco:
2438        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
2439        Depending on useAtmWind, one is inactive, and the other is active (see
2440        exf_getffields.F/exf_getsurfacefluxes.F).
2441    o tools/genmake2:
2442      - improve error msg when failing in 2nd test of check_for_broken_Ff
2443      - fix option '-makefile' short-name (-mf according to genmake2 -help)
2444      - source local config file "genmake_local" just after processing the genmake2
2445        command arguments (previously done before processing arg).
2446    o pkg/grdchk:
2447      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
2448        to this routine from cost_final has been dropped in g_cost_final)
2449      - improve printed information (more explicit msg, no longer using "print *,"
2450         fix fcpertminus printed value).
2451    o model/src:
2452      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
2453        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
2454        this prevents getting cost-funct reset in adinitialise_varia recomputations.
2455    o pkg/dic:
2456      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
2457        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
2458    o pkg/grdchk:
2459      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
2460      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
2461    o pkg/autodiff/ctrl/grdchk :
2462      - attempt to sort out what works and what does not,
2463        with regard to I/O, and to warn/stop accordingly.
2464    o pkg/grdchk:
2465      - attempt to fix grdchk in the case of useSingleCpuIO.
2466      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
2467       statements were moved from grdchk_main.F and into
2468       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
2469      - a global sum is applied to record numbers icvrec/layer
2470       out of grdchk_loc so that they be passed to I/O routines.
2471    o pkg/smooth:
2472      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
2473        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
2474    o verification/testreport:
2475      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
2476      - can also use compressed (gzip) reference output file;
2477      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
2478        to be easier to collect by testreport.
2479      - update existing TLM output (half out-of-date by more than 3 yrs).
2480      - report NETCDF & LAPACK settings (from genmake2) in output dir.
2481      - report run-time in each individual summary (previously only for AD test);
2482        for TLM test, add also TAF version.
2483      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
2484    
2485    checkpoint63r (2012/08/15)
2486    o tools/genmake2:
2487      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
2488    o pkg/ecco/ecco_cost_final.F :
2489      - fix fc print statements (to stdout and costfunction0000) so
2490        that the printed value is always after the global sum.
2491    o pkg/seaice/seaice_dynsolver.F :
2492      - fix ice strength assymptote at SEAICE_area_max<1
2493        (no change for the standard case of SEAICE_area_max=1)
2494    o some cleaning:
2495      - pkg source files: ensure that all *.F files from each pkg included the
2496        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
2497        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
2498        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
2499        includes;
2500      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
2501      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
2502        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
2503        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
2504      - update option-file CPP_OPTIONS.h of all AD experiments:
2505        * no longer include PACKAGES_CONFIG.h ;
2506        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
2507        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
2508          including ECCO_CPPOPTIONS.h).
2509    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
2510      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
2511        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
2512        not necessary accurate).
2513      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
2514        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
2515        deliberately break compilation (a remainder that it needs to be customized)
2516      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
2517      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
2518      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
2519    o tools/genamke2:
2520      - check for lapack.
2521    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
2522      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
2523        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
2524        from both packages.
2525      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
2526      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
2527      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
2528        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
2529    o pkg/cost : add comments to explain special and/or untested setups.
2530    o pkg/exf:
2531      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
2532        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
2533    o verification/*/code_ad:
2534      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
2535      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
2536      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
2537        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
2538    o pkg/seaice :
2539      - added possibility to change ice strength/PRESS0 relationship to
2540        HEFF, according to the following run time parameters
2541        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
2542        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
2543        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
2544    o pkg/ggl90 :
2545      - added run time flag mxlSurfFlag to include the code that ensure
2546        mixing between first and second level (previously included as a comment)
2547    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
2548      - add test of newly added dumpAdByRec=T option where
2549        we write all records to one file per variable.
2550    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
2551      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
2552        to check that this code is ok with taf and compiles in adjoint.
2553    o pkg/autodiff :
2554      - added run time param dumpAdByRec : ad dump format switch.
2555        If true then write all records to one file per variable.
2556        Else write one file per record (remains the default).
2557      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
2558    o pkg/seaice:
2559     - Added SEAICEuseTILT run time switch : if set to
2560       false then omit the tilt term in seaice dynamics.
2561     - Fix free drift calculation.
2562    o pkg/shelfice:
2563      When initializing SHELFICEDragQuadratic, set default to be
2564      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
2565      but retain option to set it independently
2566      (inconsistenty spotted by Veronique Dansereau)
2567    o eesupp/inc:
2568      - in EEPARAMS.h, add real-type constant for some frequently used simple number
2569         (0,1,2,1/2), with name explicitly referring to RS/RL type.
2570    o model/src:
2571      - move balancing of relaxation terms to new S/R balance_relax.F.
2572    o pkg/autodiff:
2573      re-write active I/O high-level (control) S/R:
2574      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
2575      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
2576      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
2577        MDS_READ/WRITE_FIELD); change loops to multi-threads.
2578      - update and merge active_file_control_slice.flow into active_file_control.flow
2579      - update the calls in lower level S/R (active_file.F, active_file_g.F and
2580        active_file_ad.F) keeping the argument list and function unchanged.
2581      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
2582        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
2583      - new low-level active I/O routines, one for each type (RL/RS), for active var
2584        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
2585        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
2586        right type.
2587    o autodiff and RS=real*4:
2588      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
2589        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
2590      - change argument type of 3-D mask argument to _RS to match type in the call
2591        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
2592    o pkg/thsice:
2593      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
2594      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
2595        fresh-water flux: uniform correction or proportional to local precip.
