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revision 1.2011 by mlosch, Wed Jun 25 10:57:05 2014 UTC revision 1.2261 by jmc, Fri Jul 29 19:49:59 2016 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint65y (2016/07/29)
8    o pkg/debug (stats):
9      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
10        proc/thread mapping);
11      - fix Min & Max for case where 1 thread has only empty tiles;
12      - use RL variable to count number of wet grid points (with big domain,
13        can be too large to fit into integer*4).
14    o pkg/monitor:
15      - use RL variable to count number of wet grid points (but used only for del2)
16      - add new routine to compute Advective CFL within tracer time-stepping with
17        writing delayed until next monitor output.
18    o pkg/obcs:
19      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
20    o pkg/dic & seaice:
21      - fix compilation of ocean component for coupled atm+ocn model with
22        seaice dynamics & dic.
23    
24    checkpoint65x (2016/06/11)
25    o add a license text file in main MITgcm tree.
26    o added pkg/bling:
27      - intermediate complexity biogeochemical model
28      - see bling_description.txt for details
29      - verification experiment is global_oce_biogeo_bling (for now, in
30        Contrib/verification_other/); tested daily on baudelaire with gfortran.
31      - add entry point in pkg/gchem for new pkg "bling".
32    o pkg/seaice: fix tensile stength computation
33      - replace global field tensileStrength by tensileStrFac
34      - tensileStrFac can be computed once in S/R seaice_init_varia
35      - fortunately that does not affect any verification results
36    
37    checkpoint65w (2016/05/12)
38    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
39         with ECCO_CTRL_DEPRECATED defined
40    o verification/global_ocean.cs32x15:
41      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
42        with "selectNHfreeSurf=1".
43    o model/src (non-hydrostatic free-surface):
44      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
45        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
46      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
47        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
48        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
49        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
50      - Update output (changes at machine truncation level) of verification exp:
51        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
52        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
53    o pkg/seaice: ITD code
54      - fix picking up from a single category model by initialising
55        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
56      - split a long warning message in seaice_check_pickup.F into two lines,
57        because NEC SX-ACE cannot deal with the long line.
58    o model/src:
59      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
60    o pkg/seaice:
61      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
62    o pkg/seaice:
63      - add basal stress as parameterisation for grounding ice
64        following Lemieux et al. (2015)
65      - turn on by setting new parameter SEAICEbasalDragK2 to a value
66        larger than 0. Lemieux et al. (2015) recommend 15.
67      - The adjoint complains with extra recomputations so there is also a
68        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
69        order to postpone the problem
70      - compile the new code in lab_sea
71    o verification/halfpipe_streamice:
72      - update both TAF and OpenAD adm output (machine truncation differences)
73    
74    checkpoint65v (2016/04/08)
75    o verification/advect_xz:
76      - increase overlap size from 3 to 4 and add new secondary test for PQM
77        advection scheme (with mono & wino limiter).
78      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
79    o model/src:
80      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
81        added phi0Ref) to set vertical axis origin and phiRef origin;
82        keep Ro_SeaLevel for backward compatibility (with a warning).
83       According to coordinate and fluid type:
84        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
85        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
86        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
87        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
88      - remove Ro_SeaLevel from ATM experiment parameter files;
89      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
90        complement; update output.txt (changes at machine truncation level).
91    o pkg/seaice/seaice_evp.F
92      - simplify computation of deltaZ and zetaZ to simple averaging following
93        Bouillon et al. (2013). This removes a lot of code, but also changes
94        verification experiment lab_sea.hb87 -> updated
95    
96    checkpoint65u (2016/03/14)
97    o pkg/generic_advdiff:
98      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
99        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
100        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
101        testing and not for actual use.
102    o model/src:
103      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
104        origin r = rF(1);
105      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
106        in EOS for height coordinate: enable to include NH Pressure or to use
107        more accurate pressure vertical profile; options not linked to EOS type
108        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
109      - start to implement variable gravity (along vertical): for now, only with
110        z-coords (not even z*).
111      - add Ideal Gas equation of state for height coordinate.
112      - update OpenAD output (affected at machine truncation level) of exp:
113        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
114    o pkg/exf:
115      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
116        of exf interpolation (before any rescaling, rotation or interpolation
117        to velocity point) for each field that gets loaded from file. This option
118        identically mimics the input file organization (e.g. record numbers in year
119        by year input files) besides the change in horizontal grid.
120      - add rotateStressOnAgrid run-time switch so that wind stress fields
121        can be provided on the A-grid in zonal/meridional direction and
122        rotated on the fly. This only applies to the case when the exf
123        interpolation is off and rotateStressOnAgrid is false by default.
124    o model/src:
125      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
126        it's also used with pkg/atm_phys) and add few more parameters (but still
127        inactive, src code yet to come)
128    
129    checkpoint65t (2016/02/10)
130    o pkg/atm_phys:
131      - from Ruth Geen: add optical depth dependence on CO2 concentration.
132    o model/src:
133      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
134        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
135        Update output of exp. deep_anelastic (changes at truncation level).
136    o tools:
137      - add a hack in "remove_comments_sed" (used only with TAF) for recent
138        version of OpenMPI (shipped with FC.23): comment out the new header
139        file "mpif-sizeof.h" which causes problems to TAF.
140    o pkg/seaice:
141      - change the termination criterion so that maxits (SEAICElinearIterMax)
142        has an effect
143      - unify iteration parameters for implicit solvers (JFNK and Picard)
144        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
145        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
146        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
147        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
148        SEAICEnonLinTol     replaces JFNKgamma_nonlin
149      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
150      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
151        use with SEAICEuseKrylov
152    o pkg/seaice/seaice_lsr.F
153        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
154        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
155        an effect.
156    o pkg/seaice: add two new parameters
157      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
158        parameter is not in any namelist)
159      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
160        a preconditioner for the non-linear Newton iteration of the JFNK
161        solver
162    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
163      affects some experiments at truncation level:
164      - global_ocean.cs32x15.icedyn (11 digits),
165      - global_ocean.cs32x15.seaice (11 digits),
166      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
167      - also update global_ocean.cs32x15 adjoint and tangent-linear results
168    o pkg/salt_plume & pkg/thsice:
169      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
170        connect salt_plume flux to ATM-OCN coupling pkgs interface:
171       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
172         export to coupler interface) even without compiling pkg/salt_plume ;
173       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
174         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
175    o pkg/dic:
176      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
177        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
178        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
179      - move also update with values from ATM-OCN Coupler in the same new S/R
180        (previously done in ocn_apply_import.F).
