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revision 1.2165 by mlosch, Fri Jun 19 16:19:51 2015 UTC revision 1.2281 by mlosch, Mon Nov 28 15:53:11 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: add linear remapping scheme (Lipscomb 2001) to ITD model
8      - this is a first version that includes many regularisations that may
9        not all be necessary, to be sorted out,
10      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
11      - change one verification experiment in seaice_itd to use and test new code
12      - seaice_growth: catch a case where the argument of log can be zero
13        or smaller (important for code stability)
14    o model/src:
15      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
16        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
17        similar A.X'=Y' system (with same matrix A) in subsequent calls;
18        switch based on errCode (In/Out) argument value; in calling routines,
19        initialise errCode before first call.
20    
21    checkpoint66a (2016/10/18)
22    o pkg/bling:
23      - BLING package now loads in atmospheric pCO2 file using exf package routines
24        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
25    o model/src & pkg/ptracers:
26      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
27        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
28        implicitDiffusion (respectively) are used (even without momImplVertAdv
29        or temp,salt,PTRACERS_ImplVertAdv).
30    o model/src & generic_advdiff:
31      - add parenthesis in main diagonal calculation of implicit vertical
32        diffusion matrix (impldiff.F & gad_implicit_r.F).
33        This affects results at machine truncation level; update output of many
34        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
35    o pkg/mom_commom & generic_advdiff:
36      - add deep atmosphere and anelastic scaling factor in implicit vertical
37        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
38    o model/src:
39      - remove few unnecessary temp array copies in solve_tridiagonal.F
40        & solve_pentadiagonal.F
41    
42    checkpoint65z (2016/09/28)
43    o pkg/seaice: fix multithreading for seaice_fgmres.F
44      - remove unecessary variables from common blocks
45      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
46        basis, that are stored in commom blocks (including integer variable i1)
47      - clean up code a little by removing commented lines that refer to
48        original code
49      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
50    o MITgcm manual:
51      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
52        preliminary documentation for generic controls (8.3; ctrl.tex),
53        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
54        ecco_costfunction.tex
55    o pkg/ecco:
56      - update and cleanup list of CCP options
57      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
58        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
59      - add checks that retired run-time options are not used, and in relation
60        to gencost_mask and gencost_errfile
61      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
62        gencost_nrecperiod
63      - fix m_eta computation for virtual salt flux case
64      - add m_horflux_vol case (selected via gencost_barfile) that computes
65        transports via cost_gencost_boxmean (gencost_flag=-3)
66      - use gencost_flag more systematically (i.e., avoid using gencost_name)
67        for code switches (aside from physical variable selection)
68    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
69      attempt appears to be a bit of a hack and my need some repair down the road
70    o pkg/exf:
71      - interpolation near South Pole: fix criteria on input field latitude.
72    o pkg/icefront & pkg/exf:
73      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
74        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
75    o pkg/exf:
76      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
77        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
78        (add suffix "_out" instead of a prefix); keep same record number as in
79        input file but always write record 1 first (to avoid a STOP in I/O S/R).
80        Change output file content by writing interpolated field before applying
81        land-sea mask (helpful for debug).
82      - 2 compon. vector interpolation with rotation: apply scaling factor on
83        each compon. (Eastward and Northward) just before rotation.
84    o pkg/bling:
85      - Cleaned package. Removed not needed code and comments.
86      - adjoint example now works
87        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
88    o pkg/ptracers:
89      - add Bruno Deremble's code to complete the linear surface correction
90        for tracer conservation;
91      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
92    
93    checkpoint65y (2016/07/29)
94    o pkg/debug (stats):
95      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
96        proc/thread mapping);
97      - fix Min & Max for case where 1 thread has only empty tiles;
98      - use RL variable to count number of wet grid points (with big domain,
99        can be too large to fit into integer*4).
100    o pkg/monitor:
101      - use RL variable to count number of wet grid points (but used only for del2)
102      - add new routine to compute Advective CFL within tracer time-stepping with
103        writing delayed until next monitor output.
