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revision 1.2094 by jmc, Wed Nov 19 16:49:37 2014 UTC revision 1.2229 by mlosch, Thu Jan 28 15:48:06 2016 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      - unify iteration parameters for implicit solvers (JFNK and Picard)
9        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
10        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
11        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
12        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
13        SEAICEnonLinTol     replaces JFNKgamma_nonlin
14      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
15      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
16        use with SEAICEuseKrylov
17    o pkg/seaice/seaice_lsr.F
18      fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
19      relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
20      an effect.
21    o pkg/seaice: add two new parameters
22      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
23        parameter is not in any namelist)
24      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
25        a preconditioner for the non-linear Newton iteration of the JFNK
26        solver
27    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
28      affects some experiments at truncation level:
29      - global_ocean.cs32x15.icedyn (11 digits),
30      - global_ocean.cs32x15.seaice (11 digits),
31      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
32      - also update global_ocean.cs32x15 adjoint and tangent-linear results
33    o pkg/salt_plume & pkg/thsice:
34      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
35        connect salt_plume flux to ATM-OCN coupling pkgs interface:
36       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
37         export to coupler interface) even without compiling pkg/salt_plume ;
38       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
39         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
40    o pkg/dic:
41      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
42        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
43        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
44      - move also update with values from ATM-OCN Coupler in the same new S/R
45        (previously done in ocn_apply_import.F).
46    o tools/adjoint_options:
47      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
48        has been changed on Jan 14, 2016.
49    o pkg/ggl90:
50      - add alternative discretisation of vertical shear (off by default), to
51        compute the mean (@ grid-cell center) of vertical shear compon instead of
52        vertical shear of mean flow (@ grid-cell center).
53      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
54        results on adjacent faces of cubed-sphere grids; this fix the restart.
55    o pkg/atm_compon_interf:
56      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
57        pass last value, stored directly before export to CPL ;
58        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
59      - remove atmSLPr from pickup files (no longer needed for restart)
60    
61    checkpoint65s (2016/01/13)
62    o eesupp & genmake2:
63       - first check for Function ETIME and, if it fails, then check for subroutine
64         ETIME and consistent output; use the appropriate version in timers.F
65    o model/src:
66      - to check restart test, add option to apply EXCH to U,V earlier, just before
67        integr_continuity; turned off by default.
68    o pkg/dic:
69      - remove CPP option USE_ATMOSCO2 (not needed)
70    o tools/tst_2+2:
71      - try to ignore difference between +0 and -0 in binary file, causing test
72        to fail for no good reason.
73    o eesupp & genmake2:
74      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
75        but also check (in genmake2) that test runs and returns meaningful results.
76    o coupler pkgs:
77      Finish implementation of optionally-exchanged variable switches (started on
78       Nov 12) with addition of few more exchanged fields, including 2-way exchange
79       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
80       advection in OCN component; this requires sequential coupling.
81      coupler (pkg/atm_ocn_coupler):
82      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
83        routines (useful for debug).
84      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
85         flux, DIC fields) if corresponding switch is ON.
86      - add option to export RunOff to OCN (to use for DIC river input)
87      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
88      components (pkg/atm_ & ocn_compon_interf):
89      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
90        optionally exchanged fields; add a check & stop in cpl_readparms.F.
91        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
92        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
93      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
94        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
95      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
96      - hold in common block coupler optionally-exchanged variable switch
97        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
98      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
99        this is intended to replace the OCN cplFldtave.* output files (not updated
100        to contain new additional exchanged fields).
101    o pkg/dic:
102      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
103    o pkg/thsice:
104      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
105        and writing of thsice pickup files.
106    o pkg/atm_compon_interf:
107      - move all field individual export-call out of cpl_export_import_data.F
108        into new S/R ATM_EXPORT_FIELDS
109    o pkg/atm_compon_interf:
110      - store state variables (for now, only thSIce fields) just before beeing
111        exported (in cpl_export_import_data.F, like on ocean side) instead of from
112        atm_store_my_data.F like all exported fluxes.
113      - new version of pickup_cpl: write field names into meta file and read meta
114        file to find field postion in pickup. Also only write/read fields meeded for
115        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
116    o pkg/dic:
117      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
118    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
119        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
120        value can be from domain [0,1] to average between the two methods
121    o pkg/atm_phys:
122      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
123        hold fixed in time).