181    o tools/adjoint_options:
182      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
183        has been changed on Jan 14, 2016.
184    o pkg/ggl90:
185      - add alternative discretisation of vertical shear (off by default), to
186        compute the mean (@ grid-cell center) of vertical shear compon instead of
187        vertical shear of mean flow (@ grid-cell center).
188      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
189        results on adjacent faces of cubed-sphere grids; this fix the restart.
190    o pkg/atm_compon_interf:
191      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
192        pass last value, stored directly before export to CPL ;
193        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
194      - remove atmSLPr from pickup files (no longer needed for restart)
195    
196    checkpoint65s (2016/01/13)
197    o eesupp & genmake2:
198       - first check for Function ETIME and, if it fails, then check for subroutine
199         ETIME and consistent output; use the appropriate version in timers.F
200    o model/src:
201      - to check restart test, add option to apply EXCH to U,V earlier, just before
202        integr_continuity; turned off by default.
203    o pkg/dic:
204      - remove CPP option USE_ATMOSCO2 (not needed)
205    o tools/tst_2+2:
206      - try to ignore difference between +0 and -0 in binary file, causing test
207        to fail for no good reason.
208    o eesupp & genmake2:
209      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
210        but also check (in genmake2) that test runs and returns meaningful results.
211    o coupler pkgs:
212      Finish implementation of optionally-exchanged variable switches (started on
213       Nov 12) with addition of few more exchanged fields, including 2-way exchange
214       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
215       advection in OCN component; this requires sequential coupling.
216      coupler (pkg/atm_ocn_coupler):
217      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
218        routines (useful for debug).
219      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
220         flux, DIC fields) if corresponding switch is ON.
221      - add option to export RunOff to OCN (to use for DIC river input)
222      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
223      components (pkg/atm_ & ocn_compon_interf):
224      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
225        optionally exchanged fields; add a check & stop in cpl_readparms.F.
226        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
227        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
228      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
229        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
230      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
231      - hold in common block coupler optionally-exchanged variable switch
232        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
233      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
234        this is intended to replace the OCN cplFldtave.* output files (not updated
235        to contain new additional exchanged fields).
236    o pkg/dic:
237      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
238    o pkg/thsice:
239      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
240        and writing of thsice pickup files.
241    o pkg/atm_compon_interf:
242      - move all field individual export-call out of cpl_export_import_data.F
243        into new S/R ATM_EXPORT_FIELDS
244    o pkg/atm_compon_interf:
245      - store state variables (for now, only thSIce fields) just before beeing
246        exported (in cpl_export_import_data.F, like on ocean side) instead of from
247        atm_store_my_data.F like all exported fluxes.
248      - new version of pickup_cpl: write field names into meta file and read meta
249        file to find field postion in pickup. Also only write/read fields meeded for
250        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
251    o pkg/dic:
252      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
253    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
254        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
255        value can be from domain [0,1] to average between the two methods
256    o pkg/atm_phys:
257      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
258        hold fixed in time).
259    
260    checkpoint65r (2015/12/21)
261    o pkg/seaice:
262        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
263        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
264    o pkg/seaice:
265      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
266        when SEAICEscaleSurfStress=.TRUE.,
267      - apply areaW and areaS in S/R seaice_calc_lhs
268    o pkg/atm_phys:
269      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
270        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
271        for individual contribution (convection, LSC cond, radiation)
272      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
273        information); activated with: solar_exponent=0. and wv_exponent=-1.
274    o pkg/ggl90:
275      - within IDEMIX add upper limit for horizontal group velocity to
276        avoid instability problems in the explicit horizontal diffusion term for
277        long time steps or high resolution
278    o pkg/diagnostics:
279      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
280        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
281    o testreport:
282      - remove "-v" (verbose option) in default mpirun command.
283    o pkg/seaice/seaice_growth:
284      - catch potential division by zero in ITD code, does not change
285        verification results
286    o pkg/ecco:
287      - retire old codes to the Attic. The calls to retired functions are
288        left in a commented form in case they ever need to be re-activated.
289      - ecco_check.F: issue warning if any old CPP option is
290        defined that corresponds to retired codes -- then stop.
291    o pkg/atm_compon_interf:
292      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
293        coupler: use last time-step value instead of average over cplSendFrq_iter
294        time-step, similar to what is done for seaIceMass.
295        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
296    o eesupp & genmake2:
297      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
298        <= remove until a fix is found for some ifort version on ia32 machine.
299    o pkg/seaice/seaice_evp:
300      - refine residual computation
301    
302    checkpoint65q (2015/11/18)
303    o pkg/seaice/seaice_evp:
304      - fix residual computations so that they no longer affect the actual
305        simulation code
306      - fix seaice_readparams to be able to actually set new parameters
307        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
308    o model/src:
309      - fix wrong truncation (single prec) from "FLOAT" function in expressions
310        like: deltaT*FLOAT(myIter) when myIter is large:
311         a) replaced by DFLOAT (if not seen by TAF);
312         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
313    o pkg/aim_v23:
314      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
315        when pickupSuff is set ; do write rolling pickups + at the end of the run.
316    o pkg/atm_ocn_coupler + ocn_compon_interf:
317      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
318        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
319        add corresponding call in DO_OCEANIC_PHYS.
320    o coupler pkgs:
321      Start a new way to set-up optionally-exchanged variables (previously, only
322       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
323       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
324       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
325       compononent param default can be set accordingly).
326      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
327       but rather applies to a group a fields (going both ways like for DIC)
328       and corresponds to an option of coupling config.
329      coupler (pkg/atm_ocn_coupler):
330      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
331        and read namelist directly (without eessup S/R calls) instead of
332        in the very un-flexible old way, 1 param per line, in fixed order;
333      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
334        cleanly in CPL_CHECK_CPLCONFIG
335      - add new coupling-exchange selectors (some not yet active) including
336        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
337                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
338      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
339        component ; called directly from coupler.F, after comp. registrations;
340      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
341         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
342          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
343      components (pkg/atm_ & ocn_compon_interf):
344      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
345        CPP header file in all pkg source files.
346      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
347        ATM/OCN_CHECK_CPLCONFIG;
348      - add error-counter to track errors (e.g., in "data.cpl") and to stop
349        cleanly in ATM/OCN_CHECK_CPLCONFIG;
350      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
351        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
352        before PACKAGES_READPARMS;
353      verification/cpl_aim+ocn/:
354      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
355        "data.cpl" for coupler (in input_cpl).
356    o eesupp/inc:
357      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
358        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
359        to always cumulate tile local-sum in the same order (still uses
360        MPI_Allreduce like standard code).
361      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
362        that are now identical to standard version (in eesupp/inc).
