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revision 1.98 by adcroft, Tue Nov 5 19:20:40 2002 UTC revision 1.533 by jmc, Tue Aug 16 22:50:56 2005 UTC
# Line 1  Line 1 
1  $Header$  $Header$
2    $Name$
3    
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o fix initialisation Pb in calc_gw (get NANs in exp5 with g77)
8    o fix annoying months-old bug in mnc/mdsio output for seaice pkg
9      - bug was reported by Jean-Michel and Ian Fenty
10    o fix initialization Pb in AIM-Ocean coupled model (aim_sice2aim.F)
11      update exp. cpl_aim+ocn output.
12    o Implement 4-level checkpointing: AUTODIFF_4_LEVEL_CHECKPOINT
13      Needed for high-res. runs with large global files
14      to be able to limit tapelev size
15    o Changed some tests for adjoint:
16      * carbon/ now tests AUTODIFF_2_LEVEL_CHECKPOINT
17      * natl_box_adjoint/code_bulk/ tests AUTODIFF_4_LEVEL_CHECKPOINT
18      * global_ocean.90x40x15/ back to default 3-level checkpointing
19    
20    checkpoint57p_post
21    o reading of delXfile & delYfile moved from ini_parms.F to ini_grid.F
22    o move ${PKG}_MNC_INIT from ${PKG}_READ_PARAMS to ${PKG}_INIT_FIXED
23      (already the case for some pkgs, including recent MNC_init, e.g. thsice)
24    o call CALC_GW from DYNAMICS (instead of from FORWARD_STEP)
25    o Dissipation & phiHyd gradient are always added to gU,gV in timestep.F
26      (was already the case for dissipation with mom_vecinv,
27       and also the case for grad.PhiHyd when staggered-timeStep)
28      This will allow to put dissipation out-off the AB time-stepping.
29     Unfortunately, affects truncation error. Update output of exp. that "fails"
30      (cg2d matching number) and leave the others for later: front_relax(10),
31      global_ocean_pressure(10),ideal_2D_oce(10),internal_wave(9),lab_sea(12),
32      matrix_example(7!),natl_box(12),plume_on_slope(11),vermix(12x3,11x2).
33    
34    checkpoint57o_post
35    o fix MNC/MDSIO flags in PTRACERS so that (1) it works, and
36      (2) its ready to be documented during the 20050801 DocFest
37    o MNC-ify the gmredi package -- tested and works w/ and w/o mnc
38      for ideal_2D_oce and lab_sea on linux_ia32_g77
39    o set to #undef CTRL_SET_OLD_MAXCVARS_30
40      in global1x1_tot/code_seaice_adj to access indices 32, 33
41      (worth another tag)
42    
43    checkpoint57n_post
44    o adding precip control xx_precip 32
45    o adding swflux control xx_swflux 33
46    o Replacing 10 forcing penalty cost routines by 1 generic.
47    o Implementing partitioning in time-mean and variable adjustment
48      for atmos. state.
49    o Time-mean constant error is now read in data.ecco (instead of hard-coded)
50    o in natl_box_adjoint:
51      * updated exp 1 to 10
52        (but does not have time-mean vs. variable split results yet)
53    o updated global1x1/*_seaice_adj/
54      to incorporate latest changes
55    o enable useSingleCpuIO for mdsio vector routines
56      (applies in particular to tapelev I/O)
57    o removed inefficient K-loop in all active_file*control*.F
58    
59    checkpoint57m_post
60    o re-arrange exp. adjustment.cs-32x32x1 (adjust_nlfs.cs-32x32x1 merge into)
61      and advect_cs (use EXCH-2 and standard cs-32 grid files).
62    o pkg/exch2: filling of face-corner halo regions is optional
63      (ifdef W2_FILL_NULL_REGIONS) and is turned off by default.
64    
65    checkpoint57l_post
66     tag before updating tutorials (pre-release-2)
67    o add cos & sin of grid-direction orientation angle (curvilinear grid only,
68       for output and interpolation of input fields onto model grid)
69    o fix radius in mom_v_metric_cylinder.F (wrong by dy/2).
70       Affects results of exp. rotating_tank ; update output.txt.
71    o pkg/diagnostics: 2 new S/R to fill a diagnostics using a scaling factor
72          and taking the square quantity and/or using a fraction-weight field.
73    o fix aim_diagnostics_init.F mate numbers.
74    o add mnc output capability to diagnostics/diagstat and update
75      our cvsignore files for the ACSII output generated
76    
77    checkpoint57k_post
78    o lab_sea now uses diagnostics package and provides a suite of
79      new EXF diagnostics output.
80    
81    checkpoint57j_post
82    o exf
83      * bug fix in exf_bulkformulae for psimh (spotted by Eliyahu Biton):
84        Bracket missing in eqn. for psimh (eqn. 7 of Large & Pond, 1982);
85        terms -2*ATAN(x) + pi/2 were added to both stable and unstable case.
86      * extended diagnostics output
87        - now includes all EXF variables
88        - hs, hl moved to common block
89        - separate S/R for diagnostics, called after ctrl vector is added
90        - name changed for EXFsw -> EXFswnet, EXFlw -> EXFlwnet
91        - EXFqnet contains true Qnet (i.e. includes qsw)
92      * updated verif. lab_sea, global_with_exf
93      * Rearranging hflux (exf_mapfields -> exf_getforcing)
94        to ensure that diagnostics sees a true EXFqnet
95    o add matlab scripts for CS-grid vectors (in utils/cs_grid)
96    o diagnostics pkg: change pointers so that 1 diagnostic can be used
97      several times with different frequencies.
98    o mnc-ify the thsice package as requested by Daniel Enderton
99      - the monitor--MNC output needs work
100      - many attributes need to be added (most are currently blank)
101    o mnc-ify theaim_v23 package as requested by Daniel Enderton
102      - many attributes need to be added (most are currently blank)
103    o remove "groundAtK1" & "rkFac" (replaced by usingPCoords & -rkSign)
104    o add Sadourny like discretization to the 4th.O vorticity advection scheme
105    o fix bug in rStar code (calc_r_star.F) when used with topo/bathy.
106      update output.txt from: aim.5l_cs (& .thSI), cpl_aim+ocn,
107         fizhi-gridalt-hs and global_ocean.cs32x15 (& .thsice).
108    o fix few little things to avoid floating error with -ftrapuv (ifort v9)
109     (ini_spherical_polar_grid.F, calc_r_star.F, monitor/mon_surfcor.F)
110    
111    checkpoint57i_post
112    o Diagnostics package was changed: diagnostic allocation is now deactivated
113      by setting an empty file name in the namelist (used to be by setting 0 frequency)
114    o momentum advection (VI form) options: activate 4th.O vorticity Coriolis ;
115      add 1rst Order upwind vertical Shear.
116    o add a quick fix for A/B checkpointing in OFFLINE mode
117    o add IGNORE_TIME define and -ignore_time option to genmake2 as an
118      end-run around the C/Fortran linking horror in eesup/src/timers.F
119    o added pkg/runclock: allows user to terminate run based on wall clock
120    o added non-hydrostatic scaling parameter: nh_am2
121    o pkg/my82: futile attempt to make results compiler-independent by adding
122      some "_d 0", etc. no effect.
123    o for mnc output, fill the 'T' coordinate var with myTime and create a
124      separate 'iter' variable for iteration count
125    o pkg/diagnostics:
126      add new capability: output of Global/Regional & per-level statistics ;
127      tested against monitor output (including land & thSIce) on various exp.
128    o make seaice-pkg I/O type flags (MNC/MDS) more standard.
129    
130    checkpoint57h_done
131      tag after changing user customized files (DIAGNOSTICS_SIZE.h,
132      data.diagnostics, data.gchem, data.ptracers) is done.
133    
134    o pkg/diagnostics: prepare for Global/Regional statistics.
135      add 2nd namelist in data.diagnostics and update DIAGNOSTICS_SIZE.h
136    o remove "baseTime" (no used) from arg. list of DIFF_BASE_MULTIPLE
137      and rename it: DIFFERENT_MULTIPLE
138    
139    checkpoint57h_post
140    o move tIter0 from data.gchem to PTRACERS_Iter0 in data.ptracers
141    o pkg/diagnostics: change output frequency, now in seconds (instead
142      of Nb of iterations). This requires to change data.diagnostics.
143    checkpoint57h_pre
144    
145    o in mnc, let the user create the output dir if both mnc_outdir_date
146      and mnc_outdir_num are false
147    o add fflags() to pkg/diagnostics which allows one to specify, on a
148      per-file basis, the file precision [default behavior is unchanged]
149    o added diagnostics to pkg/kpp, including computation of mixed layer
150      depth based on a temperature/density criterion
151    o updated verification/natl_box to test the new pkg/kpp diagnostics
152    o bugs fixed (with useAbsVorticity=T & with useJamartMomAdv=T)
153    o test AB-3 code with 4th.Order advection scheme (advect_xy/input.ab3_c4)
154    o fix mnc flags in pkg/seaice so that they are "owned" by seaice,
155      not mnc -- this mistake was found by JMC and is now corrected
156    
157    checkpoint57g_post
158    o add Adams-Bashforth 3rd Order time stepping:
159      - default remains AB-2 (#undef ALLOW_ADAMSBASHFORTH_3)
160      - not yet implemented with NH, CD_Scheme, pTracers, MNC_pickup ...
161    checkpoint57g_pre
162    
163    o make lambda[Theta,Salt]ClimRelax spatially varying
164      (default remains spatially uniform constant based on tau)
165    o added new control variables
166      * init. uVel, vVel, etanN
167      * lambda[Theta,Salt]ClimRelax
168    o separate masks used for ctrl_pack/unpack 'from write_grid' output
169      (suggested by G. Forget)
170    
171    checkpoint57f_post
172    o add parameter "baseTime" = model base time = time at iteration zero
173      new function DIFF_BASE_MULTIPLE (replace DIFFERENT_MULTIPLE) to
174      account for baseTime shift
175    o move Coriolis arrays from PARAMS.h to GRID.h
176    checkpoint57f_pre
177    
178    o mnc-ifying the seaice package
179    o introduced an alternative length scale calculation for use in the limiting
180      maximum viscosity (off by default, see mom_vi_hdissip.F for details)
181    o S/R ptracers_calc_diff: argument list bug for CALL KPP_CALC_DIFF_S
182    o added modified Leith scheme with viscosity proportional to grad(Hdiv)
183      as well as grad(vort3).  Made it compatible with both approximate form
184      for the cubed sphere and full form of these gradients.  Added flag
185      useFullLeith to select between approximate and full form.  
186    o add "d0" in getcon.F to reduce differences between compilers/platforms
187      update output.txt of exp. fizhi-gridalt-hs
188    o change port_rand funtion to allow to set the seed.
189    o fix obscure MNC bug involving conversion between reals and integers
190      - it caused no problems with certain (eg. gcc, ifc) compilers but the
191        new version is now more standards-compliant
192    o adjoint-related modifications
193      * gad_dst3_adv_?: to be able to use advscheme=30 in adjoint
194      * gad_calc_rhs: fool adjoint, revert to advscheme=30 in reverse when using 33
195      * mom_vi_hdissip: to be able to use Leith scheme in adjoint
196    
197    checkpoint57e_post
198    o Adding eddy stress controls a la Ferreira et al.
199    checkpoint57e_pre (actually was tagged: eckpoint57e_pre)
200    
201    o fizhi pkg: fix AtoC and CtoA when called with same input & output array
202      update output.txt of exp. fizhi-gridalt-hs
203    o add more "Z" dimensions and associated coordinate vars to MNC
204    o pkg/exf: added twoDigitYear capability for option useExfYearlyFields
205    o parameter calendarDumps: when set, approximate months (30-31 days) and years
206      (360-372 days) for parameters chkPtFreq, pChkPtFreq, taveFreq, SEAICE_taveFreq,
207      KPP_taveFreq, and freq in pkg/diagnostics are converted to exact calendar
208      months and years.  Requires pkg/cal.
