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revision 1.2075 by gforget, Mon Sep 29 17:16:46 2014 UTC revision 1.2342 by jmc, Wed Jul 26 21:24:31 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o eesupp/src:
8      - add argument "procId" to S/R EESET_PARMS to fix  scratchFile1 & 2 setting
9        (case TARGET_BGL or TARGET_CRAYXT) for early call (from eeboot_minimal.F):
10        called with myProcId in eeboot.F and with mpiMyWId in eeboot_minimal.F
11    o pkg/streamice:
12      - remove blank between _EXCH_XY_RL and "()", which my Apple Xcode
13        preprocessor /usr/bin/cpp cannot interpret; 3 instances in total in
14        streamice_driving_stress_fd.F and streamice_advect_2dtracer.F
15    o pkg/diagnostics:
16      - new option to allow to cumulate thickness-factor (hFac) weighted field
17        (if field permitted); implemented by changing sign of "jdiag" pointer
18        (> 0: cumlulate field, < 0: cumulate hFac weighted field).
19        a) restricted to 3-d (Nr levels), level centered diagnostics at U,V or Cell
20           center position (gcode(2)='U','V','M' & gcode(3,5,9:10)='R',' ','MR')
21        b) for now, activated by setting fileFlags 3rd character to 'h'.
22    
23    checkpoint66i (2017/07/18)
24    o pkg/cheapaml:
25      - add parameter "useRelativeWind", default set to False; this change the
26        previous setting which was always using relative wind.
27    o add hooks for the Parallel Data Assimilation Framework PDAF
28        (http://pdaf.awi.de/) in eeboot_minimal.F and the_main_loop.F;
29        to use set CPP-flag USE_PDAF in CPP_EEOPTIONS.h
30    o pkg/exf:
31      - interpolation of vector fields (exf_interp_uv.F): fix bug in calculation
32        of South-Pole mean value.  
33      - interpolation near the poles, case where second additional row is at the
34        pole (or beyond the pole and moved to the pole): change first addition row
35        value to a linear interpolation between pole and 1rst (S.pole)/last (N.pole)
36        row (instead of just a copy of it).
37    o pkg/seaice:
38      - prevent JFNK and KRYLOV solvers from trying to reduce a residual of 0
39      - add the option to compute no-slip du/dy, dv/dx (i.e.
40        the offdiagonal strain rate e12) by a second order approximation
41        on the boundary; works only with JFNK, KRYLOV, or EVP solvers, because
42        it is too messy to implement for the implicit LSR matrix.
43        SEAICE_2ndOrderBC = .FALSE. by default
44    
45    checkpoint66h (2017/06/02)
46    o pkg/seaice:
47      - add new routines to compute stress tensor components and stress tensor
48        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
49      - change names of diagnostics SIsigI/II (commonly used for invariants)
50        to SIsig1/sig2 (more common for principal components) to avoid confusion
51    o pkf/exf:
52      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
53        similarly, stop if rotateStressOnAgrid with constant wind-stress.
54    o pkg/seaice:
55      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
56        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
57      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
58        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
59    o pkg/diagnostics:
60      - small piece of code to rename (old) diagnostics, when namelist is processed.
61    o model/src:
62      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
63        originally, set as minimum of adjacent hFacC factor ; now (new default)
64        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
65        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
66    o pkg/seaice:
67      - add momemtum advection, off by default, still in test phase
68        most of the momentum advection code is adapted and reused from mom_vecinv
69    o pkg/mom_vecinv:
70      - pass these runtime flags:
71        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
72        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
73        so that these routines can also be used in pkg/seaice.
74    
75    checkpoint66g (2017/04/24)
76    o model/src:
77      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
78        to get same expression (regarding machine truncation) in different places
79        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
80        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
81        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
82    o pkg/shelfice:
83      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
84        to shelfice_init_fixed.F
85      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
86        ini_masks_etc.F for now) to update ocean upper boundary position according
87        to ice-shelf topography (instead of directly updating hFacC).
88    o model/src:
89      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
90        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
91    
92    checkpoint66f (2017/04/06)
93    o model/src:
94      - add specific run-time param to select level of printed plot-field-maps,
95        set by default to debugLevel. Remove internal param "printDomain".
96    o pkg/seaice:
97      - add flag to add snow mass to seaiceMassC/U/V, the default is
98        SEAICEaddSnowMass=.FALSE., not to change previous results
99    o pkg/bling
100      - Bug fix in bling_production regarding unit conversion for diagnostics
101        being put in the wrong place
102    o model/src:
103      - add back recomputation of rSurfW & S to ensure consistent column thickness
104        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
105        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
106        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
107    o pkg/autodiff:
108      - clean-up "checkpoint.flow"
109    o pkg/rw (Contribution from Jody Klymak):
110        option to set mds file suffix as function of time in simulation:
111        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
112           to select file suffix format; by default (=0), use iteration number;
113        *) add simple routine to return file suffix according to rwSuffixType;
114        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
115           use new S/R to get file suffix, except for debug output file (diagFreq)
116           and pkgs offline & rbcs input files.
117    o pkg/rw:
118      - uniform processing of "I10" suffix across writing fld routines; used to
119        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
120        (similar to cg3d.F, cg3d_ex0.F)
121    o pkg/mom_vecinv:
122      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
123        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
124    o pkg/bling:
125      - Many small changes intended to clean the code.
126        Unnecessary ADJOINT_SAFEs removed ;
127        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
128        diagnostics added.
129    
130    checkpoint66e (2017/03/14)
131    o pkg/exf:
132      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
133        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
134        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
135        avoid any dynamic allocation ;
136      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
137        read-in ; add warning when file is read-in but not used within pkg/exf ;
138        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
139      - update exf_summary.F (print {FLD}RepCycle).
140    o verification/global_with_exf:
141      - switch on exf interpolation in AD test (just like the forward test)
142    o pkg/mom_vecinv:
143      - add storage directives to avoid recomputations within mom_vecinv.F
144        which were generating seg. fault with gfortran -devel
145    o pkg/ctrl, pkg/smooth:
146      - initialize array halos which were generating seg. fault with
147        gfortran -devel in adjoint mode
148    o pkg/exf:
149      - for each input field, enable to specify a field specific repeat-cycle
150        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
151    o verification/lab_sea:
152      - update AD results of primary test and noseaicedyn test after switching
153        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
154        check stays about the same.
155    o pkg/exf:
156      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
157      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
158    o pkg/bling, USE_EXFCO2 code:
159      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
160      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
161    o pkg/exf:
162      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
163      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
164        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
165        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
166      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
167        EXF_INIT_FLD) and update calls in exf_init_varia.F
168      - For now, for backward compatibility, keep a simplified version of S/Rs
169        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
170      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
171        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
172    o tools/genmake2:
173      - replace "bc -l" (only used once) by "expr" (already used).