104    o pkg/obcs:
105      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
106    o pkg/cal:
107      - calandar-dump: treat case myTime < timePhase in the same way as in
108        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
109    o pkg/dic & seaice:
110      - fix compilation of ocean component for coupled atm+ocn model with
111        seaice dynamics & dic.
112    
113    checkpoint65x (2016/06/11)
114    o add a license text file in main MITgcm tree.
115    o added pkg/bling:
116      - intermediate complexity biogeochemical model
117      - see bling_description.txt for details
118      - verification experiment is global_oce_biogeo_bling (for now, in
119        Contrib/verification_other/); tested daily on baudelaire with gfortran.
120      - add entry point in pkg/gchem for new pkg "bling".
121    o pkg/seaice: fix tensile stength computation
122      - replace global field tensileStrength by tensileStrFac
123      - tensileStrFac can be computed once in S/R seaice_init_varia
124      - fortunately that does not affect any verification results
125    
126    checkpoint65w (2016/05/12)
127    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
128         with ECCO_CTRL_DEPRECATED defined
129    o verification/global_ocean.cs32x15:
130      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
131        with "selectNHfreeSurf=1".
132    o model/src (non-hydrostatic free-surface):
133      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
134        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
135      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
136        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
137        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
138        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
139      - Update output (changes at machine truncation level) of verification exp:
140        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
141        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
142    o pkg/seaice: ITD code
143      - fix picking up from a single category model by initialising
144        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
145      - split a long warning message in seaice_check_pickup.F into two lines,
146        because NEC SX-ACE cannot deal with the long line.
147    o model/src:
148      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
149    o pkg/seaice:
150      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
151    o pkg/seaice:
152      - add basal stress as parameterisation for grounding ice
153        following Lemieux et al. (2015)
154      - turn on by setting new parameter SEAICEbasalDragK2 to a value
155        larger than 0. Lemieux et al. (2015) recommend 15.
156      - The adjoint complains with extra recomputations so there is also a
157        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
158        order to postpone the problem
159      - compile the new code in lab_sea
160    o verification/halfpipe_streamice:
161      - update both TAF and OpenAD adm output (machine truncation differences)
162    
163    checkpoint65v (2016/04/08)
164    o verification/advect_xz:
165      - increase overlap size from 3 to 4 and add new secondary test for PQM
166        advection scheme (with mono & wino limiter).
167      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
168    o model/src:
169      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
170        added phi0Ref) to set vertical axis origin and phiRef origin;
171        keep Ro_SeaLevel for backward compatibility (with a warning).
172       According to coordinate and fluid type:
173        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
174        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
175        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
176        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
177      - remove Ro_SeaLevel from ATM experiment parameter files;
178      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
179        complement; update output.txt (changes at machine truncation level).
180    o pkg/seaice/seaice_evp.F
181      - simplify computation of deltaZ and zetaZ to simple averaging following
182        Bouillon et al. (2013). This removes a lot of code, but also changes
183        verification experiment lab_sea.hb87 -> updated
184    
185    checkpoint65u (2016/03/14)
186    o pkg/generic_advdiff:
187      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
188        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
189        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
190        testing and not for actual use.
191    o model/src:
192      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
193        origin r = rF(1);
194      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
195        in EOS for height coordinate: enable to include NH Pressure or to use
196        more accurate pressure vertical profile; options not linked to EOS type
197        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
198      - start to implement variable gravity (along vertical): for now, only with
199        z-coords (not even z*).
200      - add Ideal Gas equation of state for height coordinate.
201      - update OpenAD output (affected at machine truncation level) of exp:
202        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
203    o pkg/exf:
204      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
205        of exf interpolation (before any rescaling, rotation or interpolation
206        to velocity point) for each field that gets loaded from file. This option
207        identically mimics the input file organization (e.g. record numbers in year
208        by year input files) besides the change in horizontal grid.
209      - add rotateStressOnAgrid run-time switch so that wind stress fields
210        can be provided on the A-grid in zonal/meridional direction and
211        rotated on the fly. This only applies to the case when the exf
212        interpolation is off and rotateStressOnAgrid is false by default.