363    o pkg/shelfice:
364      - add SHELFICETransCoeffTFile for initializing spatially varying
365        heat and salt transfer coefficients
366    o pkg/atm_compon_interf & ocn_compon_interf:
367      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
368        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
369      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
370    o pkg/atm_ocn_coupler:
371      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
372    o pkg/rbcs:
373      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
374        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
375      - add a short report (to STDOUT) about RBCS-mask settings.
376    
377    checkpoint65p (2015/10/23)
378    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
379        there is no adjoint test for EVP, we don't know what it does to the adjoint
380        solution, but at least there are no more recomputation warnings left
381    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
382        a chance of giving the same results as a fully converged VP (JFNK) solver
383    o tools/adjoint_options/adjoint_diva:
384      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
385    o pkg/streamice:
386      - spotted bug in streamice_driving_stress using dyG where should have been dxG
387    o pkg/exf:
388      - remove STOP statement that prevented to use wind or (wind-)stress
389        interpolation for constant-in-time forcing fields (wind/stress period = 0).
390    o pkg/seaice:
391      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
392        5 additionals 2D fields and 6 new store directives
393      - change logic in seaice_readparms.F: EVP code can now be turned on in
394        various ways, setting SEAICE_deltaTev is no longer required,
395        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
396        or SEAICEaEVPcoeff
397    o pkg/shelfice/shelfice_thermodynamics.F
398      - redefining uLoc/vLoc to u/v, instead of 2u/v
399    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
400      - this is an intermediate state of a truely converging EVP that has
401        the potential of outperforming implicit VP methods, I do not recommend
402        using it yet.
403      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
404        and all parameters are hardwired
405      - for convergence it still requires very smooth regularisations, that means,
406        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
407        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
408        specific averaging appears to be required, still subject to tuning
409      - still needs cleaning and I need to turn parameter into runtime parameters
410      - add code to compute and print residuals of iteration, compile with
411        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
412    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
413      that entered with r1.54 on Sep04, 2015, -> update results
414    
415    checkpoint65o (2015/09/14)
416    o pkg/mom_vecinv & mom_common:
417      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
418        called from there.
419      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
420        allows to use Vector-Invariant form in deep atmos and anelastic formulation
421    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
422      and Koenig-Beatty+Holland (2012)
423      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
424      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
425      - requires an extra input argument for S/R seaice_calc_viscosities
426      - tensileStrength's depth dependence is different from Itkin et al. (2015)
427        (to be changed and played with, for now exponential)
428    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
429      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
430        by AREA according to Connelly et al. (2004), JPO.
431      - For EVP and the LSR solver, the implicit part of the drag term is
432        the only non-zero term in the denominator when there is no ice (which
433        prevented running the model with zero ice-ocean drag). If
434        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
435        (or zero main diagonals BU/BV) which need to be caught. A practical
436        consequence is that for open water, the momentum equation reduce
437        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
438        they happen to be zero, often leading to a non-zero solution over
439        open water.
440    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
441        efficient EVP method.
442      - introduce area-weighted averages for e12 (analogously to
443        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
444        remain, but also changing the order of terms in the previous average
445        changed the results as much) -> update experiment
446      - add SEAICE_DELTA_SMOOTHREG code
447      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
448        TEM-code
449      - adjust loop bounds so that only required fields are computed
450      - add new averaging code for zetaZ/deltaZ (again similar to
451        seaice_calc_viscosities.F), inactive by default for now (will change
452        results again), but will replace old code eventually
453    o eesupp/src:
454      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
455        to always cumulate tile local-sum in the same order
456        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
457        Still uses MPI_Allreduce (like standard code) but on array of tiles
458        and should be faster than GLOBAL_SUM_SEND_RECV code.
459      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
460        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
461      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
462         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
463         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
464         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
465         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
466    
467    checkpoint65n (2015/07/29)
468    o pkg/thsice:
469      - add a warning when used with pkg/aim but without updating SST
470        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
471    o pkg/offline:
472      - change where Offline-Fields are loaded, from load_fields_driver.F to
473        directly within FORWARD_STEP, just after updating iter number and time;
474      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
475        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
476       These changes allow:
477        a) to recover exactly on-line results using deltaToffline=deltaTClock,
478        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
479        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
480        time-step, both with GM & KPP files and with recomputing these fields;
481        b) no needs to switch on staggerTimeStep anymore;
482        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
483      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
484    o pkg/offline:
485      - change (rarely used) offset-iteration parameter to an offset time (in s):
486        can easily recover previous offset-iter effect by setting offset-time
487        (offlineTimeOffset) to offset-iter x deltaToffline;
488      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
489        in KPP as part of surface buoyancy forcing) in offline run.
490      - fix ptracers KPP non-local term in the case where KPP is re-computed.
491    o OpenAD
492      - Adding preliminary ggl90 test to OpenAD verification.
493        Config. with ggl90 currently diverges after 64 time steps
494        so will need more work to become more stable
495      - Adding preliminary kpp test to OpenAD verification.
496        required small tweakes in kpp_routines.F
497      - Merge and update from Krishna Narayanan's contrib area:
498        * Add one variable for preliminary OpenAD DIVA
499        * Add replacement time-stepping for OpenAD DIVA
500        * genmake2 flag -diva (but only for OpenAD; preliminary)
501        * required modifs for OAD_support
502        successful preliminary test for tutorial_global_oce_biogeo/
503    o pkg/seaice:
504      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
505      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
506        delta with a smooth function in s/r seaice_calc_viscosity
507        (no effect on EVP)
508      - rename local suffix "sqr" into "sq" for more consistent variable names
509    o pkg/seaice:
510        add new parameter SEAICE_deltaMin that is used ***only***
511        for regularizing Delta (and nothing else, like the parameter
512        which is also used for all sorts of things SEAICE_EPS).
513        Defaults to SEAICE_EPS for backward compatibility only.
514    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
515        the wrong key by inialising it before use -> fixes a recomputation
516        problem but does not fix the gradient
517    o pkg/layers:
518      - move resetting of flux arrays to outside the iLa loop
519        (this caused layers_diapycnal to not work with more than one layer coord.)
520      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
521    o pkg/layers:
522      - remove from common block 3D layers fields (used to diagnose transport
523        in tracer coords) and declare them as local arrays in layers_calc.F
524    o pkg/seaice:
525      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
526        in lab_sea forward experiment (changes results -> updated)
527      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
528    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
529       computations; for SEAICE_VECTORIZE_LSR
530      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
531        sweep to the outside,
532      - remove store directives and add "CADJ loop sequential" directives
533        in analogy to model/src/solve_tridiagonal.F
534      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
535        boundaries to yield more readable code. This has also the charming side
536        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
537        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
538        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
539        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
540        an additional option)
541       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
542       but the adjoint gradients (which are affected by this change) still explode.