174    o verification/global_ocean.cs32x15:
175      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
176        Note: exf setting (data.exf) can be compared to other exf secondary exp
177        "seaice" (kept with useCAL=T) which has same time dependent forcing.
178    
179    checkpoint66d (2017/02/13)
180    o pkg/exf:
181      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
182        early on (in packages_boot.F) to stress this change in pkg setting.
183      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
184    o model/src:
185      - move call to ecco_phys to end of time step; this may induce minor
186        cost function changes by shifting time averages by one time step
187        for some variables; this revision resulted in changed adjoint results
188        in MITgcm_contrib/verification_other/global_oce_cs32
189    o pkg/exf:
190      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
191        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
192        e.g. precip, are not available.
193    o pkg/flt:
194      - flt_init_varia.F: use pickupSuff if specified
195      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
196        intermediate, step towards completing pkg/exch2 support within pkg/flt;
197        ifdef DEVEL_FLT_EXCH2 then:
198        - flt_init_fixed.F: comment out stop
199        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
200        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
201        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
202        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
203    o tools/genmake2 & pkg/pkg_depend:
204      - define new type of pkg dependency rule ("=pkg_x"), less strict than
205        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
206        (-pkg_x in packages.conf).
207      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
208      - add "+cal" to dependency list of pkg/ecco (needed to compile).
209      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
210    o utils/matlab:
211      - adding ocean_basin routines for defining basin masks.
212    o pkg/exf:
213      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
214        arguments, allowing to check (and stop) if parameter setting of
215         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
216        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
217        for backward compatibility.
218      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
219        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
220    o pkg/bling (USE_EXFCO2 code):
221      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
222        by adding a call to S/R EXF_GETFFIELD_START.
223    o pkg/exf:
224      - allows to compile without pkg/cal (but disabled by current dependency
225        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
226        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
227        of {FLD}startdate1 & date2 ; consistency check not yet coded.
228    o verification/global_ocean.cs32x15:
229      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
230        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
231    o pkg/exf:
232      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
233        calculations); change FWD experiment global_ocean.cs32x15
234        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
235    o pkg/exf:
236      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
237         {FIELD}startdate to {FIELD}StartTime
238        Note: new name also fit better the content, i.e, a start time in second.
239    o eesupp/src:
240      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
241    o pkg/exf:
242      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
243        to allow to read-in Sensible & Latent Heat flux ;
244      - simplify pkg/exf main options:
245        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
246           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
247           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
248        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
249           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
250        3) improve options documentation in EXF_OPTIONS.h.
251    o pkg/ecco:
252      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
253        ecco_summary.F: add passive tracer cost functions to gencost;
254        m_ptracer and m_boxmean_ptracer
255    o pkg/ctrl:
256      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
257        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
258        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
259        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
260    o model/src:
261      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
262        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
263    o pkg/exf:
264      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
265        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
266    
267    checkpoint66c (2017/01/19)
268    o verification:
269      - add new option "-src" to testreport to only produce source code (*.f),
270        including taf output src code (if using '-adm'/'-tlm' option).
271    o pkg/exf:
272      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
273    o pkg/diagnostics:
274      - add run-time variable diagMdsDir to specify a subdirectory for
275        diagnostic output when mds is being used and mdsioLocalDir is not.
276    o pkg/mnc:
277      - mnc_utils.F: edit stop message
278    o pkg/autodiff:
279      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
280        add HAVE_SYSTEM bracket around system call to mkdir
281    o pkg/profiles:
282      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
283        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
284      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
285        add HAVE_SYSTEM bracket around system call to mkdir
286    o pkg/smooth:
287      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
288      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
289      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
290    o pkg/exf:
291      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
292        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
293        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
294      - summary: skip detailed field report if not used (empty file-name).
295    o tools/xmakedepend:
296      - In case line editor "ed" is missing, switch to "sed" command to clean-up
297        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
298    o pkg/exf:
299      - change definition of "hflux" input file to always include Short-Wave;
300        this is now consistent with hflux computation (if using bulk-formulae)
301        and hflux diagnostic & documentation (in EXF_FIELDS.h).
302    
303    checkpoint66b (2016/12/01)
304    o model & momentum pkgs:
305      - implement fully implicit bottom friction combined with implicit surf.
306        pressure, for now, only in hydrostic formulation:
307        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
308          and run with selectImplicitDrag=2 ;
309        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
310      - partial implicit time-stepping (bot. friction + vert. visc first, then
311        surf. press) corresponding to selectImplicitDrag=1 should be applicable
312        to NH formulation but not available until we solve for surf. pressure
313        increment (instead of full etaN).
314      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
315        with implicit vertical viscosity.
316    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
317      - this is a first version that includes many regularisations that may
318        not all be necessary, to be sorted out,
319      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
320      - change one verification experiment in seaice_itd to use and test new code
321      - seaice_growth: catch a case where the argument of log can be zero
322        or smaller (important for code stability)
323    o model/src:
324      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
325        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
326        similar A.X'=Y' system (with same matrix A) in subsequent calls;
327        switch based on errCode (In/Out) argument value; in calling routines,
328        initialise errCode before first call.
329    
330    checkpoint66a (2016/10/18)
331    o pkg/bling:
332      - BLING package now loads in atmospheric pCO2 file using exf package routines
333        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
334    o model/src & pkg/ptracers:
335      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
336        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
337        implicitDiffusion (respectively) are used (even without momImplVertAdv
338        or temp,salt,PTRACERS_ImplVertAdv).
339    o model/src & generic_advdiff:
340      - add parenthesis in main diagonal calculation of implicit vertical
341        diffusion matrix (impldiff.F & gad_implicit_r.F).
342        This affects results at machine truncation level; update output of many
343        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
344    o pkg/mom_commom & generic_advdiff:
345      - add deep atmosphere and anelastic scaling factor in implicit vertical
346        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
347    o model/src:
348      - remove few unnecessary temp array copies in solve_tridiagonal.F
349        & solve_pentadiagonal.F
350    
351    checkpoint65z (2016/09/28)
352    o pkg/seaice: fix multithreading for seaice_fgmres.F
353      - remove unecessary variables from common blocks
354      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
355        basis, that are stored in commom blocks (including integer variable i1)
356      - clean up code a little by removing commented lines that refer to
357        original code
358      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
359    o MITgcm manual:
360      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
361        preliminary documentation for generic controls (8.3; ctrl.tex),
362        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
363        ecco_costfunction.tex
364    o pkg/ecco:
365      - update and cleanup list of CCP options
366      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
367        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
368      - add checks that retired run-time options are not used, and in relation
369        to gencost_mask and gencost_errfile
370      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
371        gencost_nrecperiod
372      - fix m_eta computation for virtual salt flux case
373      - add m_horflux_vol case (selected via gencost_barfile) that computes
374        transports via cost_gencost_boxmean (gencost_flag=-3)
375      - use gencost_flag more systematically (i.e., avoid using gencost_name)
376        for code switches (aside from physical variable selection)
377    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
378      attempt appears to be a bit of a hack and my need some repair down the road
379    o pkg/exf:
380      - interpolation near South Pole: fix criteria on input field latitude.