213    o model/src:
214      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
215        it's also used with pkg/atm_phys) and add few more parameters (but still
216        inactive, src code yet to come)
217    
218    checkpoint65t (2016/02/10)
219    o pkg/atm_phys:
220      - from Ruth Geen: add optical depth dependence on CO2 concentration.
221    o model/src:
222      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
223        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
224        Update output of exp. deep_anelastic (changes at truncation level).
225    o tools:
226      - add a hack in "remove_comments_sed" (used only with TAF) for recent
227        version of OpenMPI (shipped with FC.23): comment out the new header
228        file "mpif-sizeof.h" which causes problems to TAF.
229    o pkg/seaice:
230      - change the termination criterion so that maxits (SEAICElinearIterMax)
231        has an effect
232      - unify iteration parameters for implicit solvers (JFNK and Picard)
233        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
234        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
235        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
236        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
237        SEAICEnonLinTol     replaces JFNKgamma_nonlin
238      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
239      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
240        use with SEAICEuseKrylov
241    o pkg/seaice/seaice_lsr.F
242        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
243        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
244        an effect.
245    o pkg/seaice: add two new parameters
246      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
247        parameter is not in any namelist)
248      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
249        a preconditioner for the non-linear Newton iteration of the JFNK
250        solver
251    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
252      affects some experiments at truncation level:
253      - global_ocean.cs32x15.icedyn (11 digits),
254      - global_ocean.cs32x15.seaice (11 digits),
255      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
256      - also update global_ocean.cs32x15 adjoint and tangent-linear results
257    o pkg/salt_plume & pkg/thsice:
258      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
259        connect salt_plume flux to ATM-OCN coupling pkgs interface:
260       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
261         export to coupler interface) even without compiling pkg/salt_plume ;
262       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
263         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
264    o pkg/dic:
265      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
266        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
267        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
268      - move also update with values from ATM-OCN Coupler in the same new S/R
269        (previously done in ocn_apply_import.F).
270    o tools/adjoint_options:
271      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
272        has been changed on Jan 14, 2016.
273    o pkg/ggl90:
274      - add alternative discretisation of vertical shear (off by default), to
275        compute the mean (@ grid-cell center) of vertical shear compon instead of
276        vertical shear of mean flow (@ grid-cell center).
277      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
278        results on adjacent faces of cubed-sphere grids; this fix the restart.
279    o pkg/atm_compon_interf:
280      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
281        pass last value, stored directly before export to CPL ;
282        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
283      - remove atmSLPr from pickup files (no longer needed for restart)
284    
285    checkpoint65s (2016/01/13)
286    o eesupp & genmake2:
287       - first check for Function ETIME and, if it fails, then check for subroutine
288         ETIME and consistent output; use the appropriate version in timers.F
289    o model/src:
290      - to check restart test, add option to apply EXCH to U,V earlier, just before
291        integr_continuity; turned off by default.
292    o pkg/dic:
293      - remove CPP option USE_ATMOSCO2 (not needed)
294    o tools/tst_2+2:
295      - try to ignore difference between +0 and -0 in binary file, causing test
296        to fail for no good reason.
297    o eesupp & genmake2:
298      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
299        but also check (in genmake2) that test runs and returns meaningful results.
300    o coupler pkgs:
301      Finish implementation of optionally-exchanged variable switches (started on
302       Nov 12) with addition of few more exchanged fields, including 2-way exchange
303       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
304       advection in OCN component; this requires sequential coupling.
305      coupler (pkg/atm_ocn_coupler):
306      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
307        routines (useful for debug).
308      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
309         flux, DIC fields) if corresponding switch is ON.
310      - add option to export RunOff to OCN (to use for DIC river input)
311      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
312      components (pkg/atm_ & ocn_compon_interf):
313      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
314        optionally exchanged fields; add a check & stop in cpl_readparms.F.