543    o coupler (atm & ocn _compon_interf):
544      - avoid using Exch2 IO mapping if not suitable.
545    
546    checkpoint65m (2015/06/15)
547    o pkg/layers:
548      - clean-up old parameters setting (from Sep 2012):
549        + remove old parameters setting from common block (declared locally);
550        + stop if any old parameter is mixed with new parameters;
551        + check for valid or consistent parameter setting (e.g., layers_name)
552      - check that layers_bounds for Pot.Density are in the right range;
553        this is supposed to catch un-updated setting after recently shifting
554        potential density field "prho" by -1000 (now in "sigma" scale).
555    o pkg/layers:
556      - Added missing call to layers_fill for keeping track of tottend in
557        pkg/diagnostics/diagnostics_fill_state.F
558    o pkg/layers:
559      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
560        of diapycnal fluxes
561    o pkg/layers:
562      - reverted changes to interpolation to previous treatment; there
563        was never actually a problem
564    o pkg/layers:
565      - fix interpolation of layers tracers in the presence of partial cells
566      - add lots of new functionality to compute water mass transformation
567        (enabled by CPP flag LAYERS_THERMODYNAMICS)
568      - add new calls from main code (diags_oceanic_surf_flux.F,
569        thermodynamics.F, impldiff.F) and gad to save the necessary fields
570        for layers_thermodynamics calculations
571    o pkg/ptracers:
572      - add capability of stepping a passive tracer forward without advection
573        by setting PTRACERS_advScheme to 0.
574    o pkg/diagnostics:
575      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
576    o pkg/layers:
577      - shift potential density field "prho" by -1000 for density layer averaging so
578        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
579        Note that density bin boundaries (layers_bounds in data.layers) have
580        to be set accordingly (i.e., shifted, in sigma scale).
581    o pkg/layers:
582      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
583      - fix calculation of layer non-weighted velocity and layer probability
584      - add diagnostics for pot.density used for layer averaging
585    o pkg/seaice:
586      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
587        positiveness, modify a few comments and improve variable names,
588      - the changed computation of deltaC affects most seaice-related
589        experiments at the truncation level.
590        seaice_itd.thermo is affected by far the most, with
591        only 7 digits of agreement remaining; update experiments.
592    
593    checkpoint65l (2015/05/04)
594    o pkg/shelfice:
595      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
596        factor drKp1 to zero where it is negative (ie. do not use
597        SHELFICEBoundaryLayer if hFacC>1)
598      - the same for factor drLoc in shelfice_forcing.F
599    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
600        with modules in ptracers, when using testreport option "-small_f"
601    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
602      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
603    o verification/testreport
604      - add new option -small_f
605        with this option testreport first makes the target small_f (*.f files)
606        before running make (all). This is useful for explicit inlining when
607        all sources need to be full available.
608    o pkg/exf/exf_interp.F:
609        remove previous changes related to reverse (decreasing) input grids latitude
610    
611    checkpoint65k (2015/04/01)
612    o pkg/ecco:
613        fix missing cosphi initialization; use eccoiter in place of optimcycle;
614        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
615        instead of active read/write
616    o pkg/ctrl:
617        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
618        instead of active read/write.
619    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
620        return if .NOT.useAUTODIFF
621    o pkg/seaice: add CPP brackets (cost function related).
622    o model/src:
623        add useAUTODIFF run time switch.
624    o pkg/exf/exf_interp.F:
625        add code to allow input grids with latitude starting in the north (i.e. when
626        j=1 corresponds to northern edge of field); modify global_with_exf to test
627        this feature.
628    o verification/testreport:
629      - replace "grep -A3" with POSIX conformal sed command, because there are
630        implementations of grep that cannot do contextual searches
631      - replace "cat -n" by "nl" (two occurrences), because not all implementations
632        of "cat" have the option "-n"
633    o model/src:
634        add new file gsw_teos10.F that contains 3 functions, more or less a copy
635        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
636        convert from conservative to potential temperature. For now they are not
637        called anywhere.
638    o pkg/ggl90: make "useIDEMIX" useful
639      - re-organize code in s/r ggl90_calc a little to move computations that
640        are different for idemix into separate loops (changes verification
641        experiment idemix at truncation level, 12 digits remain -> updated)
642      - requires 2 new 2D fields KappaM, verticalShear
643      - make hFacI and recip_hFacI local 3D variables that are passed to
644        s/r ggl90_idemix
645      - fix and improve some comments
646    
647    checkpoint65j (2015/02/25)
648    o pkg/openad
649      - synchronize seawater.F with version in model/src: replace routine
650        body of sw_temp by calling sw_ptmp and fix/add a few comments.
651    o pkg/mnc:
652      - change default value of pickup_read/write_mnc params to FALSE
653        (since few features are missing in reading MNC pickup files).
654    o model/src:
655      - change default (background) vertical diffusivity for salt to be the
656        temperature (background) vertical diffusivity.
657      - change background vertical diffusivity in vertical mixing pkgs ggl90,
658        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
659        This makes ptracers default diffusivity (that uses salt diffKr) more
660        consistent with vertical mixing schemes.
661    o verification/testreport:
662      - fix typo in "-pcls" option ;
663      - put temp files in /tmp (instead of in local dir)
664      - add option "-ncad" to use genmake2 new option "-nocat4ad"
665      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
666    o pkg/ggl90 (idemix code):
667      - apply few fixes ; add some missing "_d 0" ; update output of exp.
668        global_ocean.90x40x15.idemix
669    o OpenAD
670      - enable active file I/O and begin removal of work-around code
671        for OpenAD for handling control variables (memory vs. active files)
672      - new CPP options file OPENAD_OPTIONS.h
673      - revert to genarr2d gradient check for hs94.1x64x5
674      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
675      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
676    o tools/genmake2:
677      - add option for an alternative Makefile (from Martin) where multiple
678        source files are sent to TAF (instead of all in one file).