209    o diagnostics: add pickup functionality
210      - off by default for backwards compatibility
211      - current version only uses MDSIO -- MNC will be added
212    o allow to use pkg diagnostics for LAND pkg output & Shapiro Tendencies.
213    o pkg/shap_filt: fix for multi-tiles per face (CS-grid with EXCH2)
214    
215    checkpoint57d_post
216    o pkg/thsice used in the ocean: fix tile Pb related to sIceLoad forcing
217    o modify verification/ideal_2D_oce so that it tests the creation of mnc
218      output from the diagnostics package
219    o temporary fix in EXCH2_UV: add a 3rd call to fix the 24.tiles CS-grid set-up
220    o make genmake2 more portable by using ".$FS" instead of ".f" for more
221      of the test compilations (eg. IBM xlf on Mac OSX w/HFS filesys)
222    o add coordinate variables to the MNC output from the diagnostics package
223    o change MNC-flags default value: true when useMNC=TRUE
224    o add a "readgrid_mnc" flag to MNC and give model/src/ini_curvilinear_grid.F
225      the ability (off by default) to read the grid information using MNC
226    o lab_sea: use LSR_ERROR=1.E-12 for testing ; update output.txt
227    o diagnostics: fix a bug (sub-set of levels); keep full precision when averaging
228    o do snap-shot diagnostics at the middle of the time-interval (instead of
229      at the end).
230    o update exp. aim.5l_cs (use default LAND_OPTIONS.h file) and add
231      new test for AIM with thSIce + slab-ocean
232    o cpl_aim+ocn test: update output (optfile & default GMREDI_OPTIONS.h)
233    o move state variable diagnostics to the beginning of the time step ;
234      (note: still needs some work specially for snap-shot diagnostics)
235      duplicate & replace UVELVVEL diagnostics with UV_VEL_C & UV_VEL_Z
236    
237    checkpoint57c_post
238    o Change testing option (-ieee) to get closer agreement between g77 & ifort
239    o generate new output.txt files on faulks with g77 & the new -ieee option
240    checkpoint57c_pre
241    
242    o add "_d 0" in freeze ; change some "FLOAT" to "DFLOAT" and went back (TAF);
243      update output.txt of exp. global_ocean.90x40x15
244    o fix in ini_eos.F (one "_d 0" was missing): now g77 & ifc give much closer
245      results; update global_ocean_pressure & global_ocean.cs32x15 output.txt
246    o add saltFlux(+File) forcing capability with periodicExternalForcing
247    o allow to use pkg diagnostics for GM-Redi & ThSIce output
248    o diagnostics_fill: fill in up to sNx+1 or sNy+1 (if U,V or Z pt) for mnc.
249    o improvements for the MNC output from DIAGNOSTICS:
250      - correct handling of the unlimitied dimension
251      - all dims now have associated coordinate variables
252      - variables located at U, V, and Corner ("Z") points are now written
253        with the correct horzontal dimensions (eg. 'Xp1', 'Yp1') so that
254        *all* data points are output
255    o added seaice_summary.F and removed obsolete ALLOW_SEAICE's from pkg/seaice
256    o added pkg/seaice/seaice_monitor.F
257    o mdsio_readfield.F can now read files visible only to master MPI process.
258    o pkg/seaice: some test code for ice-modified ocean stress
259    o exf_getffields interpolation defaults to bilinear for all scalar forcing
260      fields (remains bicubic for wind velocity and stress).  This avoids, e.g.,
261      spurious negative numbers for precipitation and humidity.  Will cause
262      some small numerical differences for integrations using pkg/exf/exf_interp.F.
263    o pkg/ctrl/
264      * Add ctrlvec diagnostics in pack/unpack for nondimensional I/O
265        May be enabled via doPackDiag
266      *  introduce z-scaling of
267         + gradient (doZscalePack) and
268         + control (doZscaleUnpack)
269    o pkg/mdsio/
270      * enable useSingleCpuIO for state estimation (ctrl_pack/unpack) mdsio_gl.F
271      * N.B.: leave tiled I/O for tapelev (i.e. mds...vector)
272    
273    checkpoint57b_post
274    o simplify options in diagnostics_fill arguments (remove weird combinations)
275    o fix MNC coordinate variables so that they now contain per-face index
276      values (instead of xC,xG,yC,yG values) when run with EXCH2 since, in
277      general, EXCH2 grids are only aligned to a "local" coordinate system
278    o test diagnostics pkg in dic_example (no output) and ideal_2D_oce (with ouput)
279    o Implement instantaneous output within pkg diagnostics:
280      setting a negative frequency in data.diagnostics produces
281     "snap-shot" output (as opposed to time-average if freq > 0)
282    o move out off EQUIVALENCE all diagnostics that fizhi does not use ;
283      NOTE: change ptracer diagnostics name: use 2 characters to work with
284            more than 9 tracers. Add also diagnostics of advect & diffus flux.
285    o more CF compliance: convert all MNC 'iter' variables to 'T' so that it
286      becomes the coordinate variable for the 'T' dimension
287    o add CF-style coordinate variables to MNC
288      - just a first cut:  numbers are meaningless on the cubesphere and
289        missing along the T axis but otherwise it works!
290    o add surface flux diagnostics: TAUX, TAUY, TFLUX, TRELAX, TICE, SFLUX, SRELAX
291    o pkg/thSIce: read initial state from 6 files ; allow monitor to use MNC.
292    o add diagnostics of advective & diffusive flux for T & S (pTracers coming soon)
293      this is based directly on what the model compute, so that the content of
294      each diagnostics might be affected by switching options (e.g., implicitDiffusion)
295    o small changes for diagnostics (gad_biharm_?.F, arguments of S/R impldiff.F)
296    o clean up build options files for SunOS, in particular
297      - remove -traditional from xmakedepend
298      - change -xarch=v9 to -xarch=native for f77
299      - restore use of make (not gmake)
300      - add CC=gcc if using g77
301    o changes per discussion of AM, JMC, & EH3 today:
302      - move redundant "grid" variables out of "state" -- in preparation of
303        creating proper CF-style coordinate variables and in recognition
304        that any/all grid variables can be easily copied (eg. w/NCO) from
305        the grid files into any of the other NetCDF files
306      - *always* output grid variables with MDSIO (this will eventually be
307        changed)
308      - output MNC grid file if useMNC is true
309    o every instance of _END_MASTER() has been found and replaced with
310      _END_MASTER( myThid ) in order to satisfy certain picky Sun
311      preprocessors
312    o re-arrange diagnostics pkg initialisation:
313     - allow each package to extend the available diagnostics list
314     - add some checking and fix small problems (multi-threaded, ...)
315     - new S/R diagnostics_fill (replace fill_diagnostics):
316       look through the short list of active diag. (instead of the long list)
317       create function DIAGNOSTICS_IS_ON to tell if a diagnostics is active
318    
319    checkpoint57a_post
320    o this set of changes restores TAMC compatibility
321      tested for global_ocean.90x40x15 adjoint on trough
322      (what a pain)
323    
324    checkpoint57a_pre
325    o some modifs in tools/build_options for sunos
326    o call ctrl_pack for ctrl at end for optimcycle=0
327    
328    checkpoint57
329    o add horizontal bi-harmonic viscosity for vertical velocity
330      - new parameter viscA4W (defaults to viscA4)
331      - affects only non-hydrostatic code
332      - to be done: no-slip lateral boundary conditions
333    o switch back to "sflux = sflux - runoff" in exf_getforcing.F
334    o implement Implicit Vertical advection for pTracers
335    o depth convergence accelerator: replace deltaTtracer by dTtracerLev(k)
336      (implemented also for implicit vertical diffusion & advection)
337    o OBCS: extend application of tracer open boundary conditions
338      to a strip beyond the boundary of width Olx/Oly
339    o add call monitor to TAF set of required calls (flow directives)
340      and include in natl_box_adjoint
341    o untangle a few ifdefs related to cost, ctrl, autodiff
342      untangel a few ALLOW_ECCO_OPTIMIZATION
343    o Apply Cooper & Haines representative estimates also at sub-surface (k=Nr)
344      (theta2, salt2 in ecco_cost_weights)
345    
346    checkpoint56c_post
347    o OBCS as control variables
348      - update ctrl_ad_diff.list, obcs_ad_diff.list
349      - remove balance of obcs controls from default
350      - fix index bug nobcs in ctrl_init
351      - fix dummy fields filen in ctrl_pack
352      - add dummy weights for obcs
353    o lsopt: comment out fort.94 output
354    o optim:
355      - remove unnecessary header files
356      - adjusted namelists
357      - add xerbla.F to Makefile
358    o exf:
359      - multiple modifications of exf_check_range
360      - unit change in exf_init_runoff from [m/year] to [m/s]
361    o mdsio:
362      - i/o-vector change debugLevel from debLevA to debLevB
363    
364    checkpoint56b_post
365    o collect all ptracers output in an new routine (PTRACERS_OUTPUT) that
366      is called from DO_THE_MODEL_IO
367      - rename PTRACERS_STATV_WRITE to PTRACERS_WRITE_TIMEAVE
368      - introduce new parameter PTRACERS_dumpFreq (defaults to dumpFreq)
369      - clean up PTRACERS_WRITE_TIMEAVE a little
370    o add another verification experiment that tests both the cfc-pkg and
371      the gchem-pkg with GCHEM_SEPARATE_FORCING undefined, that is with
372      reactive tendencies treated inline with regular timestepping
373    o testreport previously did a lousy job of comparing small numbers, so
374      we (Ed and Martin) changed the  way the cut-off of 1.e-12 is
375      implemented in the little c-progam tmp_cmpnum.c which is embedded in
376      testreport.
377    o ptracers_monitor: bug fix for MPI
378    
379    checkpoint56a_post
380    o GCHEM: finish reorganizating the package
381      - forward_step calls GCHEM_CALC_TENDENDY, which computes gchemTendency
382        (introduces another 3D-array for each passive tracer, but only if
383        GCHEM_SEPARATE_FORCING is undefined. For GCHEM_SEPARATE_FORCING
384        gchemTendency is not needed because the timestep is done separately)
385      - gchemTendency is added to gPtr in GCHEM_ADD_TENDENCY
386      - GCHEM is now---more or less cleanly---separate from PTRACERS
387      - to bo done: handling of surfaceForcingPtr that is needed for KPP not
388        so clear to me how that should be done in a general way.
389    o CFC: improve formatting of output in CFC_ATMOS
390    o PTRACERS:
391      - rename GCHEM_MONITOR to PTRACERS_MONITOR and call it from MONITOR, so
392        that ALL experiments with ptracers enable can be checked. This makes
393        GCHEM_MONITOR obsolete.
394      - include a runtime parameter PTRACERS_monitorFreq that defaults to
395        monitorFreq
396      - set default PTRACERS_write_mdsio to false if PTRACERS_write_mnc is true
397    o add PTRACERS (PTR0[1-5]) to testreport output
398    o exf_check_range:
399      * default changed to .TRUE.
400      * will check values for niter0 if debLevA, every timestep if debLevB
401      * STOP in exf_check_range if 'out of range'
402      * range chosen generous to allow for potential extema
403      TBD: a version with stricter range
404           permitted range would be runtime parameters
405    o GMredi:
406      - fix ldd97 slope limit ; extend valid domain of Psi-Bolus ;
407      - change S/R GRAD_SIGMA to be valid in the overlap on CS-grid.
408      - change the default GMREDI_OPTIONS.h: compile everything except Visbeck
409    o GCHEM:
410      - move call to GCHEM_FORCING_SEP, so that it is now called before
411        the blocking exchanges to avoid computing halos in GCHEM_FORCING_SEP
412      - introduced a useGCHEM runtime flag and applied it everywhere.
413      - renamed PTRACERS_SEPARATE_FORCING to GCHEM_SEPARATE_FORCING;
414        this flag is now only visible within GCHEM-pkg routines.