124    
125    checkpoint65r (2015/12/21)
126    o pkg/seaice:
127        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
128        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
129    o pkg/seaice:
130      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
131        when SEAICEscaleSurfStress=.TRUE.,
132      - apply areaW and areaS in S/R seaice_calc_lhs
133    o pkg/atm_phys:
134      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
135        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
136        for individual contribution (convection, LSC cond, radiation)
137      - add Ruth Geen etal, GRL 2016, radiation optionis (see paper supp.
138        information); activated with: solar_exponent=0. and wv_exponent=-1.
139    o pkg/ggl90:
140      - within IDEMIX add upper limit for horizontal group velocity to
141        avoid instability problems in the explicit horizontal diffusion term for
142        long time steps or high resolution
143    o pkg/diagnostics:
144      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
145        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
146    o testreport:
147      - remove "-v" (verbose option) in default mpirun command.
148    o pkg/seaice/seaice_growth:
149      - catch potential division by zero in ITD code, does not change
150        verification results
151    o pkg/ecco:
152      - retire old codes to the Attic. The calls to retired functions are
153        left in a commented form in case they ever need to be re-activated.
154      - ecco_check.F: issue warning if any old CPP option is
155        defined that corresponds to retired codes -- then stop.
156    o pkg/atm_compon_interf:
157      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
158        coupler: use last time-step value instead of average over cplSendFrq_iter
159        time-step, similar to what is done for seaIceMass.
160        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
161    o eesupp & genmake2:
162      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
163        <= remove until a fix is found for some ifort version on ia32 machine.
164    o pkg/seaice/seaice_evp:
165      - refine residual computation
166    
167    checkpoint65q (2015/11/18)
168    o pkg/seaice/seaice_evp:
169      - fix residual computations so that they no longer affect the actual
170        simulation code
171      - fix seaice_readparams to be able to actually set new parameters
172        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
173    o model/src:
174      - fix wrong truncation (single prec) from "FLOAT" function in expressions
175        like: deltaT*FLOAT(myIter) when myIter is large:
176         a) replaced by DFLOAT (if not seen by TAF);
177         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
178    o pkg/aim_v23:
179      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
180        when pickupSuff is set ; do write rolling pickups + at the end of the run.
181    o pkg/atm_ocn_coupler + ocn_compon_interf:
182      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
183        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
184        add corresponding call in DO_OCEANIC_PHYS.
185    o coupler pkgs:
186      Start a new way to set-up optionally-exchanged variables (previously, only
187       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
188       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
189       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
190       compononent param default can be set accordingly).
191      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
192       but rather applies to a group a fields (going both ways like for DIC)
193       and corresponds to an option of coupling config.
194      coupler (pkg/atm_ocn_coupler):
195      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
196        and read namelist directly (without eessup S/R calls) instead of
197        in the very un-flexible old way, 1 param per line, in fixed order;
198      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
199        cleanly in CPL_CHECK_CPLCONFIG
200      - add new coupling-exchange selectors (some not yet active) including
201        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
202                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
203      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
204        component ; called directly from coupler.F, after comp. registrations;
205      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
206         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
207          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
208      components (pkg/atm_ & ocn_compon_interf):
209      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
210        CPP header file in all pkg source files.
211      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
212        ATM/OCN_CHECK_CPLCONFIG;
213      - add error-counter to track errors (e.g., in "data.cpl") and to stop
214        cleanly in ATM/OCN_CHECK_CPLCONFIG;
215      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
216        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
217        before PACKAGES_READPARMS;
218      verification/cpl_aim+ocn/:
219      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
220        "data.cpl" for coupler (in input_cpl).
221    o eesupp/inc:
222      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
223        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
224        to always cumulate tile local-sum in the same order (still uses
225        MPI_Allreduce like standard code).
226      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
227        that are now identical to standard version (in eesupp/inc).
228    o pkg/shelfice:
229      - add SHELFICETransCoeffTFile for initializing spatially varying
230        heat and salt transfer coefficients
231    o pkg/atm_compon_interf & ocn_compon_interf:
232      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
233        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
234      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
235    o pkg/atm_ocn_coupler:
236      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
237    o pkg/rbcs:
238      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
239        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
240      - add a short report (to STDOUT) about RBCS-mask settings.