679    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
680      - code provided by Carsten Eden as an extension of ggl90
681      - so far the code is turned on within ggl90 by setting a CPP-flag at
682        compile time; a runtime flag implementation is not yet complete
683      - tested in new verification experiment global_ocean.90x40x15.idemix
684    o verification:
685      - reduce length of the AD test run by half for experiments
686        global_ocean.cs32x15 (std + thsice) and isomip
687      - enable active file I/O for OpenAD, adjust verifications accordingly
688      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
689    o verification/testreport:
690      - fix two non-POSIX sed statements so that there are no error messages
691        on Mac OS X
692      - replace hostname -s with hostname | sed 's/\..*$//'
693    o model/src/seawater.F:
694      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
695        (following the matlab code), which would have avoided the bug caught
696        by Matt (see below) in the first place
697    o pkg/shelfice:
698      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
699        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
700      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
701        ice-shelf case (i.e., within surface level).
702      - add config summary in shelfice_check.F
703      - remove global variable recip_SHELFICElatentHeat and replace by a local
704        variable recip_latentHeat
705      - introduce diagnostics for friction velocity uStar (in case of
706        SHELFICEuseGammaFrict)
707      - change verification experiment isomip.htd:
708        + start from pickup (as input_ad at nIter0=8640)
709        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
710        + test SHELFICEuseGammaFrict = .TRUE.
711        + test SHELFICEadvDiffHeatFlux = .TRUE.
712    o model/src:
713      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
714        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
715        update output of experiments global_with_exf.yearly and isomip (all 6).
716    o pkg/shelfice:
717      - change setting of kTopC to also be zero where there is no ice-shelf.
718      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
719        ice-shelf is.
720      - first attempt to get RealFreshWaterFlux effects: for now, only without
721        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
722    o pkg/seaice: add the option to prescribe a fixed thickness PDF
723      for thermodynamic calculations
724      - because of divisions of the type 7/7 not exactly equal to 1, this change
725        affects results of some verification experiments by up to 4 digits:
726        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
727        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
728        adjoint: lab_sea, lab_sea.noseaicedyn
729        -> updated
730    
731    checkpoint65i (2015/01/23)
732    o model/src:
733      - change units of frictionHeating field from W to W/m^2
734      - fix bug in frictional heating from stratospheric drag in
735        S/R ATM_PHYS_TENDENCY_APPLY_V
736      - with synchronous time-stepping: move resetting to zero of frictionHeating
737        field from load_fields_driver.F to thermodynamics.F ;
738      - add diagnostics for frictional heating.
739    o model/src & gmredi K3D:
740      - add frictionHeating field to pickup-files (for synchronous time-stepping)
741      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
742      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
743        and name in pickup file).
744      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
745    o model/src:
746      - move (from ini_forcing.F) initialisation of all arrays in header file
747        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
748        (since Nov 2012) with option selectAddFluid=1.
749    o pkg/shelfice:
750      - change units (+ document) of newly added field "shelfIceMassDynTendency"
751      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
752    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
753    o pkg/seaice: two new runtime parameters:
754      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
755        long overdue
756      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
757        parameterization of tensil stress for fast ice (does not do anything yet)
758    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
759        for LSR: move checking overlaps out of JFNK-if-block
760    o pkg/atm_phys:
761      - move copy of grid and dynamical fields out of atm_phys_driver.F into
762        new S/R ATM_PHYS_DYN2PHYS.
763      - fix level height for Linear Free-Surf case (to be consistent with
764        fixed-in-time pressure levels).
765    o pkg/mom_common (bottomdrag):
766      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
767        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
768        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
769    o pkg/shelfice (u/v_drag):
770      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
771      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
772        (now similar to shelfice_u_drag.F)
773      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
774        from mom_vecinv.F (similar to mom_fluxform calls).
775    o pkg/mom_common (bottomdrag):
776      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
777      - add options for alternative discretisation of velocity norm in quadratic
778        bottom drag: averaging of grid-cell-center KE to U.point and V.point
779        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
780        improves when averaging only the other component (e.g. vVel for U bottom
781        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
782      - add options (bottomVisc_pCell) to account for partial-cell in bottom
783        friction (no-slip BC) thus getting the true distance from the bottom;
784        off by default since this also reduces model stability (explicit bottom
785        friction). Changes produce different machine truncation with linear-drag
786        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
787        front_relax (bvp & mxl, 10 & 11 digits).
788    o model/src & mom pkgs:
789      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
790        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
791      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
792        just copy level Nr value to level Nr+1.
793    o doc:
794      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
795    o pkg/shelfice:
796      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
797        SHELFICE.h: move array shelficemass to init_varia, initialise
798        from array shelficemassinit, which is set in init_fixed and
799        has option to be set from file; introduce array
800        shelficeMassDynTend array, set thru file in init_fixed
801      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
802        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
803        pkg/streamice
804      - shelfice_thermodynamics.F: call shelfice_step_icemass if
805        SHELFICEMassStepping = .true.
806      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
807    
808    checkpoint65h (2014/12/17)
809    o verification/global_ocean.90x40x15, global_ocean_ebm:
810      - update to generic controls.
811    o pkg/ctrl:
812      - ctrl_map_ini_genarr.F: test for igen>0
813      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
814      - move gentim2d part of ctrl_map_ini_genarr.F to
815        new separate routine : ctrl_map_ini_gentim2d.F
816      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
817        add time variable weights and cyclic controls (time mean,
818        seasonal cycle, etc) capabilities to gentim2d
819    o pkg/ecco:
820      - move reading of error, conversion to weights from
821        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
822    o global_oce_llc90, cs32:
823      - activte sbo.
824      - CTRL_SIZE.h : add maxCtrlProc.
825      - activate the new genctrl capabilities.
826      - update following reorganization of global_oce_input_fields.tar.gz  
827    o pkg/ctrl/ctrl_ad_diff.list:
828      - add missing ctrl_init_rec.f
829    o tools/OAD_support/keepOriginal:
830      - add ctrl_init_rec.F
831    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
832      - avoid recomputations of xx_gentim2d_dummy.
833    o momentum diagnostics:
834      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
835        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
836    o pkg/seaice/seaice_lsr.F:
837      - fix computation of BU/BV, make sure they are non-zero, only necessary
838        for cubed sphere exchanges and SEAICE_OLx/y>0.
