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revision 1.193 by edhill, Thu Oct 23 04:41:40 2003 UTC revision 1.352 by heimbach, Wed Sep 22 21:31:35 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6  untagged  o obcs stuff
7      - new runtime flags useOBCSprescribe, useOBCSbalance
8      - re-arranged obcs_calc
9      - moved exf_getobcs to obcs_prescibe_read
10        obcs_prescibe_read is called after ORLANSKI stuff
11        and independent of it (executable can contain all).
12      - updated obcs_check
13    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
14      which simplifies the calls and passes the ifc check-bounds test
15    
16    checkpoint55b_post
17    o add a 2D scalar, Z location, exchange_2 routine.
18    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
19      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
20      affects advect_cs results (for the wrong reason): update output.txt
21    o use a more standard discretization for biharmonic viscosity ;
22     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
23      affects results of dome set-up: update output.txt
24    o fix gad_advection.F (CubedSphere part), back to version 1.23
25    o fix bug in mom_vi_del2uv.F (CubedSphere part).
26    
27    checkpoint55a_post
28    o merged code to
29      * prescribe/read time-dependent open boundaries
30        (works in conjunction with exf, cal)
31      * sponge layer code for open boundaries
32      * each boundary N/S/E/W now has its own CPP option
33        (healthy for the adjoint)
34    
35    checkpoint55
36    o up-to-date adjoint of previous breaks
37      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
38      - global_ocean_ebm: adjoint still needs fix (TLM ok)
39      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
40      - carbon: * remove tr1-related adjoint verification
41                * add ptracer as control variable
42    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
43      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
44    
45    checkpoint54f_post
46    o in verification/carbin/ remove experiment related to
47      ALLOW_PASSIVE_TRACER (array tr1 etc)
48      code_ad/ input_ad/ results_ad
49    
50    o add two new packages
51      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
52        + subject to optimization (memory)
53      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
54        + subject to reordering (many GOTOs in the original code)
55        + so far opps is called for every (i,j) point, and then operates in
56          the vertical; one may want to reorder the scheme in order operate in
57          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
58          fields)
59    o overhaul of IO so that we now have flags for MDSIO and/or MNC
60      - all verification tests compile and run with linux_ia32_g77
61      - defaults are compatible with current input files--nothing
62        should change if you were not previously using MNC
63      - MNC output has been added in numerous places (eg. timeave)
64        but there are still a few writes not yet do-able with MNC
65        (this is in progress)
66      - flags now allow for either/or/both use of MDSIO and MNC and
67        documentation will soon follow
68      - numerous small formatting cleanups for ProTeX
69    o add version info (via BUILD_INFO.h) to MNC and stdout
70    
71    checkpoint54e_post
72    o add two new packages
73      - pp81 (Packanowski and Philander, 1981), Richardson number and
74        stratification dependent mixing
75      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
76      - these scheme operate in a similar manner as KPP (without ghat, of
77        course), however there is only one diffusivity that is used for both
78        temperature and salinity (and passive tracers)ç
79    o add offline package
80    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
81      provided by Stephanie Dutkiewicz
82    o genmake2: add ability to search for C compilers and cleanup test output
83      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
84    
85    checkpoint54d_post
86    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
87    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
88      leading to additional shift by 5 days each year of integration
89       (i.e. leading to considerable offset over the years)
90    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
91    o start with no AB and no initial filtering (staggerTimeStep):
92      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
93    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
94      (external loading & cpl import/export stay in forward_step.F)
95    o update coupling interface to work with new staggerTimeStep
96    o change MDSIO ptracers_pickup.
97    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
98    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
99    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
100    
101    checkpoint54c_post
102    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
103      this affects (truncation error) output.txt of test-exp:
104       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
105    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
106    o change Qnet to always be the net heat flux, (+upward).
107      affects (truncation error) output of natl_box exp.: updated
108    o define the max number of passive tracers in PTRACERS_SIZE.h
109    o start to test mnc routinely in exp0
110    o add sea-ice loading (sIceLoad) as a new forcing field.