241    
242    checkpoint65p (2015/10/23)
243    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
244        there is no adjoint test for EVP, we don't know what it does to the adjoint
245        solution, but at least there are no more recomputation warnings left
246    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
247        a chance of giving the same results as a fully converged VP (JFNK) solver
248    o tools/adjoint_options/adjoint_diva:
249      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
250    o pkg/streamice:
251      - spotted bug in streamice_driving_stress using dyG where should have been dxG
252    o pkg/exf:
253      - remove STOP statement that prevented to use wind or (wind-)stress
254        interpolation for constant-in-time forcing fields (wind/stress period = 0).
255    o pkg/seaice:
256      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
257        5 additionals 2D fields and 6 new store directives
258      - change logic in seaice_readparms.F: EVP code can now be turned on in
259        various ways, setting SEAICE_deltaTev is no longer required,
260        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
261        or SEAICEaEVPcoeff
262    o pkg/shelfice/shelfice_thermodynamics.F
263      - redefining uLoc/vLoc to u/v, instead of 2u/v
264    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
265      - this is an intermediate state of a truely converging EVP that has
266        the potential of outperforming implicit VP methods, I do not recommend
267        using it yet.
268      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
269        and all parameters are hardwired
270      - for convergence it still requires very smooth regularisations, that means,
271        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
272        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
273        specific averaging appears to be required, still subject to tuning
274      - still needs cleaning and I need to turn parameter into runtime parameters
275      - add code to compute and print residuals of iteration, compile with
276        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
277    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
278      that entered with r1.54 on Sep04, 2015, -> update results
279    
280    checkpoint65o (2015/09/14)
281    o pkg/mom_vecinv & mom_common:
282      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
283        called from there.
284      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
285        allows to use Vector-Invariant form in deep atmos and anelastic formulation
286    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
287      and Koenig-Beatty+Holland (2012)
288      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
289      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
290      - requires an extra input argument for S/R seaice_calc_viscosities
291      - tensileStrength's depth dependence is different from Itkin et al. (2015)
292        (to be changed and played with, for now exponential)
293    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
294      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
295        by AREA according to Connelly et al. (2004), JPO.
296      - For EVP and the LSR solver, the implicit part of the drag term is
297        the only non-zero term in the denominator when there is no ice (which
298        prevented running the model with zero ice-ocean drag). If
299        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
300        (or zero main diagonals BU/BV) which need to be caught. A practical
301        consequence is that for open water, the momentum equation reduce
302        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
303        they happen to be zero, often leading to a non-zero solution over
304        open water.
305    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
306        efficient EVP method.
307      - introduce area-weighted averages for e12 (analogously to
308        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
309        remain, but also changing the order of terms in the previous average
310        changed the results as much) -> update experiment
311      - add SEAICE_DELTA_SMOOTHREG code
312      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
313        TEM-code
314      - adjust loop bounds so that only required fields are computed
315      - add new averaging code for zetaZ/deltaZ (again similar to
316        seaice_calc_viscosities.F), inactive by default for now (will change
317        results again), but will replace old code eventually
318    o eesupp/src:
319      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
320        to always cumulate tile local-sum in the same order
321        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
322        Still uses MPI_Allreduce (like standard code) but on array of tiles
323        and should be faster than GLOBAL_SUM_SEND_RECV code.
324      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
325        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
326      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
327         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
328         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
329         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
330         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
331    
332    checkpoint65n (2015/07/29)
333    o pkg/thsice:
334      - add a warning when used with pkg/aim but without updating SST
335        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
336    o pkg/offline:
337      - change where Offline-Fields are loaded, from load_fields_driver.F to
338        directly within FORWARD_STEP, just after updating iter number and time;
339      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
340        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
341       These changes allow:
342        a) to recover exactly on-line results using deltaToffline=deltaTClock,
343        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
344        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
345        time-step, both with GM & KPP files and with recomputing these fields;
346        b) no needs to switch on staggerTimeStep anymore;
347        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
348      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
349    o pkg/offline:
350      - change (rarely used) offset-iteration parameter to an offset time (in s):
351        can easily recover previous offset-iter effect by setting offset-time
352        (offlineTimeOffset) to offset-iter x deltaToffline;
353      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
354        in KPP as part of surface buoyancy forcing) in offline run.