381    o pkg/icefront & pkg/exf:
382      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
383        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
384    o pkg/exf:
385      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
386        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
387        (add suffix "_out" instead of a prefix); keep same record number as in
388        input file but always write record 1 first (to avoid a STOP in I/O S/R).
389        Change output file content by writing interpolated field before applying
390        land-sea mask (helpful for debug).
391      - 2 compon. vector interpolation with rotation: apply scaling factor on
392        each compon. (Eastward and Northward) just before rotation.
393    o pkg/bling:
394      - Cleaned package. Removed not needed code and comments.
395      - adjoint example now works
396        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
397    o pkg/ptracers:
398      - add Bruno Deremble's code to complete the linear surface correction
399        for tracer conservation;
400      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
401    
402    checkpoint65y (2016/07/29)
403    o pkg/debug (stats):
404      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
405        proc/thread mapping);
406      - fix Min & Max for case where 1 thread has only empty tiles;
407      - use RL variable to count number of wet grid points (with big domain,
408        can be too large to fit into integer*4).
409    o pkg/monitor:
410      - use RL variable to count number of wet grid points (but used only for del2)
411      - add new routine to compute Advective CFL within tracer time-stepping with
412        writing delayed until next monitor output.
413    o pkg/obcs:
414      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
415    o pkg/cal:
416      - calandar-dump: treat case myTime < timePhase in the same way as in
417        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
418    o pkg/dic & seaice:
419      - fix compilation of ocean component for coupled atm+ocn model with
420        seaice dynamics & dic.
421    
422    checkpoint65x (2016/06/11)
423    o add a license text file in main MITgcm tree.
424    o added pkg/bling:
425      - intermediate complexity biogeochemical model
426      - see bling_description.txt for details
427      - verification experiment is global_oce_biogeo_bling (for now, in
428        Contrib/verification_other/); tested daily on baudelaire with gfortran.
429      - add entry point in pkg/gchem for new pkg "bling".
430    o pkg/seaice: fix tensile stength computation
431      - replace global field tensileStrength by tensileStrFac
432      - tensileStrFac can be computed once in S/R seaice_init_varia
433      - fortunately that does not affect any verification results
434    
435    checkpoint65w (2016/05/12)
436    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
437         with ECCO_CTRL_DEPRECATED defined
438    o verification/global_ocean.cs32x15:
439      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
440        with "selectNHfreeSurf=1".
441    o model/src (non-hydrostatic free-surface):
442      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
443        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
444      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
445        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
446        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
447        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
448      - Update output (changes at machine truncation level) of verification exp:
449        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
450        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
451    o pkg/seaice: ITD code
452      - fix picking up from a single category model by initialising
453        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
454      - split a long warning message in seaice_check_pickup.F into two lines,
455        because NEC SX-ACE cannot deal with the long line.
456    o model/src:
457      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
458    o pkg/seaice:
459      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
460    o pkg/seaice:
461      - add basal stress as parameterisation for grounding ice
462        following Lemieux et al. (2015)
463      - turn on by setting new parameter SEAICEbasalDragK2 to a value
464        larger than 0. Lemieux et al. (2015) recommend 15.
465      - The adjoint complains with extra recomputations so there is also a
466        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
467        order to postpone the problem
468      - compile the new code in lab_sea
469    o verification/halfpipe_streamice:
470      - update both TAF and OpenAD adm output (machine truncation differences)
471    
472    checkpoint65v (2016/04/08)
473    o verification/advect_xz:
474      - increase overlap size from 3 to 4 and add new secondary test for PQM
475        advection scheme (with mono & wino limiter).
476      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
477    o model/src:
478      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
479        added phi0Ref) to set vertical axis origin and phiRef origin;
480        keep Ro_SeaLevel for backward compatibility (with a warning).
481       According to coordinate and fluid type:
482        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
483        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
484        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
485        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
486      - remove Ro_SeaLevel from ATM experiment parameter files;
487      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
488        complement; update output.txt (changes at machine truncation level).
489    o pkg/seaice/seaice_evp.F
490      - simplify computation of deltaZ and zetaZ to simple averaging following
491        Bouillon et al. (2013). This removes a lot of code, but also changes
492        verification experiment lab_sea.hb87 -> updated
493    
494    checkpoint65u (2016/03/14)
495    o pkg/generic_advdiff:
496      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
497        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
498        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
499        testing and not for actual use.
500    o model/src:
501      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
502        origin r = rF(1);
503      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
504        in EOS for height coordinate: enable to include NH Pressure or to use
505        more accurate pressure vertical profile; options not linked to EOS type
506        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
507      - start to implement variable gravity (along vertical): for now, only with
508        z-coords (not even z*).
509      - add Ideal Gas equation of state for height coordinate.
510      - update OpenAD output (affected at machine truncation level) of exp:
511        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
512    o pkg/exf:
513      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
514        of exf interpolation (before any rescaling, rotation or interpolation
515        to velocity point) for each field that gets loaded from file. This option
516        identically mimics the input file organization (e.g. record numbers in year
517        by year input files) besides the change in horizontal grid.
518      - add rotateStressOnAgrid run-time switch so that wind stress fields
519        can be provided on the A-grid in zonal/meridional direction and
520        rotated on the fly. This only applies to the case when the exf
521        interpolation is off and rotateStressOnAgrid is false by default.
522    o model/src:
523      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
524        it's also used with pkg/atm_phys) and add few more parameters (but still
525        inactive, src code yet to come)
526    
527    checkpoint65t (2016/02/10)
528    o pkg/atm_phys:
529      - from Ruth Geen: add optical depth dependence on CO2 concentration.
530    o model/src:
531      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
532        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
533        Update output of exp. deep_anelastic (changes at truncation level).
534    o tools:
535      - add a hack in "remove_comments_sed" (used only with TAF) for recent
536        version of OpenMPI (shipped with FC.23): comment out the new header
537        file "mpif-sizeof.h" which causes problems to TAF.
538    o pkg/seaice:
539      - change the termination criterion so that maxits (SEAICElinearIterMax)
540        has an effect
541      - unify iteration parameters for implicit solvers (JFNK and Picard)
542        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
543        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
544        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
545        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
546        SEAICEnonLinTol     replaces JFNKgamma_nonlin
547      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
548      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
549        use with SEAICEuseKrylov
550    o pkg/seaice/seaice_lsr.F
551        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
552        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
553        an effect.