839        This makes calling s/r fill_cs_corner_rl obsolete (removed).
840    o verification/global_ocean.cs32x15/input.seaice
841      - add test for strong implicit coupling and restricted addtive Schwarz
842        methods for LSR
843      - update results/output.seaice.txt
844    o verification/tutorial_global_oce_biogeo:
845      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
846        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
847        update output_adm,_oadm,_tlm.txt
848    o pkg/dic:
849      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
850      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
851        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
852    o verification/tutorial_global_oce_biogeo:
853      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
854        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
855        update output_adm,_oadm,_tlm.txt
856    o eesupp/src:
857      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
858        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
859    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
860      LSR (following Hutchings et al. 2004)
861      - introduce zetaZ as a global variable (requires adjustments in
862        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
863        in seaice_calc_viscosities.F
864      - new flag SEAICEuseStrImpCpl (default off)
865      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
866        momentum equations
867      - JFNK-solver (preconditioner) adjusted to allow using this method
868        (where it does not have any positive effect)
869    o pkg/seaice
870      - add overlap for restrictive additive Schwartz method also to LSR, but
871        turn it off by default (because it only seems to work for non-cubed
872        sphere/llc topologies)
873    o pkg/autodiff
874      - add extra exchanges in addummy_in_steppging also for mnc output
875    o pkg/seaice:
876      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
877        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
878    o pkg/obcs:
879      - add option to specify domain-connected piece Id along OB though files
880        (for now, only used to diagnose PhiVel; default =1 -> global correction)
881      - modify obcs_diag_balance.F to process each connected-part separately;
882        exclude OB where Id = 0 but keep the full divergence there (-> constant
883        Psi along this portion of OB and all inflow derived from grad(Phi))
884      - add example of OB-conect files in verification/so_box_biogeo/input.
885    o pkg/diagnostics:
886      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
887      a) use non zero matrix element across OB and solve for Phi 1 grid point
888         outside OB (i.e, where tracer OBCS are applied).
889      b) global imbalance of inFlow/outFlow across OB: instead of modifying
890         velocity across OB, spread it uniformly along the OB in the RHS.
891    
892    checkpoint65g (2014/11/19)
893    o pkg/diagnostcis:
894      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
895    o pkg/my82,pp81,kl10:
896      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
897        field diffKr as background diffusivity to set minimum diffusivity value.
898    o pkg/seaice:
899      - add new parameter SEAICEuseEVPrev (for revisited EVP by
900        Bouillon et al 2013)
901      - add SEAICE_evpAlpha/Beta to namelist
902      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
903        involve trivial re-ordering of divisions/multiplications that should not
904        have any effects, but ... they do change the results of lab_sea.hb87 so
905        that only 2 digits of agreement remain, in line with the general
906        instability/fragility of the evp-code. For now, I do not care and just
907        update the verification experiment
908    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
909      - remove xx_genarr2d_numsmooth etc
910      - use xx_genarr2d_preproc etc instead
911      - carry out smooth_correl2D at initialization stage rather than during
912        time stepping.
913      - get smoothOpNb from xx_gentim2d_preproc
914    o global_oce_cs32 :
915      - add test of generic ecco capabilities.
916    o pkg/exf/exf_getsurfacefluxes.F :
917      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
918    o pkg/ctrl,ecco :
919      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
920        is defined.
921    o pkg/seaice: add diagnostics for Delta (deformation parameter)
922    o model/src:
923      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
924        diffusivity (background) is specified but ignored.
925    o verification:
926      - in testreport, convert hostname to lower case for default output dir name
927    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
928    o pkg/dic: add modifications from Hajoon:
929      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
930      - light attenuation: add self-shading effect by climatological Chlorophyll
931        (read from file).
932    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
933        compiles when SEAICE_ALLOW_DYNAMICS is undefined
934    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
935        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
936        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
937        approach where CPP_OPTIONS.h includes an omnipotent
938        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
939    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
940        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
941    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
942        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
943        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
944    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
945      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
946      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
947      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
948      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
949    o pkg/ctrl,ecco,exf :
950      - remove variables associated with NON-generic costs,
951        unless ECCO_CTRL_DEPRECATED is defined.
952      - remove NON-generic NON-obcs controls,
953        unless ECCO_CTRL_DEPRECATED is defined.
954    o pkg/ctrl : added ctrl_local_params.h
955    o pkg/ecco : added ecco_local_params.h
956    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
957        experiments, which will progressively be removed once the
958        experiments are revised to use only generic controls/costs.
959    
960    checkpoint65f (2014/10/13)
961    o pkg/ctrl, ecco, seaice : minor changes in headers
962    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
963        cost function and control capabilities added since checkpoint65c.
964    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
965    o pkg/ecco: increase modularity and improve logic
966      - ecco_toolbox.F (new) : basic operations that are often used,
967        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
968        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
969      - cost_gencal.F (new) : determine filnames and records.
970      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
971      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
972        and exploit the above functions leading to more compact code.
973      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
974      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
975        using_ers, using_gfo, using_mdt is now only defined within gencost)
976    o pkg/ecco: extend generic cost capabilities
977      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
978        capabilities via gencost_preproc (+ _c,_i,_r related params),
979        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
980        gencost_outputlevel arguments to cost_generic
981      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
982        and active_read, making room for gencost_preproc to take effect.
983        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
984      - pkg/ecco/cost_generic.F :
985        compute and store misfit maks*(model-data) in localdif that is
986        then used in cost and for output, output misfit if outlev.GT.0
987      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
988        rather gencost_barfile for deciding whether to write barfile
989      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
990      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
991        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
992      - pkg/ecco/ecco_summary.F : report gencost variables
993      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
994    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
995    o pkg/ecco: internal re-organization
996      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
997        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
998        mv relevant variables definition from ecco_cost.h to ecco.h,
999        make sure gencost routines only include ecco.h)
1000      - throughout : add missing CCP switches, rm unused variables,
1001        and rm un-necessary CPP switches
1002      - throughout gencost routines : replace modelstartdate with
1003        gencost_startdate when needed
1004      - cost_bp_read.F : use arguments, instead of common blocs
1005        so that it can be used also by (new) cost_gencost_bpv4.F
1006      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1007      - ecco_phys.F : compute etanFull
1008      - ecco_readparms.F : rename using_topex as using_tpj, add
1009        bpv4-grace to gencost list, initialize added parameters
1010      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1011    
1012    checkpoint65e (2014/09/28)
1013    o pkg/obcs:
1014      - replaced the just-added CPP options with run-time variables
1015        (see pkg/obcs/OBCS_PARAMS.h for details)
1016    o pkg/obcs:
1017      - add additional CPP options for sponge boundary layers
1018        (see pkg/obcs/OBCS_OPTIONS.h for details)
1019    o pkg/atm_phys:
1020      - implement simple (obliquity only, assuming circular planet orbit)
1021        seasonal cycle for incoming insolation ; used when run-time parameter
1022        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1023    o pkg/exf, pkg/ecco, pkg/ctrl:
1024      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1025      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1026      - implement gentim2d for xx_tauu, xx_tauv
1027    o pkg/ctrl, pkg/ecco :
1028      - fix and complement the generic controls implementation
1029    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1030        pkg/shelfice/shelfice_thermodynamics.F,
1031        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1032        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1033      - add weight in CTRL_GET_GEN calls
1034    o pkg/ctrl :
1035      - ctrl_get_gen.F : add weight as input parameter, and apply
1036        it directly rather than using smooth_correl2Dw (to be retired).