355      - fix ptracers KPP non-local term in the case where KPP is re-computed.
356    o OpenAD
357      - Adding preliminary ggl90 test to OpenAD verification.
358        Config. with ggl90 currently diverges after 64 time steps
359        so will need more work to become more stable
360      - Adding preliminary kpp test to OpenAD verification.
361        required small tweakes in kpp_routines.F
362      - Merge and update from Krishna Narayanan's contrib area:
363        * Add one variable for preliminary OpenAD DIVA
364        * Add replacement time-stepping for OpenAD DIVA
365        * genmake2 flag -diva (but only for OpenAD; preliminary)
366        * required modifs for OAD_support
367        successful preliminary test for tutorial_global_oce_biogeo/
368    o pkg/seaice:
369      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
370      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
371        delta with a smooth function in s/r seaice_calc_viscosity
372        (no effect on EVP)
373      - rename local suffix "sqr" into "sq" for more consistent variable names
374    o pkg/seaice:
375        add new parameter SEAICE_deltaMin that is used ***only***
376        for regularizing Delta (and nothing else, like the parameter
377        which is also used for all sorts of things SEAICE_EPS).
378        Defaults to SEAICE_EPS for backward compatibility only.
379    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
380        the wrong key by inialising it before use -> fixes a recomputation
381        problem but does not fix the gradient
382    o pkg/layers:
383      - move resetting of flux arrays to outside the iLa loop
384        (this caused layers_diapycnal to not work with more than one layer coord.)
385      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
386    o pkg/layers:
387      - remove from common block 3D layers fields (used to diagnose transport
388        in tracer coords) and declare them as local arrays in layers_calc.F
389    o pkg/seaice:
390      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
391        in lab_sea forward experiment (changes results -> updated)
392      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
393    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
394       computations; for SEAICE_VECTORIZE_LSR
395      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
396        sweep to the outside,
397      - remove store directives and add "CADJ loop sequential" directives
398        in analogy to model/src/solve_tridiagonal.F
399      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
400        boundaries to yield more readable code. This has also the charming side
401        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
402        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
403        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
404        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
405        an additional option)
406       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
407       but the adjoint gradients (which are affected by this change) still explode.
408    o coupler (atm & ocn _compon_interf):
409      - avoid using Exch2 IO mapping if not suitable.
410    
411    checkpoint65m (2015/06/15)
412    o pkg/layers:
413      - clean-up old parameters setting (from Sep 2012):
414        + remove old parameters setting from common block (declared locally);
415        + stop if any old parameter is mixed with new parameters;
416        + check for valid or consistent parameter setting (e.g., layers_name)
417      - check that layers_bounds for Pot.Density are in the right range;
418        this is supposed to catch un-updated setting after recently shifting
419        potential density field "prho" by -1000 (now in "sigma" scale).
420    o pkg/layers:
421      - Added missing call to layers_fill for keeping track of tottend in
422        pkg/diagnostics/diagnostics_fill_state.F
423    o pkg/layers:
424      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
425        of diapycnal fluxes
426    o pkg/layers:
427      - reverted changes to interpolation to previous treatment; there
428        was never actually a problem
429    o pkg/layers:
430      - fix interpolation of layers tracers in the presence of partial cells
431      - add lots of new functionality to compute water mass transformation
432        (enabled by CPP flag LAYERS_THERMODYNAMICS)
433      - add new calls from main code (diags_oceanic_surf_flux.F,
434        thermodynamics.F, impldiff.F) and gad to save the necessary fields
435        for layers_thermodynamics calculations
436    o pkg/ptracers:
437      - add capability of stepping a passive tracer forward without advection
438        by setting PTRACERS_advScheme to 0.
439    o pkg/diagnostics:
440      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
441    o pkg/layers:
442      - shift potential density field "prho" by -1000 for density layer averaging so
443        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
444        Note that density bin boundaries (layers_bounds in data.layers) have
445        to be set accordingly (i.e., shifted, in sigma scale).