415      - moved gchem_forcing_int temporarily into ptracers_forcing, this will
416        be replaced by a 3D array that is computed before thermodynamics; for
417        this, the tracer ID iTracer had to be included into the parameter list
418        of ptracers_forcing
419      - set up forward_step to call gchem_forcing, that will replace
420        gchem_forcing_int in ptracers_forcing
421      - cleaning up
422    o small cleaning of exch2: remove files that are also in eesupp/src
423    
424    checkpoint56
425    o AIM: read land-Fraction earlier (from ini-fixed) and monitor land at nIter0
426    o mnc: cleanup "full" files--fixes out-of-memory problem
427    o ECCO-GODAE
428      * model/, pkg/, code/, input/ now complete w.r.t. ECCO-GODAE production setup
429      * fully merged and updated from SIO code
430        windstress sign change affects
431        - exf_inscal_[u/v]stress
432        - sign of xx_tau[u/v] adjustments
433        - signs in cost_scat
434      * ctrl_get_gen: avoid update of tau[u/v] for first few days
435      * natl_box_adjoint updated and compressed
436      * 2-level checkpoint switch added
437        (tested in EXP. 1 of natl_box_adjoint)
438      * new switch doInitXX to avoid init. of xx_... in optimcycle=0
439    o SVD
440      * first complete, non-hacked version for SVD calculations
441      * all interfaces clean w.r.t to handling of xx_..., adxx_..., g_xx_...
442        performed via direct access files admtlm_vector.it????
443        (via ctrl_[un]pack)
444      * optimcycle is used for ARPACK iteration counter
445        (note: adxx_... is iterated, rather than xx_...; latter is constant!)
446      * EV problem ok w.r.t. L2-norm in tangent space; need to check other norms
447        and add linear transforms where necessary
448      * controls are initial/final SST, SSS (can be extended; need to check
449        ctrl_set_[un]pack_xyz.F according to ctrl_set_[un]pack_xy.F
450    o mdsio: filename info to both stderr, stdout
451    o exf: exf_inscal_runoff: separated default conversion [m/year] -> [m/sec]
452      from sign change
453    
454    checkpoint55j_post
455    o isolate dissipation tendency (allow to keep it out off AB) in V.I form.
456      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
457    o add consistent build directories and .cvsignore files to verification
458    o added viscA4GridMin and viscA4GridMax for more control on biharmonic viscosity
459    o make all subroutines 30 or less characters in length for certain older
460      compilers to work (a thorough search only turns up two routines in
461      pkg/ptracers)
462    o allow (vecinv only) a different horiz. viscosity for Divergence and Vorticity;
463      affects (truncation level) output.txt of global_ocean.cs32x15(&.thsice)
464    
465    checkpoint55i_post
466    o change arrays for total vertical diffusivity (2.D if explicit,
467      3.D if implicit) ; each ptracer uses its own background value.
468    o added mnc/NetCDF output capability to ocn_compon_interf
469      - added bits to verification/cpl_aim+ocn so that it can run on
470        ITRDA and other clusters without the mpirun "-wd" option
471    o fixed wayward endif in mom_fluxform.F that messed up cyclindrical
472      configuration
473    o give MNC the ability to create additional files rather than
474      exceeding a specified file size limit "MNC_MAX_FILESIZE"
475      - the default is just less than 2GB which is a practical limit
476        on many systems
477    o Compute the non-local term using either KPP vertical diffusivity (=default)
478       or the total vertical diffusivity (when KPP_ghatUseTotalDiffus=T)
479    
480    checkpoint55h_post
481    o add verification test "vermix"
482    o remove all the *_ioinc flags and replace with the single global
483      outputTypesInclusive flag
484    o allow to set a vertical profile of vertical diffusivity for T & S
485    o call PACKAGE_BOOT & PACKAGES_READPARMS just after INI_PARMS
486    o useMNC moved from data.mnc to data.pkg
487    
488    checkpoint55g_post
489    o Renaming carbon AD experiments to comply with testreport conventions
490    o Updating adjoint of Held-Suarez hs94.1x64x5
491    o Fixing directives for non-ECCO forward_step, after ECCO directives
492      have been fixed to avoid recomp. of do_oceanic_phys
493      Works well for global_ocean.90x40x15,
494      but recomp. issue remains for carbon
495    o Updating adjoint output for natl_box_adjoint after
496      pkg/ecco has been modified (see taga c55d_post)
497    
498    checkpoint55f_post
499    o rename to timeave_init_fixed
500    
501    checkpoint55e_post
502    o some delicate re-shuffle of store directives to avoid one
503      extra call of do_oceanic_physics
504      affects ecco_the_main_loop.F, do_oceanic_physics.F
505      checkpoint_lev1_directives.h
506    o NB: this may break global_ocean adjoint temporarily,
507      but it is clear how to fix it. Will do later, need this now.
508    
509    checkpoint55d_post
510    o ECCO specific cost function terms (up-to-date with 1x1 runs)
511    o ecco_cost_weights is modified to 1x1 runs
512    o modifs to allow observations to be read in as
513      single file or yearly files
514    o enable to read exf forcing fields as either
515      single file or yearly files (flag useExfYearlyFields)
516    checkpoint55d_pre
517    
518    o switch between 2-level and 3-level checkpointing
519    o add ability of MNC to write local and "partial" (eg. 2D slices where
520      the full 3D field is never actually stored) arrays to NetCDF files
521      with the correct (that is, the complete multi-dimensional) set of
522      array indicies
523      - used in mom_vecinv() to write the diagFreq output
524      - tested (demonstrated) in verification/aim.5l_cs
525    o further mnc-ification
526      - add verification/lab_sea to the list with mnc setups
527      - fix undefined mnc v-names in cd_code
528      - add kpp to mnc output (both snapshot and timeave)
529    o non-hydrostatic code
530      - added horizontal viscosity parameter viscAhW for w, that replaces viscAh
531        in calc_gw.F
532      - defaults to viscAh
533      - this is useful, when I want to use viscAh=0 (e.g., only biharmonic
534        friction or Leith) in non-hydrostatic mode, as long as there is
535        no biharmonic friction and/or Leigth or equivalent for vertical velocity.
536    o pkg/cost
537      extend simple cost functions to treat time mean quantities
538      (T,U,V) via cost_accumulate_state from cost_tile
539    o multidimAdvection on CS-grid: implement the full 3 pass ; overlap needs to
540        be 2 times larger than the minimum size the advection scheme requires.
541        now get a perfect conservation of salt in advect_cs test-exp (updated)
542    o GGL90 (Gaspar's TKE mixed layer)
543      - add horizontal diffusion of TKE, requires exchanges in
544        do_fields_blocking_exchanges, horizontal diffusivity is zero by
545        default. In OPA there is no horizontal diffusion of TKE but the
546        mixing coefficients are computed from a horizontal average of TKE of
547        6 points or so. I think that diffusion has a little more physical
548        justification.
549      - clean up ggl90_calc in the hope of reducing memory usage (this hope
550        was in vain)
551      - mask tke-variable in ggl90_init
552    o fix mask Pb in multidimAdvection on CS-grid (still a small Pb with ipass)
553    o fix biharmonic diffusion on CS-grid.
554    o more obcs stuff
555      - added obcs_external_fields_load as an alternative to the EXF-pkg option
556        for reading boundary values. This routine is called from
557        obcs_prescribe_read
558      - updated obcs_check
559      - changed sponge layer relaxation parameter units for days to seconds
560      - turned off sponge layer by default
561      - changed argument list of OBCS_CALC to myTime+deltaTclock
562      - fixed about 35 bugs in obcs_external_fields_load
563    
564    checkpoint55c_post
565    o obcs stuff
566      - new runtime flags useOBCSprescribe, useOBCSbalance
567      - re-arranged obcs_calc
568      - moved exf_getobcs to obcs_prescibe_read
569        obcs_prescibe_read is called after ORLANSKI stuff
570        and independent of it (executable can contain all).
571      - updated obcs_check
572      - added exchanges for U,V,gU,gV for useOBCSprescribe=.TRUE.
573        These may be necessary only if tangential velocities are
574        prescribed at OB, not sure, needs testing.
575    o make the MNC_CW_ADD_VATTR_* subroutines all take scalar arguments
576      which simplifies the calls and passes the ifc check-bounds test
577    
578    checkpoint55b_post
579    o add a 2D scalar, Z location, exchange_2 routine.
580    o EXCH_UV for CS-grid: add one u,v in the corner-halo region, allows
581      to compute vorticity on a wider stencil [e.g., vort3(0,1)&(1,0)]
582      affects advect_cs results (for the wrong reason): update output.txt
583    o use a more standard discretization for biharmonic viscosity ;
584     (original version still available with #define MOM_VI_ORIGINAL_VISCA4 )
585      affects results of dome set-up: update output.txt
586    o fix gad_advection.F (CubedSphere part), back to version 1.23
587    o fix bug in mom_vi_del2uv.F (CubedSphere part).
588    
589    checkpoint55a_post
590    o merged code to
591      * prescribe/read time-dependent open boundaries
592        (works in conjunction with exf, cal)
593      * sponge layer code for open boundaries
594      * each boundary N/S/E/W now has its own CPP option
595        (healthy for the adjoint)
596    
597    checkpoint55
598    o up-to-date adjoint of previous breaks
599      - natl_box_adjoint: problem for exp 12, 13: cost = 0. needs fix
600      - global_ocean_ebm: adjoint still needs fix (TLM ok)
601      - global_ocean.90x40x15: extended GMREDI_OPTIONS.h
602      - carbon: * remove tr1-related adjoint verification
603                * add ptracer as control variable
604    o remove all tr1-related code (ALLOW_PASSIVE_TRACER)
605      (adjoint stuff still has some tr1 'names', but all use ptracer arrays)
606    
607    checkpoint54f_post
608    o in verification/carbin/ remove experiment related to
609      ALLOW_PASSIVE_TRACER (array tr1 etc)
610      code_ad/ input_ad/ results_ad
611    
612    o add two new packages
613      - ggl90, TKE-model of Gaspar et al. (1990), Blanke+Delecluse (1993)
614        + subject to optimization (memory)
615      - opps, OPPS (ocean penetrative plume scheme) of Paluszkiewicz+Romea (1997)
616        + subject to reordering (many GOTOs in the original code)
617        + so far opps is called for every (i,j) point, and then operates in
618          the vertical; one may want to reorder the scheme in order operate in
619          horizontal slabs at the cost of (a lot of) memory, at least ten new 3D
620          fields)
621    o overhaul of IO so that we now have flags for MDSIO and/or MNC
622      - all verification tests compile and run with linux_ia32_g77
623      - defaults are compatible with current input files--nothing
624        should change if you were not previously using MNC
625      - MNC output has been added in numerous places (eg. timeave)
626        but there are still a few writes not yet do-able with MNC
627        (this is in progress)
628      - flags now allow for either/or/both use of MDSIO and MNC and
629        documentation will soon follow
630      - numerous small formatting cleanups for ProTeX
631    o add version info (via BUILD_INFO.h) to MNC and stdout
632    
633    checkpoint54e_post
634    o add two new packages
635      - pp81 (Packanowski and Philander, 1981), Richardson number and
636        stratification dependent mixing
637      - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
638      - these scheme operate in a similar manner as KPP (without ghat, of
639        course), however there is only one diffusivity that is used for both
640        temperature and salinity (and passive tracers)ç
641    o add offline package
642    o add "verification/dic_example" which contains a dic-gchem-ptracer setup
643      provided by Stephanie Dutkiewicz
644    o genmake2: add ability to search for C compilers and cleanup test output
645      - fixes recent SX-6 problems and should help with others (eg. HP-UX)
646    
647    checkpoint54d_post
648    o data.diagnostics: if levels() is unspecified then ALL levels are diagnosed
649    o bug fix in pkg/cal/cal_addtime.F for TheCalendar='model' day count is wrong,
650      leading to additional shift by 5 days each year of integration
651       (i.e. leading to considerable offset over the years)
652    o update global_ocean.cs32x15/thsice: use z* + RealFW + staggerTimeStep
653    o start with no AB and no initial filtering (staggerTimeStep):
654      change the results of test-exp: hs94.128x64x5, hs94.1x64x5 & hs94.cs-32x32x5
655    o move ocean specific S/R calls from forward_step.F to do_oceanic_phys.F
656      (external loading & cpl import/export stay in forward_step.F)
657    o update coupling interface to work with new staggerTimeStep
658    o change MDSIO ptracers_pickup.
