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revision 1.229 by jmc, Wed Dec 17 05:39:01 2003 UTC revision 1.378 by jmc, Tue Nov 2 01:20:04 2004 UTC
# Line 3  $Header$ Line 3  $Header$
3      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
4      ==============================      ==============================
5    
6    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
7      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
8    
9    checkpoint55i_post
10    o change arrays for total vertical diffusivity (2.D if explicit,
11      3.D if implicit) ; each ptracer uses its own background value.
12    o added mnc/NetCDF output capability to ocn_compon_interf
13      - added bits to verification/cpl_aim+ocn so that it can run on
14        ITRDA and other clusters without the mpirun "-wd" option
15    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
16      configuration
17    o give MNC the ability to create additional files rather than
18      exceeding a specified file size limit "MNC_MAX_FILESIZE"
19      - the default is just less than 2GB which is a practical limit
20        on many systems
21    o Compute the non-local term using either KPP vertical diffusivity (=default)
22       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
23    
24    checkpoint55h_post
25    o add verification test "vermix"
26    o remove all the *_ioinc flags and replace with the single global
27      outputTypesInclusive flag
28    o allow to set a vertical profile of vertical diffusivity for T & S
29    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
30    o useMNC moved from data.mnc to data.pkg
31    
32    checkpoint55g_post
33    o Renaming carbon AD experiments to comply with testreport conventions
34    o Updating adjoint of Held-Suarez hs94.1x64x5
35    o Fixing directives for non-ECCO forward_step, after ECCO directives
36      have been fixed to avoid recomp. of do_oceanic_phys
37      Works well for global_ocean.90x40x15,
38      but recomp. issue remains for carbon
39    o Updating adjoint output for natl_box_adjoint after
40      pkg/ecco has been modified (see taga c55d_post)
41    
42    checkpoint55f_post
43    o rename to timeave_init_fixed
44    
45    checkpoint55e_post
46    o some delicate re-shuffle of store directives to avoid one
47      extra call of do_oceanic_physics
48      affects ecco_the_main_loop.F, do_oceanic_physics.F
49      checkpoint_lev1_directives.h
50    o NB: this may break global_ocean adjoint temporarily,
51      but it is clear how to fix it. Will do later, need this now.
52    
53    checkpoint55d_post
54    o ECCO specific cost function terms (up-to-date with 1x1 runs)
55    o ecco_cost_weights is modified to 1x1 runs
56    o modifs to allow observations to be read in as
57      single file or yearly files
58    o enable to read exf forcing fields as either
59      single file or yearly files (flag useExfYearlyFields)
60    checkpoint55d_pre
61    
62    o switch between 2-level and 3-level checkpointing
63    o add ability of MNC to write local and "partial" (eg. 2D slices where
64      the full 3D field is never actually stored) arrays to NetCDF files
65      with the correct (that is, the complete multi-dimensional) set of
66      array indicies
67      - used in mom_vecinv() to write the diagFreq output
68      - tested (demonstrated) in verification/aim.5l_cs
69    o further mnc-ification
70      - add verification/lab_sea to the list with mnc setups
71      - fix undefined mnc v-names in cd_code
72      - add kpp to mnc output (both snapshot and timeave)
73    o non-hydrostatic code
74      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
75        in calc_gw.F
76      - defaults to viscAh
77      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
78        friction or Leith) in non-hydrostatic mode, as long as there is
79        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
80    o pkg/cost
81      extend simple cost functions to treat time mean quantities
82      (T,U,V) via cost_accumulate_state from cost_tile
83    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
84        be 2 times larger than the minimum size the advection scheme requires.
85        now get a perfect conservation of salt in advect_cs test-exp (updated)
86    o GGL90 (Gaspar's TKE mixed layer)
87      - add horizontal diffusion of TKE, requires exchanges in
88        do_fields_blocking_exchanges, horizontal diffusivity is zero by
89        default. In OPA there is no horizontal diffusion of TKE but the
90        mixing coefficients are computed from a horizontal average of TKE of
91        6 points or so. I think that diffusion has a little more physical
92        justification.
93      - clean up ggl90_calc in the hope of reducing memory usage (this hope
94        was in vain)
95      - mask tke-variable in ggl90_init
96    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
97    o fix biharmonic diffusion on CS-grid.