111    
112    checkpoint54b_post
113    o add testreport "-j JOBS" option for parallel builds (tested and pretty
114       impressive on Altix and Opteron systems)
115    o diagnostics can now write NetCDF files through the mnc package
116    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
117    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
118    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
119      affects (truncation error) output of lab_sea & natl_box exp.: updated
120    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
121    
122    checkpoint54a_post
123    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
124    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
125    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
126    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
127      + internal_wave (shift in writing cg2d_ini_res)
128    checkpoint54a_pre
129    
130    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
131      - modified verification/lab_sea and natl_box_adjoint accordingly
132    
133    checkpoint54
134    checkpoint53g_post
135    o prepare splitting of thermodynamics: store convect.counter in common block
136    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
137      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
138    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
139    o new parameter "nShapS": allow to treat differently S from T (nShapT)
140    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
141    o restore adjointability
142    
143    checkpoint53f_post
144    o modifications that affect AIM experiment results (update output.txt):
145      - no advection of S at top interface Nr (pkg/generic_advdiff)
146      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
147    o AIM pkg:
148      - include stability function into surf.Flux derivative relative to Tsurf
149      - calculate clear-sky radiation & surface temp. change (for diagnostics)
150    
151    checkpoint53e_post
152    o merged cylindrical coord configuration
153    o added rotating_tank experiment
154    checkpoint53e_pre
155    
156    checkpoint53d_post
157    o faulks upgraded: re-generate output.txt that have changed:
158       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
159    o Added Bryan and Lewis, 1979, vertical diffusivity profile
160    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
161    o added Sadourny discretization of Coriolis
162      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
163      - re-enabled use of omega3 (useAbsVorticity)
164    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
165      vector-invariant equations
166      - note: does *NOT* yet use same variable visc. for no-slip BC's.
167    o recoded the lateral boundary conditions for non-hydrostatic w, this time
168      hopefully without new bugs
169      - still to do: biharmonic friction for non-hydrostatic w
170    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
171    o regenerated output for global_ocean_ebm (using -ieee)
172    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
173      of mom_common/
174      - simple re-arrangement of instructions within computing loop
175    checkpoint53d_pre
176    
177    checkpoint53c_post
178    o new version of coupler for AIM+thSIce and Ocean models
179     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
180     - land: change Evaporation of snow
181     - aim with thSIce: fix bug in snow-precip.
182    o changes to calc_gw.F
183     - bug fix for w^2 term near the bottom boundary
184     - (hopefully) improve the lateral slip boundary condtions for use with
185        partial/looped cells
186      - because the bug fix changes two verification experiments anyway (exp5
187        and plume on slope), change the lateral boundary condition from half slip
188        to the value of no_slip_sides
189    o ebm package wasnt quite up to the parallel task. Fixed that.
190    o Adjoint of EBM package + verification
191      * TLM OK
192      * ADM not sufficient accuracy yet (needs further testing)
193    
194    checkpoint53b_post
195    o Commiting new energy balance model to repository
196      * package is pkg/ebm
197      * verif. is verification/global_ocean_ebm
198      * references are in ebm_driver.F
199    C      * X. Wang, P. Stone and J. Marotzke, 1999:
200    C        Global thermohaline circulation. Part I:
201    C        Sensitivity to atmospheric moisture transport.
202    C        J. Climate 12(1), 71-82
203    C      * X. Wang, P. Stone and J. Marotzke, 1999:
204    C        Global thermohaline circulation. Part II:
205    C        Sensitivity with interactive transport.
206    C        J. Climate 12(1), 83-91
207    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
208    C        Destabilization of the thermohaline circulation
209    C        by atmospheric eddy transports.
210    C        J. Climate 7(12), 1870-1882
211    o Will need long integration testing.
212    checkpoint53b_pre
213    
214    o created pkg/mom_common in preparation for variable viscosity code
215    o renamed and split ini_mnc_io
216    o pkg/land: only liquid water can diffuse or run-off
217    o AIM using land: soil wetness availability account for snow
218    o added printMapIncludesZeros to EEPARMS namelist
219    
220    checkpoint53a_post
221    o restore TAMC compatiility for exf_constants.h
222      (no usage of _d in .h)
223    o Additional storing in KPP in an attempt to fix
224      TAMC problem with adjoint of KPP code.
225      (no success...)
226      Identical code works fine with TAF.
227    o Fixed verification/natl_box_adjoint experiments.
228      Initial conditions for Experiments 4 and 5 are now
229      set to "SEAICE_initialHEFF=0", which is more reasonable,
230      and hence gives results closer to that of Experiment 2.
231      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
232    
233    checkpoint53
234    o stable checkpoint with up to date adjoint
235      TLM tests only run for 1st grdchk at the moment. Its unclear if
236      this is a code problem or a problem with resetting code for g_
237      variables that is being autogenerated wrong.
238      Otherwise:
239       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
240       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
241         are both still in chaos following their security messes.