659    o fix a bug in Flux deriv. vs Ts (pkg/aim_v23/phy_suflux_sice.F);
660    o genmake2 fixes so netcdf now works on halem ("osf1_alpha_*")
661    o bugs fixed in kpp_calc.F (ustarY) and external_forcing.F (Qsw & Partial-cell)
662    
663    checkpoint54c_post
664    o replace surfaceTendency U,V,S,T,Tice,Ptr by surfaceForcing U,V,S,T,Tice,Ptr
665      this affects (truncation error) output.txt of test-exp:
666       global_ocean_ebm,_pressure,.cs32x15(&.thsice), lab_sea & natl_box
667    o pkg/kpp: replace pMask by maskC to reduce memory size (one 3.D array)
668    o change Qnet to always be the net heat flux, (+upward).
669      affects (truncation error) output of natl_box exp.: updated
670    o define the max number of passive tracers in PTRACERS_SIZE.h
671    o start to test mnc routinely in exp0
672    o add sea-ice loading (sIceLoad) as a new forcing field.
673    
674    checkpoint54b_post
675    o add testreport "-j JOBS" option for parallel builds (tested and pretty
676       impressive on Altix and Opteron systems)
677    o diagnostics can now write NetCDF files through the mnc package
678    o staggerTimeStep & NLFS: update pkg aim_v23 & thsice; update aim.5l_cs output
679    o staggerTimeStep & multi-Dim-Advec: Exch(U,V) added
680    o staggerTimeStep & NLFS: rescale T & S surface tendencies.
681      affects (truncation error) output of lab_sea & natl_box exp.: updated
682    o change pickup _cd & _ptracers (old pickup restart: usePickupBeforeC54=.T.)
683    
684    checkpoint54a_post
685    o re-write staggerTimeStep: step fwd U,V and then T,S (reverse the order).
686    o change pickup file (to restart from old pickup, set usePickupBeforeC54=.T.)
687    o get a perfect restart when using RealFreshWaterFlux + NLFS (not finished)
688    o update output of all exp. that use staggerTimeStep (except hs94.cs & 2D)
689      + internal_wave (shift in writing cg2d_ini_res)
690    checkpoint54a_pre
691    
692    o require forcing_In_AB=.FALSE. and remove surfaceTendencyTice from pkg/seaice
693      - modified verification/lab_sea and natl_box_adjoint accordingly
694    
695    checkpoint54
696    checkpoint53g_post
697    o prepare splitting of thermodynamics: store convect.counter in common block
698    o store d.etaH/dt (instead of Div.hV) in common ; affects (truncation error)
699      output of: global_ocean.cs32x15, global_ocean_pressure & internal_wave
700    o cnh's modifs to gad_advection.F for cube-sphere multi-dim advection
701    o new parameter "nShapS": allow to treat differently S from T (nShapT)
702    o separate Vert.Advec.Scheme from horizontal Advec.Scheme (T & S)
703    o restore adjointability
704    
705    checkpoint53f_post
706    o modifications that affect AIM experiment results (update output.txt):
707      - no advection of S at top interface Nr (pkg/generic_advdiff)
708      - air surf. temp: use lower value between T0 & T1 (phy_suflux_prep.F)
709    o AIM pkg:
710      - include stability function into surf.Flux derivative relative to Tsurf
711      - calculate clear-sky radiation & surface temp. change (for diagnostics)
712    
713    checkpoint53e_post
714    o merged cylindrical coord configuration
715    o added rotating_tank experiment
716    checkpoint53e_pre
717    
718    checkpoint53d_post
719    o faulks upgraded: re-generate output.txt that have changed:
720       global_ocean.cs32x15(.thsice), global_ocean_ebm, lab_sea, natl_box
721    o Added Bryan and Lewis, 1979, vertical diffusivity profile
722    o pkg/land: fix problem in land_impl_temp.F when Ts arround freezing.
723    o added Sadourny discretization of Coriolis
724      - moved some PARAMETERS from mom_*_coriolis.F to PARAMS.h
725      - re-enabled use of omega3 (useAbsVorticity)
726    o added Leith (Phys. Fluids, 1968, 10, 1409-1416) variable viscosity for
727      vector-invariant equations
728      - note: does *NOT* yet use same variable visc. for no-slip BC's.
729    o recoded the lateral boundary conditions for non-hydrostatic w, this time
730      hopefully without new bugs
731      - still to do: biharmonic friction for non-hydrostatic w
732    o bug fix for mom_*_sidedrag: rA -> rAs,rAw
733    o regenerated output for global_ocean_ebm (using -ieee)
734    o fix mom_common/mom_*_sidedrag.F to recover numeric output prior to creation
735      of mom_common/
736      - simple re-arrangement of instructions within computing loop
737    checkpoint53d_pre
738    
739    checkpoint53c_post
740    o new version of coupler for AIM+thSIce and Ocean models
741     - new fields (SSS,h_MixLayer ...) are exchanged through the coupler
742     - land: change Evaporation of snow
743     - aim with thSIce: fix bug in snow-precip.
744    o changes to calc_gw.F
745     - bug fix for w^2 term near the bottom boundary
746     - (hopefully) improve the lateral slip boundary condtions for use with
747        partial/looped cells
748      - because the bug fix changes two verification experiments anyway (exp5
749        and plume on slope), change the lateral boundary condition from half slip
750        to the value of no_slip_sides
751    o ebm package wasnt quite up to the parallel task. Fixed that.
752    o Adjoint of EBM package + verification
753      * TLM OK
754      * ADM not sufficient accuracy yet (needs further testing)
755    
756    checkpoint53b_post
757    o Commiting new energy balance model to repository
758      * package is pkg/ebm
759      * verif. is verification/global_ocean_ebm
760      * references are in ebm_driver.F
761    C      * X. Wang, P. Stone and J. Marotzke, 1999:
762    C        Global thermohaline circulation. Part I:
763    C        Sensitivity to atmospheric moisture transport.
764    C        J. Climate 12(1), 71-82
765    C      * X. Wang, P. Stone and J. Marotzke, 1999:
766    C        Global thermohaline circulation. Part II:
767    C        Sensitivity with interactive transport.
768    C        J. Climate 12(1), 83-91
769    C      * M. Nakamura, P. Stone and J. Marotzke, 1994:
770    C        Destabilization of the thermohaline circulation
771    C        by atmospheric eddy transports.
772    C        J. Climate 7(12), 1870-1882
773    o Will need long integration testing.
774    checkpoint53b_pre
775    
776    o created pkg/mom_common in preparation for variable viscosity code
777    o renamed and split ini_mnc_io
778    o pkg/land: only liquid water can diffuse or run-off
779    o AIM using land: soil wetness availability account for snow
780    o added printMapIncludesZeros to EEPARMS namelist
781    
782    checkpoint53a_post
783    o restore TAMC compatiility for exf_constants.h
784      (no usage of _d in .h)
785    o Additional storing in KPP in an attempt to fix
786      TAMC problem with adjoint of KPP code.
787      (no success...)
788      Identical code works fine with TAF.
789    o Fixed verification/natl_box_adjoint experiments.
790      Initial conditions for Experiments 4 and 5 are now
791      set to "SEAICE_initialHEFF=0", which is more reasonable,
792      and hence gives results closer to that of Experiment 2.
793      Experiment 6 requires "SEAICE_initialHEFF=1" and is working once again.
794    
795    checkpoint53
796    o stable checkpoint with up to date adjoint
797      TLM tests only run for 1st grdchk at the moment. Its unclear if
798      this is a code problem or a problem with resetting code for g_
799      variables that is being autogenerated wrong.
800      Otherwise:
801       o code is testing well on Linux (P4 and AMD), SGI Alitix and Irix.
802       o IBM and HPQ tests could not be run because NCAR (IBM) and NCCS (HPQ)
803         are both still in chaos following their security messes.
804    
805    checkpoint52n_post
806    o various build (mostly genmake2) changes including:
807      - ability to build/run more easily within Cygwin and MacOS X
808      - more complicated Makefiles with a stronger dependence on Gnu Make
809    o pkg/seaice modifications
810      - added SEAICE_deltaTtherm and SEAICE_deltaTdyn in order to reduce cost
811        of pkg/seaice.  For time being, SEAICE_deltaTtherm = deltaTtracer
812        and SEAICE_deltaTdyn must be integer multiple of SEAICE_deltaTtherm
813      - changed proxy for geostrophic velocity and updated
814        verification/lab_sea/results/* accordingly
815      - removed ADI dynamic solver from pkg/seaice
816      - replaced all occurrences of 1/CSTICE or 1/CSUICE
817        they caused a segmentation fault under certain circumstances
818      - removed unused field WATR
819    o bug fix in exf-package:
820      -  u/vwind are defined at tracer/pressure points. The values of u/vwindmask
821         now reflect that.
822    o small fixes in the cal-package:
823      - set reference date to first of January for the 'model'-calendar
824      - failing of cal_CheckDate in cal_FullDate now actually results in a
825        warning
826    o small modifications in exf-package to increase flexibility:
827      - change climtempfreeze from a constant to a runtime parameter that
828        is specified in data.exf_clim (default = -1.9)
829      - introduce runtime parameter windstressmax (default = 2.0) that is
830        specified in data.exf
831    o fix in pkg/thsice:
832      - update Evap (Tsf changes) to be consistent with Latent heat flux
833      - maintain snow precipitation unchanged (even if Tsf >=0).
834     both affect global_ocean.cs32x15/(.thsice) results ; update output.txt.thsice
835    
836    checkpoint52m_post
837    o commented out call to cal_GetMonthsRec in swfrac.F and added some comments;
838      this does not change any of the results, because myIter=0 in swfrac always
839      lead to jwtype=2 (the default anyway), but the call makes little sense
840      as a default
841    o no SHORTWAVE HEATING lost at the bottom; affects lab_sea output; updated
842    o re-work pkg/thsice interface with ocean & bulk_force pkg to allow
843      atmospheric model (AIM) to use it ; add a "slab ocean" component.
844    o pkg/aim_v23 : add interface to call thermodynamic sea-ice (thsice)
845    o update global_ocean.cs32x15/output (.thsice) after changes in pkg/thsice
846    o extending useSingleCpuIO option to work with new exch2 I/O format
847      - old-style, missing-tile I/O is still accessible by defining CPP
848        option MISSING_TILE_IO in pkg/mdsio/MDSIO_OPTIONS.h
849    o monitor package can write to NetCDF files and/or STDOUT
850    o fix re-definition bug in MNC_GRID_INIT_ALL()
851    o doc/api_reference added
852      - a framework for building an API Reference Manual using all
853        the "protex" comments embedded in the code
854      - see pkg/generic_advdiff, pkg/mnc for examples
855    o MNC:
856      - make myThid the last argument for all subroutines
857      - new default for the grid files: NO halos
858      - add useMNC and other run-time flags
859      - separate per-file-group handling of the unlimited dimension
860      - early initialization of MNC w/ flags read at the eeboot stage
861        and lookup tables set in initialize_fixed
862      - write all MNC output to a freshly-created directory
863    o thermodynamics sea-ice (thsice) is now tested with testreport.
864    o test exp. advect_cs: use the standard cs32 grid ; update output.
865    o Added functionality to grdchk:
866      pick global i,j,k position (or nearest wet) where to perform check.
867    
868    checkpoint52l_post
869    o new land formulation:
870      a) use ground enthalpy as prognostic variable to ensure exact
871         energy conservation.