98    o more obcs stuff
99      - added obcs_external_fields_load as an alternative to the EXF-pkg option
100        for reading boundary values. This routine is called from
101        obcs_prescribe_read
102      - updated obcs_check
103      - changed sponge layer relaxation parameter units for days to seconds
104      - turned off sponge layer by default
105      - changed argument list of OBCS_CALC to myTime+deltaTclock
106      - fixed about 35 bugs in obcs_external_fields_load
107    
108    checkpoint55c_post
109    o obcs stuff
110      - new runtime flags useOBCSprescribe, useOBCSbalance
111      - re-arranged obcs_calc
112      - moved exf_getobcs to obcs_prescibe_read
113        obcs_prescibe_read is called after ORLANSKI stuff
114        and independent of it (executable can contain all).
115      - updated obcs_check
116      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
117        These may be necessary only if tangential velocities are
118        prescribed at OB, not sure, needs testing.
119    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
120      which simplifies the calls and passes the ifc check-bounds test
121    
122    checkpoint55b_post
123    o add a 2D scalar, Z location, exchange_2 routine.
124    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
125      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
126      affects advect_cs results (for the wrong reason): update output.txt
127    o use a more standard discretization for biharmonic viscosity ;
128     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
129      affects results of dome set-up: update output.txt
130    o fix gad_advection.F (CubedSphere part), back to version 1.23
131    o fix bug in mom_vi_del2uv.F (CubedSphere part).
132    
133    checkpoint55a_post
134    o merged code to
135      * prescribe/read time-dependent open boundaries
136        (works in conjunction with exf, cal)
137      * sponge layer code for open boundaries
138      * each boundary N/S/E/W now has its own CPP option
139        (healthy for the adjoint)
140    
141    checkpoint55
142    o up-to-date adjoint of previous breaks
143      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
144      - global_ocean_ebm: adjoint still needs fix (TLM ok)
145      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
146      - carbon: * remove tr1-related adjoint verification
147                * add ptracer as control variable
148    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
149      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
150    
151    checkpoint54f_post
152    o in verification/carbin/ remove experiment related to
153      ALLOW_PASSIVE_TRACER (array tr1 etc)
154      code_ad/ input_ad/ results_ad
155    
156    o add two new packages
157      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
158        + subject to optimization (memory)
159      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
160        + subject to reordering (many GOTOs in the original code)
161        + so far opps is called for every (i,j) point, and then operates in
162          the vertical; one may want to reorder the scheme in order operate in
163          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
164          fields)
165    o overhaul of IO so that we now have flags for MDSIO and/or MNC
166      - all verification tests compile and run with linux_ia32_g77
167      - defaults are compatible with current input files--nothing
168        should change if you were not previously using MNC
169      - MNC output has been added in numerous places (eg. timeave)
170        but there are still a few writes not yet do-able with MNC
171        (this is in progress)
172      - flags now allow for either/or/both use of MDSIO and MNC and
173        documentation will soon follow
174      - numerous small formatting cleanups for ProTeX
175    o add version info (via BUILD_INFO.h) to MNC and stdout
176    
177    checkpoint54e_post
178    o add two new packages
179      - pp81 (Packanowski and Philander, 1981), Richardson number and
180        stratification dependent mixing
181      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
182      - these scheme operate in a similar manner as KPP (without ghat, of
183        course), however there is only one diffusivity that is used for both
184        temperature and salinity (and passive tracers)ç
185    o add offline package
186    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
187      provided by Stephanie Dutkiewicz
188    o genmake2: add ability to search for C compilers and cleanup test output
189      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
190    
191    checkpoint54d_post
192    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
193    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
194      leading to additional shift by 5 days each year of integration
195       (i.e. leading to considerable offset over the years)
196    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
197    o start with no AB and no initial filtering (staggerTimeStep):
198      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
199    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
200      (external loading & cpl import/export stay in forward_step.F)
201    o update coupling interface to work with new staggerTimeStep
202    o change MDSIO ptracers_pickup.