1037      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1038    o pkg/ctrl :
1039      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1040        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1041      - re-activate ctrl_summary (call in ctrl_init.F)
1042    o pkg/ctrl/ctrl_cost_gen.F :
1043      - fix CCP brackets, remove un-necessary myiter, mytime
1044    o pkg/ecco, pkg/ctrl :
1045      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1046      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1047      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1048      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1049    
1050    checkpoint65d (2014/09/15)
1051    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1052      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1053        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1054    o pkg/ctrl/ctrl_map_ini_genarr.F :
1055      - remove compilation failure
1056      - replace hard coded example
1057      - use ctrl_map_ini_gen2D, 3D
1058    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1059      - on/off switch based upon xx_genarr2d_weight,3d
1060    o src/packages_init_variables.F :
1061      - regroup pkg/estimation calls
1062      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1063        (moved to ctrl_init_variables)
1064    o cost/cost_init_varia.F :
1065      - remove ecco_cost_init_varia
1066        (moved to ecco_init_varia)
1067    o ctrl/ctrl_init_variables.F :
1068      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1069      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1070    o ctrl/ctrl_map_ini.F :
1071      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1072        (moved to ctrl_init_variables)
1073    o ctrl/ctrl_map_ini_ecco.F :
1074      - remove ECCO_PHYS (mv to ecco_init_varia)
1075      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1076    o ecco/ecco_ad_diff.list :
1077      - add ecco_init_varia.f
1078    o ecco/ecco_init_varia.F
1079      - new routine
1080    o pkg/streamice:
1081      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1082        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1083      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1084    o pkg/generic_advdiff:
1085      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1086    o pkg/exf:
1087      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1088         xxg_precip capability
1089      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1090    o pkg/ctrl:
1091      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1092    o model/src/load_fields_driver.F :
1093      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1094        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1095    o OpenAD verification experiments:
1096      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1097        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1098        for now, only in pkgs used in OpenAD verification experiments.
1099      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1100        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1101        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1102        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1103    o OpenAD verification tests:
1104      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1105      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1106        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1107      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1108        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1109    o model/src & generic_advdiff:
1110      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1111        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1112        dynamics requires valid tracer forcing only over tile interior but, for
1113        some diagnostics, may need to extend it over 1 point in tile halo region.
1114      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1115        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1116        setting in temp/salt/ptracer_integrate.F
1117    o pkg/dic:
1118      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1119        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1120        in gchem_forcing_sep.F
1121    o pkg/autodiff & obcs:
1122      - add storage of current OB values for U & V (was already done for T & S).
1123    
1124    checkpoint65c (2014/08/30)
1125    o pkg/dic:
1126      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1127        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1128        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1129    o verification:
1130      - new experiment testing OBCS and DIC pkgs, using params & output from
1131        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1132        passage: take OBCS from the last year of a 2 yrs simulation and initial
1133        conditions from t=1.yr while keeping the same forcing.
1134    o model/src:
1135      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1136        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1137    o pkg/diagnostics (Stats-Diags):
1138      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1139        a) refine region where stats are computed, excluding where arrhFac=0 ;
1140        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1141        c) extend regional stats over the region edges (for U or V pt location).
1142    o pkg/gchem:
1143      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1144        pkg/dic is currently changing/updating ptracers values beyond the OB).
1145    o verification (hs94):
1146      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1147        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1148        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1149        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1150    o pkg/ptracers:
1151      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1152        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1153      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1154        with AB-2 code (so that it get tested).
1155    o model/src:
1156      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1157        with AB-2 code (previously only available with AB-3 code).
1158        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1159        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1160        there, by calling CYCLE_AB_TRACER).
1161    o pkg/generic_advdiff:
1162      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1163        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1164        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1165        S/R temp/salt/ptracers_integrate.F
1166    o model/src & pkg/ptracers:
1167      - remove common block variables gT,gS (in DYNVARS.h), except when
1168         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1169      - remove common block variable gPtr.
1170    o model/src & pkgs:
1171      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1172         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1173         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1174         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1175      + change accordingly all calling S/R.
1176      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1177        in S/R temp/salt/ptracers_integrate.F
1178    o pkg/seaice:
1179      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1180        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1181      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1182        in seaice_lsr
1183      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1184        in s/r seaice_lsr_calc_coeffs
1185    o pkg/mdsio:
1186      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1187        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1188        too long (e.g., > MAX_LEN_FNAM/2 )
1189    
1190    checkpoint65b (2014/08/12)
1191    o pkg/matrix:
1192      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1193    o model/src:
1194      - fix initialisation of geothermalFile; compile geothermal-flux code in
1195        natl_box verification experiment.
1196    o model/src & pkg/down_slope:
1197      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1198      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1199        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1200        results at machine truncation level: update output of experiments
1201        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1202    o pkg/diagnostics (Stats-Diags):
1203      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1204        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1205        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1206        times (but Min,Max and StD are still wrong).
1207    o model/src:
1208      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1209        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1210    o model/src:
1211      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1212        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1213        arrays are already updated while adjustments (filters, conv.adjustment) are
1214        still applied later, in S/R TRACERS_CORRECTION_STEP.
1215    o model/src:
1216      - store in common bloc array "rhoInSitu" the virtual potential temperature
1217        anomaly that is used to compute geopotential: this make the atmos code
1218        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1219    o pkg/seaice/seaice_lsr.F
1220      - rename integer variable ilcall to ipass (that's what it is called
1221        in the residual diagnostics
1222      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1223        default) for improved non-linear convergence of the first few steps
1224      - adjust a few comments and add new ones to explain some of the store
1225        directives
1226    o pkg/generic_advdiff (& ptracers):
1227      - re-work the code to check for valid advection scheme and for minimum
1228        size of overlap (now stored in local common bloc in gad_advscheme.F)
1229    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1230      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1231      - add an auxilliary variable "bet" and fix store directives and keys in
1232        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1233        less exact gradients in my tests); but there are still
1234        recomputation warning (although gradients are sort of OK), when
1235        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1236        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1237      - update verification experiments lab_sea.
1238      - change some comments in S/R seaice_calc_viscosities
1239    o model/src:
1240      - if staggerTimeStep=T, always apply exchange to velocity field in
1241        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1242        (independent of using multi-dim advection or not); no effect on FWD run
1243        but affects AD results (at machine truncation level): update output of
1244        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1245        and isomip (oad: 12.d).