872      b) account for water temperature and for latent heat of freezing
873         in all processes (rain, run-off, ground storage)
874      c) compute surface and ground temperature implicitly.
875    o aim_v23 modification for new land model:
876      a) Treat separately land / ocean / sea-ice surface fluxes
877         to allow implicit computation of land & sea-ice surface temp.
878      b) add snow precipitation.
879    checkpoint52l_pre
880    
881    o fix problem (when 1 tile is empty) in min/max monitor.
882    o fix bug in timeAve (u,vZetatave in common block)
883    o no restoring terms under ice for pkg/seaice
884    o moved SEAICE_DO_DIAGS to S/R do_the_model_io
885    o bug fix for pkg/seaice pickups
886    o change MNC call locations and add coordinate attributes
887    o mask vorticity at the corner ; affects global_ocean.cs output
888    o fix ini_curvilinear_grid ; test CS experiments with mpi
889    o aim.5l_cs: modify sea-ice fraction input file ; update output
890    o exf: Adding simple range check routine for exf fields after read
891    
892    checkpoint52k_post
893    o removed top-level directory "diags"
894      - we migrated these functions to pkg/timeave a long time ago
895    o fixed bug introduced in pkg/monitor
896    o accuracy ctrlprec = 32 insuffient for gradient checks using
897      averaged fields (I/O via cost_averages)
898      -> use ctrl.h in active_file*.F to control I/O precision.
899    o paramter list of CALL ADTHE_MAIN_LOOP
900    o added initial do_the_model_io to ecco
901    o set all ...Freq to zero after cost_final
902      taveFreq, dumpFreq, pChkptFreq
903    o MAIN and ECCO differentiability restored
904    
905    checkpoint52j_post
906    o fix nchklev in tamc.h for global_ocean...
907    o Bringing flow and store directives up-to-date
908    o Really weird thing!
909      call do_the_model_io from the_main_loop with parameters
910      starttime, niter0, instead of mytime, myiter, screws up the adjoint:
911      TAF places a faulty re-call of initialise_varia
912      after cost_final call which should not be there!
913    checkpoint52j_pre
914    
915    o tweaked pkg/mdsio/mdsio_readfield.F to have more useful logic and
916      error messages
917    o fix errorMessageUnit problem. remove old version of mdsio from eesup/src
918    o modified pkg/mdsio/mdsio_readfield.F -- commented out diskspace-eating
919      debug output
920    o modfied mdsio_writefield.F to handle non-global files under exch2
921    o update AIM Cubed-Sphere exp (aim.5l_cs):
922      use land, p*, and Franco.M forcing fields with fractional land-sea mask.
923    o update AIM Equatorial Channel exp:
924      use standard aim_v23 pkg and change the SST fields to be more realistic.
925    o globalFile now works with exch2
926    o merged mom_vi_calc_relvort3.F, mom_vi_del2uv.F and
927      mon_vort3.F to make exch2 friendly with >1 tile per cube face
928    o limit timeave output for hi-res integrations
929    
930    checkpoint52i_post
931    o removed CPP_EEOPTIONS.h from verification/*/code
932    o updated the tiling for global_ocean_pressure
933    checkpoint52i_pre
934    
935    o update aim.5l_LatLon using the standard aim_v23 pkg (instead of
936      the old pkg/aim).
937    
938    checkpoint52h_pre
939    o shortened offending lines in exch2_send_rx?.template
940    o modified W2_EXCH2_TOPOLOGY.h to reflect current topology generator
941    o genmake2: add build & execute test for NetCDF code
942    o modded aim.5l_cs and global_ocean.cs32x15 to use exch2, removed
943      old grid files, moved CPP_EEMACROS.h to pkg/exch2
944    o added useSingleCPUIO flag to monitor.F and mon_out.F
945    o added temporary hack for sea-ice dynamics on the cube:
946      metric terms are ignored and it is assumed that
947      there is no sea-ice on cube faces 1, 2, 4, and 5.
948    
949    checkpoint52f_post
950    o added exch2 cube routines to pkg/exch2
951    o modified hs94.cs-32x32x5 to use it
952    o added new grid files to hs94.cs-32x32x5
953    checkpoint52f_pre
954    
955    checkpoint52e_post
956    o first attempt to solve vertical advection (momemtum & T,S) Implicitly
957      for now, only implemented with Lax-Wendroff (tracer) and VectInv (mom)
958    o step.1 : rewrite (as in MultiDimAdvec) explicit tracer stepping (gad_calc_rhs.F)
959      to work with implicit vertical advection and AB ;
960    o Implic. vert. advect. implemented with flux-limiter, c2, u3 and c4 scheme.
961    o update output (gad_calc_rhs.F changes affect truncation error) of exp:
962     front_relax, global_ocean .cs32x15 & _pressure, internal_wave, lab_sea, natl_box
963    checkpoint52e_pre
964    
965    o fix bug in impldiff when Nr=1 or Nr=2.
966    o change the albedo in pkg/thsice (as GISS model); update output_thsice.txt
967    o little changes (fftpack, aim/phy_suflux ...) to pass the "checkbounds" test.
968    o fix deltaTfreesurf in update_cg2d.F (left from c45d_post): affects 2
969      ocean exp. that use NLFS: global_ocean.cs32x15 & global_ocean_pressure
970    o added exf_offset_atemp for Celsius to Kelvin conversion of atemp
971    o eesupp/inc/EEPARAMS.h: MAX_NO_PROCS=1024
972    o pkg/cal/cal_toseconds.F fix for long (>60 years) integrations
973    
974    checkpoint52d_post
975    o re-tiled many expts to allow comparison in multi-processor mode
976      - updated output accordingly
977      - changed hs94.128x64x5 to use intial T from file rather than use the
978        random number generator
979    o add infrastructure in model routines for fizhi and gridalt packages
980    o change global_ocean.cs32x15 because of Pb with GM on CS-grid.
981    o changes to permit hi-res, cubed-sphere, configuration
982      - added useSingleCpuIO capability to mdsio_readfield.F and exf_interp.F
983      - added "#undef ALLOW_USE_MPI" support to eesupp/src/scatter_2d.F
984      - added pkg/exf/exf_set_uv.F for on-the-fly interpolation and rotation
985        of surface winds for the cube
986      (A verification experiment, based on global_ocean.cs32x15, but with
987       pkg/seaice turned on and with on-the-fly interpolation from the NCEP
988       Gaussian grid is described in MITgcm_contrib/high_res_cube/README_ice,
989       complete with example surface forcing files and matlab scripts to look
990       at the output and compare it with that of global_ocean.cs32x15.)
991    o packages pickup: $PKG_write_pickup called from packages_write_pickup ;
992       but call to $PKG_read_pickup remains in $PKG_ini_vars: change CD_code
993       to conform to the common rule.
994    o check-in the first version of the coupler + interfaces for multi-components
995       set-up (Chris's version, adapted to work on cubed-sphere grid); use MPI.
996       - imply modification in eesupp (MPI_COMM_MODEL < MPI_COMM_WORLD).
997       - atmosphere: use pkg aim_v23 ; no sea-ice for now.
998       - ocean and atmos. share the same horizontal grid (no interpolation).
999       - exchanges between component and coupler is done in forward_step
1000    o new verification experiment, cpl_aim+ocn:
1001       coupled ocean - AIM atmosphere on cs32 grid.
1002    
1003    checkpoint52d_pre
1004    o surface flux time-av diagnostic modified for NLFS & RealFreshWater
1005    o add call to AIM pendant S/R in external_forcing & external_fields_load.F
1006    
1007    checkpoint52c_post
1008    o Fixing OPTIONS files for use of exf:
1009      - ALLOW_ECCO not needed
1010      - ECCO_CPPOPTIONS.h should not be included from
1011        EXF_OPTIONS.h/CAL_OPTIONS.h, but from CPP_OPTIONS.h
1012        as has been the case in the past
1013      - All cal/exf related options are currently set in
1014        single header file. Should remain so until we
1015        agree on a consistent new policy.
1016    o Removed all CPP options for cal package.
1017      cal has no more CPP options.
1018    o modified STOREs in GAD_ADVECTION
1019    o corrected key comp. for passkey
1020    
1021    checkpoint52b_post
1022    o new version: "thsice" of thermodynamic sea-ice pkg:
1023     - only 1 call from "forward_step"; conserve energy, fresh-water & salt.
1024     - modify fluxes but do not change theta directly;
1025     - light cleaning of bulk_force pkg (still needed with thsice).
1026     - add forcing fields + data files in global_ocean.cs32x15/inp_thsice
1027       + output_thsice.txt to test thsice & bulk_force pkgs.
1028    o put back grid & coriolis monitor output.
1029    checkpoint52b_pre
1030    
1031    o call "do_the_model_io" at the beginning (=> dump initial state)
1032    o use rhoConstFresh to define convertEmP2rUnit (was done only in ocean-P)
1033    o sort out interplay between tamc.h and PTRACERS_OPTIONS.h
1034      (need info on NUMBER_OF_PTRACERS)
1035    o missing PTRACERS headers in some routines
1036    o default tamc.h in pkg/autodiff supposed to crash
1037      to ensure proper customization
1038    
1039    checkpoint52a_post
1040    o modifications to make FREEZE (_SURFACE) flux visible to pkg/kpp
1041      - moved surfaceTendencyTice from pkg/seaice to main code
1042      - subroutine FREEZE_SURFACE now limits only surface temperature
1043        and is called in FORWARD_STEP (if allowFreezing=.TRUE.)
1044        => new output.txt for global_ocean.cs32x15 & global_with_exf
1045      - keep the old version of FREEZE for backward compatibility;
1046        global_ocean.90x40x15 left unchanged using useOldFreezing=.TRUE.
1047      - corresponding modifs for TAF directives
1048    o added surface flux output variables to TIMEAVE_STATVARS
1049    o time-averaged output for pkg/ptracers
1050    o fix problem with ECCO-related divided adjoint
1051      snapshot file was missing some ad-variables,
1052      but no warning issued by TAF
1053    
1054    checkpoint52a_pre
1055    o some bug fixes for #undef REAL4_IS_SLOW
1056    
1057    checkpoint52 = ecco_c52_e35
1058    o after testing adjoints of checkpoint51u_post
1059    
1060    checkpoint51u_post
1061    o this is the post-merge tag of the ecco-branch
1062      (needs another clean checkout and re-testing)
1063    o various natl_box_adjoint configs and results
1064      but no input fields
1065    o obcs adjoint not yet merged!
1066    o adding ECCO global 1x1 and 2x2 degree configs
1067    o updated/extended some store directives for seaice
1068    o pkg/ecco now containes ecco-specific part of cost function
1069    o top level routines the_main_loop, forward_step
1070      supersede those in model/src/
1071      previous input data.cost now in data.ecco
1072      (new namelist ecco_cost_nml)
1073    o in ctrl/ cleaned some cross-dependencies and updated CPP options
1074    
1075    checkpoint51t_post
1076    o this is the pre-merge tag of the ecco-branch
1077    
1078    checkpoint51s_post
1079    o cleanup: removed various obsolete #define-s
1080    o pkg/grdchk
1081      - renamed 'ph-grd 3' to 'grad-res'
1082      - merged from ecco-branch
1083        (remaining bug fixes for obcs gradient checks)
1084      - additional high-precision output for testreport
1085        (grep for 'precision_grdchk_result')
1086    
1087    checkpoint51r_post
1088    o cleaned up or removed CPP_OPTIONS.h files
1089    o updated results for some of the tests to reflect the new
1090      optfiles (-ieee: -O0 instead of -O3)
1091    
1092    checkpoint51q_post
1093    o cd_code:
1094      - moved cd_scheme.F -> cd_code_scheme.F
1095      - separate read_checkpoint from cd_code_ini_vars.F
1096      - separated cd_code part from write_checkpoint
1097      - updated AD_SOURCE, generated .flow
1098      - added CD_CODE_VARS.h to the_main_loop
1099      - Moving cd_code specific store dir.s to pkg/cd_code
1100    o ctrl package totally restructured
1101      - pack/unpack now optional and decoupled from
1102        xx_/adxx_ I/O
1103      - ctrl_pack/unpack cleaned
1104        (new routines ctrl_init_ctrlvar.F, pkg/ctrl/ctrl_init_wet.F)
1105      - confined inclusion of AD_CONFIG.h to where necessary.