446    o pkg/layers:
447      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
448      - fix calculation of layer non-weighted velocity and layer probability
449      - add diagnostics for pot.density used for layer averaging
450    o pkg/seaice:
451      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
452        positiveness, modify a few comments and improve variable names,
453      - the changed computation of deltaC affects most seaice-related
454        experiments at the truncation level.
455        seaice_itd.thermo is affected by far the most, with
456        only 7 digits of agreement remaining; update experiments.
457    
458    checkpoint65l (2015/05/04)
459    o pkg/shelfice:
460      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
461        factor drKp1 to zero where it is negative (ie. do not use
462        SHELFICEBoundaryLayer if hFacC>1)
463      - the same for factor drLoc in shelfice_forcing.F
464    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
465        with modules in ptracers, when using testreport option "-small_f"
466    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
467      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
468    o verification/testreport
469      - add new option -small_f
470        with this option testreport first makes the target small_f (*.f files)
471        before running make (all). This is useful for explicit inlining when
472        all sources need to be full available.
473    o pkg/exf/exf_interp.F:
474        remove previous changes related to reverse (decreasing) input grids latitude
475    
476    checkpoint65k (2015/04/01)
477    o pkg/ecco:
478        fix missing cosphi initialization; use eccoiter in place of optimcycle;
479        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
480        instead of active read/write
481    o pkg/ctrl:
482        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
483        instead of active read/write.
484    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
485        return if .NOT.useAUTODIFF
486    o pkg/seaice: add CPP brackets (cost function related).
487    o model/src:
488        add useAUTODIFF run time switch.
489    o pkg/exf/exf_interp.F:
490        add code to allow input grids with latitude starting in the north (i.e. when
491        j=1 corresponds to northern edge of field); modify global_with_exf to test
492        this feature.
493    o verification/testreport:
494      - replace "grep -A3" with POSIX conformal sed command, because there are
495        implementations of grep that cannot do contextual searches
496      - replace "cat -n" by "nl" (two occurrences), because not all implementations
497        of "cat" have the option "-n"
498    o model/src:
499        add new file gsw_teos10.F that contains 3 functions, more or less a copy
500        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
501        convert from conservative to potential temperature. For now they are not
502        called anywhere.
503    o pkg/ggl90: make "useIDEMIX" useful
504      - re-organize code in s/r ggl90_calc a little to move computations that
505        are different for idemix into separate loops (changes verification
506        experiment idemix at truncation level, 12 digits remain -> updated)
507      - requires 2 new 2D fields KappaM, verticalShear
508      - make hFacI and recip_hFacI local 3D variables that are passed to
509        s/r ggl90_idemix
510      - fix and improve some comments
511    
512    checkpoint65j (2015/02/25)
513    o pkg/openad
514      - synchronize seawater.F with version in model/src: replace routine
515        body of sw_temp by calling sw_ptmp and fix/add a few comments.
516    o pkg/mnc:
517      - change default value of pickup_read/write_mnc params to FALSE
518        (since few features are missing in reading MNC pickup files).
519    o model/src:
520      - change default (background) vertical diffusivity for salt to be the
521        temperature (background) vertical diffusivity.
522      - change background vertical diffusivity in vertical mixing pkgs ggl90,
523        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
524        This makes ptracers default diffusivity (that uses salt diffKr) more
525        consistent with vertical mixing schemes.
526    o verification/testreport:
527      - fix typo in "-pcls" option ;
528      - put temp files in /tmp (instead of in local dir)
529      - add option "-ncad" to use genmake2 new option "-nocat4ad"
530      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
531    o pkg/ggl90 (idemix code):
532      - apply few fixes ; add some missing "_d 0" ; update output of exp.
533        global_ocean.90x40x15.idemix
534    o OpenAD
535      - enable active file I/O and begin removal of work-around code
536        for OpenAD for handling control variables (memory vs. active files)
537      - new CPP options file OPENAD_OPTIONS.h
538      - revert to genarr2d gradient check for hs94.1x64x5
539      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
540      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
541    o tools/genmake2:
542      - add option for an alternative Makefile (from Martin) where multiple
543        source files are sent to TAF (instead of all in one file).