315        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
316        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
317      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
318        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
319      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
320      - hold in common block coupler optionally-exchanged variable switch
321        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
322      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
323        this is intended to replace the OCN cplFldtave.* output files (not updated
324        to contain new additional exchanged fields).
325    o pkg/dic:
326      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
327    o pkg/thsice:
328      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
329        and writing of thsice pickup files.
330    o pkg/atm_compon_interf:
331      - move all field individual export-call out of cpl_export_import_data.F
332        into new S/R ATM_EXPORT_FIELDS
333    o pkg/atm_compon_interf:
334      - store state variables (for now, only thSIce fields) just before beeing
335        exported (in cpl_export_import_data.F, like on ocean side) instead of from
336        atm_store_my_data.F like all exported fluxes.
337      - new version of pickup_cpl: write field names into meta file and read meta
338        file to find field postion in pickup. Also only write/read fields meeded for
339        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
340    o pkg/dic:
341      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
342    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
343        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
344        value can be from domain [0,1] to average between the two methods
345    o pkg/atm_phys:
346      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
347        hold fixed in time).
348    
349    checkpoint65r (2015/12/21)
350    o pkg/seaice:
351        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
352        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
353    o pkg/seaice:
354      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
355        when SEAICEscaleSurfStress=.TRUE.,
356      - apply areaW and areaS in S/R seaice_calc_lhs
357    o pkg/atm_phys:
358      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
359        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
360        for individual contribution (convection, LSC cond, radiation)
361      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
362        information); activated with: solar_exponent=0. and wv_exponent=-1.
363    o pkg/ggl90:
364      - within IDEMIX add upper limit for horizontal group velocity to
365        avoid instability problems in the explicit horizontal diffusion term for
366        long time steps or high resolution
367    o pkg/diagnostics:
368      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
369        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
370    o testreport:
371      - remove "-v" (verbose option) in default mpirun command.
372    o pkg/seaice/seaice_growth:
373      - catch potential division by zero in ITD code, does not change
374        verification results
375    o pkg/ecco:
376      - retire old codes to the Attic. The calls to retired functions are
377        left in a commented form in case they ever need to be re-activated.
378      - ecco_check.F: issue warning if any old CPP option is
379        defined that corresponds to retired codes -- then stop.
380    o pkg/atm_compon_interf:
381      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
382        coupler: use last time-step value instead of average over cplSendFrq_iter
383        time-step, similar to what is done for seaIceMass.
384        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
385    o eesupp & genmake2:
386      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
387        <= remove until a fix is found for some ifort version on ia32 machine.
388    o pkg/seaice/seaice_evp:
389      - refine residual computation
390    
391    checkpoint65q (2015/11/18)
392    o pkg/seaice/seaice_evp:
393      - fix residual computations so that they no longer affect the actual
394        simulation code
395      - fix seaice_readparams to be able to actually set new parameters
396        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
397    o model/src:
398      - fix wrong truncation (single prec) from "FLOAT" function in expressions
399        like: deltaT*FLOAT(myIter) when myIter is large:
400         a) replaced by DFLOAT (if not seen by TAF);
401         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
402    o pkg/aim_v23:
403      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
404        when pickupSuff is set ; do write rolling pickups + at the end of the run.
405    o pkg/atm_ocn_coupler + ocn_compon_interf:
406      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
407        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
408        add corresponding call in DO_OCEANIC_PHYS.
409    o coupler pkgs:
410      Start a new way to set-up optionally-exchanged variables (previously, only
411       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
412       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
413       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
414       compononent param default can be set accordingly).
415      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
416       but rather applies to a group a fields (going both ways like for DIC)
417       and corresponds to an option of coupling config.