203    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
204    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
205    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
206    
207    checkpoint54c_post
208    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
209      this affects (truncation error) output.txt of test-exp:
210       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
211    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
212    o change Qnet to always be the net heat flux, (+upward).
213      affects (truncation error) output of natl_box exp.: updated
214    o define the max number of passive tracers in PTRACERS_SIZE.h
215    o start to test mnc routinely in exp0
216    o add sea-ice loading (sIceLoad) as a new forcing field.
217    
218    checkpoint54b_post
219    o add testreport "-j JOBS" option for parallel builds (tested and pretty
220       impressive on Altix and Opteron systems)
221    o diagnostics can now write NetCDF files through the mnc package
222    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
223    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
224    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
225      affects (truncation error) output of lab_sea & natl_box exp.: updated
226    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
227    
228    checkpoint54a_post
229    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
230    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
231    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
232    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
233      + internal_wave (shift in writing cg2d_ini_res)
234    checkpoint54a_pre
235    
236    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
237      - modified verification/lab_sea and natl_box_adjoint accordingly
238    
239    checkpoint54
240    checkpoint53g_post
241    o prepare splitting of thermodynamics: store convect.counter in common block
242    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
243      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
244    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
245    o new parameter "nShapS": allow to treat differently S from T (nShapT)
246    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
247    o restore adjointability
248    
249    checkpoint53f_post
250    o modifications that affect AIM experiment results (update output.txt):
251      - no advection of S at top interface Nr (pkg/generic_advdiff)
252      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
253    o AIM pkg:
254      - include stability function into surf.Flux derivative relative to Tsurf
255      - calculate clear-sky radiation & surface temp. change (for diagnostics)
256    
257    checkpoint53e_post
258    o merged cylindrical coord configuration
259    o added rotating_tank experiment
260    checkpoint53e_pre
261    
262    checkpoint53d_post
263    o faulks upgraded: re-generate output.txt that have changed:
264       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
265    o Added Bryan and Lewis, 1979, vertical diffusivity profile
266    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
267    o added Sadourny discretization of Coriolis
268      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
269      - re-enabled use of omega3 (useAbsVorticity)
270    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
271      vector-invariant equations
272      - note: does *NOT* yet use same variable visc. for no-slip BC's.
273    o recoded the lateral boundary conditions for non-hydrostatic w, this time
274      hopefully without new bugs
275      - still to do: biharmonic friction for non-hydrostatic w
276    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
277    o regenerated output for global_ocean_ebm (using -ieee)
278    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
279      of mom_common/
280      - simple re-arrangement of instructions within computing loop
281    checkpoint53d_pre
282    
283    checkpoint53c_post
284    o new version of coupler for AIM+thSIce and Ocean models
285     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
286     - land: change Evaporation of snow
287     - aim with thSIce: fix bug in snow-precip.
288    o changes to calc_gw.F
289     - bug fix for w^2 term near the bottom boundary
290     - (hopefully) improve the lateral slip boundary condtions for use with
291        partial/looped cells
292      - because the bug fix changes two verification experiments anyway (exp5
293        and plume on slope), change the lateral boundary condition from half slip
294        to the value of no_slip_sides
295    o ebm package wasnt quite up to the parallel task. Fixed that.
296    o Adjoint of EBM package + verification
297      * TLM OK
298      * ADM not sufficient accuracy yet (needs further testing)
299    
300    checkpoint53b_post
301    o Commiting new energy balance model to repository
302      * package is pkg/ebm
303      * verif. is verification/global_ocean_ebm
304      * references are in ebm_driver.F
305    C      * X. Wang, P. Stone and J. Marotzke, 1999:
306    C        Global thermohaline circulation. Part I:
307    C        Sensitivity to atmospheric moisture transport.
308    C        J. Climate 12(1), 71-82
309    C      * X. Wang, P. Stone and J. Marotzke, 1999:
310    C        Global thermohaline circulation. Part II:
311    C        Sensitivity with interactive transport.
312    C        J. Climate 12(1), 83-91
313    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
314    C        Destabilization of the thermohaline circulation
315    C        by atmospheric eddy transports.
316    C        J. Climate 7(12), 1870-1882
317    o Will need long integration testing.
