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revision 1.2170 by heimbach, Sun Jul 5 02:06:23 2015 UTC revision 1.2286 by jmc, Sat Dec 31 00:06:36 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 tools/xmakedepend:
8      - In case line editor "ed" is missing, switch to "sed" command to clean-up
9        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
10    o pkg/exf:
11      - change definition of "hflux" input file to always include Short-Wave;
12        this is now consistent with hflux computation (if using bulk-formulae)
13        and hflux diagnostic & documentation (in EXF_FIELDS.h).
14    
15    checkpoint66b (2016/12/01)
16    o model & momentum pkgs:
17      - implement fully implicit bottom friction combined with implicit surf.
18        pressure, for now, only in hydrostic formulation:
19        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
20          and run with selectImplicitDrag=2 ;
21        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
22      - partial implicit time-stepping (bot. friction + vert. visc first, then
23        surf. press) corresponding to selectImplicitDrag=1 should be applicable
24        to NH formulation but not available until we solve for surf. pressure
25        increment (instead of full etaN).
26      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
27        with implicit vertical viscosity.
28    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
29      - this is a first version that includes many regularisations that may
30        not all be necessary, to be sorted out,
31      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
32      - change one verification experiment in seaice_itd to use and test new code
33      - seaice_growth: catch a case where the argument of log can be zero
34        or smaller (important for code stability)
35    o model/src:
36      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
37        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
38        similar A.X'=Y' system (with same matrix A) in subsequent calls;
39        switch based on errCode (In/Out) argument value; in calling routines,
40        initialise errCode before first call.
41    
42    checkpoint66a (2016/10/18)
43    o pkg/bling:
44      - BLING package now loads in atmospheric pCO2 file using exf package routines
45        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
46    o model/src & pkg/ptracers:
47      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
48        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
49        implicitDiffusion (respectively) are used (even without momImplVertAdv
50        or temp,salt,PTRACERS_ImplVertAdv).
51    o model/src & generic_advdiff:
52      - add parenthesis in main diagonal calculation of implicit vertical
53        diffusion matrix (impldiff.F & gad_implicit_r.F).
54        This affects results at machine truncation level; update output of many
55        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
56    o pkg/mom_commom & generic_advdiff:
57      - add deep atmosphere and anelastic scaling factor in implicit vertical
58        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
59    o model/src:
60      - remove few unnecessary temp array copies in solve_tridiagonal.F
61        & solve_pentadiagonal.F
62    
63    checkpoint65z (2016/09/28)
64    o pkg/seaice: fix multithreading for seaice_fgmres.F
65      - remove unecessary variables from common blocks
66      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
67        basis, that are stored in commom blocks (including integer variable i1)
68      - clean up code a little by removing commented lines that refer to
69        original code
70      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
71    o MITgcm manual:
72      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
73        preliminary documentation for generic controls (8.3; ctrl.tex),
74        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
75        ecco_costfunction.tex
76    o pkg/ecco:
77      - update and cleanup list of CCP options
78      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
79        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
80      - add checks that retired run-time options are not used, and in relation
81        to gencost_mask and gencost_errfile
82      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
83        gencost_nrecperiod
84      - fix m_eta computation for virtual salt flux case
85      - add m_horflux_vol case (selected via gencost_barfile) that computes
86        transports via cost_gencost_boxmean (gencost_flag=-3)
87      - use gencost_flag more systematically (i.e., avoid using gencost_name)
88        for code switches (aside from physical variable selection)
89    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
90      attempt appears to be a bit of a hack and my need some repair down the road
91    o pkg/exf:
92      - interpolation near South Pole: fix criteria on input field latitude.
93    o pkg/icefront & pkg/exf:
94      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
95        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
96    o pkg/exf:
97      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
98        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
99        (add suffix "_out" instead of a prefix); keep same record number as in
100        input file but always write record 1 first (to avoid a STOP in I/O S/R).
101        Change output file content by writing interpolated field before applying
102        land-sea mask (helpful for debug).
103      - 2 compon. vector interpolation with rotation: apply scaling factor on
104        each compon. (Eastward and Northward) just before rotation.
105    o pkg/bling:
106      - Cleaned package. Removed not needed code and comments.