1106    o genmake2: changed AD dependencies from SRCFILES to AD_FILES
1107    
1108    checkpoint51p_post
1109    o create initial cd_code package
1110      - WARNING: the initialization of fields within packages
1111        is broken because INI_FIELDS (where READ_CHECKPOINT is
1112        called) is called *before* PACKAGES_INIT_VARIABLES.
1113        This seems to be backwards since
1114        1) its important to initially zero the entire field including
1115           the "halo" region
1116        2) zeroing needs to be done *before* reading pickup info
1117           and the pickup call might or might not happen in any
1118           particular run
1119      - this needs an overhaul for R2
1120    o cleanup verification/*/code/GMREDI_OPTIONS.h
1121    o cleanup testreport
1122    
1123    checkpoint51o_post
1124    o bringing AD-related verif's up to date with genmake2
1125      - carbon/
1126      - global_ocean.90x40x15/
1127      - hs.94.1x64x5/
1128      - (front_relax/ )
1129    o (more) consistent directory structure for AD-related verif.'s
1130    o cleaning ALLOW_GRADIENT_CHECK -> ALLOW_GRDCHK
1131    o cleaning some ALLOW_TANGENTLINEAR_RUN -> ALLOW_AUTODIFF
1132    o bug fix in find_alpha.F for MDJWF:
1133      - modif. to alpha = 1/D*( dN/dT - rho*dD/Dt) to account for
1134        change rho -> rho-rhoConst
1135      - replace call find_rho to find_rhonum
1136    o initialisation of rFlx extended to full array (required by TAF)
1137      and shifted to thermodynamics
1138    o removed PTRACERS.h in ptracers routine
1139    o added surfacetendencyPtr to S/R parameter list pracers_forcing
1140    o Correcting initialisations for fVerU, fVerV.
1141    o helping TAF to recognize dependency on kUp for
1142      fVerU, fVerV
1143    o Replacing delZ by delR in pkg/ctrl/
1144    checkpoint51o_pre
1145    
1146    o undid all of cp51 pending some cleanups and discussion
1147    o added the [#include "AD_CONFIG.h"] statement to all files that need
1148       it for adjoint/tl #defines
1149     o re-worked the build logic in genmake2 to support AD_CONFIG.h
1150     o removed tools/genmake since it no longer works
1151    
1152    checkpoint51n_post
1153    o modifications to make FREEZE flux visible to pkg/kpp
1154      - moved surfaceTendencyTice from pkg/seaice to main code
1155      - FREEZE & EXTERNAL_FORCING_SURF moved to FORWARD_STEP
1156      - subroutine FREEZE now limits only surface temperature
1157        (this means new output.txt for global_ocean.90x40x15,
1158         global_ocean.cs32x15, and global_with_exf)
1159    o added surface flux output variables to TIMEAVE_STATVARS
1160    
1161    checkpoint51n_pre
1162    o added "#undef ALLOW_USE_MPI" support to eesupp/src/gather_2d.F
1163    o added [#include "AD_CONFIG.h"] to all files that use the following
1164      defines:
1165      - ALLOW_ADJOINT_RUN
1166      - ALLOW_TANGENTLINEAR_RUN
1167      - ALLOW_ECCO_OPTIMIZATION
1168    
1169    checkpoint51m_post
1170    o incorporating changes to get TAMC/TAF working in genmake2
1171      - added new TAMC/TAF targets to the Makefile
1172      - various cleanups related to package handling
1173      - these changes should have no impact on the forward model
1174    
1175    checkpoint51l_post
1176    o changes to pkg/cal and pkg/exf that allow and speed-up long integrations
1177     - faster algorithm for cal_addtime.F
1178     - higher precision arithmetic, where needed
1179     - pkg/exf *startdate variables changed from calendar date to
1180       model integration time
1181    
1182    checkpoint51l_pre
1183    o add salt flux to forcing fields (used when salty sea-ice forms or melts)
1184    o enable to apply restoring on S & T only in a latitude band.
1185    o update output (external_forcing_surf modif. change truncation errors)
1186       global_ocean.cs32x15, global_ocean_pressure, lab_sea, natl_box
1187    
1188    checkpoint51k_post
1189    o change default to: useNHMTerms=.FALSE.
1190     - new output.txt for atmos. exp (NHMTerms were wrong but now turned off):
1191       adjustment.128x64x1, aim.5l_Eq_Ch, aim.5l_LatLon, hs94.128x64x5, hs94.1x64x5
1192     - new output.txt for idealized oceanic exp (NHMTerms are now turned off):
1193        exp1, ideal_2D_oce
1194     - change data file of oceanic exp (leave the results unchanged for now)
1195       exp2, global_ocean[90x40x15,pressure,with_exf], lab_sea, natl_box
1196    o set gravitySign automatically according to the vertical coordinate used
1197      (and change sign: back to "logical" value: +1 when R increases downward)
1198    o added an include barrier to the default CPP_OPTIONS.h and
1199      removed the #include "PACKAGES_CONFIG.h" from it
1200    o fix a bug in mom_fluxform (from chk51j_post)
1201    
1202    checkpoint51j_post
1203    o Added some AD-related initialisations in mom_vecinv/ mom_fluxform/
1204    o adjusted some flow directives (dynamics, thermodynamics)
1205    o added cubed-sphere case to test cost function
1206    o heckpoint_lev?_directives.h now include
1207      pkg-specific directives, whenever those are enabled.
1208    o Moving pkg-specific flow directives to corresponding pkg
1209      Moving pkg-specific differentiation list to corresponding pkg
1210      Moving pkg-specific checkpoint-lev storing to corresponding pkg
1211      ---> conventions are
1212           - pkg_ad.flow
1213           - pkg_ad_diff.list
1214           - pkg_ad_check_lev?_dir.h
1215    
1216    checkpoint51i_post
1217    o merge of the branch-genmake2
1218      - knowingly breaks the older genmake
1219      - automatic generation of all ALLOW_${PKG_NAME} defines
1220      - new testreport supersedes older testscript
1221    o large number of package inclusion and header cleanups
1222    checkpoint51i_pre
1223    
1224    o new output for adjoin of global ocean vector invariant
1225    o fix for checkpoint of thermodynamic seaice and bulk_force
1226    o Steph gchem various cleanups
1227    
1228    checkpoint 51h_pre
1229    o fixed some single quotes
1230    o modify gchem pkg to be more versatile
1231    o modifications to clean up dic pkg
1232    o add pkg/cfc
1233    
1234    checkpoint51g_post
1235    o provide links for ARPACK and ADM*TLM
1236    o start removing verification/vero/
1237    o update AD-related stuff
1238      (in particular some IF-statements in model/src/ routines)
1239    o adding to verification/global_ocean.90x40x15/ adjoint of
1240      vector invariant setup
1241    
1242    checkpoint51f_post
1243    o update advect_xz/output.txt (left from chekpoint50f_pre, ini_vel modif)
1244    o Mods and bug fixes to pkg/cal, pkg/exf, etc., needed for computation
1245      of tracer Green's fucntions for ocean inversion project.
1246    
1247    checkpoint51f_pre
1248    o Added on-the-fly spatial interpolation capability
1249        "USE_EXF_INTERPOLATION" to pkg/exf.
1250      - This is a temporary Cartesian-grid hack until
1251        the super-duper ESMF coupler becomes available.
1252      - See verification/global_with_exf/README for usage example.
1253      - Removed obsolete EXFwindOnBgrid and SEAICEwindOnCgrid
1254        flags and modified pkg/seaice accordingly.
1255    o Bug fix to pkg/ptracers, pkg/generic_advdiff/gad_calc_rhs.F,
1256        and pkg/kpp/kpp_transport_ptr.F for dealing with tracer
1257        non-local transport term.
1258    
1259    checkpoint51e_post
1260    o pkg/mom_vecinv:
1261      - changes related to hFac: use S/R from aim.5l_cs/code (coriolis & vort.advec)
1262      - add time-ave diagnostic of vorticity advection.
1263    o add diagnostic (instantaneous) of Shapiro Filter effect for T,S & UV.
1264    o atmospheric geopotential: - include water vapor effect;
1265                                - use p^kappa in p* scaling.
1266    o land pkg: read initial state from files.
1267    o AIM : add stratospheric drag in the upper level
1268    
1269    checkpoint51d_post
1270    o change function ILNBLNK (=> last non-blank char.) to return zero
1271      (instead of the string length) when the string. char is empty
1272    o fix bug in dxV,dyU definition of cubed-sphere grid (ini_curvilinear_grid)
1273    o modif's to restore TAMC compatibility
1274      - avoid "_d" constructs in PARAMETER declarations
1275      - avoid interrupting lines by comment lines
1276    o Use cluster local disks for purely local I/O
1277      vs. globally visible disks needed for ctrl stuff
1278      (merged from ecco-branch)
1279      - new active_file_loc... and mdsio_..._loc routines
1280      - affected packages: autodiff, ctrl, grdchk, mdsio
1281    
1282    checkpoint51c_post
1283    o introducing integer flag debugLevel
1284      - debLevZero: suppress all output
1285      - debLevA: standard
1286      - debLevB: equivalent to current debugMode=.TRUE.
1287    o introducing pathname variable mdsioLocalDir for mdsio
1288      that can be specified at runtime
1289      (relevant for cluster I/O to local disk)
1290    `
1291    >>>checkpoint51b_post
1292    adjoint of ptracers
1293    o disentangled ALLOW_PTRACERS using new ALLOW_GCHEM
1294    o extended state in checkpoint_lev?, etc.
1295    o alternative ctrl/cost with tr1 or ptracer
1296    o new comlev1_bibj_ptracers
1297    o new ptracers.flow
1298    o made ptracers_forcing same as external_forcing_s
1299    o added verification for adjoint with ptracers
1300      - adm. grdchk fail so far
1301      - tlm. grdchk OK
1302      - checked tapelev/comlev recomputations: OK
1303    <<<checkpoint51b_pre
1304    
1305    checkpoint51a_post
1306    o added code for biogeochemistry package
1307      - new pkgs: dic, gchem
1308      - new subroutine in ptracers
1309    o modify code for biogeo packages
1310      - in model/src and pkg/ptracers
1311    
1312    checkpoint51
1313    o merged improved packages from ecco-branch (ecco_c51_e34) to MAIN
1314      - autodiff, ctrl, exf, grdchk, seaice
1315      kept separate packages
1316      - cost, ecco, obcs
1317    o updating verification/internal_wave, verification/lab_sea
1318      (all verif's pass on faulks.lcs.mit.edu RH7.3, g77)
1319    
1320    checkpoint50i_post
1321    o Preparing next differentiable checkpoint and sync
1322      of MAIN vs. ecco-branch
1323      - 1st step: this one is differentiable
1324      - 2nd step: next(! not this) checkpoint will have updated packages
1325                  from ecco-branch)
1326    
1327    checkpoint50h_post
1328    o new package "land": provide surface BC for AIM.
1329    o pkg/ptracers: apply exchange to all tracers after reading a pickup.
