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revision 1.2151 by jmc, Wed May 13 21:39:51 2015 UTC revision 1.2223 by jmc, Wed Jan 13 14:53:48 2016 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint65s (2016/01/13)
8    o eesupp & genmake2:
9       - first check for Function ETIME and, if it fails, then check for subroutine
10         ETIME and consistent output; use the appropriate version in timers.F
11    o model/src:
12      - to check restart test, add option to apply EXCH to U,V earlier, just before
13        integr_continuity; turned off by default.
14    o pkg/dic:
15      - remove CPP option USE_ATMOSCO2 (not needed)
16    o tools/tst_2+2:
17      - try to ignore difference between +0 and -0 in binary file, causing test
18        to fail for no good reason.
19    o eesupp & genmake2:
20      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
21        but also check (in genmake2) that test runs and returns meaningful results.
22    o coupler pkgs:
23      Finish implementation of optionally-exchanged variable switches (started on
24       Nov 12) with addition of few more exchanged fields, including 2-way exchange
25       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
26       advection in OCN component; this requires sequential coupling.
27      coupler (pkg/atm_ocn_coupler):
28      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
29        routines (useful for debug).
30      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
31         flux, DIC fields) if corresponding switch is ON.
32      - add option to export RunOff to OCN (to use for DIC river input)
33      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
34      components (pkg/atm_ & ocn_compon_interf):
35      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
36        optionally exchanged fields; add a check & stop in cpl_readparms.F.
37        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
38        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
39      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
40        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
41      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
42      - hold in common block coupler optionally-exchanged variable switch
43        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
44      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
45        this is intended to replace the OCN cplFldtave.* output files (not updated
46        to contain new additional exchanged fields).
47    o pkg/dic:
48      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
49    o pkg/thsice:
50      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
51        and writing of thsice pickup files.
52    o pkg/atm_compon_interf:
53      - move all field individual export-call out of cpl_export_import_data.F
54        into new S/R ATM_EXPORT_FIELDS
55    o pkg/atm_compon_interf:
56      - store state variables (for now, only thSIce fields) just before beeing
57        exported (in cpl_export_import_data.F, like on ocean side) instead of from
58        atm_store_my_data.F like all exported fluxes.
59      - new version of pickup_cpl: write field names into meta file and read meta
60        file to find field postion in pickup. Also only write/read fields meeded for
61        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
62    o pkg/dic:
63      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
64    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
65        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
66        value can be from domain [0,1] to average between the two methods
67    o pkg/atm_phys:
68      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
69        hold fixed in time).
70    
71    checkpoint65r (2015/12/21)
72    o pkg/seaice:
73        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
74        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
75    o pkg/seaice:
76      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
77        when SEAICEscaleSurfStress=.TRUE.,
78      - apply areaW and areaS in S/R seaice_calc_lhs
79    o pkg/atm_phys:
80      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
81        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
82        for individual contribution (convection, LSC cond, radiation)
83      - add Ruth Geen etal, GRL 2016, radiation optionis (see paper supp.
84        information); activated with: solar_exponent=0. and wv_exponent=-1.
85    o pkg/ggl90:
86      - within IDEMIX add upper limit for horizontal group velocity to
87        avoid instability problems in the explicit horizontal diffusion term for
88        long time steps or high resolution
89    o pkg/diagnostics:
90      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
91        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
92    o testreport:
93      - remove "-v" (verbose option) in default mpirun command.
94    o pkg/seaice/seaice_growth:
95      - catch potential division by zero in ITD code, does not change
96        verification results
97    o pkg/ecco:
98      - retire old codes to the Attic. The calls to retired functions are
99        left in a commented form in case they ever need to be re-activated.
100      - ecco_check.F: issue warning if any old CPP option is
101        defined that corresponds to retired codes -- then stop.
102    o pkg/atm_compon_interf:
103      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
104        coupler: use last time-step value instead of average over cplSendFrq_iter
105        time-step, similar to what is done for seaIceMass.
106        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
107    o eesupp & genmake2:
108      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
109        <= remove until a fix is found for some ifort version on ia32 machine.
110    o pkg/seaice/seaice_evp:
111      - refine residual computation
112    
113    checkpoint65q (2015/11/18)
114    o pkg/seaice/seaice_evp:
115      - fix residual computations so that they no longer affect the actual
116        simulation code
117      - fix seaice_readparams to be able to actually set new parameters
118        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
119    o model/src:
120      - fix wrong truncation (single prec) from "FLOAT" function in expressions
121        like: deltaT*FLOAT(myIter) when myIter is large:
122         a) replaced by DFLOAT (if not seen by TAF);
123         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
124    o pkg/aim_v23:
125      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
126        when pickupSuff is set ; do write rolling pickups + at the end of the run.
127    o pkg/atm_ocn_coupler + ocn_compon_interf:
128      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
129        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
130        add corresponding call in DO_OCEANIC_PHYS.
131    o coupler pkgs:
132      Start a new way to set-up optionally-exchanged variables (previously, only
133       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
134       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
135       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
136       compononent param default can be set accordingly).