107      - adjoint example now works
108        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
109    o pkg/ptracers:
110      - add Bruno Deremble's code to complete the linear surface correction
111        for tracer conservation;
112      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
113    
114    checkpoint65y (2016/07/29)
115    o pkg/debug (stats):
116      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
117        proc/thread mapping);
118      - fix Min & Max for case where 1 thread has only empty tiles;
119      - use RL variable to count number of wet grid points (with big domain,
120        can be too large to fit into integer*4).
121    o pkg/monitor:
122      - use RL variable to count number of wet grid points (but used only for del2)
123      - add new routine to compute Advective CFL within tracer time-stepping with
124        writing delayed until next monitor output.
125    o pkg/obcs:
126      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
127    o pkg/cal:
128      - calandar-dump: treat case myTime < timePhase in the same way as in
129        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
130    o pkg/dic & seaice:
131      - fix compilation of ocean component for coupled atm+ocn model with
132        seaice dynamics & dic.
133    
134    checkpoint65x (2016/06/11)
135    o add a license text file in main MITgcm tree.
136    o added pkg/bling:
137      - intermediate complexity biogeochemical model
138      - see bling_description.txt for details
139      - verification experiment is global_oce_biogeo_bling (for now, in
140        Contrib/verification_other/); tested daily on baudelaire with gfortran.
141      - add entry point in pkg/gchem for new pkg "bling".
142    o pkg/seaice: fix tensile stength computation
143      - replace global field tensileStrength by tensileStrFac
144      - tensileStrFac can be computed once in S/R seaice_init_varia
145      - fortunately that does not affect any verification results
146    
147    checkpoint65w (2016/05/12)
148    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
149         with ECCO_CTRL_DEPRECATED defined
150    o verification/global_ocean.cs32x15:
151      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
152        with "selectNHfreeSurf=1".
153    o model/src (non-hydrostatic free-surface):
154      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
155        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
156      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
157        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
158        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
159        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
160      - Update output (changes at machine truncation level) of verification exp:
161        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
162        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
163    o pkg/seaice: ITD code
164      - fix picking up from a single category model by initialising
165        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
166      - split a long warning message in seaice_check_pickup.F into two lines,
167        because NEC SX-ACE cannot deal with the long line.
168    o model/src:
169      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
170    o pkg/seaice:
171      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
172    o pkg/seaice:
173      - add basal stress as parameterisation for grounding ice
174        following Lemieux et al. (2015)
175      - turn on by setting new parameter SEAICEbasalDragK2 to a value
176        larger than 0. Lemieux et al. (2015) recommend 15.
177      - The adjoint complains with extra recomputations so there is also a
178        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
179        order to postpone the problem
180      - compile the new code in lab_sea
181    o verification/halfpipe_streamice:
182      - update both TAF and OpenAD adm output (machine truncation differences)
183    
184    checkpoint65v (2016/04/08)
185    o verification/advect_xz:
186      - increase overlap size from 3 to 4 and add new secondary test for PQM
187        advection scheme (with mono & wino limiter).
188      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
189    o model/src:
190      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
191        added phi0Ref) to set vertical axis origin and phiRef origin;
192        keep Ro_SeaLevel for backward compatibility (with a warning).
193       According to coordinate and fluid type:
194        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
195        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
196        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
197        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
198      - remove Ro_SeaLevel from ATM experiment parameter files;
199      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
200        complement; update output.txt (changes at machine truncation level).
201    o pkg/seaice/seaice_evp.F
202      - simplify computation of deltaZ and zetaZ to simple averaging following
203        Bouillon et al. (2013). This removes a lot of code, but also changes
204        verification experiment lab_sea.hb87 -> updated
205    
206    checkpoint65u (2016/03/14)
207    o pkg/generic_advdiff:
208      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
209        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
210        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
211        testing and not for actual use.
212    o model/src:
213      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
214        origin r = rF(1);
215      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
216        in EOS for height coordinate: enable to include NH Pressure or to use
217        more accurate pressure vertical profile; options not linked to EOS type
218        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
219      - start to implement variable gravity (along vertical): for now, only with
220        z-coords (not even z*).
221      - add Ideal Gas equation of state for height coordinate.
222      - update OpenAD output (affected at machine truncation level) of exp:
223        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
224    o pkg/exf:
225      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
226        of exf interpolation (before any rescaling, rotation or interpolation
227        to velocity point) for each field that gets loaded from file. This option
228        identically mimics the input file organization (e.g. record numbers in year
229        by year input files) besides the change in horizontal grid.