544    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
545      - code provided by Carsten Eden as an extension of ggl90
546      - so far the code is turned on within ggl90 by setting a CPP-flag at
547        compile time; a runtime flag implementation is not yet complete
548      - tested in new verification experiment global_ocean.90x40x15.idemix
549    o verification:
550      - reduce length of the AD test run by half for experiments
551        global_ocean.cs32x15 (std + thsice) and isomip
552      - enable active file I/O for OpenAD, adjust verifications accordingly
553      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
554    o verification/testreport:
555      - fix two non-POSIX sed statements so that there are no error messages
556        on Mac OS X
557      - replace hostname -s with hostname | sed 's/\..*$//'
558    o model/src/seawater.F:
559      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
560        (following the matlab code), which would have avoided the bug caught
561        by Matt (see below) in the first place
562    o pkg/shelfice:
563      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
564        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
565      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
566        ice-shelf case (i.e., within surface level).
567      - add config summary in shelfice_check.F
568      - remove global variable recip_SHELFICElatentHeat and replace by a local
569        variable recip_latentHeat
570      - introduce diagnostics for friction velocity uStar (in case of
571        SHELFICEuseGammaFrict)
572      - change verification experiment isomip.htd:
573        + start from pickup (as input_ad at nIter0=8640)
574        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
575        + test SHELFICEuseGammaFrict = .TRUE.
576        + test SHELFICEadvDiffHeatFlux = .TRUE.
577    o model/src:
578      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
579        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
580        update output of experiments global_with_exf.yearly and isomip (all 6).
581    o pkg/shelfice:
582      - change setting of kTopC to also be zero where there is no ice-shelf.
583      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
584        ice-shelf is.
585      - first attempt to get RealFreshWaterFlux effects: for now, only without
586        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
587    o pkg/seaice: add the option to prescribe a fixed thickness PDF
588      for thermodynamic calculations
589      - because of divisions of the type 7/7 not exactly equal to 1, this change
590        affects results of some verification experiments by up to 4 digits:
591        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
592        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
593        adjoint: lab_sea, lab_sea.noseaicedyn
594        -> updated
595    
596    checkpoint65i (2015/01/23)
597    o model/src:
598      - change units of frictionHeating field from W to W/m^2
599      - fix bug in frictional heating from stratospheric drag in
600        S/R ATM_PHYS_TENDENCY_APPLY_V
601      - with synchronous time-stepping: move resetting to zero of frictionHeating
602        field from load_fields_driver.F to thermodynamics.F ;
603      - add diagnostics for frictional heating.
604    o model/src & gmredi K3D:
605      - add frictionHeating field to pickup-files (for synchronous time-stepping)
606      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
607      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
608        and name in pickup file).
609      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
610    o model/src:
611      - move (from ini_forcing.F) initialisation of all arrays in header file
612        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
613        (since Nov 2012) with option selectAddFluid=1.
614    o pkg/shelfice:
615      - change units (+ document) of newly added field "shelfIceMassDynTendency"
616      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
617    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
618    o pkg/seaice: two new runtime parameters:
619      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
620        long overdue
621      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
622        parameterization of tensil stress for fast ice (does not do anything yet)
623    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
624        for LSR: move checking overlaps out of JFNK-if-block
625    o pkg/atm_phys:
626      - move copy of grid and dynamical fields out of atm_phys_driver.F into
627        new S/R ATM_PHYS_DYN2PHYS.
628      - fix level height for Linear Free-Surf case (to be consistent with
629        fixed-in-time pressure levels).
630    o pkg/mom_common (bottomdrag):
631      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
632        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
633        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
634    o pkg/shelfice (u/v_drag):
635      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
636      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
637        (now similar to shelfice_u_drag.F)
638      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
639        from mom_vecinv.F (similar to mom_fluxform calls).
640    o pkg/mom_common (bottomdrag):
641      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
642      - add options for alternative discretisation of velocity norm in quadratic
643        bottom drag: averaging of grid-cell-center KE to U.point and V.point
644        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
645        improves when averaging only the other component (e.g. vVel for U bottom
646        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
647      - add options (bottomVisc_pCell) to account for partial-cell in bottom
648        friction (no-slip BC) thus getting the true distance from the bottom;
649        off by default since this also reduces model stability (explicit bottom
650        friction). Changes produce different machine truncation with linear-drag
651        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
652        front_relax (bvp & mxl, 10 & 11 digits).