418      coupler (pkg/atm_ocn_coupler):
419      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
420        and read namelist directly (without eessup S/R calls) instead of
421        in the very un-flexible old way, 1 param per line, in fixed order;
422      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
423        cleanly in CPL_CHECK_CPLCONFIG
424      - add new coupling-exchange selectors (some not yet active) including
425        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
426                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
427      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
428        component ; called directly from coupler.F, after comp. registrations;
429      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
430         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
431          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
432      components (pkg/atm_ & ocn_compon_interf):
433      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
434        CPP header file in all pkg source files.
435      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
436        ATM/OCN_CHECK_CPLCONFIG;
437      - add error-counter to track errors (e.g., in "data.cpl") and to stop
438        cleanly in ATM/OCN_CHECK_CPLCONFIG;
439      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
440        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
441        before PACKAGES_READPARMS;
442      verification/cpl_aim+ocn/:
443      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
444        "data.cpl" for coupler (in input_cpl).
445    o eesupp/inc:
446      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
447        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
448        to always cumulate tile local-sum in the same order (still uses
449        MPI_Allreduce like standard code).
450      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
451        that are now identical to standard version (in eesupp/inc).
452    o pkg/shelfice:
453      - add SHELFICETransCoeffTFile for initializing spatially varying
454        heat and salt transfer coefficients
455    o pkg/atm_compon_interf & ocn_compon_interf:
456      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
457        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
458      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
459    o pkg/atm_ocn_coupler:
460      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
461    o pkg/rbcs:
462      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
463        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
464      - add a short report (to STDOUT) about RBCS-mask settings.
465    
466    checkpoint65p (2015/10/23)
467    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
468        there is no adjoint test for EVP, we don't know what it does to the adjoint
469        solution, but at least there are no more recomputation warnings left
470    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
471        a chance of giving the same results as a fully converged VP (JFNK) solver
472    o tools/adjoint_options/adjoint_diva:
473      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
474    o pkg/streamice:
475      - spotted bug in streamice_driving_stress using dyG where should have been dxG
476    o pkg/exf:
477      - remove STOP statement that prevented to use wind or (wind-)stress
478        interpolation for constant-in-time forcing fields (wind/stress period = 0).
479    o pkg/seaice:
480      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
481        5 additionals 2D fields and 6 new store directives
482      - change logic in seaice_readparms.F: EVP code can now be turned on in
483        various ways, setting SEAICE_deltaTev is no longer required,
484        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
485        or SEAICEaEVPcoeff
486    o pkg/shelfice/shelfice_thermodynamics.F
487      - redefining uLoc/vLoc to u/v, instead of 2u/v
488    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
489      - this is an intermediate state of a truely converging EVP that has
490        the potential of outperforming implicit VP methods, I do not recommend
491        using it yet.
492      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
493        and all parameters are hardwired
494      - for convergence it still requires very smooth regularisations, that means,
495        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
496        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
497        specific averaging appears to be required, still subject to tuning
498      - still needs cleaning and I need to turn parameter into runtime parameters
499      - add code to compute and print residuals of iteration, compile with
500        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
501    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
502      that entered with r1.54 on Sep04, 2015, -> update results
503    
504    checkpoint65o (2015/09/14)
505    o pkg/mom_vecinv & mom_common:
506      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
507        called from there.
508      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
509        allows to use Vector-Invariant form in deep atmos and anelastic formulation
510    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
511      and Koenig-Beatty+Holland (2012)
512      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
513      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
514      - requires an extra input argument for S/R seaice_calc_viscosities
515      - tensileStrength's depth dependence is different from Itkin et al. (2015)
516        (to be changed and played with, for now exponential)
517    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
518      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
519        by AREA according to Connelly et al. (2004), JPO.
520      - For EVP and the LSR solver, the implicit part of the drag term is
521        the only non-zero term in the denominator when there is no ice (which
522        prevented running the model with zero ice-ocean drag). If
523        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
524        (or zero main diagonals BU/BV) which need to be caught. A practical
525        consequence is that for open water, the momentum equation reduce
526        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
527        they happen to be zero, often leading to a non-zero solution over
528        open water.
529    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
530        efficient EVP method.