554    o pkg/seaice: add two new parameters
555      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
556        parameter is not in any namelist)
557      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
558        a preconditioner for the non-linear Newton iteration of the JFNK
559        solver
560    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
561      affects some experiments at truncation level:
562      - global_ocean.cs32x15.icedyn (11 digits),
563      - global_ocean.cs32x15.seaice (11 digits),
564      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
565      - also update global_ocean.cs32x15 adjoint and tangent-linear results
566    o pkg/salt_plume & pkg/thsice:
567      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
568        connect salt_plume flux to ATM-OCN coupling pkgs interface:
569       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
570         export to coupler interface) even without compiling pkg/salt_plume ;
571       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
572         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
573    o pkg/dic:
574      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
575        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
576        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
577      - move also update with values from ATM-OCN Coupler in the same new S/R
578        (previously done in ocn_apply_import.F).
579    o tools/adjoint_options:
580      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
581        has been changed on Jan 14, 2016.
582    o pkg/ggl90:
583      - add alternative discretisation of vertical shear (off by default), to
584        compute the mean (@ grid-cell center) of vertical shear compon instead of
585        vertical shear of mean flow (@ grid-cell center).
586      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
587        results on adjacent faces of cubed-sphere grids; this fix the restart.
588    o pkg/atm_compon_interf:
589      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
590        pass last value, stored directly before export to CPL ;
591        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
592      - remove atmSLPr from pickup files (no longer needed for restart)
593    
594    checkpoint65s (2016/01/13)
595    o eesupp & genmake2:
596       - first check for Function ETIME and, if it fails, then check for subroutine
597         ETIME and consistent output; use the appropriate version in timers.F
598    o model/src:
599      - to check restart test, add option to apply EXCH to U,V earlier, just before
600        integr_continuity; turned off by default.
601    o pkg/dic:
602      - remove CPP option USE_ATMOSCO2 (not needed)
603    o tools/tst_2+2:
604      - try to ignore difference between +0 and -0 in binary file, causing test
605        to fail for no good reason.
606    o eesupp & genmake2:
607      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
608        but also check (in genmake2) that test runs and returns meaningful results.
609    o coupler pkgs:
610      Finish implementation of optionally-exchanged variable switches (started on
611       Nov 12) with addition of few more exchanged fields, including 2-way exchange
612       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
613       advection in OCN component; this requires sequential coupling.
614      coupler (pkg/atm_ocn_coupler):
615      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
616        routines (useful for debug).
617      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
618         flux, DIC fields) if corresponding switch is ON.
619      - add option to export RunOff to OCN (to use for DIC river input)
620      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
621      components (pkg/atm_ & ocn_compon_interf):
622      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
623        optionally exchanged fields; add a check & stop in cpl_readparms.F.
624        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
625        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
626      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
627        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
628      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
629      - hold in common block coupler optionally-exchanged variable switch
630        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
631      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
632        this is intended to replace the OCN cplFldtave.* output files (not updated
633        to contain new additional exchanged fields).
634    o pkg/dic:
635      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
636    o pkg/thsice:
637      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
638        and writing of thsice pickup files.
639    o pkg/atm_compon_interf:
640      - move all field individual export-call out of cpl_export_import_data.F
641        into new S/R ATM_EXPORT_FIELDS
642    o pkg/atm_compon_interf:
643      - store state variables (for now, only thSIce fields) just before beeing
644        exported (in cpl_export_import_data.F, like on ocean side) instead of from
645        atm_store_my_data.F like all exported fluxes.
646      - new version of pickup_cpl: write field names into meta file and read meta
647        file to find field postion in pickup. Also only write/read fields meeded for
648        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
649    o pkg/dic:
650      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
651    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
652        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
653        value can be from domain [0,1] to average between the two methods
654    o pkg/atm_phys:
655      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
656        hold fixed in time).
657    
658    checkpoint65r (2015/12/21)
659    o pkg/seaice:
660        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
661        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
662    o pkg/seaice:
663      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
664        when SEAICEscaleSurfStress=.TRUE.,
665      - apply areaW and areaS in S/R seaice_calc_lhs
666    o pkg/atm_phys:
667      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
668        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
669        for individual contribution (convection, LSC cond, radiation)
670      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
671        information); activated with: solar_exponent=0. and wv_exponent=-1.
672    o pkg/ggl90:
673      - within IDEMIX add upper limit for horizontal group velocity to
674        avoid instability problems in the explicit horizontal diffusion term for
675        long time steps or high resolution
676    o pkg/diagnostics:
677      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
678        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
679    o testreport:
680      - remove "-v" (verbose option) in default mpirun command.
681    o pkg/seaice/seaice_growth:
682      - catch potential division by zero in ITD code, does not change
683        verification results
684    o pkg/ecco:
685      - retire old codes to the Attic. The calls to retired functions are
686        left in a commented form in case they ever need to be re-activated.
687      - ecco_check.F: issue warning if any old CPP option is
688        defined that corresponds to retired codes -- then stop.
689    o pkg/atm_compon_interf:
690      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
691        coupler: use last time-step value instead of average over cplSendFrq_iter
692        time-step, similar to what is done for seaIceMass.
693        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
694    o eesupp & genmake2:
695      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
696        <= remove until a fix is found for some ifort version on ia32 machine.
697    o pkg/seaice/seaice_evp:
698      - refine residual computation
699    
700    checkpoint65q (2015/11/18)
701    o pkg/seaice/seaice_evp:
702      - fix residual computations so that they no longer affect the actual
703        simulation code
704      - fix seaice_readparams to be able to actually set new parameters
705        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
706    o model/src:
707      - fix wrong truncation (single prec) from "FLOAT" function in expressions
708        like: deltaT*FLOAT(myIter) when myIter is large:
709         a) replaced by DFLOAT (if not seen by TAF);
710         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
711    o pkg/aim_v23:
712      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
713        when pickupSuff is set ; do write rolling pickups + at the end of the run.
714    o pkg/atm_ocn_coupler + ocn_compon_interf:
715      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
716        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
717        add corresponding call in DO_OCEANIC_PHYS.
718    o coupler pkgs:
719      Start a new way to set-up optionally-exchanged variables (previously, only
720       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
721       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
722       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
723       compononent param default can be set accordingly).
724      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
725       but rather applies to a group a fields (going both ways like for DIC)
726       and corresponds to an option of coupling config.