242    
243    checkpoint52n_post
244    o various build (mostly genmake2) changes including:
245      - ability to build/run more easily within Cygwin and MacOS X
246      - more complicated Makefiles with a stronger dependence on Gnu Make
247    o pkg/seaice modifications
248      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
249        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
250        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
251      - changed proxy for geostrophic velocity and updated
252        verification/lab_sea/results/* accordingly
253      - removed ADI dynamic solver from pkg/seaice
254      - replaced all occurrences of 1/CSTICE or 1/CSUICE
255        they caused a segmentation fault under certain circumstances
256      - removed unused field WATR
257    o bug fix in exf-package:
258      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
259         now reflect that.
260    o small fixes in the cal-package:
261      - set reference date to first of January for the 'model'-calendar
262      - failing of cal_CheckDate in cal_FullDate now actually results in a
263        warning
264    o small modifications in exf-package to increase flexibility:
265      - change climtempfreeze from a constant to a runtime parameter that
266        is specified in data.exf_clim (default = -1.9)
267      - introduce runtime parameter windstressmax (default = 2.0) that is
268        specified in data.exf
269    o fix in pkg/thsice:
270      - update Evap (Tsf changes) to be consistent with Latent heat flux
271      - maintain snow precipitation unchanged (even if Tsf >=0).
272     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
273    
274    checkpoint52m_post
275    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
276      this does not change any of the results, because myIter=0 in swfrac always
277      lead to jwtype=2 (the default anyway), but the call makes little sense
278      as a default
279    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
280    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
281      atmospheric model (AIM) to use it ; add a "slab ocean" component.
282    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
283    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
284    o extending useSingleCpuIO option to work with new exch2 I/O format
285      - old-style, missing-tile I/O is still accessible by defining CPP
286        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
287    o monitor package can write to NetCDF files and/or STDOUT
288    o fix re-definition bug in MNC_GRID_INIT_ALL()
289    o doc/api_reference added
290      - a framework for building an API Reference Manual using all
291        the "protex" comments embedded in the code
292      - see pkg/generic_advdiff, pkg/mnc for examples
293    o MNC:
294      - make myThid the last argument for all subroutines
295      - new default for the grid files: NO halos
296      - add useMNC and other run-time flags
297      - separate per-file-group handling of the unlimited dimension
298      - early initialization of MNC w/ flags read at the eeboot stage
299        and lookup tables set in initialize_fixed
300      - write all MNC output to a freshly-created directory
301    o thermodynamics sea-ice (thsice) is now tested with testreport.
302    o test exp. advect_cs: use the standard cs32 grid ; update output.
303    o Added functionality to grdchk:
304      pick global i,j,k position (or nearest wet) where to perform check.
305    
306    checkpoint52l_post
307    o new land formulation:
308      a) use ground enthalpy as prognostic variable to ensure exact
309         energy conservation.
310      b) account for water temperature and for latent heat of freezing
311         in all processes (rain, run-off, ground storage)
312      c) compute surface and ground temperature implicitly.
313    o aim_v23 modification for new land model:
314      a) Treat separately land / ocean / sea-ice surface fluxes
315         to allow implicit computation of land & sea-ice surface temp.
316      b) add snow precipitation.
317    checkpoint52l_pre
318    
319    o fix problem (when 1 tile is empty) in min/max monitor.
320    o fix bug in timeAve (u,vZetatave in common block)
321    o no restoring terms under ice for pkg/seaice
322    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
323    o bug fix for pkg/seaice pickups
324    o change MNC call locations and add coordinate attributes
325    o mask vorticity at the corner ; affects global_ocean.cs output
326    o fix ini_curvilinear_grid ; test CS experiments with mpi
327    o aim.5l_cs: modify sea-ice fraction input file ; update output
328    o exf: Adding simple range check routine for exf fields after read
329    
330    checkpoint52k_post
331    o removed top-level directory "diags"
332      - we migrated these functions to pkg/timeave a long time ago
333    o fixed bug introduced in pkg/monitor
334    o accuracy ctrlprec = 32 insuffient for gradient checks using
335      averaged fields (I/O via cost_averages)
336      -> use ctrl.h in active_file*.F to control I/O precision.
337    o paramter list of CALL ADTHE_MAIN_LOOP
338    o added initial do_the_model_io to ecco
339    o set all ...Freq to zero after cost_final
340      taveFreq, dumpFreq, pChkptFreq
341    o MAIN and ECCO differentiability restored
342    
343    checkpoint52j_post
344    o fix nchklev in tamc.h for global_ocean...
345    o Bringing flow and store directives up-to-date
346    o Really weird thing!
347      call do_the_model_io from the_main_loop with parameters
348      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
349      TAF places a faulty re-call of initialise_varia
350      after cost_final call which should not be there!