1330    o AIM: use true log-P extrapolation for near surface temp (= as in
1331        F.Molteni paper) ; update aim.5l_cs output.
1332    o New variable in PARM03 for more flexible pickups
1333    o somewhat cleaned package initialisation sequence for
1334      ctrl/ cost/ ecco/ in packages_... routines
1335    
1336    checkpoint50g_post
1337    o merged with release1_p17 (pkg/seaice and verification/lab_sea)
1338      - added SEAICE_MULTILEVEL for 8-category sea-ice thermodynamics
1339      - LSR sea-ice dynamic solver moved to SouthWest B-grid location and
1340        made the default because of faster convergence than ADI
1341    
1342    checkpoint50f_post
1343    o exf totally restructured
1344      - replaced all exf_set_ routines by one generic exf_set_gen.F
1345        and made sure it's still differentiable
1346      - split exf_getffields.F into new exf_bulkformulae.F
1347      - exf_inscal_/exf_outscal_ suffixes consistent with field names
1348      - updated adjoint/makefile and relevant verif. accordingly
1349    
1350    checkpoint50f_pre
1351     o AIM: near surface temp evaluated from Pot.Temp: fixed for Part Cell ;
1352          + change Evap over land. (update aim.5l_cs output)
1353     o added missing .cvsignores and made uniform across expts
1354     o changed configuration of tidal_basin_2d expt
1355     o added pkg/debug functions for tracing code in fatal crashes
1356     o tidied pkg/monitor to use MONITOR_OPTIONS.h
1357     o new fn in pkg/monitor to stop model if solution grows too big
1358     o removed lots of single quotes from comments
1359    
1360    checkpoint50e_post
1361    o make KPP work with PTRACERS
1362     - fix gad_calc_rhs to call new routine kpp_transport_ptr, which is
1363       nearly a copy of kpp_transport_s
1364     - there is no analogue to SurfaceTendencyS, so I have to use
1365       gPtr(of the surface layer) instead
1366    o add a new platform SunFire+mpi (SunFire 15000) to genmake
1367    checkpoint50e_pre
1368    
1369    checkpoint50d_post
1370    o change kpp output from multiple-record state files to single-record state
1371      files analogous to write_state.F
1372    o reduce the output frequency of cg3d-related stuff to the monitor frequency,
1373      analogous to the cg2d-related output.
1374    o fix small problem with in ptracers_write_checkpoint.F: len(suff)=512,
1375      so that writing to internal file fn (with length 512) fails.
1376    checkpoint50d_pre
1377    
1378    checkpoint50c_post
1379    o fix problem in ini_procs.F when using MPI (was there since checkpoint48f)
1380    o add monitor diagnostic of vorticity (mon_vort3.F) and potential energy.
1381    o add time-average diagnostic of U*V and vertical diffusive flux for theta.
1382    o bug fixed in convective adjustment diagnostic (multi-tile set-up).
1383    o 4th Order Adv scheme: return to previous (c40pre7) masking near boundaries.
1384    
1385    checkpoint50c_pre
1386    Merging from release1_p13:
1387    o bug fix for pkg/seaice dynamic solver
1388    o Added SEAICE_initialHEFF to pkg/seaice
1389    
1390    checkpoint50b_post
1391    o store u*,v* in gU,V instead of in guNm1,gvNm1
1392    o in order to put the momForcing out of the Adams-Bashforth:
1393      move forcing & CD-scheme calls from mom_fluxform & mom_vecinv
1394      to timestep.F
1395    o new flag "useCDscheme" (default=F); replace guCD,gvCD by local arrays
1396    o re-generate output for highly sensitive test-exp:
1397       global_ocean_pressure, ideal_2D_oce, lab_sea, natl_box
1398    
1399    checkpoint50b_pre
1400    o restore the use of momAdvection & useCoriolis flags (mom_vecinv)
1401    o corrected CPP option mismatch in exf_Bulk... functions for case
1402      #define ALLOW_ATM_WIND && #undef ALLOW_ATM_TEMP
1403    
1404    checkpoint50a_post
1405    o Bug fix for merging between c50 and KPP.
1406      ikey was passed from thermodynamics to kpp_calc via
1407      common block rather than being recomputed in kpp_calc,
1408      in contradiction with new key itdkey.
1409      New key ikppkey created, and tamc.h headers updated.
1410    
1411    checkpoint50
1412    - 2nd step of merge with ecco-branch:
1413      merge changes in ecco-branch back into main trunk
1414    - bug fix in find_alpha
1415    - more storing in gmredi_calc_tensor.F, kpp_routines.F
1416    - avoid iterative loop in ini_pressure for ALLOW_AUTODIFF_TAMC
1417    - merged some sliced AD support routines
1418    
1419    checkpoint49
1420    merged from ecco-branch:
1421    o exf:
1422      - Enable initialisation of forcing fields to constant
1423        (runtime) values.
1424      - in exf_getffields.F
1425        Reduce i-/j-loop to interior domain, discarding overlaps.
1426        That also fixes wrong TAF-key computations for key_1, key_2
1427        with bulf formulae.
1428      - exf_init.F modify #ifdef for exf_init_evap
1429      - exf_getffieldrec.F, ctrl_getrec.F
1430        The following INT-usages are not safe:
1431          fldsecs  = int(fldsecs/fldperiod)*fldperiod
1432          fldcount = int(fldsecs/fldperiod) + 1
1433        and were modified.
1434    o autodiff: checkpoint_lev...
1435      - updated storing for bulk formulae (some arrays were missing)
1436      - added state for seaice package
1437      - synchronized with main branch
1438    o DIVA:
1439      Modif.s in
1440      - the_main_loop.F
1441      - the_model_main.F
1442      and added cost_final_restore.F cost_final_store.F
1443      o With these changes, it is possible to fully separate
1444        the first forward run to compute the cost function (mdthe_main_loop)
1445        and adjoint runs over individual DIVA intervals (adthe_main_loop)
1446        into separate model executions.
1447        This enables better tuning of DIVA to given queue sizes.
1448      o Loss of cost function value in consecutive DIVA runs is
1449        fixed by storing to 'costfinal' file.
1450      o Appropriate call of ctrl_unpack/_pack,grdchk_main at
1451        beginning/end of adjoint integration is accounted for.
1452      The current changes apply to TAF-1.4.26.
1453      TAF has one remaining bug, requiring one manual change
1454      (see MITgcm manual).
1455    o cal: synchronized between MAIN and ecco-branch
1456    
1457    checkpoint48i_post
1458    o Changes to restore differentiability of code w.r.t. previous tag
1459      (mostly adding new routines to make list and replacing
1460      pressure by totPhiHyd).
1461    o Updated and merged grdchk package
1462      - has both ADM and TLM checks
1463      - works for single- and multi-proc.
1464      - output cleaned
1465      - worked successfully for parallel DIVA
1466    o genmake:
1467      - Adding -platform=SP4
1468      - Modif. for DEC Alpha (many don't have makedepend; use mkdep instead).
1469    o Modif. for DIVA:
1470      ctrl_unpack should not be called in intermediate DIVA interval.
1471      (similar thing would apply for active files such as
1472      tbar, sbar, psbar, which should not be reinitialised;
1473      only relevant for ecco-branch)
1474    
1475    checkpoint48h_post
1476    o improve "ini_p_ground" when using finite difference form for calc_phi_hyd
1477    o Added net flux to downward flux conversion to pkg/exf/exf_getffields.F
1478    o Added SEAICE_initialHEFF to pkg/seaice
1479    o ecco_the_model_main.F: SEAICE_WRITE_PICKUP must precede WRITE_CHECKPOINT
1480    
1481    checkpoint48g_post
1482    --- EOS:
1483    o compute locally the pressure for use in EOS: UNESCO, JMD95P, MDJWF
1484      store total Potential in totPhyHyd for diagnostics & EOS.
1485    o fix restart and overlap Pb when using Z-coord and EOS funct. of P
1486    --- Pressure/geopotential gradient:
1487    o use Ro_surf & R_low instead of hFac in cal_phi_hyd:
1488    o NLFS + p-coord.: eta*Alpha' is not longer lagging 1.time-step behind
1489      ( changes results of global_ocean_pressure )
1490    o NLFS + z-coord.: add eta*Rho' contribution.
1491    o accurate phiHyd when using interface-W at the middle between 2 centers
1492     ( changes results of ideal_2D_oce )
1493    o includes r* 2nd term in potential gradient.
1494    
1495    checkpoint48f_post
1496    Merging from release1_p12:
1497    o Modifications for using pkg/exf with pkg/seaice
1498      - improved description of the various forcing configurations
1499      - added basic radiation bulk formulae to pkg/exf
1500      - units/sign fix for evap computation in exf_getffields.F
1501      - updated verification/global_with_exf/results/output.txt
1502    o Added pkg/sbo for computing IERS Special Bureau for the Oceans
1503      (SBO) core products, including oceanic mass, center-of-mass,
1504      angular, and bottom pressure (see pkg/sbo/README.sbo).
1505    o Lower bound for viscosity/diffusivity in pkg/kpp/kpp_routines.F
1506      to avoid negative values in shallow regions.
1507      - updated verification/natl_box/results/output.txt
1508      - updated verification/lab_sea/results/output.txt
1509    o MPI gather, scatter: eesupp/src/gather_2d.F and scatter_2d.F
1510    o Added useSingleCpuIO option (see PARAMS.h).
1511    o Updated useSingleCpuIO option in mdsio_writefield.F to
1512      work with multi-field files, e.g., for single-file pickup.
1513    o pkg/seaice:
1514      - bug fix in growth.F: QNET for no shortwave case
1515      - added HeffFile for specifying initial sea-ice thickness
1516      - changed SEAICE_EXTERNAL_FLUXES wind stress implementation
1517    o Added missing /* */ to CPP comments in pkg/seaice, pkg/exf,
1518      kpp_transport_t.F, forward_step.F, and the_main_loop.F
1519    o pkg/seaice:
1520      - adjoint-friendly modifications
1521      - added a SEAICE_WRITE_PICKUP at end of the_model_main.F
1522    
1523    checkpoint48e_post
1524    o New S/R for diagnostic of bottom pressure (phi0surf was missing in c48d_post)
1525    o dynamics: change definition of computational domain & adapt mom_fluxform
1526      accordingly ; when viscA4=0, allows to run the dynamics with Olx=Oly=2.
1527    o following exp works with Olx=Oly=2 (and pass through checkbounds option):
1528        adjust_nlfs.cs-32x32x1 adjustment.128x64x1 adjustment.cs-32x32x1
1529        exp0 exp1 exp2 exp4 exp5 hs94.cs-32x32x5 hs94.128x64x5 hs94.1x64x5
1530        global_ocean.90x40x15 global_with_exf global_ocean_pressure
1531        inverted_barometer solid-body.cs-32x32x1
1532      (high order AdvScheme and/or multiDimAd works with Olx=Oly=2 ? not sure)
1533    
1534    checkpoint48d_post
1535    o in preparation for r*:
1536     a) use pre-computed gradient of hydrostatic potential:
1537        changes in timestep.F & mom_cdscheme.F affects results of ideal_2D_oce
1538     b) move phi0surf from calc_phi_hyd to calc_grad_phi_hyd:
1539        => affects results of glob_oce_pressure (different truncation error)  
1540      update output.txt of ideal_2D_oce & global_ocean_pressure
1541    
1542    checkpoint48d_pre
1543    o in preparation for r*:
1544      new S/R (calc_grad_phi_hyd.F) to compute Hydrostatic potential gradient.
1545      pass the 2 comp. of the grad. as arguments to momentum S/R.
1546      but for the moment, only used if it does not change the results.
1547    o add finite volume form of calc_phi_hyd for buoyancyRelation OCEANIC & OCEANICP
1548    
1549    checkpoint48c_post
1550    Modifications in treatment of initial flux forcing controls
1551    to avoid extra storing of flux fields.
1552    
1553    checkpoint48c_pre
1554    o Added tidal_basin_2d experiment (currently 1D!)
1555    o can use r* Coordinate with OBC (but Orlanski Rad. BC not yet implemented)
1556    
1557    checkpoint48b_post
1558    o r* coordinate added in #ifdef NONLIN_FRSURF block.
1559     (modification to pressure gradient not yet implemented)
1560    o mom_fluxform: new S/R mom_calc_rtrans.F computes vertical transports
1561      (for U & V) that are used for vertical advection of momentum.
1562    
1563    checkpoint48a_post
1564    o In preparation for r*, use temp. array to compute vertical transport
1565       in flux-form momentum pkg. => change results of few test-exp.