727      coupler (pkg/atm_ocn_coupler):
728      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
729        and read namelist directly (without eessup S/R calls) instead of
730        in the very un-flexible old way, 1 param per line, in fixed order;
731      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
732        cleanly in CPL_CHECK_CPLCONFIG
733      - add new coupling-exchange selectors (some not yet active) including
734        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
735                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
736      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
737        component ; called directly from coupler.F, after comp. registrations;
738      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
739         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
740          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
741      components (pkg/atm_ & ocn_compon_interf):
742      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
743        CPP header file in all pkg source files.
744      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
745        ATM/OCN_CHECK_CPLCONFIG;
746      - add error-counter to track errors (e.g., in "data.cpl") and to stop
747        cleanly in ATM/OCN_CHECK_CPLCONFIG;
748      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
749        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
750        before PACKAGES_READPARMS;
751      verification/cpl_aim+ocn/:
752      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
753        "data.cpl" for coupler (in input_cpl).
754    o eesupp/inc:
755      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
756        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
757        to always cumulate tile local-sum in the same order (still uses
758        MPI_Allreduce like standard code).
759      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
760        that are now identical to standard version (in eesupp/inc).
761    o pkg/shelfice:
762      - add SHELFICETransCoeffTFile for initializing spatially varying
763        heat and salt transfer coefficients
764    o pkg/atm_compon_interf & ocn_compon_interf:
765      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
766        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
767      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
768    o pkg/atm_ocn_coupler:
769      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
770    o pkg/rbcs:
771      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
772        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
773      - add a short report (to STDOUT) about RBCS-mask settings.
774    
775    checkpoint65p (2015/10/23)
776    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
777        there is no adjoint test for EVP, we don't know what it does to the adjoint
778        solution, but at least there are no more recomputation warnings left
779    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
780        a chance of giving the same results as a fully converged VP (JFNK) solver
781    o tools/adjoint_options/adjoint_diva:
782      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
783    o pkg/streamice:
784      - spotted bug in streamice_driving_stress using dyG where should have been dxG
785    o pkg/exf:
786      - remove STOP statement that prevented to use wind or (wind-)stress
787        interpolation for constant-in-time forcing fields (wind/stress period = 0).
788    o pkg/seaice:
789      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
790        5 additionals 2D fields and 6 new store directives
791      - change logic in seaice_readparms.F: EVP code can now be turned on in
792        various ways, setting SEAICE_deltaTev is no longer required,
793        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
794        or SEAICEaEVPcoeff
795    o pkg/shelfice/shelfice_thermodynamics.F
796      - redefining uLoc/vLoc to u/v, instead of 2u/v
797    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
798      - this is an intermediate state of a truely converging EVP that has
799        the potential of outperforming implicit VP methods, I do not recommend
800        using it yet.
801      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
802        and all parameters are hardwired
803      - for convergence it still requires very smooth regularisations, that means,
804        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
805        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
806        specific averaging appears to be required, still subject to tuning
807      - still needs cleaning and I need to turn parameter into runtime parameters
808      - add code to compute and print residuals of iteration, compile with
809        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
810    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
811      that entered with r1.54 on Sep04, 2015, -> update results
812    
813    checkpoint65o (2015/09/14)
814    o pkg/mom_vecinv & mom_common:
815      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
816        called from there.
817      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
818        allows to use Vector-Invariant form in deep atmos and anelastic formulation
819    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
820      and Koenig-Beatty+Holland (2012)
821      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
822      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
823      - requires an extra input argument for S/R seaice_calc_viscosities
824      - tensileStrength's depth dependence is different from Itkin et al. (2015)
825        (to be changed and played with, for now exponential)
826    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
827      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
828        by AREA according to Connelly et al. (2004), JPO.
829      - For EVP and the LSR solver, the implicit part of the drag term is
830        the only non-zero term in the denominator when there is no ice (which
831        prevented running the model with zero ice-ocean drag). If
832        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
833        (or zero main diagonals BU/BV) which need to be caught. A practical
834        consequence is that for open water, the momentum equation reduce
835        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
836        they happen to be zero, often leading to a non-zero solution over
837        open water.
838    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
839        efficient EVP method.
840      - introduce area-weighted averages for e12 (analogously to
841        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
842        remain, but also changing the order of terms in the previous average
843        changed the results as much) -> update experiment
844      - add SEAICE_DELTA_SMOOTHREG code
845      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
846        TEM-code
847      - adjust loop bounds so that only required fields are computed
848      - add new averaging code for zetaZ/deltaZ (again similar to
849        seaice_calc_viscosities.F), inactive by default for now (will change
850        results again), but will replace old code eventually
851    o eesupp/src:
852      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
853        to always cumulate tile local-sum in the same order
854        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
855        Still uses MPI_Allreduce (like standard code) but on array of tiles
856        and should be faster than GLOBAL_SUM_SEND_RECV code.
857      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
858        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
859      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
860         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
861         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
862         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
863         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
864    
865    checkpoint65n (2015/07/29)
866    o pkg/thsice:
867      - add a warning when used with pkg/aim but without updating SST
868        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
869    o pkg/offline:
870      - change where Offline-Fields are loaded, from load_fields_driver.F to
871        directly within FORWARD_STEP, just after updating iter number and time;
872      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
873        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
874       These changes allow:
875        a) to recover exactly on-line results using deltaToffline=deltaTClock,
876        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
877        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
878        time-step, both with GM & KPP files and with recomputing these fields;
879        b) no needs to switch on staggerTimeStep anymore;
880        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
881      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
882    o pkg/offline:
883      - change (rarely used) offset-iteration parameter to an offset time (in s):
884        can easily recover previous offset-iter effect by setting offset-time
885        (offlineTimeOffset) to offset-iter x deltaToffline;
886      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
887        in KPP as part of surface buoyancy forcing) in offline run.
888      - fix ptracers KPP non-local term in the case where KPP is re-computed.
889    o OpenAD
890      - Adding preliminary ggl90 test to OpenAD verification.
891        Config. with ggl90 currently diverges after 64 time steps
892        so will need more work to become more stable
893      - Adding preliminary kpp test to OpenAD verification.
894        required small tweakes in kpp_routines.F
895      - Merge and update from Krishna Narayanan's contrib area:
896        * Add one variable for preliminary OpenAD DIVA
897        * Add replacement time-stepping for OpenAD DIVA
898        * genmake2 flag -diva (but only for OpenAD; preliminary)
899        * required modifs for OAD_support
900        successful preliminary test for tutorial_global_oce_biogeo/
901    o pkg/seaice:
902      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
903      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
904        delta with a smooth function in s/r seaice_calc_viscosity
905        (no effect on EVP)
906      - rename local suffix "sqr" into "sq" for more consistent variable names
907    o pkg/seaice:
908        add new parameter SEAICE_deltaMin that is used ***only***
909        for regularizing Delta (and nothing else, like the parameter
910        which is also used for all sorts of things SEAICE_EPS).