318    checkpoint53b_pre
319    
320    o created pkg/mom_common in preparation for variable viscosity code
321    o renamed and split ini_mnc_io
322    o pkg/land: only liquid water can diffuse or run-off
323    o AIM using land: soil wetness availability account for snow
324    o added printMapIncludesZeros to EEPARMS namelist
325    
326    checkpoint53a_post
327    o restore TAMC compatiility for exf_constants.h
328      (no usage of _d in .h)
329    o Additional storing in KPP in an attempt to fix
330      TAMC problem with adjoint of KPP code.
331      (no success...)
332      Identical code works fine with TAF.
333    o Fixed verification/natl_box_adjoint experiments.
334      Initial conditions for Experiments 4 and 5 are now
335      set to "SEAICE_initialHEFF=0", which is more reasonable,
336      and hence gives results closer to that of Experiment 2.
337      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
338    
339    checkpoint53
340    o stable checkpoint with up to date adjoint
341      TLM tests only run for 1st grdchk at the moment. Its unclear if
342      this is a code problem or a problem with resetting code for g_
343      variables that is being autogenerated wrong.
344      Otherwise:
345       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
346       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
347         are both still in chaos following their security messes.
348    
349    checkpoint52n_post
350    o various build (mostly genmake2) changes including:
351      - ability to build/run more easily within Cygwin and MacOS X
352      - more complicated Makefiles with a stronger dependence on Gnu Make
353    o pkg/seaice modifications
354      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
355        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
356        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
357      - changed proxy for geostrophic velocity and updated
358        verification/lab_sea/results/* accordingly
359      - removed ADI dynamic solver from pkg/seaice
360      - replaced all occurrences of 1/CSTICE or 1/CSUICE
361        they caused a segmentation fault under certain circumstances
362      - removed unused field WATR
363    o bug fix in exf-package:
364      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
365         now reflect that.
366    o small fixes in the cal-package:
367      - set reference date to first of January for the 'model'-calendar
368      - failing of cal_CheckDate in cal_FullDate now actually results in a
369        warning
370    o small modifications in exf-package to increase flexibility:
371      - change climtempfreeze from a constant to a runtime parameter that
372        is specified in data.exf_clim (default = -1.9)
373      - introduce runtime parameter windstressmax (default = 2.0) that is
374        specified in data.exf
375    o fix in pkg/thsice:
376      - update Evap (Tsf changes) to be consistent with Latent heat flux
377      - maintain snow precipitation unchanged (even if Tsf >=0).
378     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
379    
380    checkpoint52m_post
381    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
382      this does not change any of the results, because myIter=0 in swfrac always
383      lead to jwtype=2 (the default anyway), but the call makes little sense
384      as a default
385    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
386    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
387      atmospheric model (AIM) to use it ; add a "slab ocean" component.
388    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
389    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
390    o extending useSingleCpuIO option to work with new exch2 I/O format
391      - old-style, missing-tile I/O is still accessible by defining CPP
392        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
393    o monitor package can write to NetCDF files and/or STDOUT
394    o fix re-definition bug in MNC_GRID_INIT_ALL()
395    o doc/api_reference added
396      - a framework for building an API Reference Manual using all
397        the "protex" comments embedded in the code
398      - see pkg/generic_advdiff, pkg/mnc for examples
399    o MNC:
400      - make myThid the last argument for all subroutines
401      - new default for the grid files: NO halos
402      - add useMNC and other run-time flags
403      - separate per-file-group handling of the unlimited dimension
404      - early initialization of MNC w/ flags read at the eeboot stage
405        and lookup tables set in initialize_fixed
406      - write all MNC output to a freshly-created directory
407    o thermodynamics sea-ice (thsice) is now tested with testreport.
408    o test exp. advect_cs: use the standard cs32 grid ; update output.
409    o Added functionality to grdchk:
410      pick global i,j,k position (or nearest wet) where to perform check.
411    
412    checkpoint52l_post
413    o new land formulation:
414      a) use ground enthalpy as prognostic variable to ensure exact
415         energy conservation.
416      b) account for water temperature and for latent heat of freezing
417         in all processes (rain, run-off, ground storage)
418      c) compute surface and ground temperature implicitly.