653    o model/src & mom pkgs:
654      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
655        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
656      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
657        just copy level Nr value to level Nr+1.
658    o doc:
659      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
660    o pkg/streamice:
661      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
662        SHELFICE.h: move array shelficemass to init_varia, initialise
663        from array shelficemassinit, which is set in init_fixed and
664        has option to be set from file; introduce array
665        shelficeMassDynTend array, set thru file in init_fixed
666      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
667        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
668        pkg/streamice
669      - shelfice_thermodynamics.F: call shelfice_step_icemass if
670        SHELFICEMassStepping = .true.
671      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
672    
673    checkpoint65h (2014/12/17)
674    o verification/global_ocean.90x40x15, global_ocean_ebm:
675      - update to generic controls.
676    o pkg/ctrl:
677      - ctrl_map_ini_genarr.F: test for igen>0
678      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
679      - move gentim2d part of ctrl_map_ini_genarr.F to
680        new separate routine : ctrl_map_ini_gentim2d.F
681      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
682        add time variable weights and cyclic controls (time mean,
683        seasonal cycle, etc) capabilities to gentim2d
684    o pkg/ecco:
685      - move reading of error, conversion to weights from
686        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
687    o global_oce_llc90, cs32:
688      - activte sbo.
689      - CTRL_SIZE.h : add maxCtrlProc.
690      - activate the new genctrl capabilities.
691      - update following reorganization of global_oce_input_fields.tar.gz  
692    o pkg/ctrl/ctrl_ad_diff.list:
693      - add missing ctrl_init_rec.f
694    o tools/OAD_support/keepOriginal:
695      - add ctrl_init_rec.F
696    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
697      - avoid recomputations of xx_gentim2d_dummy.
698    o momentum diagnostics:
699      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
700        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
701    o pkg/seaice/seaice_lsr.F:
702      - fix computation of BU/BV, make sure they are non-zero, only necessary
703        for cubed sphere exchanges and SEAICE_OLx/y>0.
704        This makes calling s/r fill_cs_corner_rl obsolete (removed).
705    o verification/global_ocean.cs32x15/input.seaice
706      - add test for strong implicit coupling and restricted addtive Schwarz
707        methods for LSR
708      - update results/output.seaice.txt
709    o verification/tutorial_global_oce_biogeo:
710      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
711        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
712        update output_adm,_oadm,_tlm.txt
713    o pkg/dic:
714      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
715      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
716        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
717    o verification/tutorial_global_oce_biogeo:
718      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
719        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
720        update output_adm,_oadm,_tlm.txt
721    o eesupp/src:
722      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
723        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
724    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
725      LSR (following Hutchings et al. 2004)
726      - introduce zetaZ as a global variable (requires adjustments in
727        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
728        in seaice_calc_viscosities.F
729      - new flag SEAICEuseStrImpCpl (default off)
730      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
731        momentum equations
732      - JFNK-solver (preconditioner) adjusted to allow using this method
733        (where it does not have any positive effect)
734    o pkg/seaice
735      - add overlap for restrictive additive Schwartz method also to LSR, but
736        turn it off by default (because it only seems to work for non-cubed
737        sphere/llc topologies)
738    o pkg/autodiff
739      - add extra exchanges in addummy_in_steppging also for mnc output
740    o pkg/seaice:
741      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
742        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
743    o pkg/obcs:
744      - add option to specify domain-connected piece Id along OB though files
745        (for now, only used to diagnose PhiVel; default =1 -> global correction)
746      - modify obcs_diag_balance.F to process each connected-part separately;
747        exclude OB where Id = 0 but keep the full divergence there (-> constant
748        Psi along this portion of OB and all inflow derived from grad(Phi))
749      - add example of OB-conect files in verification/so_box_biogeo/input.
750    o pkg/diagnostics:
751      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
752      a) use non zero matrix element across OB and solve for Phi 1 grid point
753         outside OB (i.e, where tracer OBCS are applied).
754      b) global imbalance of inFlow/outFlow across OB: instead of modifying
755         velocity across OB, spread it uniformly along the OB in the RHS.
756    
757  checkpoint65g (2014/11/19)  checkpoint65g (2014/11/19)
758  o pkg/diagnostcis:  o pkg/diagnostcis:
759    - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param    - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param

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