911        Defaults to SEAICE_EPS for backward compatibility only.
912    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
913        the wrong key by inialising it before use -> fixes a recomputation
914        problem but does not fix the gradient
915    o pkg/layers:
916      - move resetting of flux arrays to outside the iLa loop
917        (this caused layers_diapycnal to not work with more than one layer coord.)
918      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
919    o pkg/layers:
920      - remove from common block 3D layers fields (used to diagnose transport
921        in tracer coords) and declare them as local arrays in layers_calc.F
922    o pkg/seaice:
923      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
924        in lab_sea forward experiment (changes results -> updated)
925      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
926    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
927       computations; for SEAICE_VECTORIZE_LSR
928      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
929        sweep to the outside,
930      - remove store directives and add "CADJ loop sequential" directives
931        in analogy to model/src/solve_tridiagonal.F
932      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
933        boundaries to yield more readable code. This has also the charming side
934        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
935        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
936        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
937        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
938        an additional option)
939       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
940       but the adjoint gradients (which are affected by this change) still explode.
941    o coupler (atm & ocn _compon_interf):
942      - avoid using Exch2 IO mapping if not suitable.
943    
944    checkpoint65m (2015/06/15)
945    o pkg/layers:
946      - clean-up old parameters setting (from Sep 2012):
947        + remove old parameters setting from common block (declared locally);
948        + stop if any old parameter is mixed with new parameters;
949        + check for valid or consistent parameter setting (e.g., layers_name)
950      - check that layers_bounds for Pot.Density are in the right range;
951        this is supposed to catch un-updated setting after recently shifting
952        potential density field "prho" by -1000 (now in "sigma" scale).
953    o pkg/layers:
954      - Added missing call to layers_fill for keeping track of tottend in
955        pkg/diagnostics/diagnostics_fill_state.F
956    o pkg/layers:
957      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
958        of diapycnal fluxes
959    o pkg/layers:
960      - reverted changes to interpolation to previous treatment; there
961        was never actually a problem
962    o pkg/layers:
963      - fix interpolation of layers tracers in the presence of partial cells
964      - add lots of new functionality to compute water mass transformation
965        (enabled by CPP flag LAYERS_THERMODYNAMICS)
966      - add new calls from main code (diags_oceanic_surf_flux.F,
967        thermodynamics.F, impldiff.F) and gad to save the necessary fields
968        for layers_thermodynamics calculations
969    o pkg/ptracers:
970      - add capability of stepping a passive tracer forward without advection
971        by setting PTRACERS_advScheme to 0.
972    o pkg/diagnostics:
973      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
974    o pkg/layers:
975      - shift potential density field "prho" by -1000 for density layer averaging so
976        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
977        Note that density bin boundaries (layers_bounds in data.layers) have
978        to be set accordingly (i.e., shifted, in sigma scale).
979    o pkg/layers:
980      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
981      - fix calculation of layer non-weighted velocity and layer probability
982      - add diagnostics for pot.density used for layer averaging
983    o pkg/seaice:
984      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
985        positiveness, modify a few comments and improve variable names,
986      - the changed computation of deltaC affects most seaice-related
987        experiments at the truncation level.
988        seaice_itd.thermo is affected by far the most, with
989        only 7 digits of agreement remaining; update experiments.
990    
991    checkpoint65l (2015/05/04)
992    o pkg/shelfice:
993      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
994        factor drKp1 to zero where it is negative (ie. do not use
995        SHELFICEBoundaryLayer if hFacC>1)
996      - the same for factor drLoc in shelfice_forcing.F
997    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
998        with modules in ptracers, when using testreport option "-small_f"
999    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
1000      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
1001    o verification/testreport
1002      - add new option -small_f
1003        with this option testreport first makes the target small_f (*.f files)
1004        before running make (all). This is useful for explicit inlining when
1005        all sources need to be full available.
1006    o pkg/exf/exf_interp.F:
1007        remove previous changes related to reverse (decreasing) input grids latitude
1008    
1009    checkpoint65k (2015/04/01)
1010    o pkg/ecco:
1011        fix missing cosphi initialization; use eccoiter in place of optimcycle;
1012        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1013        instead of active read/write
1014    o pkg/ctrl:
1015        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
1016        instead of active read/write.
1017    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
1018        return if .NOT.useAUTODIFF
1019    o pkg/seaice: add CPP brackets (cost function related).
1020    o model/src:
1021        add useAUTODIFF run time switch.
1022    o pkg/exf/exf_interp.F:
1023        add code to allow input grids with latitude starting in the north (i.e. when
1024        j=1 corresponds to northern edge of field); modify global_with_exf to test
1025        this feature.
1026    o verification/testreport:
1027      - replace "grep -A3" with POSIX conformal sed command, because there are
1028        implementations of grep that cannot do contextual searches
1029      - replace "cat -n" by "nl" (two occurrences), because not all implementations
1030        of "cat" have the option "-n"
1031    o model/src:
1032        add new file gsw_teos10.F that contains 3 functions, more or less a copy
1033        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
1034        convert from conservative to potential temperature. For now they are not
1035        called anywhere.
1036    o pkg/ggl90: make "useIDEMIX" useful
1037      - re-organize code in s/r ggl90_calc a little to move computations that
1038        are different for idemix into separate loops (changes verification
1039        experiment idemix at truncation level, 12 digits remain -> updated)
1040      - requires 2 new 2D fields KappaM, verticalShear
1041      - make hFacI and recip_hFacI local 3D variables that are passed to
1042        s/r ggl90_idemix
1043      - fix and improve some comments
1044    
1045    checkpoint65j (2015/02/25)
1046    o pkg/openad
1047      - synchronize seawater.F with version in model/src: replace routine
1048        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1049    o pkg/mnc:
1050      - change default value of pickup_read/write_mnc params to FALSE
1051        (since few features are missing in reading MNC pickup files).
1052    o model/src:
1053      - change default (background) vertical diffusivity for salt to be the
1054        temperature (background) vertical diffusivity.
1055      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1056        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1057        This makes ptracers default diffusivity (that uses salt diffKr) more
1058        consistent with vertical mixing schemes.
1059    o verification/testreport:
1060      - fix typo in "-pcls" option ;
1061      - put temp files in /tmp (instead of in local dir)
1062      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1063      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1064    o pkg/ggl90 (idemix code):
1065      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1066        global_ocean.90x40x15.idemix
1067    o OpenAD
1068      - enable active file I/O and begin removal of work-around code
1069        for OpenAD for handling control variables (memory vs. active files)
1070      - new CPP options file OPENAD_OPTIONS.h
1071      - revert to genarr2d gradient check for hs94.1x64x5
1072      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1073      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1074    o tools/genmake2:
1075      - add option for an alternative Makefile (from Martin) where multiple
1076        source files are sent to TAF (instead of all in one file).