230      - add rotateStressOnAgrid run-time switch so that wind stress fields
231        can be provided on the A-grid in zonal/meridional direction and
232        rotated on the fly. This only applies to the case when the exf
233        interpolation is off and rotateStressOnAgrid is false by default.
234    o model/src:
235      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
236        it's also used with pkg/atm_phys) and add few more parameters (but still
237        inactive, src code yet to come)
238    
239    checkpoint65t (2016/02/10)
240    o pkg/atm_phys:
241      - from Ruth Geen: add optical depth dependence on CO2 concentration.
242    o model/src:
243      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
244        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
245        Update output of exp. deep_anelastic (changes at truncation level).
246    o tools:
247      - add a hack in "remove_comments_sed" (used only with TAF) for recent
248        version of OpenMPI (shipped with FC.23): comment out the new header
249        file "mpif-sizeof.h" which causes problems to TAF.
250    o pkg/seaice:
251      - change the termination criterion so that maxits (SEAICElinearIterMax)
252        has an effect
253      - unify iteration parameters for implicit solvers (JFNK and Picard)
254        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
255        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
256        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
257        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
258        SEAICEnonLinTol     replaces JFNKgamma_nonlin
259      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
260      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
261        use with SEAICEuseKrylov
262    o pkg/seaice/seaice_lsr.F
263        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
264        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
265        an effect.
266    o pkg/seaice: add two new parameters
267      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
268        parameter is not in any namelist)
269      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
270        a preconditioner for the non-linear Newton iteration of the JFNK
271        solver
272    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
273      affects some experiments at truncation level:
274      - global_ocean.cs32x15.icedyn (11 digits),
275      - global_ocean.cs32x15.seaice (11 digits),
276      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
277      - also update global_ocean.cs32x15 adjoint and tangent-linear results
278    o pkg/salt_plume & pkg/thsice:
279      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
280        connect salt_plume flux to ATM-OCN coupling pkgs interface:
281       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
282         export to coupler interface) even without compiling pkg/salt_plume ;
283       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
284         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
285    o pkg/dic:
286      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
287        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
288        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
289      - move also update with values from ATM-OCN Coupler in the same new S/R
290        (previously done in ocn_apply_import.F).
291    o tools/adjoint_options:
292      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
293        has been changed on Jan 14, 2016.
294    o pkg/ggl90:
295      - add alternative discretisation of vertical shear (off by default), to
296        compute the mean (@ grid-cell center) of vertical shear compon instead of
297        vertical shear of mean flow (@ grid-cell center).
298      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
299        results on adjacent faces of cubed-sphere grids; this fix the restart.
300    o pkg/atm_compon_interf:
301      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
302        pass last value, stored directly before export to CPL ;
303        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
304      - remove atmSLPr from pickup files (no longer needed for restart)
305    
306    checkpoint65s (2016/01/13)
307    o eesupp & genmake2:
308       - first check for Function ETIME and, if it fails, then check for subroutine
309         ETIME and consistent output; use the appropriate version in timers.F
310    o model/src:
311      - to check restart test, add option to apply EXCH to U,V earlier, just before
312        integr_continuity; turned off by default.
313    o pkg/dic:
314      - remove CPP option USE_ATMOSCO2 (not needed)
315    o tools/tst_2+2:
316      - try to ignore difference between +0 and -0 in binary file, causing test
317        to fail for no good reason.
318    o eesupp & genmake2:
319      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
320        but also check (in genmake2) that test runs and returns meaningful results.
321    o coupler pkgs:
322      Finish implementation of optionally-exchanged variable switches (started on
323       Nov 12) with addition of few more exchanged fields, including 2-way exchange
324       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
325       advection in OCN component; this requires sequential coupling.
326      coupler (pkg/atm_ocn_coupler):
327      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
328        routines (useful for debug).
329      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
330         flux, DIC fields) if corresponding switch is ON.
331      - add option to export RunOff to OCN (to use for DIC river input)
332      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
333      components (pkg/atm_ & ocn_compon_interf):
334      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
335        optionally exchanged fields; add a check & stop in cpl_readparms.F.
336        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
337        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
338      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
339        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
340      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
341      - hold in common block coupler optionally-exchanged variable switch
342        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
343      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
344        this is intended to replace the OCN cplFldtave.* output files (not updated
345        to contain new additional exchanged fields).
