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revision 1.2173 by jmc, Sat Jul 18 22:15:07 2015 UTC revision 1.2232 by jmc, Thu Feb 4 01:26:54 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 model/src:
8      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
9        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
10        Update output of exp. deep_anelastic (changes at truncation level).
11    o tools:
12      - add a hack in "remove_comments_sed" (used only with TAF) for recent
13        version of OpenMPI (shipped with FC.23): comment out the new header
14        file "mpif-sizeof.h" which causes problems to TAF.
15    o pkg/seaice:
16      - change the termination criterion so that maxits (SEAICElinearIterMax)
17        has an effect
18      - unify iteration parameters for implicit solvers (JFNK and Picard)
19        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
20        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
21        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
22        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
23        SEAICEnonLinTol     replaces JFNKgamma_nonlin
24      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
25      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
26        use with SEAICEuseKrylov
27    o pkg/seaice/seaice_lsr.F
28        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
29        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
30        an effect.
31    o pkg/seaice: add two new parameters
32      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
33        parameter is not in any namelist)
34      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
35        a preconditioner for the non-linear Newton iteration of the JFNK
36        solver
37    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
38      affects some experiments at truncation level:
39      - global_ocean.cs32x15.icedyn (11 digits),
40      - global_ocean.cs32x15.seaice (11 digits),
41      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
42      - also update global_ocean.cs32x15 adjoint and tangent-linear results
43    o pkg/salt_plume & pkg/thsice:
44      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
45        connect salt_plume flux to ATM-OCN coupling pkgs interface:
46       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
47         export to coupler interface) even without compiling pkg/salt_plume ;
48       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
49         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
50    o pkg/dic:
51      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
52        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
53        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
54      - move also update with values from ATM-OCN Coupler in the same new S/R
55        (previously done in ocn_apply_import.F).
56    o tools/adjoint_options:
57      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
58        has been changed on Jan 14, 2016.
59    o pkg/ggl90:
60      - add alternative discretisation of vertical shear (off by default), to
61        compute the mean (@ grid-cell center) of vertical shear compon instead of
62        vertical shear of mean flow (@ grid-cell center).
63      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
64        results on adjacent faces of cubed-sphere grids; this fix the restart.
65    o pkg/atm_compon_interf:
66      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
67        pass last value, stored directly before export to CPL ;
68        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
69      - remove atmSLPr from pickup files (no longer needed for restart)
70    
71    checkpoint65s (2016/01/13)
72    o eesupp & genmake2:
73       - first check for Function ETIME and, if it fails, then check for subroutine
74         ETIME and consistent output; use the appropriate version in timers.F
75    o model/src:
76      - to check restart test, add option to apply EXCH to U,V earlier, just before
77        integr_continuity; turned off by default.
78    o pkg/dic:
79      - remove CPP option USE_ATMOSCO2 (not needed)
80    o tools/tst_2+2:
81      - try to ignore difference between +0 and -0 in binary file, causing test
82        to fail for no good reason.
83    o eesupp & genmake2:
84      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
85        but also check (in genmake2) that test runs and returns meaningful results.
86    o coupler pkgs:
87      Finish implementation of optionally-exchanged variable switches (started on
88       Nov 12) with addition of few more exchanged fields, including 2-way exchange
89       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
90       advection in OCN component; this requires sequential coupling.
91      coupler (pkg/atm_ocn_coupler):
92      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
93        routines (useful for debug).
94      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
95         flux, DIC fields) if corresponding switch is ON.
96      - add option to export RunOff to OCN (to use for DIC river input)
97      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
98      components (pkg/atm_ & ocn_compon_interf):
99      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
100        optionally exchanged fields; add a check & stop in cpl_readparms.F.
101        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
102        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
103      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
104        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
105      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
106      - hold in common block coupler optionally-exchanged variable switch
107        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
108      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
109        this is intended to replace the OCN cplFldtave.* output files (not updated
110        to contain new additional exchanged fields).
111    o pkg/dic:
112      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
113    o pkg/thsice:
114      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
115        and writing of thsice pickup files.
116    o pkg/atm_compon_interf:
117      - move all field individual export-call out of cpl_export_import_data.F
118        into new S/R ATM_EXPORT_FIELDS
119    o pkg/atm_compon_interf:
120      - store state variables (for now, only thSIce fields) just before beeing
121        exported (in cpl_export_import_data.F, like on ocean side) instead of from
122        atm_store_my_data.F like all exported fluxes.