1077    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1078      - code provided by Carsten Eden as an extension of ggl90
1079      - so far the code is turned on within ggl90 by setting a CPP-flag at
1080        compile time; a runtime flag implementation is not yet complete
1081      - tested in new verification experiment global_ocean.90x40x15.idemix
1082    o verification:
1083      - reduce length of the AD test run by half for experiments
1084        global_ocean.cs32x15 (std + thsice) and isomip
1085      - enable active file I/O for OpenAD, adjust verifications accordingly
1086      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1087    o verification/testreport:
1088      - fix two non-POSIX sed statements so that there are no error messages
1089        on Mac OS X
1090      - replace hostname -s with hostname | sed 's/\..*$//'
1091    o model/src/seawater.F:
1092      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1093        (following the matlab code), which would have avoided the bug caught
1094        by Matt (see below) in the first place
1095    o pkg/shelfice:
1096      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1097        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1098      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1099        ice-shelf case (i.e., within surface level).
1100      - add config summary in shelfice_check.F
1101      - remove global variable recip_SHELFICElatentHeat and replace by a local
1102        variable recip_latentHeat
1103      - introduce diagnostics for friction velocity uStar (in case of
1104        SHELFICEuseGammaFrict)
1105      - change verification experiment isomip.htd:
1106        + start from pickup (as input_ad at nIter0=8640)
1107        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1108        + test SHELFICEuseGammaFrict = .TRUE.
1109        + test SHELFICEadvDiffHeatFlux = .TRUE.
1110    o model/src:
1111      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1112        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1113        update output of experiments global_with_exf.yearly and isomip (all 6).
1114    o pkg/shelfice:
1115      - change setting of kTopC to also be zero where there is no ice-shelf.
1116      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1117        ice-shelf is.
1118      - first attempt to get RealFreshWaterFlux effects: for now, only without
1119        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1120    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1121      for thermodynamic calculations
1122      - because of divisions of the type 7/7 not exactly equal to 1, this change
1123        affects results of some verification experiments by up to 4 digits:
1124        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1125        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1126        adjoint: lab_sea, lab_sea.noseaicedyn
1127        -> updated
1128    
1129    checkpoint65i (2015/01/23)
1130    o model/src:
1131      - change units of frictionHeating field from W to W/m^2
1132      - fix bug in frictional heating from stratospheric drag in
1133        S/R ATM_PHYS_TENDENCY_APPLY_V
1134      - with synchronous time-stepping: move resetting to zero of frictionHeating
1135        field from load_fields_driver.F to thermodynamics.F ;
1136      - add diagnostics for frictional heating.
1137    o model/src & gmredi K3D:
1138      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1139      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1140      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1141        and name in pickup file).
1142      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1143    o model/src:
1144      - move (from ini_forcing.F) initialisation of all arrays in header file
1145        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1146        (since Nov 2012) with option selectAddFluid=1.
1147    o pkg/shelfice:
1148      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1149      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1150    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1151    o pkg/seaice: two new runtime parameters:
1152      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1153        long overdue
1154      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1155        parameterization of tensil stress for fast ice (does not do anything yet)
1156    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1157        for LSR: move checking overlaps out of JFNK-if-block
1158    o pkg/atm_phys:
1159      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1160        new S/R ATM_PHYS_DYN2PHYS.
1161      - fix level height for Linear Free-Surf case (to be consistent with
1162        fixed-in-time pressure levels).
1163    o pkg/mom_common (bottomdrag):
1164      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1165        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1166        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1167    o pkg/shelfice (u/v_drag):
1168      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1169      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1170        (now similar to shelfice_u_drag.F)
1171      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1172        from mom_vecinv.F (similar to mom_fluxform calls).
1173    o pkg/mom_common (bottomdrag):
1174      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1175      - add options for alternative discretisation of velocity norm in quadratic
1176        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1177        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1178        improves when averaging only the other component (e.g. vVel for U bottom
1179        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1180      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1181        friction (no-slip BC) thus getting the true distance from the bottom;
1182        off by default since this also reduces model stability (explicit bottom
1183        friction). Changes produce different machine truncation with linear-drag
1184        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1185        front_relax (bvp & mxl, 10 & 11 digits).
1186    o model/src & mom pkgs:
1187      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1188        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1189      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1190        just copy level Nr value to level Nr+1.
1191    o doc:
1192      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1193    o pkg/shelfice:
1194      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1195        SHELFICE.h: move array shelficemass to init_varia, initialise
1196        from array shelficemassinit, which is set in init_fixed and
1197        has option to be set from file; introduce array
1198        shelficeMassDynTend array, set thru file in init_fixed
1199      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1200        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1201        pkg/streamice
1202      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1203        SHELFICEMassStepping = .true.
1204      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1205    
1206    checkpoint65h (2014/12/17)
1207    o verification/global_ocean.90x40x15, global_ocean_ebm:
1208      - update to generic controls.
1209    o pkg/ctrl:
1210      - ctrl_map_ini_genarr.F: test for igen>0
1211      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1212      - move gentim2d part of ctrl_map_ini_genarr.F to
1213        new separate routine : ctrl_map_ini_gentim2d.F
1214      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1215        add time variable weights and cyclic controls (time mean,
1216        seasonal cycle, etc) capabilities to gentim2d
1217    o pkg/ecco:
1218      - move reading of error, conversion to weights from
1219        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1220    o global_oce_llc90, cs32:
1221      - activte sbo.
1222      - CTRL_SIZE.h : add maxCtrlProc.
1223      - activate the new genctrl capabilities.
1224      - update following reorganization of global_oce_input_fields.tar.gz  
1225    o pkg/ctrl/ctrl_ad_diff.list:
1226      - add missing ctrl_init_rec.f
1227    o tools/OAD_support/keepOriginal:
1228      - add ctrl_init_rec.F
1229    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1230      - avoid recomputations of xx_gentim2d_dummy.
1231    o momentum diagnostics:
1232      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1233        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1234    o pkg/seaice/seaice_lsr.F:
1235      - fix computation of BU/BV, make sure they are non-zero, only necessary
1236        for cubed sphere exchanges and SEAICE_OLx/y>0.
