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revision 1.2139 by mlosch, Tue Mar 3 15:57:00 2015 UTC revision 1.2208 by jmc, Tue Dec 8 19:30:55 2015 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/diagnostics:
8      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
9        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
10    o testreport:
11      - remove "-v" (verbose option) in default mpirun command.
12    o pkg/seaice/seaice_growth:
13      - catch potential division by zero in ITD code, does not change
14        verification results
15    o pkg/ecco:
16      - retire old codes to the Attic. The calls to retired functions are
17        left in a commented form in case they ever need to be re-activated.
18      - ecco_check.F: issue warning if any old CPP option is
19        defined that corresponds to retired codes -- then stop.
20    o pkg/atm_compon_interf:
21      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
22        coupler: use last time-step value instead of average over cplSendFrq_iter
23        time-step, similar to what is done for seaIceMass.
24        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
25    o eesupp & genmake2:
26      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
27        <= remove until a fix is found for some ifort version on ia32 machine.
28    o pkg/seaice/seaice_evp:
29      - refine residual computation
30    
31    checkpoint65q (2015/11/18)
32    o pkg/seaice/seaice_evp:
33      - fix residual computations so that they no longer affect the actual
34        simulation code
35      - fix seaice_readparams to be able to actually set new parameters
36        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
37    o model/src:
38      - fix wrong truncation (single prec) from "FLOAT" function in expressions
39        like: deltaT*FLOAT(myIter) when myIter is large:
40         a) replaced by DFLOAT (if not seen by TAF);
41         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
42    o pkg/aim_v23:
43      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
44        when pickupSuff is set ; do write rolling pickups + at the end of the run.
45    o pkg/atm_ocn_coupler + ocn_compon_interf:
46      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
47        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
48        add corresponding call in DO_OCEANIC_PHYS.
49    o coupler pkgs:
50      Start a new way to set-up optionally-exchanged variables (previously, only
51       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
52       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
53       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
54       compononent param default can be set accordingly).
55      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
56       but rather applies to a group a fields (going both ways like for DIC)
57       and corresponds to an option of coupling config.
58      coupler (pkg/atm_ocn_coupler):
59      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
60        and read namelist directly (without eessup S/R calls) instead of
61        in the very un-flexible old way, 1 param per line, in fixed order;
62      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
63        cleanly in CPL_CHECK_CPLCONFIG
64      - add new coupling-exchange selectors (some not yet active) including
65        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
66                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
67      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
68        component ; called directly from coupler.F, after comp. registrations;
69      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
70         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
71          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
72      components (pkg/atm_ & ocn_compon_interf):
73      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
74        CPP header file in all pkg source files.
75      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
76        ATM/OCN_CHECK_CPLCONFIG;
77      - add error-counter to track errors (e.g., in "data.cpl") and to stop
78        cleanly in ATM/OCN_CHECK_CPLCONFIG;
79      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
80        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
81        before PACKAGES_READPARMS;
82      verification/cpl_aim+ocn/:
83      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
84        "data.cpl" for coupler (in input_cpl).
85    o eesupp/inc:
86      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
87        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
88        to always cumulate tile local-sum in the same order (still uses
89        MPI_Allreduce like standard code).
90      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
91        that are now identical to standard version (in eesupp/inc).
92    o pkg/shelfice:
93      - add SHELFICETransCoeffTFile for initializing spatially varying
94        heat and salt transfer coefficients
95    o pkg/atm_compon_interf & ocn_compon_interf:
96      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
97        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
98      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
99    o pkg/atm_ocn_coupler:
100      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
101    o pkg/rbcs:
102      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
103        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
104      - add a short report (to STDOUT) about RBCS-mask settings.
105    
106    checkpoint65p (2015/10/23)
107    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
108        there is no adjoint test for EVP, we don't know what it does to the adjoint
109        solution, but at least there are no more recomputation warnings left
110    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
111        a chance of giving the same results as a fully converged VP (JFNK) solver
112    o tools/adjoint_options/adjoint_diva:
113      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
114    o pkg/streamice:
115      - spotted bug in streamice_driving_stress using dyG where should have been dxG
116    o pkg/exf:
117      - remove STOP statement that prevented to use wind or (wind-)stress
118        interpolation for constant-in-time forcing fields (wind/stress period = 0).
119    o pkg/seaice:
120      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
121        5 additionals 2D fields and 6 new store directives
122      - change logic in seaice_readparms.F: EVP code can now be turned on in
123        various ways, setting SEAICE_deltaTev is no longer required,
124        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
125        or SEAICEaEVPcoeff
126    o pkg/shelfice/shelfice_thermodynamics.F
127      - redefining uLoc/vLoc to u/v, instead of 2u/v
128    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
129      - this is an intermediate state of a truely converging EVP that has
130        the potential of outperforming implicit VP methods, I do not recommend
131        using it yet.