346    o pkg/dic:
347      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
348    o pkg/thsice:
349      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
350        and writing of thsice pickup files.
351    o pkg/atm_compon_interf:
352      - move all field individual export-call out of cpl_export_import_data.F
353        into new S/R ATM_EXPORT_FIELDS
354    o pkg/atm_compon_interf:
355      - store state variables (for now, only thSIce fields) just before beeing
356        exported (in cpl_export_import_data.F, like on ocean side) instead of from
357        atm_store_my_data.F like all exported fluxes.
358      - new version of pickup_cpl: write field names into meta file and read meta
359        file to find field postion in pickup. Also only write/read fields meeded for
360        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
361    o pkg/dic:
362      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
363    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
364        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
365        value can be from domain [0,1] to average between the two methods
366    o pkg/atm_phys:
367      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
368        hold fixed in time).
369    
370    checkpoint65r (2015/12/21)
371    o pkg/seaice:
372        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
373        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
374    o pkg/seaice:
375      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
376        when SEAICEscaleSurfStress=.TRUE.,
377      - apply areaW and areaS in S/R seaice_calc_lhs
378    o pkg/atm_phys:
379      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
380        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
381        for individual contribution (convection, LSC cond, radiation)
382      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
383        information); activated with: solar_exponent=0. and wv_exponent=-1.
384    o pkg/ggl90:
385      - within IDEMIX add upper limit for horizontal group velocity to
386        avoid instability problems in the explicit horizontal diffusion term for
387        long time steps or high resolution
388    o pkg/diagnostics:
389      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
390        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
391    o testreport:
392      - remove "-v" (verbose option) in default mpirun command.
393    o pkg/seaice/seaice_growth:
394      - catch potential division by zero in ITD code, does not change
395        verification results
396    o pkg/ecco:
397      - retire old codes to the Attic. The calls to retired functions are
398        left in a commented form in case they ever need to be re-activated.
399      - ecco_check.F: issue warning if any old CPP option is
400        defined that corresponds to retired codes -- then stop.
401    o pkg/atm_compon_interf:
402      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
403        coupler: use last time-step value instead of average over cplSendFrq_iter
404        time-step, similar to what is done for seaIceMass.
405        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
406    o eesupp & genmake2:
407      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
408        <= remove until a fix is found for some ifort version on ia32 machine.
409    o pkg/seaice/seaice_evp:
410      - refine residual computation
411    
412    checkpoint65q (2015/11/18)
413    o pkg/seaice/seaice_evp:
414      - fix residual computations so that they no longer affect the actual
415        simulation code
416      - fix seaice_readparams to be able to actually set new parameters
417        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
418    o model/src:
419      - fix wrong truncation (single prec) from "FLOAT" function in expressions
420        like: deltaT*FLOAT(myIter) when myIter is large:
421         a) replaced by DFLOAT (if not seen by TAF);
422         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
423    o pkg/aim_v23:
424      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
425        when pickupSuff is set ; do write rolling pickups + at the end of the run.
426    o pkg/atm_ocn_coupler + ocn_compon_interf:
427      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
428        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
429        add corresponding call in DO_OCEANIC_PHYS.
430    o coupler pkgs:
431      Start a new way to set-up optionally-exchanged variables (previously, only
432       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
433       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
434       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
435       compononent param default can be set accordingly).
436      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
437       but rather applies to a group a fields (going both ways like for DIC)
438       and corresponds to an option of coupling config.
439      coupler (pkg/atm_ocn_coupler):
440      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
441        and read namelist directly (without eessup S/R calls) instead of
442        in the very un-flexible old way, 1 param per line, in fixed order;
443      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
444        cleanly in CPL_CHECK_CPLCONFIG
445      - add new coupling-exchange selectors (some not yet active) including
446        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
447                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
448      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
449        component ; called directly from coupler.F, after comp. registrations;
450      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
451         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
452          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
453      components (pkg/atm_ & ocn_compon_interf):
454      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
455        CPP header file in all pkg source files.
456      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
457        ATM/OCN_CHECK_CPLCONFIG;
458      - add error-counter to track errors (e.g., in "data.cpl") and to stop
459        cleanly in ATM/OCN_CHECK_CPLCONFIG;
460      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
461        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
462        before PACKAGES_READPARMS;
463      verification/cpl_aim+ocn/:
464      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
465        "data.cpl" for coupler (in input_cpl).