1237        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1238    o verification/global_ocean.cs32x15/input.seaice
1239      - add test for strong implicit coupling and restricted addtive Schwarz
1240        methods for LSR
1241      - update results/output.seaice.txt
1242    o verification/tutorial_global_oce_biogeo:
1243      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1244        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1245        update output_adm,_oadm,_tlm.txt
1246    o pkg/dic:
1247      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1248      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1249        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1250    o verification/tutorial_global_oce_biogeo:
1251      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1252        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1253        update output_adm,_oadm,_tlm.txt
1254    o eesupp/src:
1255      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1256        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1257    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1258      LSR (following Hutchings et al. 2004)
1259      - introduce zetaZ as a global variable (requires adjustments in
1260        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1261        in seaice_calc_viscosities.F
1262      - new flag SEAICEuseStrImpCpl (default off)
1263      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1264        momentum equations
1265      - JFNK-solver (preconditioner) adjusted to allow using this method
1266        (where it does not have any positive effect)
1267    o pkg/seaice
1268      - add overlap for restrictive additive Schwartz method also to LSR, but
1269        turn it off by default (because it only seems to work for non-cubed
1270        sphere/llc topologies)
1271    o pkg/autodiff
1272      - add extra exchanges in addummy_in_steppging also for mnc output
1273    o pkg/seaice:
1274      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1275        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1276    o pkg/obcs:
1277      - add option to specify domain-connected piece Id along OB though files
1278        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1279      - modify obcs_diag_balance.F to process each connected-part separately;
1280        exclude OB where Id = 0 but keep the full divergence there (-> constant
1281        Psi along this portion of OB and all inflow derived from grad(Phi))
1282      - add example of OB-conect files in verification/so_box_biogeo/input.
1283    o pkg/diagnostics:
1284      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1285      a) use non zero matrix element across OB and solve for Phi 1 grid point
1286         outside OB (i.e, where tracer OBCS are applied).
1287      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1288         velocity across OB, spread it uniformly along the OB in the RHS.
1289    
1290    checkpoint65g (2014/11/19)
1291    o pkg/diagnostcis:
1292      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1293    o pkg/my82,pp81,kl10:
1294      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1295        field diffKr as background diffusivity to set minimum diffusivity value.
1296    o pkg/seaice:
1297      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1298        Bouillon et al 2013)
1299      - add SEAICE_evpAlpha/Beta to namelist
1300      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1301        involve trivial re-ordering of divisions/multiplications that should not
1302        have any effects, but ... they do change the results of lab_sea.hb87 so
1303        that only 2 digits of agreement remain, in line with the general
1304        instability/fragility of the evp-code. For now, I do not care and just
1305        update the verification experiment
1306    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1307      - remove xx_genarr2d_numsmooth etc
1308      - use xx_genarr2d_preproc etc instead
1309      - carry out smooth_correl2D at initialization stage rather than during
1310        time stepping.
1311      - get smoothOpNb from xx_gentim2d_preproc
1312    o global_oce_cs32 :
1313      - add test of generic ecco capabilities.
1314    o pkg/exf/exf_getsurfacefluxes.F :
1315      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1316    o pkg/ctrl,ecco :
1317      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1318        is defined.
1319    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1320    o model/src:
1321      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1322        diffusivity (background) is specified but ignored.
1323    o verification:
1324      - in testreport, convert hostname to lower case for default output dir name
1325    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1326    o pkg/dic: add modifications from Hajoon:
1327      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1328      - light attenuation: add self-shading effect by climatological Chlorophyll
1329        (read from file).
1330    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1331        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1332    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1333        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1334        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1335        approach where CPP_OPTIONS.h includes an omnipotent
1336        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1337    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1338        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1339    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1340        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1341        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1342    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1343      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1344      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1345      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1346      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1347    o pkg/ctrl,ecco,exf :
1348      - remove variables associated with NON-generic costs,
1349        unless ECCO_CTRL_DEPRECATED is defined.
1350      - remove NON-generic NON-obcs controls,
1351        unless ECCO_CTRL_DEPRECATED is defined.
1352    o pkg/ctrl : added ctrl_local_params.h
1353    o pkg/ecco : added ecco_local_params.h
1354    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1355        experiments, which will progressively be removed once the
1356        experiments are revised to use only generic controls/costs.
1357    
1358    checkpoint65f (2014/10/13)
1359    o pkg/ctrl, ecco, seaice : minor changes in headers
1360    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1361        cost function and control capabilities added since checkpoint65c.
1362    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1363    o pkg/ecco: increase modularity and improve logic
1364      - ecco_toolbox.F (new) : basic operations that are often used,
1365        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1366        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1367      - cost_gencal.F (new) : determine filnames and records.
1368      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1369      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1370        and exploit the above functions leading to more compact code.
1371      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1372      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1373        using_ers, using_gfo, using_mdt is now only defined within gencost)
1374    o pkg/ecco: extend generic cost capabilities
1375      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1376        capabilities via gencost_preproc (+ _c,_i,_r related params),
1377        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1378        gencost_outputlevel arguments to cost_generic
1379      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1380        and active_read, making room for gencost_preproc to take effect.
1381        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1382      - pkg/ecco/cost_generic.F :
1383        compute and store misfit maks*(model-data) in localdif that is
1384        then used in cost and for output, output misfit if outlev.GT.0
1385      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1386        rather gencost_barfile for deciding whether to write barfile
1387      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1388      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1389        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1390      - pkg/ecco/ecco_summary.F : report gencost variables
1391      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1392    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1393  o pkg/ecco: internal re-organization  o pkg/ecco: internal re-organization
1394    - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl    - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1395      (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,      (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1396      mv relevant variables definition from ecco_cost.h to ecco.h,      mv relevant variables definition from ecco_cost.h to ecco.h,
1397      make sure gencost routines only include ecco.h)      make sure gencost routines only include ecco.h)
1398    - throughout : add missing CCP switches, rm unused variables,    - throughout : add missing CCP switches, rm unused variables,
1399      and rm un-necessary CPP switches      and rm un-necessary CPP switches
1400    - throughout gencost routines : replace modelstartdate with    - throughout gencost routines : replace modelstartdate with
1401      gencost_startdate when needed      gencost_startdate when needed
1402    - cost_bp_read.F : use arguments, instead of common blocs    - cost_bp_read.F : use arguments, instead of common blocs
1403      so that it can be used also by (new) cost_gencost_bpv4.F      so that it can be used also by (new) cost_gencost_bpv4.F
1404    - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0    - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1405    - ecco_phys.F : compute etanFull    - ecco_phys.F : compute etanFull
1406    - ecco_readparms.F : rename using_topex as using_tpj, add    - ecco_readparms.F : rename using_topex as using_tpj, add
# Line 332  o pkg/seaice: more clean up Line 1718  o pkg/seaice: more clean up
1718      nearly a factor of 10 (but keep in mind there is mostly seaice code in      nearly a factor of 10 (but keep in mind there is mostly seaice code in
1719      this experiment):      this experiment):
1720      > size mitgcmuv_ad      > size mitgcmuv_ad
1721      text    data        bss     dec        hex        text    data        bss     dec        hex
1722      5100659 1216  220458952  225560827  d71c8fb      5100659 1216  220458952  225560827  d71c8fb
1723      5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)      5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1724      but only a moderate increase of 36% for global_ocean.cs32x15:      but only a moderate increase of 36% for global_ocean.cs32x15:
1725      text    data        bss     dec        hex      text    data        bss     dec        hex

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