419    o aim_v23 modification for new land model:
420      a) Treat separately land / ocean / sea-ice surface fluxes
421         to allow implicit computation of land & sea-ice surface temp.
422      b) add snow precipitation.
423    checkpoint52l_pre
424    
425    o fix problem (when 1 tile is empty) in min/max monitor.
426    o fix bug in timeAve (u,vZetatave in common block)
427    o no restoring terms under ice for pkg/seaice
428    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
429    o bug fix for pkg/seaice pickups
430    o change MNC call locations and add coordinate attributes
431    o mask vorticity at the corner ; affects global_ocean.cs output
432    o fix ini_curvilinear_grid ; test CS experiments with mpi
433    o aim.5l_cs: modify sea-ice fraction input file ; update output
434    o exf: Adding simple range check routine for exf fields after read
435    
436    checkpoint52k_post
437    o removed top-level directory "diags"
438      - we migrated these functions to pkg/timeave a long time ago
439    o fixed bug introduced in pkg/monitor
440    o accuracy ctrlprec = 32 insuffient for gradient checks using
441      averaged fields (I/O via cost_averages)
442      -> use ctrl.h in active_file*.F to control I/O precision.
443    o paramter list of CALL ADTHE_MAIN_LOOP
444    o added initial do_the_model_io to ecco
445    o set all ...Freq to zero after cost_final
446      taveFreq, dumpFreq, pChkptFreq
447    o MAIN and ECCO differentiability restored
448    
449    checkpoint52j_post
450    o fix nchklev in tamc.h for global_ocean...
451    o Bringing flow and store directives up-to-date
452    o Really weird thing!
453      call do_the_model_io from the_main_loop with parameters
454      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
455      TAF places a faulty re-call of initialise_varia
456      after cost_final call which should not be there!
457    checkpoint52j_pre
458    
459    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
460      error messages
461    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
462    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
463      debug output
464    o modfied mdsio_writefield.F to handle non-global files under exch2
465    o update AIM Cubed-Sphere exp (aim.5l_cs):
466      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
467    o update AIM Equatorial Channel exp:
468      use standard aim_v23 pkg and change the SST fields to be more realistic.
469    o globalFile now works with exch2
470    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
471      mon_vort3.F to make exch2 friendly with >1 tile per cube face
472    o limit timeave output for hi-res integrations
473    
474    checkpoint52i_post
475    o removed CPP_EEOPTIONS.h from verification/*/code
476    o updated the tiling for global_ocean_pressure
477    checkpoint52i_pre
478    
479    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
480      the old pkg/aim).
481    
482    checkpoint52h_pre
483    o shortened offending lines in exch2_send_rx?.template
484    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
485    o genmake2: add build & execute test for NetCDF code
486    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
487      old grid files, moved CPP_EEMACROS.h to pkg/exch2
488    o added useSingleCPUIO flag to monitor.F and mon_out.F
489    o added temporary hack for sea-ice dynamics on the cube:
490      metric terms are ignored and it is assumed that
491      there is no sea-ice on cube faces 1, 2, 4, and 5.
492    
493    checkpoint52f_post
494    o added exch2 cube routines to pkg/exch2
495    o modified hs94.cs-32x32x5 to use it
496    o added new grid files to hs94.cs-32x32x5
497    checkpoint52f_pre
498    
499    checkpoint52e_post
500    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
501      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
502    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
503      to work with implicit vertical advection and AB ;
504    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
505    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
506     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
507    checkpoint52e_pre
508    
509    o fix bug in impldiff when Nr=1 or Nr=2.
510    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
511    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
512  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2  o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
513    ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure    ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
514  o added exf_offset_atemp for Celsius to Kelvin conversion of atemp  o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
515    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
516    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
517    
518  checkpoint52d_post  checkpoint52d_post
519    o re-tiled many expts to allow comparison in multi-processor mode
520      - updated output accordingly
521      - changed hs94.128x64x5 to use intial T from file rather than use the
522        random number generator
523  o add infrastructure in model routines for fizhi and gridalt packages  o add infrastructure in model routines for fizhi and gridalt packages
524  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.  o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
525  o changes to permit hi-res, cubed-sphere, configuration  o changes to permit hi-res, cubed-sphere, configuration

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