137      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
138       but rather applies to a group a fields (going both ways like for DIC)
139       and corresponds to an option of coupling config.
140      coupler (pkg/atm_ocn_coupler):
141      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
142        and read namelist directly (without eessup S/R calls) instead of
143        in the very un-flexible old way, 1 param per line, in fixed order;
144      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
145        cleanly in CPL_CHECK_CPLCONFIG
146      - add new coupling-exchange selectors (some not yet active) including
147        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
148                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
149      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
150        component ; called directly from coupler.F, after comp. registrations;
151      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
152         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
153          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
154      components (pkg/atm_ & ocn_compon_interf):
155      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
156        CPP header file in all pkg source files.
157      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
158        ATM/OCN_CHECK_CPLCONFIG;
159      - add error-counter to track errors (e.g., in "data.cpl") and to stop
160        cleanly in ATM/OCN_CHECK_CPLCONFIG;
161      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
162        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
163        before PACKAGES_READPARMS;
164      verification/cpl_aim+ocn/:
165      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
166        "data.cpl" for coupler (in input_cpl).
167    o eesupp/inc:
168      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
169        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
170        to always cumulate tile local-sum in the same order (still uses
171        MPI_Allreduce like standard code).
172      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
173        that are now identical to standard version (in eesupp/inc).
174    o pkg/shelfice:
175      - add SHELFICETransCoeffTFile for initializing spatially varying
176        heat and salt transfer coefficients
177    o pkg/atm_compon_interf & ocn_compon_interf:
178      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
179        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
180      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
181    o pkg/atm_ocn_coupler:
182      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
183    o pkg/rbcs:
184      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
185        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
186      - add a short report (to STDOUT) about RBCS-mask settings.
187    
188    checkpoint65p (2015/10/23)
189    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
190        there is no adjoint test for EVP, we don't know what it does to the adjoint
191        solution, but at least there are no more recomputation warnings left
192    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
193        a chance of giving the same results as a fully converged VP (JFNK) solver
194    o tools/adjoint_options/adjoint_diva:
195      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
196    o pkg/streamice:
197      - spotted bug in streamice_driving_stress using dyG where should have been dxG
198    o pkg/exf:
199      - remove STOP statement that prevented to use wind or (wind-)stress
200        interpolation for constant-in-time forcing fields (wind/stress period = 0).
201    o pkg/seaice:
202      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
203        5 additionals 2D fields and 6 new store directives
204      - change logic in seaice_readparms.F: EVP code can now be turned on in
205        various ways, setting SEAICE_deltaTev is no longer required,
206        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
207        or SEAICEaEVPcoeff
208    o pkg/shelfice/shelfice_thermodynamics.F
209      - redefining uLoc/vLoc to u/v, instead of 2u/v
210    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
211      - this is an intermediate state of a truely converging EVP that has
212        the potential of outperforming implicit VP methods, I do not recommend
213        using it yet.
214      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
215        and all parameters are hardwired
216      - for convergence it still requires very smooth regularisations, that means,
217        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
218        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
219        specific averaging appears to be required, still subject to tuning
220      - still needs cleaning and I need to turn parameter into runtime parameters
221      - add code to compute and print residuals of iteration, compile with
222        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
223    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
224      that entered with r1.54 on Sep04, 2015, -> update results
225    
226    checkpoint65o (2015/09/14)
227    o pkg/mom_vecinv & mom_common:
228      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
229        called from there.
230      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
231        allows to use Vector-Invariant form in deep atmos and anelastic formulation
232    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
233      and Koenig-Beatty+Holland (2012)
234      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
235      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
236      - requires an extra input argument for S/R seaice_calc_viscosities
237      - tensileStrength's depth dependence is different from Itkin et al. (2015)
238        (to be changed and played with, for now exponential)
239    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
240      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
241        by AREA according to Connelly et al. (2004), JPO.
242      - For EVP and the LSR solver, the implicit part of the drag term is
243        the only non-zero term in the denominator when there is no ice (which
244        prevented running the model with zero ice-ocean drag). If
245        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
246        (or zero main diagonals BU/BV) which need to be caught. A practical
247        consequence is that for open water, the momentum equation reduce
248        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
249        they happen to be zero, often leading to a non-zero solution over
250        open water.
251    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
252        efficient EVP method.
253      - introduce area-weighted averages for e12 (analogously to
254        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
255        remain, but also changing the order of terms in the previous average
256        changed the results as much) -> update experiment
257      - add SEAICE_DELTA_SMOOTHREG code
258      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
259        TEM-code
260      - adjust loop bounds so that only required fields are computed
261      - add new averaging code for zetaZ/deltaZ (again similar to
262        seaice_calc_viscosities.F), inactive by default for now (will change
263        results again), but will replace old code eventually
264    o eesupp/src:
265      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
266        to always cumulate tile local-sum in the same order
267        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
268        Still uses MPI_Allreduce (like standard code) but on array of tiles
269        and should be faster than GLOBAL_SUM_SEND_RECV code.