351    checkpoint52j_pre
352    
353    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
354      error messages
355    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
356    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
357      debug output
358    o modfied mdsio_writefield.F to handle non-global files under exch2
359    o update AIM Cubed-Sphere exp (aim.5l_cs):
360      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
361    o update AIM Equatorial Channel exp:
362      use standard aim_v23 pkg and change the SST fields to be more realistic.
363    o globalFile now works with exch2
364    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
365      mon_vort3.F to make exch2 friendly with >1 tile per cube face
366    o limit timeave output for hi-res integrations
367    
368    checkpoint52i_post
369    o removed CPP_EEOPTIONS.h from verification/*/code
370    o updated the tiling for global_ocean_pressure
371    checkpoint52i_pre
372    
373    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
374      the old pkg/aim).
375    
376    checkpoint52h_pre
377    o shortened offending lines in exch2_send_rx?.template
378    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
379    o genmake2: add build & execute test for NetCDF code
380    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
381      old grid files, moved CPP_EEMACROS.h to pkg/exch2
382    o added useSingleCPUIO flag to monitor.F and mon_out.F
383    o added temporary hack for sea-ice dynamics on the cube:
384      metric terms are ignored and it is assumed that
385      there is no sea-ice on cube faces 1, 2, 4, and 5.
386    
387    checkpoint52f_post
388    o added exch2 cube routines to pkg/exch2
389    o modified hs94.cs-32x32x5 to use it
390    o added new grid files to hs94.cs-32x32x5
391    checkpoint52f_pre
392    
393    checkpoint52e_post
394    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
395      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
396    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
397      to work with implicit vertical advection and AB ;
398    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
399    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
400     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
401    checkpoint52e_pre
402    
403    o fix bug in impldiff when Nr=1 or Nr=2.
404    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
405    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
406    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
407      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
408    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
409    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
410    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
411    
412    checkpoint52d_post
413    o re-tiled many expts to allow comparison in multi-processor mode
414      - updated output accordingly
415      - changed hs94.128x64x5 to use intial T from file rather than use the
416        random number generator
417    o add infrastructure in model routines for fizhi and gridalt packages
418    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
419    o changes to permit hi-res, cubed-sphere, configuration
420      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
421      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
422      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
423        of surface winds for the cube
424      (A verification experiment, based on global_ocean.cs32x15, but with
425       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
426       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
427       complete with example surface forcing files and matlab scripts to look
428       at the output and compare it with that of global_ocean.cs32x15.)
429    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
430       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
431       to conform to the common rule.
432    o check-in the first version of the coupler + interfaces for multi-components
433       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
434       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
435       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
436       - ocean and atmos. share the same horizontal grid (no interpolation).
437       - exchanges between component and coupler is done in forward_step
438    o new verification experiment, cpl_aim+ocn:
439       coupled ocean - AIM atmosphere on cs32 grid.
440    
441    checkpoint52d_pre
442    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
443    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
444    
445    checkpoint52c_post
446    o Fixing OPTIONS files for use of exf:
447      - ALLOW_ECCO not needed
448      - ECCO_CPPOPTIONS.h should not be included from
449        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
450        as has been the case in the past
451      - All cal/exf related options are currently set in
452        single header file. Should remain so until we
453        agree on a consistent new policy.
454    o Removed all CPP options for cal package.
455      cal has no more CPP options.
456    o modified STOREs in GAD_ADVECTION
457    o corrected key comp. for passkey
458    
459    checkpoint52b_post
460    o new version: "thsice" of thermodynamic sea-ice pkg:
461     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
462     - modify fluxes but do not change theta directly;
463     - light cleaning of bulk_force pkg (still needed with thsice).
464     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
465       + output_thsice.txt to test thsice & bulk_force pkgs.
466    o put back grid & coriolis monitor output.
467    checkpoint52b_pre
468    
469    o call "do_the_model_io" at the beginning (=> dump initial state)
470    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
471    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
472      (need info on NUMBER_OF_PTRACERS)
473    o missing PTRACERS headers in some routines
474    o default tamc.h in pkg/autodiff supposed to crash
475      to ensure proper customization
476    
477    checkpoint52a_post
478    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
479      - moved surfaceTendencyTice from pkg/seaice to main code
480      - subroutine FREEZE_SURFACE now limits only surface temperature
481        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
482        => new output.txt for global_ocean.cs32x15 & global_with_exf
483      - keep the old version of FREEZE for backward compatibility;
484        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
485      - corresponding modifs for TAF directives
486    o added surface flux output variables to TIMEAVE_STATVARS
487    o time-averaged output for pkg/ptracers
488    o fix problem with ECCO-related divided adjoint
489      snapshot file was missing some ad-variables,
490      but no warning issued by TAF
491    
492    checkpoint52a_pre
493    o some bug fixes for #undef REAL4_IS_SLOW
494    
495    checkpoint52 = ecco_c52_e35
496    o after testing adjoints of checkpoint51u_post
497    
498    checkpoint51u_post
499    o this is the post-merge tag of the ecco-branch
500      (needs another clean checkout and re-testing)
501    o various natl_box_adjoint configs and results
502      but no input fields
503    o obcs adjoint not yet merged!