531      - introduce area-weighted averages for e12 (analogously to
532        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
533        remain, but also changing the order of terms in the previous average
534        changed the results as much) -> update experiment
535      - add SEAICE_DELTA_SMOOTHREG code
536      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
537        TEM-code
538      - adjust loop bounds so that only required fields are computed
539      - add new averaging code for zetaZ/deltaZ (again similar to
540        seaice_calc_viscosities.F), inactive by default for now (will change
541        results again), but will replace old code eventually
542    o eesupp/src:
543      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
544        to always cumulate tile local-sum in the same order
545        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
546        Still uses MPI_Allreduce (like standard code) but on array of tiles
547        and should be faster than GLOBAL_SUM_SEND_RECV code.
548      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
549        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
550      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
551         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
552         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
553         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
554         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
555    
556    checkpoint65n (2015/07/29)
557    o pkg/thsice:
558      - add a warning when used with pkg/aim but without updating SST
559        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
560    o pkg/offline:
561      - change where Offline-Fields are loaded, from load_fields_driver.F to
562        directly within FORWARD_STEP, just after updating iter number and time;
563      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
564        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
565       These changes allow:
566        a) to recover exactly on-line results using deltaToffline=deltaTClock,
567        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
568        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
569        time-step, both with GM & KPP files and with recomputing these fields;
570        b) no needs to switch on staggerTimeStep anymore;
571        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
572      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
573    o pkg/offline:
574      - change (rarely used) offset-iteration parameter to an offset time (in s):
575        can easily recover previous offset-iter effect by setting offset-time
576        (offlineTimeOffset) to offset-iter x deltaToffline;
577      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
578        in KPP as part of surface buoyancy forcing) in offline run.
579      - fix ptracers KPP non-local term in the case where KPP is re-computed.
580    o OpenAD
581      - Adding preliminary ggl90 test to OpenAD verification.
582        Config. with ggl90 currently diverges after 64 time steps
583        so will need more work to become more stable
584      - Adding preliminary kpp test to OpenAD verification.
585        required small tweakes in kpp_routines.F
586      - Merge and update from Krishna Narayanan's contrib area:
587        * Add one variable for preliminary OpenAD DIVA
588        * Add replacement time-stepping for OpenAD DIVA
589        * genmake2 flag -diva (but only for OpenAD; preliminary)
590        * required modifs for OAD_support
591        successful preliminary test for tutorial_global_oce_biogeo/
592    o pkg/seaice:
593      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
594      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
595        delta with a smooth function in s/r seaice_calc_viscosity
596        (no effect on EVP)
597      - rename local suffix "sqr" into "sq" for more consistent variable names
598    o pkg/seaice:
599        add new parameter SEAICE_deltaMin that is used ***only***
600        for regularizing Delta (and nothing else, like the parameter
601        which is also used for all sorts of things SEAICE_EPS).
602        Defaults to SEAICE_EPS for backward compatibility only.
603  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
604    the wrong key by inialising it before use -> fixes a recomputation      the wrong key by inialising it before use -> fixes a recomputation
605    problem but does not fix the gradient      problem but does not fix the gradient
606  o pkg/layers:  o pkg/layers:
607    - move resetting of flux arrays to outside the iLa loop    - move resetting of flux arrays to outside the iLa loop
608      (this caused layers_diapycnal to not work with more than one layer coord.)      (this caused layers_diapycnal to not work with more than one layer coord.)
# Line 18  o pkg/seaice: Line 614  o pkg/seaice:
614    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
615      in lab_sea forward experiment (changes results -> updated)      in lab_sea forward experiment (changes results -> updated)
616    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
617  o pkg/seaice: modify seaice_lsr.F in order to improve the gradient  o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
618    computations; for SEAICE_VECTORIZE_LSR     computations; for SEAICE_VECTORIZE_LSR
619    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
620      sweep to the outside,      sweep to the outside,
621    - remove store directives and add "CADJ loop sequential" directives    - remove store directives and add "CADJ loop sequential" directives
# Line 285  o model/src & mom pkgs: Line 881  o model/src & mom pkgs:
881      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
882  o doc:  o doc:
883    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
884  o pkg/streamice:  o pkg/shelfice:
885    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
886      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
887      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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