1566      Update output of: exp4, exp5, front_relax, global_ocean_pressure,
1567                        lab_sea, natl_box & plume_on_slope
1568    
1569    checkpoint48
1570    o fix small bug that was causing lot of warning (TIMER_STOP 'UPDATE_CG2D')
1571    
1572    checkpoint47j_post
1573    o add new exp. (ideal_2D_oce) to test "exotic" parameters and options.
1574    o moved adexch from forward_step to addummy_in_stepping
1575    o added exch in ctrl_map_...
1576    o aveFreq.=0. at end of cost_final to avoid overwrite in
1577      reverse checkpointing loop
1578    o Yet more changes in gmredi:
1579      * adgmredi_calc_tensor
1580        avoiding all recomputation of gmredi_slope_limit
1581      * adgmredi_x/y/rtransport
1582        added flag for excessive storing to avoid recomp. of
1583        u/v/rtans, dTdx/y/z
1584        -> this is not really necessary and very memory-consuming
1585      * adgmredi_slope_psi:
1586        consistency with gmredi_slope_limit in treatment of GM_slopeSqCutoff
1587      * gmredi_slope_limit
1588        re-activated full calculation of taperfct for case 'ac02'
1589    o updating verification/ adjoints of carbon, global_ocean.90x40x15
1590    
1591    checkpoint47i_post
1592    o GM_EXCLUDE_() replace GM_TAPER_(): by default, all the code is compiled.
1593    o add GM_Small_Number & GM_slopeSqCutoff as run-time parameters (data.gmredi)
1594      default values = 1.D-12 & 1.D+48 (=> give same results as checkpoint47f_post)
1595    o cg2dTargetResWunit: define tolerance using deltaTmom (and not deltaTfreesurf)
1596    o gmredi: fix few bugs.
1597    
1598    checkpoint47h_post (duplicate tag for PH's c48 tag, in order to move c48)
1599    This will be a good checkpoint to plug into the ecco-branch.
1600    o few modif.'s to get latest version adjointed
1601      (mainly kick out code in ini_linear_phisurf)
1602    o modif's to run adjoint with exactConserv
1603    o case GM_BOLUS_ADVEC should be cleaned
1604      S/R gmredi_slope_psi should be cleaned
1605    o verification/carbon now has exactConserv=.TRUE.
1606    
1607    checkpoint47g_post
1608    o time-average AIM output: becomes independent from statvars time-average
1609      (can be used with #undef ALLOW_TIMEAVE) ; add new variables (e.g., RH)
1610    o After TAF bug fix:
1611      Tested adjoint of gmredi package.
1612      Tests were done with checkpoint47 rather than with latest
1613      checkpoint47f_post since the latter is broken for the adjoint
1614      verification/carbon/ contains both ADM and TLM gradient checks.
1615    Here they are, before they get changed/lost/stolen.
1616    Mostly modif.'s to fix numerical sensitivities.
1617    Gradient checks OK for
1618    - GM_taper_scheme:
1619      * clipping
1620      * ac02
1621      * linear
1622      * glw91
1623      * dm95
1624      * ldd97
1625    - GMREDI_OPTIONS:
1626      * GM_VISBECK_VARIABLE_K
1627      * GM_NON_UNITY_DIAGONAL
1628      * GM_EXTRA_DIAGONAL
1629      * GM_BOLUS_ADVEC
1630    in conjunction with data.gmredi parameters to be checked in
1631    in a few minutes under verification/carbon/code/
1632    
1633    checkpoint47f_post
1634    Merging from release1_p10:
1635    o modifications for using pkg/exf with pkg/seaice
1636      - pkg/seaice CPP options SEAICE_EXTERNAL_FORCING
1637        and SEAICE_EXTERNAL_FLUXES
1638      - pkg/exf CPP options EXF_READ_EVAP and
1639        EXF_NO_BULK_COMPUTATIONS
1640      - usage examples are Experiments 8 and 9 in
1641        verification/lab_sea/README
1642      - verification/lab_sea default experiment now uses
1643        pkg/gmredi, pkg/kpp, pkg/seaice, and pkg/exf
1644    
1645    checkpoint47e_post
1646    o created a tag prior to creating a branch
1647    
1648    checkpoint47d_post
1649    o fixed bug in the oceanic pressure coordinates code: vertical viscosity
1650      at the bottom boundary had an erroneous half slip boundary condition
1651    o added bottom drag and no slip boundary condition capabilities to
1652      oceanic pressure coordinates code
1653    o added new verification experiment global_ocean_pressure, this experiment is
1654      also described in the tutorial section of the manual
1655    checkpoint47d_pre
1656    
1657    checkpoint47c_post
1658    o Added a verification experiment for a global cubed-sphere ocean run
1659      -  verification/global_ocean.cubed32x32x30
1660      -  uses pkg/therm_seaice and pkg/bulk_forcing
1661    
1662    o allow to run AIM physics with SPEEDY input files (from Franco Molteni)
1663    o allow a more accurate definition of Ro_Surf (selectFindRoSurf=1)
1664      when using P-coordinate; only implemented for atmospheric config.
1665    o OCEANICP & realFreshWater: include P-E direct effect on wVel ;
1666      NOTES: requires option NONLIN_FRSURF to be "#define".
1667    o update advect_xz/results/output.txt (left from checkpoint44g_post)
1668    
1669    checkpoint47b_post
1670    Merging from release1_p9:
1671    o pkg/seaice
1672      - removed GOTO's and added taf directives
1673      - double precision constants to reduce the g77 (Linux)
1674        to F77 (SGI) differences reported in release1_p8
1675    o tools/genmake
1676      - added SGI options
1677    o verification/testscript
1678      - updated to that of checkpoint47a_post
1679    o verification/global_ocean.90x40x15/input/eedata
1680      - modified for SGI f77 compatibility
1681    o verification/lab_sea
1682      - added description of sea-ice model
1683      - added missing matlab routines
1684      - added test of thermodynamics parallelization
1685    
1686    checkpoint47a_post
1687    o new pkg: aim_v23
1688     = F. Molteni atmos.physics (SPEEDY, ver23) adapted to MITgcm.
1689       for now, keep the same surface forcing as before.
1690     - Part-Cell implemented into AIM; check that Heat & Water are conserved
1691     - aim.5l_cs: use new aim pkg (run 10yr & get better results than before)
1692     - aim.5l_LatLon & aim.5l_Equatorial_Channel are still using old aim pkg
1693    o add diagnostic of surface correction term in monitor output
1694    
1695    o bulk_force and therm_seaice
1696    - Two packages:  bulk_force (Bulk forcing)
1697      and therm_seaice (thermodynamic_seaice) - adopted from LANL CICE.v2.0.2
1698    - Earlier integration from Stephaine Dutkiewicz
1699      and Patrick Heimbach.
1700    - Two ifdef statements for compile time,
1701       ALLOW_THERM_SEAICE and ALLOW_BULK_FORCE
1702    
1703    checkpoint47
1704    differentiable version of checkpoint46n_post
1705    o bug fix in quasihydrostaticterms
1706    o * "clean" adjoint code (in terms of extensive recomputations)
1707        can now be obtained for all GMREDI options (i.e. for
1708        - GM_VISBECK_VARIABLE_K
1709        - GM_NON_UNITY_DIAGONAL
1710        - GM_EXTRA_DIAGONAL
1711        - GM_BOLUS_ADVEC )
1712      * However, wrong gradient check problem remains unsolved.
1713      * New CPP options have been introduced for different
1714        tapering schemes
1715    o external_fields_load now part of differentiation list
1716    o pressure needs multiple storing;
1717      would be nice to have store_pressure at beginning or
1718      end of forward_step, e.g. by having phiHyd global (5-dim.)
1719      (NB: pressure is needed for certain cases in find_rho,
1720      which is also invoked through convective_adjustment).
1721    o recomputations in find_rho for cases
1722     'JMD95'/'UNESCO' or 'MDJWF' are OK.
1723    o #define ATMOSPHERIC_LOADING should be differentiable
1724    o ini_forcing shifted to begining of initialise_varia
1725    o Incorporating QNVS line search routines into MITgcm
1726      (this is separate code, and therefore not under pkg)
1727      lsopt/, optim/
1728    o Updated verification/carbon/
1729      - #define GM_VISBECK_VARIABLE_K
1730      - GM_taper_scheme    = 'ldd97'    
1731    
1732    checkpoint46n_post
1733    Merging from release1_p8:
1734    o verification/natl_box:
1735      updating new external_fields_load routine
1736    o New package: pkg/seaice
1737      Sea ice model by D. Menemenlis (JPL) and Jinlun Zhang (Seattle).
1738      The sea-ice code is based on Hibler (1979-1980).
1739      Two sea-ice dynamic solvers, ADI and LSR, are included.
1740      In addition to computing prognostic sea-ice variables and diagnosing
1741      the forcing/external data fields that drive the ocean model,
1742      SEAICE_MODEL also sets theta to the freezing point under sea-ice.
1743      The implied surface heat flux is then stored in variable
1744      surfaceTendencyTice, which is needed by KPP package (kpp_calc.F and
1745      kpp_transport_t.F) to diagnose surface buoyancy fluxes and for the
1746      non-local transport term.  Because this call precedes model
1747      thermodynamics, temperature under sea-ice may not be "exactly" at
1748      the freezing point by the time theta is dumped or time-averaged.
1749      N.B.: fairly large differences in accuracy occur across
1750            different platforms/compilers; comparison between
1751            g77 (Linux) and F77 (SGI Origin 2000/MIPSpro)
1752            generated output gives:
1753       T           S           U           V
1754      C D M    c        m  s        m  s        m  s        m  s
1755      n p a R  g  m  m  e  .  m  m  e  .  m  m  e  .  m  m  e  .
1756      f n k u  2  i  a  a  d  i  a  a  d  i  a  a  d  i  a  a  d
1757      g d e n  d  n  x  n  .  n  x  n  .  n  x  n  .  n  x  n  .
1758    
1759      Y Y Y Y  5  5  7  7  7  8 10  9  6  6  6  6  7  5  7  5  7 FAIL  lab_sea
1760    o GAD:
1761      - generated new common blocks to account for call of
1762        same gad routines with differing traceridentities
1763        (needed to modify tracerIdentity indices in GAD.h)
1764      - generated separate common blocks for case useCubedSphereExchange
1765        (Department of Futurology)
1766      - parameter lists to gmredi_?transport: added tracerIdentity
1767      - added new key indices to tamc.h
1768    o external_fields_load:
1769      - added this routine to TAF list
1770      - needed to make some common blocks global and additional storing
1771        along the same lines as exf package (checkpoint_lev?_directives.h)
1772    o exf:
1773      updated external forcing package
1774      - bug fixes carried over from ecco-branch
1775        (missing OBCS_OPTIONS.h in two routines)
1776      - enable easy to use "no forcing".
1777      - added exf I/O for atmospheric loading
1778      - added exf I/O for runoff data
1779      - transfered scaling between exf <-> MITgcm to exf namelist
1780    o Adding new verification experiment global_with_exf.
1781      This verification experiment is almost identical to the
1782      global_ocean.90x40x15 experiment, except that it uses
1783      the exf (and cal) package instead of the
1784      external_fields_load routine (cf README file).
1785    
1786    checkpoint46m_post
1787    o modified testscript to return -- when there are no lines of "%MON" output
1788    o added new flag "quasiHydrostatic" for QH mode
1789      and new routine quasihydrostaticterms()
1790    o added 2*Omega*Cos(phi)*W to u equations (non-hydrostatic Coriolis term)
1791      New routine: mom_u_coriolis_nh()
1792  o fixed sign of non-hydrostatic metric terms in u and v equations.  o fixed sign of non-hydrostatic metric terms in u and v equations.
1793    Depend on correct sign of gravitySign.    Depend on correct sign of gravitySign.
1794  o added work.pc* to .cvsignore in aim directories using ifc  o added work.pc* to .cvsignore in aim directories using ifc

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