466    o eesupp/inc:
467      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
468        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
469        to always cumulate tile local-sum in the same order (still uses
470        MPI_Allreduce like standard code).
471      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
472        that are now identical to standard version (in eesupp/inc).
473    o pkg/shelfice:
474      - add SHELFICETransCoeffTFile for initializing spatially varying
475        heat and salt transfer coefficients
476    o pkg/atm_compon_interf & ocn_compon_interf:
477      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
478        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
479      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
480    o pkg/atm_ocn_coupler:
481      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
482    o pkg/rbcs:
483      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
484        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
485      - add a short report (to STDOUT) about RBCS-mask settings.
486    
487    checkpoint65p (2015/10/23)
488    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
489        there is no adjoint test for EVP, we don't know what it does to the adjoint
490        solution, but at least there are no more recomputation warnings left
491    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
492        a chance of giving the same results as a fully converged VP (JFNK) solver
493    o tools/adjoint_options/adjoint_diva:
494      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
495    o pkg/streamice:
496      - spotted bug in streamice_driving_stress using dyG where should have been dxG
497    o pkg/exf:
498      - remove STOP statement that prevented to use wind or (wind-)stress
499        interpolation for constant-in-time forcing fields (wind/stress period = 0).
500    o pkg/seaice:
501      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
502        5 additionals 2D fields and 6 new store directives
503      - change logic in seaice_readparms.F: EVP code can now be turned on in
504        various ways, setting SEAICE_deltaTev is no longer required,
505        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
506        or SEAICEaEVPcoeff
507    o pkg/shelfice/shelfice_thermodynamics.F
508      - redefining uLoc/vLoc to u/v, instead of 2u/v
509    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
510      - this is an intermediate state of a truely converging EVP that has
511        the potential of outperforming implicit VP methods, I do not recommend
512        using it yet.
513      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
514        and all parameters are hardwired
515      - for convergence it still requires very smooth regularisations, that means,
516        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
517        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
518        specific averaging appears to be required, still subject to tuning
519      - still needs cleaning and I need to turn parameter into runtime parameters
520      - add code to compute and print residuals of iteration, compile with
521        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
522    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
523      that entered with r1.54 on Sep04, 2015, -> update results
524    
525    checkpoint65o (2015/09/14)
526    o pkg/mom_vecinv & mom_common:
527      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
528        called from there.
529      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
530        allows to use Vector-Invariant form in deep atmos and anelastic formulation
531    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
532      and Koenig-Beatty+Holland (2012)
533      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
534      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
535      - requires an extra input argument for S/R seaice_calc_viscosities
536      - tensileStrength's depth dependence is different from Itkin et al. (2015)
537        (to be changed and played with, for now exponential)
538    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
539      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
540        by AREA according to Connelly et al. (2004), JPO.
541      - For EVP and the LSR solver, the implicit part of the drag term is
542        the only non-zero term in the denominator when there is no ice (which
543        prevented running the model with zero ice-ocean drag). If
544        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
545        (or zero main diagonals BU/BV) which need to be caught. A practical
546        consequence is that for open water, the momentum equation reduce
547        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
548        they happen to be zero, often leading to a non-zero solution over
549        open water.
550    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
551        efficient EVP method.
552      - introduce area-weighted averages for e12 (analogously to
553        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
554        remain, but also changing the order of terms in the previous average
555        changed the results as much) -> update experiment
556      - add SEAICE_DELTA_SMOOTHREG code
557      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
558        TEM-code
559      - adjust loop bounds so that only required fields are computed
560      - add new averaging code for zetaZ/deltaZ (again similar to
561        seaice_calc_viscosities.F), inactive by default for now (will change
562        results again), but will replace old code eventually
563    o eesupp/src:
564      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
565        to always cumulate tile local-sum in the same order
566        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
567        Still uses MPI_Allreduce (like standard code) but on array of tiles
568        and should be faster than GLOBAL_SUM_SEND_RECV code.