132      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
133        and all parameters are hardwired
134      - for convergence it still requires very smooth regularisations, that means,
135        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
136        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
137        specific averaging appears to be required, still subject to tuning
138      - still needs cleaning and I need to turn parameter into runtime parameters
139      - add code to compute and print residuals of iteration, compile with
140        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
141    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
142      that entered with r1.54 on Sep04, 2015, -> update results
143    
144    checkpoint65o (2015/09/14)
145    o pkg/mom_vecinv & mom_common:
146      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
147        called from there.
148      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
149        allows to use Vector-Invariant form in deep atmos and anelastic formulation
150    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
151      and Koenig-Beatty+Holland (2012)
152      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
153      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
154      - requires an extra input argument for S/R seaice_calc_viscosities
155      - tensileStrength's depth dependence is different from Itkin et al. (2015)
156        (to be changed and played with, for now exponential)
157    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
158      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
159        by AREA according to Connelly et al. (2004), JPO.
160      - For EVP and the LSR solver, the implicit part of the drag term is
161        the only non-zero term in the denominator when there is no ice (which
162        prevented running the model with zero ice-ocean drag). If
163        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
164        (or zero main diagonals BU/BV) which need to be caught. A practical
165        consequence is that for open water, the momentum equation reduce
166        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
167        they happen to be zero, often leading to a non-zero solution over
168        open water.
169    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
170        efficient EVP method.
171      - introduce area-weighted averages for e12 (analogously to
172        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
173        remain, but also changing the order of terms in the previous average
174        changed the results as much) -> update experiment
175      - add SEAICE_DELTA_SMOOTHREG code
176      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
177        TEM-code
178      - adjust loop bounds so that only required fields are computed
179      - add new averaging code for zetaZ/deltaZ (again similar to
180        seaice_calc_viscosities.F), inactive by default for now (will change
181        results again), but will replace old code eventually
182    o eesupp/src:
183      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
184        to always cumulate tile local-sum in the same order
185        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
186        Still uses MPI_Allreduce (like standard code) but on array of tiles
187        and should be faster than GLOBAL_SUM_SEND_RECV code.
188      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
189        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
190      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
191         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
192         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
193         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
194         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
195    
196    checkpoint65n (2015/07/29)
197    o pkg/thsice:
198      - add a warning when used with pkg/aim but without updating SST
199        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
200    o pkg/offline:
201      - change where Offline-Fields are loaded, from load_fields_driver.F to
202        directly within FORWARD_STEP, just after updating iter number and time;
203      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
204        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
205       These changes allow:
206        a) to recover exactly on-line results using deltaToffline=deltaTClock,
207        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
208        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
209        time-step, both with GM & KPP files and with recomputing these fields;
210        b) no needs to switch on staggerTimeStep anymore;
211        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
212      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
213    o pkg/offline:
214      - change (rarely used) offset-iteration parameter to an offset time (in s):
215        can easily recover previous offset-iter effect by setting offset-time
216        (offlineTimeOffset) to offset-iter x deltaToffline;
217      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
218        in KPP as part of surface buoyancy forcing) in offline run.
219      - fix ptracers KPP non-local term in the case where KPP is re-computed.
220    o OpenAD
221      - Adding preliminary ggl90 test to OpenAD verification.
222        Config. with ggl90 currently diverges after 64 time steps
223        so will need more work to become more stable
224      - Adding preliminary kpp test to OpenAD verification.
225        required small tweakes in kpp_routines.F
226      - Merge and update from Krishna Narayanan's contrib area:
227        * Add one variable for preliminary OpenAD DIVA
228        * Add replacement time-stepping for OpenAD DIVA
229        * genmake2 flag -diva (but only for OpenAD; preliminary)
230        * required modifs for OAD_support
231        successful preliminary test for tutorial_global_oce_biogeo/
232    o pkg/seaice:
233      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
234      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
235        delta with a smooth function in s/r seaice_calc_viscosity
236        (no effect on EVP)
237      - rename local suffix "sqr" into "sq" for more consistent variable names
238    o pkg/seaice:
239        add new parameter SEAICE_deltaMin that is used ***only***
240        for regularizing Delta (and nothing else, like the parameter
241        which is also used for all sorts of things SEAICE_EPS).
242        Defaults to SEAICE_EPS for backward compatibility only.
243    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
244        the wrong key by inialising it before use -> fixes a recomputation
245        problem but does not fix the gradient
246    o pkg/layers:
247      - move resetting of flux arrays to outside the iLa loop
248        (this caused layers_diapycnal to not work with more than one layer coord.)
249      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
250    o pkg/layers:
251      - remove from common block 3D layers fields (used to diagnose transport
252        in tracer coords) and declare them as local arrays in layers_calc.F
253    o pkg/seaice:
254      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
255        in lab_sea forward experiment (changes results -> updated)
256      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
257    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
258       computations; for SEAICE_VECTORIZE_LSR
259      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
260        sweep to the outside,
261      - remove store directives and add "CADJ loop sequential" directives
262        in analogy to model/src/solve_tridiagonal.F
263      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
264        boundaries to yield more readable code. This has also the charming side
265        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
266        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
267        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
268        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
269        an additional option)
270       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
271       but the adjoint gradients (which are affected by this change) still explode.
272    o coupler (atm & ocn _compon_interf):
273      - avoid using Exch2 IO mapping if not suitable.