123      - new version of pickup_cpl: write field names into meta file and read meta
124        file to find field postion in pickup. Also only write/read fields meeded for
125        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
126    o pkg/dic:
127      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
128    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
129        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
130        value can be from domain [0,1] to average between the two methods
131    o pkg/atm_phys:
132      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
133        hold fixed in time).
134    
135    checkpoint65r (2015/12/21)
136    o pkg/seaice:
137        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
138        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
139    o pkg/seaice:
140      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
141        when SEAICEscaleSurfStress=.TRUE.,
142      - apply areaW and areaS in S/R seaice_calc_lhs
143    o pkg/atm_phys:
144      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
145        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
146        for individual contribution (convection, LSC cond, radiation)
147      - add Ruth Geen etal, GRL 2016, radiation optionis (see paper supp.
148        information); activated with: solar_exponent=0. and wv_exponent=-1.
149    o pkg/ggl90:
150      - within IDEMIX add upper limit for horizontal group velocity to
151        avoid instability problems in the explicit horizontal diffusion term for
152        long time steps or high resolution
153    o pkg/diagnostics:
154      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
155        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
156    o testreport:
157      - remove "-v" (verbose option) in default mpirun command.
158    o pkg/seaice/seaice_growth:
159      - catch potential division by zero in ITD code, does not change
160        verification results
161    o pkg/ecco:
162      - retire old codes to the Attic. The calls to retired functions are
163        left in a commented form in case they ever need to be re-activated.
164      - ecco_check.F: issue warning if any old CPP option is
165        defined that corresponds to retired codes -- then stop.
166    o pkg/atm_compon_interf:
167      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
168        coupler: use last time-step value instead of average over cplSendFrq_iter
169        time-step, similar to what is done for seaIceMass.
170        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
171    o eesupp & genmake2:
172      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
173        <= remove until a fix is found for some ifort version on ia32 machine.
174    o pkg/seaice/seaice_evp:
175      - refine residual computation
176    
177    checkpoint65q (2015/11/18)
178    o pkg/seaice/seaice_evp:
179      - fix residual computations so that they no longer affect the actual
180        simulation code
181      - fix seaice_readparams to be able to actually set new parameters
182        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
183    o model/src:
184      - fix wrong truncation (single prec) from "FLOAT" function in expressions
185        like: deltaT*FLOAT(myIter) when myIter is large:
186         a) replaced by DFLOAT (if not seen by TAF);
187         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
188    o pkg/aim_v23:
189      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
190        when pickupSuff is set ; do write rolling pickups + at the end of the run.
191    o pkg/atm_ocn_coupler + ocn_compon_interf:
192      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
193        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
194        add corresponding call in DO_OCEANIC_PHYS.
195    o coupler pkgs:
196      Start a new way to set-up optionally-exchanged variables (previously, only
197       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
198       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
199       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
200       compononent param default can be set accordingly).
201      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
202       but rather applies to a group a fields (going both ways like for DIC)
203       and corresponds to an option of coupling config.
204      coupler (pkg/atm_ocn_coupler):
205      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
206        and read namelist directly (without eessup S/R calls) instead of
207        in the very un-flexible old way, 1 param per line, in fixed order;
208      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
209        cleanly in CPL_CHECK_CPLCONFIG
210      - add new coupling-exchange selectors (some not yet active) including
211        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
212                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
213      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
214        component ; called directly from coupler.F, after comp. registrations;
215      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
216         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
217          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
218      components (pkg/atm_ & ocn_compon_interf):
219      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
220        CPP header file in all pkg source files.
221      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
222        ATM/OCN_CHECK_CPLCONFIG;
223      - add error-counter to track errors (e.g., in "data.cpl") and to stop
224        cleanly in ATM/OCN_CHECK_CPLCONFIG;
225      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
226        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
227        before PACKAGES_READPARMS;
228      verification/cpl_aim+ocn/:
229      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
230        "data.cpl" for coupler (in input_cpl).
231    o eesupp/inc:
232      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
233        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
234        to always cumulate tile local-sum in the same order (still uses
235        MPI_Allreduce like standard code).
236      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
237        that are now identical to standard version (in eesupp/inc).
238    o pkg/shelfice:
239      - add SHELFICETransCoeffTFile for initializing spatially varying
240        heat and salt transfer coefficients
241    o pkg/atm_compon_interf & ocn_compon_interf:
242      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
243        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
244      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
245    o pkg/atm_ocn_coupler:
246      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
247    o pkg/rbcs:
248      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
249        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
250      - add a short report (to STDOUT) about RBCS-mask settings.