504    o adding ECCO global 1x1 and 2x2 degree configs
505    o updated/extended some store directives for seaice
506    o pkg/ecco now containes ecco-specific part of cost function
507    o top level routines the_main_loop, forward_step
508      supersede those in model/src/
509      previous input data.cost now in data.ecco
510      (new namelist ecco_cost_nml)
511    o in ctrl/ cleaned some cross-dependencies and updated CPP options
512    
513    checkpoint51t_post
514    o this is the pre-merge tag of the ecco-branch
515    
516    checkpoint51s_post
517    o cleanup: removed various obsolete #define-s
518    o pkg/grdchk
519      - renamed 'ph-grd 3' to 'grad-res'
520      - merged from ecco-branch
521        (remaining bug fixes for obcs gradient checks)
522      - additional high-precision output for testreport
523        (grep for 'precision_grdchk_result')
524    
525    checkpoint51r_post
526    o cleaned up or removed CPP_OPTIONS.h files
527    o updated results for some of the tests to reflect the new
528      optfiles (-ieee: -O0 instead of -O3)
529    
530    checkpoint51q_post
531    o cd_code:
532      - moved cd_scheme.F -> cd_code_scheme.F
533      - separate read_checkpoint from cd_code_ini_vars.F
534      - separated cd_code part from write_checkpoint
535      - updated AD_SOURCE, generated .flow
536      - added CD_CODE_VARS.h to the_main_loop
537      - Moving cd_code specific store dir.s to pkg/cd_code
538    o ctrl package totally restructured
539      - pack/unpack now optional and decoupled from
540        xx_/adxx_ I/O
541      - ctrl_pack/unpack cleaned
542        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
543      - confined inclusion of AD_CONFIG.h to where necessary.
544    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
545    
546    checkpoint51p_post
547    o create initial cd_code package
548      - WARNING: the initialization of fields within packages
549        is broken because INI_FIELDS (where READ_CHECKPOINT is
550        called) is called *before* PACKAGES_INIT_VARIABLES.
551        This seems to be backwards since
552        1) its important to initially zero the entire field including
553           the "halo" region
554        2) zeroing needs to be done *before* reading pickup info
555           and the pickup call might or might not happen in any
556           particular run
557      - this needs an overhaul for R2
558    o cleanup verification/*/code/GMREDI_OPTIONS.h
559    o cleanup testreport
560    
561    checkpoint51o_post
562    o bringing AD-related verif's up to date with genmake2
563      - carbon/
564      - global_ocean.90x40x15/
565      - hs.94.1x64x5/
566      - (front_relax/ )
567    o (more) consistent directory structure for AD-related verif.'s
568    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
569    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
570    o bug fix in find_alpha.F for MDJWF:
571      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
572        change rho -> rho-rhoConst
573      - replace call find_rho to find_rhonum
574    o initialisation of rFlx extended to full array (required by TAF)
575      and shifted to thermodynamics
576    o removed PTRACERS.h in ptracers routine
577    o added surfacetendencyPtr to S/R parameter list pracers_forcing
578    o Correcting initialisations for fVerU, fVerV.
579    o helping TAF to recognize dependency on kUp for
580      fVerU, fVerV
581    o Replacing delZ by delR in pkg/ctrl/
582    checkpoint51o_pre
583    
584    o undid all of cp51 pending some cleanups and discussion
585    o added the [#include "AD_CONFIG.h"] statement to all files that need
586       it for adjoint/tl #defines
587     o re-worked the build logic in genmake2 to support AD_CONFIG.h
588     o removed tools/genmake since it no longer works
589    
590    checkpoint51n_post
591    o modifications to make FREEZE flux visible to pkg/kpp
592      - moved surfaceTendencyTice from pkg/seaice to main code
593      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
594      - subroutine FREEZE now limits only surface temperature
595        (this means new output.txt for global_ocean.90x40x15,
596         global_ocean.cs32x15, and global_with_exf)
597    o added surface flux output variables to TIMEAVE_STATVARS
598    
599    checkpoint51n_pre
600  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F  o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
601  o added [#include "AD_CONFIG.h"] to all files that use the following  o added [#include "AD_CONFIG.h"] to all files that use the following
602    defines:    defines:

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