270      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
271        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
272      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
273         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
274         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
275         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
276         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
277    
278    checkpoint65n (2015/07/29)
279    o pkg/thsice:
280      - add a warning when used with pkg/aim but without updating SST
281        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
282    o pkg/offline:
283      - change where Offline-Fields are loaded, from load_fields_driver.F to
284        directly within FORWARD_STEP, just after updating iter number and time;
285      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
286        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
287       These changes allow:
288        a) to recover exactly on-line results using deltaToffline=deltaTClock,
289        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
290        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
291        time-step, both with GM & KPP files and with recomputing these fields;
292        b) no needs to switch on staggerTimeStep anymore;
293        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
294      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
295    o pkg/offline:
296      - change (rarely used) offset-iteration parameter to an offset time (in s):
297        can easily recover previous offset-iter effect by setting offset-time
298        (offlineTimeOffset) to offset-iter x deltaToffline;
299      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
300        in KPP as part of surface buoyancy forcing) in offline run.
301      - fix ptracers KPP non-local term in the case where KPP is re-computed.
302    o OpenAD
303      - Adding preliminary ggl90 test to OpenAD verification.
304        Config. with ggl90 currently diverges after 64 time steps
305        so will need more work to become more stable
306      - Adding preliminary kpp test to OpenAD verification.
307        required small tweakes in kpp_routines.F
308      - Merge and update from Krishna Narayanan's contrib area:
309        * Add one variable for preliminary OpenAD DIVA
310        * Add replacement time-stepping for OpenAD DIVA
311        * genmake2 flag -diva (but only for OpenAD; preliminary)
312        * required modifs for OAD_support
313        successful preliminary test for tutorial_global_oce_biogeo/
314    o pkg/seaice:
315      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
316      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
317        delta with a smooth function in s/r seaice_calc_viscosity
318        (no effect on EVP)
319      - rename local suffix "sqr" into "sq" for more consistent variable names
320    o pkg/seaice:
321        add new parameter SEAICE_deltaMin that is used ***only***
322        for regularizing Delta (and nothing else, like the parameter
323        which is also used for all sorts of things SEAICE_EPS).
324        Defaults to SEAICE_EPS for backward compatibility only.
325    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
326        the wrong key by inialising it before use -> fixes a recomputation
327        problem but does not fix the gradient
328    o pkg/layers:
329      - move resetting of flux arrays to outside the iLa loop
330        (this caused layers_diapycnal to not work with more than one layer coord.)
331      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
332    o pkg/layers:
333      - remove from common block 3D layers fields (used to diagnose transport
334        in tracer coords) and declare them as local arrays in layers_calc.F
335    o pkg/seaice:
336      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
337        in lab_sea forward experiment (changes results -> updated)
338      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
339    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
340       computations; for SEAICE_VECTORIZE_LSR
341      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
342        sweep to the outside,
343      - remove store directives and add "CADJ loop sequential" directives
344        in analogy to model/src/solve_tridiagonal.F
345      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
346        boundaries to yield more readable code. This has also the charming side
347        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
348        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
349        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
350        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
351        an additional option)
352       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
353       but the adjoint gradients (which are affected by this change) still explode.
354    o coupler (atm & ocn _compon_interf):
355      - avoid using Exch2 IO mapping if not suitable.
356    
357    checkpoint65m (2015/06/15)
358    o pkg/layers:
359      - clean-up old parameters setting (from Sep 2012):
360        + remove old parameters setting from common block (declared locally);
361        + stop if any old parameter is mixed with new parameters;
362        + check for valid or consistent parameter setting (e.g., layers_name)
363      - check that layers_bounds for Pot.Density are in the right range;
364        this is supposed to catch un-updated setting after recently shifting
365        potential density field "prho" by -1000 (now in "sigma" scale).
366    o pkg/layers:
367      - Added missing call to layers_fill for keeping track of tottend in
368        pkg/diagnostics/diagnostics_fill_state.F
369    o pkg/layers:
370      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
371        of diapycnal fluxes
372    o pkg/layers:
373      - reverted changes to interpolation to previous treatment; there
374        was never actually a problem
375    o pkg/layers:
376      - fix interpolation of layers tracers in the presence of partial cells
377      - add lots of new functionality to compute water mass transformation
378        (enabled by CPP flag LAYERS_THERMODYNAMICS)
379      - add new calls from main code (diags_oceanic_surf_flux.F,
380        thermodynamics.F, impldiff.F) and gad to save the necessary fields
381        for layers_thermodynamics calculations
382    o pkg/ptracers:
383      - add capability of stepping a passive tracer forward without advection
384        by setting PTRACERS_advScheme to 0.
385    o pkg/diagnostics:
386      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
387  o pkg/layers:  o pkg/layers:
388    - shift potential density field "prho" by -1000 for density layer averaging so    - shift potential density field "prho" by -1000 for density layer averaging so
389      that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);      that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);

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