569      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
570        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
571      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
572         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
573         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
574         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
575         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
576    
577    checkpoint65n (2015/07/29)
578    o pkg/thsice:
579      - add a warning when used with pkg/aim but without updating SST
580        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
581    o pkg/offline:
582      - change where Offline-Fields are loaded, from load_fields_driver.F to
583        directly within FORWARD_STEP, just after updating iter number and time;
584      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
585        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
586       These changes allow:
587        a) to recover exactly on-line results using deltaToffline=deltaTClock,
588        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
589        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
590        time-step, both with GM & KPP files and with recomputing these fields;
591        b) no needs to switch on staggerTimeStep anymore;
592        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
593      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
594    o pkg/offline:
595      - change (rarely used) offset-iteration parameter to an offset time (in s):
596        can easily recover previous offset-iter effect by setting offset-time
597        (offlineTimeOffset) to offset-iter x deltaToffline;
598      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
599        in KPP as part of surface buoyancy forcing) in offline run.
600      - fix ptracers KPP non-local term in the case where KPP is re-computed.
601  o OpenAD  o OpenAD
602   - Adding preliminary ggl90 test to OpenAD verification.    - Adding preliminary ggl90 test to OpenAD verification.
603     Config. with ggl90 currently diverges after 64 time steps      Config. with ggl90 currently diverges after 64 time steps
604     so will need more work to become more stable      so will need more work to become more stable
605   - Adding preliminary kpp test to OpenAD verification.    - Adding preliminary kpp test to OpenAD verification.
606     required small tweakes in kpp_routines.F      required small tweakes in kpp_routines.F
607   - Merge and update from Krishna Narayanan's contrib area:    - Merge and update from Krishna Narayanan's contrib area:
608     * Add one variable for preliminary OpenAD DIVA      * Add one variable for preliminary OpenAD DIVA
609     * Add replacement time-stepping for OpenAD DIVA      * Add replacement time-stepping for OpenAD DIVA
610     * genmake2 flag -diva (but only for OpenAD; preliminary)      * genmake2 flag -diva (but only for OpenAD; preliminary)
611     * required modifs for OAD_support      * required modifs for OAD_support
612     successful preliminary test for tutorial_global_oce_biogeo/      successful preliminary test for tutorial_global_oce_biogeo/
613    o pkg/seaice:
614      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
615      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
616        delta with a smooth function in s/r seaice_calc_viscosity
617        (no effect on EVP)
618      - rename local suffix "sqr" into "sq" for more consistent variable names
619  o pkg/seaice:  o pkg/seaice:
620   - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr      add new parameter SEAICE_deltaMin that is used ***only***
621   - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising      for regularizing Delta (and nothing else, like the parameter
622     delta with a smooth function in s/r seaice_calc_viscosity      which is also used for all sorts of things SEAICE_EPS).
623     (no effect on EVP)      Defaults to SEAICE_EPS for backward compatibility only.
  - rename local suffix "sqr" into "sq" for more consistent variable names  
 o pkg/seaice: add new parameter SEAICE_deltaMin that is used ***only***  
   for regularizing Delta (and nothing else, like the parameter  
   which is also used for all sorts of things SEAICE_EPS). Defaults to  
   SEAICE_EPS for backward compatibility only.  
624  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with  o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
625    the wrong key by inialising it before use -> fixes a recomputation      the wrong key by inialising it before use -> fixes a recomputation
626    problem but does not fix the gradient      problem but does not fix the gradient
627  o pkg/layers:  o pkg/layers:
628    - move resetting of flux arrays to outside the iLa loop    - move resetting of flux arrays to outside the iLa loop
629      (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 40  o pkg/seaice: Line 635  o pkg/seaice:
635    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it    - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
636      in lab_sea forward experiment (changes results -> updated)      in lab_sea forward experiment (changes results -> updated)
637    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v    - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
638  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
639    computations; for SEAICE_VECTORIZE_LSR     computations; for SEAICE_VECTORIZE_LSR
640    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)    - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
641      sweep to the outside,      sweep to the outside,
642    - remove store directives and add "CADJ loop sequential" directives    - remove store directives and add "CADJ loop sequential" directives
# Line 307  o model/src & mom pkgs: Line 902  o model/src & mom pkgs:
902      just copy level Nr value to level Nr+1.      just copy level Nr value to level Nr+1.
903  o doc:  o doc:
904    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.    - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
905  o pkg/streamice:  o pkg/shelfice:
906    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,    - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
907      SHELFICE.h: move array shelficemass to init_varia, initialise      SHELFICE.h: move array shelficemass to init_varia, initialise
908      from array shelficemassinit, which is set in init_fixed and      from array shelficemassinit, which is set in init_fixed and

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