2596    o pkg/ctrl:
2597      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
2598      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
2599                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
2600      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
2601    
2602    checkpoint63q (2012/07/30)
2603    o pkg/autodiff:
2604      note about monitor and snap-shot of ad-variables:
2605      a) need to apply ADEXCH before monitor or output of ad-vars to include
2606       overlap contributions (was done for adjDump but missing for monitor).
2607      b) since ADEXCH implies adding overlap values to interior array, machine
2608       truncation error is expected when adding an ADEXCH call in the middle of
2609       the time-stepping (although mathematically identical).
2610      modifs:
2611      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
2612        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
2613      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
2614        apply ADEXCH before monitor or snap-shot of ad-variables:
2615           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
2616      - implement new method (copy+adexch) for snap-shot and monitor of main model
2617        ad-vars (initially not used by default -> output unchanged).
2618      - change default (set to 2) to use new method and update few output_adm.txt
2619        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
2620        and both tutorial_tracer_adjsens tests).
2621      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
2622        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
2623    o pkg/ctrl:
2624      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
2625      generic control variables via
2626      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
2627      Only required customization should be S/R ctrl_map_ini_genarr.F
2628      (routine in repository contains example)
2629    o pkg/exf:
2630      - fix and refine checking of surface-relaxation setting when using EXF
2631    o verification (adjoint exp):
2632      - reduce length of simulation by half for experiment global_ocean.cs32x15
2633        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
2634    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
2635      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
2636        of KE that can occur with aggressive optimization
2637      + put quadratic bottom drag calculation in separated loops (only done if
2638        using bottomDragQuadratic)
2639    o model/src: CG2D_NSA
2640      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
2641         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
2642      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
2643         change cg2d residual target to be expressed in Wunits (=> do not normalise
2644         RHS ; this fix global_max Pb with TAF); update output.
2645    o verification/tutorial_tracer_adjsens:
2646       improve parameter consistency (and get rid of warnings):
2647       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
2648       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
2649       - use staggerTimeStep (for stability) in som81; use default rotation period.
2650    o pkg/exch2:
2651      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
2652        reset to 0 = 1 long line in X)
2653    o pkg/mdsio:
2654      - fix reading of dimensions from meta file for large-size domain
2655    o model/src:
2656      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
2657      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
2658        Cubed-Sphere Exch with CS-corners inside the domain;
2659        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
2660        globalArea and to set hasWetCSCorners.
2661      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
2662        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
2663      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
2664        useCDscheme and useCubedSphereExchange).
2665    o pkg/seaice/seaice_growth.F :
2666      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
2667        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
2668        when the previous code was not correct.
2669      - in all cases diagnoze the boundary condition mismatch to SIaaflux
2670      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
2671        that term to QNET (essentially to set the melt/freeze water to 0degC).
2672        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
2673    o verification/global_ocean.cs32x15/input.seaice :
2674      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
2675      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
2676      - update results (output.seaice.txt) accordingly.
2677    o verification/lab_sea/input/data.seaice :
2678      - remove SEAICEheatConsFix, which is now be tested
2679        in global_ocean.cs32x15. The presently coded fix
2680        is only consistent with real fresh water + nlfs.
2681      - update results (output.txt) accordingly.
2682    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
2683    o AD_CONFIG.h file:
2684      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
2685      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
2686        add it explicitly in each fortran src file where it is needed.
2687        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
2688        thus introducing potentially wrong dependency; therefore, better to include
2689        it only where it's really needed, and after any other included OPTIONS file
2690        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
2691        or ALLOW_TANGENTLINEAR_RUN).
2692    
2693    checkpoint63p (2012/07/06)
2694    o pkg/autodiff:
2695      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
2696      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
2697        which are now read from new parameter file "data.autodiff" (inAdExact
2698        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
2699      - add file "data.autodiff" in all verification/*/input_ad/ directories.
2700      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
2701        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
2702    o verification/tutorial_tracer_adjsens/
2703      - add extra sub-verification which uses "SOM" advection scheme
2704        (2nd Order-Moment Advection Scheme, Prather Limiter) with
2705          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
2706        and in data:
2707          multiDimAdvection=.TRUE.,
2708          tempAdvScheme=81,
2709          saltAdvScheme=81,
2710    o model/src:
2711      - introduce ALLOW_BALANCE_RELAX which allow the removal
2712       of the global mean of relaxation terms by setting
2713       balanceThetaClimRelax and balanceSaltClimRelax
2714      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
2715       This case is now treated appropriately in seaice_growth.F
2716    o pkg/seaice:
2717      - do balanceEmPmR and balanceQnet based on the net fluxes
2718        (SItflux) that enter the ocean+ice system rather than QNET
2719        and EMPMR. Works best in real fresh water.
2720      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
2721        out of the diagnotics bloc, and stored in global arrays.
2722    
2723    checkpoint63o (2012/06/29)
2724    o vertical mixing schemes:
2725      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
2726      - replace computation of density (in Function STATE1, opps_calc.F) by a call
2727        to S/R FIND_RHO_SCALAR
2728      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
2729        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
2730        affects output (vermix.ggl90) at truncation level.
2731    o testreport:
2732      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
2733        (nSx,nSy) for the number of threads (from eedata.mth)
2734    o model/src:
2735      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
2736        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
2737  o verification/tutorial_tracer_adjsens/  o verification/tutorial_tracer_adjsens/
2738    - compile with ALLOW_CG2D_NSA    - compile with ALLOW_CG2D_NSA
2739    - run with nonlinFreeSurf=3    - run with nonlinFreeSurf=3

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