251    
252    checkpoint65p (2015/10/23)
253    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
254        there is no adjoint test for EVP, we don't know what it does to the adjoint
255        solution, but at least there are no more recomputation warnings left
256    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
257        a chance of giving the same results as a fully converged VP (JFNK) solver
258    o tools/adjoint_options/adjoint_diva:
259      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
260    o pkg/streamice:
261      - spotted bug in streamice_driving_stress using dyG where should have been dxG
262    o pkg/exf:
263      - remove STOP statement that prevented to use wind or (wind-)stress
264        interpolation for constant-in-time forcing fields (wind/stress period = 0).
265    o pkg/seaice:
266      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
267        5 additionals 2D fields and 6 new store directives
268      - change logic in seaice_readparms.F: EVP code can now be turned on in
269        various ways, setting SEAICE_deltaTev is no longer required,
270        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
271        or SEAICEaEVPcoeff
272    o pkg/shelfice/shelfice_thermodynamics.F
273      - redefining uLoc/vLoc to u/v, instead of 2u/v
274    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
275      - this is an intermediate state of a truely converging EVP that has
276        the potential of outperforming implicit VP methods, I do not recommend
277        using it yet.
278      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
279        and all parameters are hardwired
280      - for convergence it still requires very smooth regularisations, that means,
281        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
282        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
283        specific averaging appears to be required, still subject to tuning
284      - still needs cleaning and I need to turn parameter into runtime parameters
285      - add code to compute and print residuals of iteration, compile with
286        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
287    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
288      that entered with r1.54 on Sep04, 2015, -> update results
289    
290    checkpoint65o (2015/09/14)
291    o pkg/mom_vecinv & mom_common:
292      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
293        called from there.
294      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
295        allows to use Vector-Invariant form in deep atmos and anelastic formulation
296    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
297      and Koenig-Beatty+Holland (2012)
298      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
299      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
300      - requires an extra input argument for S/R seaice_calc_viscosities
301      - tensileStrength's depth dependence is different from Itkin et al. (2015)
302        (to be changed and played with, for now exponential)
303    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
304      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
305        by AREA according to Connelly et al. (2004), JPO.
306      - For EVP and the LSR solver, the implicit part of the drag term is
307        the only non-zero term in the denominator when there is no ice (which
308        prevented running the model with zero ice-ocean drag). If
309        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
310        (or zero main diagonals BU/BV) which need to be caught. A practical
311        consequence is that for open water, the momentum equation reduce
312        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
313        they happen to be zero, often leading to a non-zero solution over
314        open water.
315    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
316        efficient EVP method.
317      - introduce area-weighted averages for e12 (analogously to
318        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
319        remain, but also changing the order of terms in the previous average
320        changed the results as much) -> update experiment
321      - add SEAICE_DELTA_SMOOTHREG code
322      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
323        TEM-code
324      - adjust loop bounds so that only required fields are computed
325      - add new averaging code for zetaZ/deltaZ (again similar to
326        seaice_calc_viscosities.F), inactive by default for now (will change
327        results again), but will replace old code eventually
328    o eesupp/src:
329      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
330        to always cumulate tile local-sum in the same order
331        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
332        Still uses MPI_Allreduce (like standard code) but on array of tiles
333        and should be faster than GLOBAL_SUM_SEND_RECV code.
334      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
335        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
336      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
337         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
338         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
339         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
340         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
341    
342    checkpoint65n (2015/07/29)
343    o pkg/thsice:
344      - add a warning when used with pkg/aim but without updating SST
345        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
346  o pkg/offline:  o pkg/offline:
347    - change where Offline-Fields are loaded, from load_fields_driver.F to    - change where Offline-Fields are loaded, from load_fields_driver.F to
348      directly within FORWARD_STEP, just after updating iter number and time;      directly within FORWARD_STEP, just after updating iter number and time;
# Line 16  o pkg/offline: Line 355  o pkg/offline:
355      time-step, both with GM & KPP files and with recomputing these fields;      time-step, both with GM & KPP files and with recomputing these fields;
356      b) no needs to switch on staggerTimeStep anymore;      b) no needs to switch on staggerTimeStep anymore;
357      c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.      c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
358    - update output of experiments tutorial_cfc_offline (11 to 13 digits left)    - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
     and tutorial_dic_adjoffline (only 3 digits left).  
359  o pkg/offline:  o pkg/offline:
360    - change (rarely used) offset-iteration parameter to an offset time (in s):    - change (rarely used) offset-iteration parameter to an offset time (in s):
361      can easily recover previous offset-iter effect by setting offset-time      can easily recover previous offset-iter effect by setting offset-time

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