1246    o pkg/generic_advdiff:
1247      - stop if doAB_onGtGs is set to FALSE but ignored
1248      - refine warning related to stability of tracer time-stepping
1249        regarding internal wave dynamics.
1250      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1251        on staggerTimeStep & implicitIntGravWave (will now get a warning
1252        if potentially unstable).
1253    o pkg/kl10:
1254      - add new pkg "kl10" for mixing due to internal wave breaking, from
1255        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1256        (contribution from Jody Klymak), tested in verification experiment
1257        verification/internal_wave/input.kl10/
1258    o isomip experiment:
1259      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1260        (input.htd) and update the output.
1261    o cd_code experiments:
1262      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1263        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1264        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1265        update the corresponding output.
1266    o pkg/seaice:
1267      - reduce the number of include files and store directives in
1268        S/R seaice_lsr_tridiagu/v
1269      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1270        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1271        get rid off one store directive (a TAF bug?)
1272      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1273        S/R seaice_lsr_tridiagv to change the loop range for consistency
1274      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1275      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1276        S/R seaice_lsr_tridiagu/v (requires update of
1277        offline_exf_seaice/input.dyn_jfnk)
1278    
1279    checkpoint65a (2014/07/27)
1280    o model/src:
1281      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1282        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1283        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1284        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1285    o model/src:
1286      - collect momentum forcing tendency into local 2-D array (passed as argument
1287        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1288        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1289        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1290      - collect T & S forcing tendency into local 2-D array (passed as argument to
1291        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1292        affects results at machine truncation level (e.g., ocean: if using
1293        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1294        correction due to vertical advection).
1295      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1296        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1297        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1298        obcs_ctrl (ad & fwd grd @ 12 & 7).
1299    o pkg/ptracers & diagnostics:
1300      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1301        title (to avoid some unexpected truncation); sort out ptracers diags units.
1302      - collect ptracer forcing tendency into local 2-D array (passed as argument
1303        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1304    
1305    checkpoint65 (2014/07/18)
1306    o pkg/fizhi:
1307      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1308        affects results at machine truncation level. Update output of experiments
1309        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1310    o pkg/seaice: more clean up
1311      - rename TAF common block tapes to be more consistent and remove
1312        unnecessary duplicates
1313      - add store directives to remove more recomputations, but use smaller
1314        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1315        The idea behind this flag is to reduce the memory footprint when the
1316        adjoint of the LSR is not required. As of now, defining the flag
1317        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1318        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1319        For experiment offline_exf_seaice, this means on a linux box with gfortran
1320        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1321        this experiment):
1322        > size mitgcmuv_ad
1323        text    data        bss     dec        hex
1324        5100659 1216  220458952  225560827  d71c8fb
1325        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1326        but only a moderate increase of 36% for global_ocean.cs32x15:
1327        text    data        bss     dec        hex
1328        6695027 1648 1014578664 1021275339 3cdf6ccb
1329        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1330      - note: there are still recomputations in global_ocean.cs32x15 and
1331        offline_exf_seaice and the gradient agreement changes (gets a
1332        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1333      - in general, the AD gradients still are wrong
1334    o OpenAD
1335      - clean up code_oad/ directories somewhat by moving files
1336        dontCompile, dontTransform, keepOriginal to OAD_support/
1337    o model/src:
1338      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1339        (not currently tested): add dissipation terms before NLFS rescaling of
1340        tendencies (previously done after).
1341    o pkg/diagnostics:
1342      - write stats-diags in ascii file with more digits (same as in monitor).
1343    o pkg/down_slope:
1344      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1345        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1346    o model/src:
1347      - new file "apply_forcing.F" containing all the code previously in
1348        external_forcing.F, but with new argument list: pass, as new argument,
1349        the current level tendency array to update (instead of a direct update
1350        of the common bloc array). Change the corresponding calls.
1351      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1352        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1353    o pkg/seaice/seaice_lsr, a little bit of clean up
1354      - rearrange some code blocks, so that now all calculations for
1355        setting up the right-hand-sides done within one single block
1356        (I find that easier to read and understand)
1357      - rearrange freedrift-code to reduce the number of ifdefs
1358      - adjust some indentations and comments
1359    
1360    checkpoint64z (2014/07/10)
1361    o model/src and several pkgs:
1362      - change argument list of all S/R called from external_forcing.F and
1363        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1364        to pass, as argument, the current level tendency array to update
1365        (instead of a direct update of the common bloc array).
1366      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1367      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1368    o pkg/seaice/seaice_lsr.F
1369      - always initialize local arrays in seaice_lsr_tridiagu/v
1370      - add more local tapes to seaice_lsr_tridiagu/v
1371      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1372        keep it in bi/bj loop; this seems to be essential
1373      - gradients are still wrong but only by 4-7 orders of magnitude
1374        instead of 15 orders of magnitude, lab_sea improves a little
1375  o pkg/seaice  o pkg/seaice
1376      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1377        generates unnecessary code in seaice_lsr_ad
1378      - add more store directives in seaice_lsr to avoid unnecessary code
1379        in seaice_lsr_ad
1380      - exclude some residual computations in seaice_lsr when
1381        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1382        in seaice_lsr_ad
1383      - add more storing, a new tape (model/src/the_main_loop.F) and
1384        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1385        and klockey should be checked by a specialist)
1386      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1387        and update lab_sea after previous changes in pkg/seaice below
1388    o pkg/autodiff:
1389      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1390        viscFacInAd : run time parameters allowing for adjoint switches
1391        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1392    o pkg/ecco:
1393      - introduce cost_gencost_boxmean.F that computes a box mean
1394        temperature (for use in adjoint sensitivity studies).
1395    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1396    o pkg/mom_common/mom_calc_visc.F:
1397      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1398    o pkg/seaice/seaice_summary.F:
1399      - statement for SEAICEadjMODE now in autodiff_readparms.F
1400    o pkg/seaice:
1401      - remove some store directives and add new ones in an effort to get
1402        finally rid off the recomputation warnings. This is successful
1403        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1404        defined (i.e. no extensive recomputation warnings left), but there
1405        are still too many recomputations on the solver iteration level
1406      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1407    - move definition of MPSEUDOTIMESTEPS into TAMC-block in    - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1408      SEAICE_SIZE.h      SEAICE_SIZE.h
1409    - add a store directive in S/R seaice_calc_viscosities    - add a store directive in S/R seaice_calc_viscosities

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