274    
275    checkpoint65m (2015/06/15)
276    o pkg/layers:
277      - clean-up old parameters setting (from Sep 2012):
278        + remove old parameters setting from common block (declared locally);
279        + stop if any old parameter is mixed with new parameters;
280        + check for valid or consistent parameter setting (e.g., layers_name)
281      - check that layers_bounds for Pot.Density are in the right range;
282        this is supposed to catch un-updated setting after recently shifting
283        potential density field "prho" by -1000 (now in "sigma" scale).
284    o pkg/layers:
285      - Added missing call to layers_fill for keeping track of tottend in
286        pkg/diagnostics/diagnostics_fill_state.F
287    o pkg/layers:
288      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
289        of diapycnal fluxes
290    o pkg/layers:
291      - reverted changes to interpolation to previous treatment; there
292        was never actually a problem
293    o pkg/layers:
294      - fix interpolation of layers tracers in the presence of partial cells
295      - add lots of new functionality to compute water mass transformation
296        (enabled by CPP flag LAYERS_THERMODYNAMICS)
297      - add new calls from main code (diags_oceanic_surf_flux.F,
298        thermodynamics.F, impldiff.F) and gad to save the necessary fields
299        for layers_thermodynamics calculations
300    o pkg/ptracers:
301      - add capability of stepping a passive tracer forward without advection
302        by setting PTRACERS_advScheme to 0.
303    o pkg/diagnostics:
304      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
305    o pkg/layers:
306      - shift potential density field "prho" by -1000 for density layer averaging so
307        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
308        Note that density bin boundaries (layers_bounds in data.layers) have
309        to be set accordingly (i.e., shifted, in sigma scale).
310    o pkg/layers:
311      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
312      - fix calculation of layer non-weighted velocity and layer probability
313      - add diagnostics for pot.density used for layer averaging
314    o pkg/seaice:
315      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
316        positiveness, modify a few comments and improve variable names,
317      - the changed computation of deltaC affects most seaice-related
318        experiments at the truncation level.
319        seaice_itd.thermo is affected by far the most, with
320        only 7 digits of agreement remaining; update experiments.
321    
322    checkpoint65l (2015/05/04)
323    o pkg/shelfice:
324      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
325        factor drKp1 to zero where it is negative (ie. do not use
326        SHELFICEBoundaryLayer if hFacC>1)
327      - the same for factor drLoc in shelfice_forcing.F
328    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
329        with modules in ptracers, when using testreport option "-small_f"
330    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
331      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
332    o verification/testreport
333      - add new option -small_f
334        with this option testreport first makes the target small_f (*.f files)
335        before running make (all). This is useful for explicit inlining when
336        all sources need to be full available.
337    o pkg/exf/exf_interp.F:
338        remove previous changes related to reverse (decreasing) input grids latitude
339    
340    checkpoint65k (2015/04/01)
341    o pkg/ecco:
342        fix missing cosphi initialization; use eccoiter in place of optimcycle;
343        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
344        instead of active read/write
345    o pkg/ctrl:
346        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
347        instead of active read/write.
348    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
349        return if .NOT.useAUTODIFF
350    o pkg/seaice: add CPP brackets (cost function related).
351    o model/src:
352        add useAUTODIFF run time switch.
353    o pkg/exf/exf_interp.F:
354        add code to allow input grids with latitude starting in the north (i.e. when
355        j=1 corresponds to northern edge of field); modify global_with_exf to test
356        this feature.
357  o verification/testreport:  o verification/testreport:
358    - replace "grep -A3" with POSIX conformal sed command, because there are    - replace "grep -A3" with POSIX conformal sed command, because there are
359      implementations of grep that cannot do contextual searches      implementations of grep that cannot do contextual searches
360    - replace "cat -n" by "nl" (two occurrences), because not all implementations    - replace "cat -n" by "nl" (two occurrences), because not all implementations
361      of "cat" have the option "-n"      of "cat" have the option "-n"
362  o model/src: add new file gsw_teos10.F that contains  o model/src:
363      3 functions, more or less a copy of the gsw_toolbox.f90 of the TEOS-10      add new file gsw_teos10.F that contains 3 functions, more or less a copy
364      fortran interface, that are used to convert from conservative to      of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
365      potential temperature. For now they are not called anywhere.      convert from conservative to potential temperature. For now they are not
366        called anywhere.
367  o pkg/ggl90: make "useIDEMIX" useful  o pkg/ggl90: make "useIDEMIX" useful
368    - re-organize code in s/r ggl90_calc a little to move computations that    - re-organize code in s/r ggl90_calc a little to move computations that
369      are different for idemix into separate loops (changes verification      are different for idemix into separate loops (changes verification
370      experiment idemix at truncation level, 12 digits remain -> updated)      experiment idemix at truncation level, 12 digits remain -> updated)
371    - requires 2 new 2D fields KappaM, verticalShear    - requires 2 new 2D fields KappaM, verticalShear
372    - make hFacI and recip_hFacI local 3D variables that are passed to    - make hFacI and recip_hFacI local 3D variables that are passed to

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