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revision 1.808 by jmc, Thu May 3 22:57:27 2007 UTC revision 1.1137 by jmc, Tue Jun 30 00:02:32 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exch2 (exch2_rxN_cube*):
8       remove last BARRIER (no need to synchronise after getting data from shared
9       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
10    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
11      and generate new output (for the 2 tests) using default rotationPeriod.
12    o pkg/exch2:
13      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
14        (was already the case with AUTODIFF_EXCH2 defined)
15      - add bj in exch2 arrays and S/R.
16      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
17        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
18    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
19      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
20        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
21      - verification experiment natl_box.longstep
22    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
23      allow different versions of ifort (8 or 9) and different versions
24       of mpi (mpich or mpich2) to be used with the same optfile.
25      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
26       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
27    o pkg/seaice:
28      fix previous modif (3-level field removed) for old-pickup reading
29    
30    checkpoint61r
31    o pkg/seaice:
32     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
33      1. introduce fields for time step (N-1)
34      2. do not use levels 2 and 3 anymore (but keep them)
35      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
36         includes changes to pkg/thsice/thsice_get_velocity.F,
37         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
38         pkg/obcs/obcs_apply_uvice.F.
39     - completely remove code for leap-frog time stepping for second order
40       advection
41     - adjusted adjoint accordingly;
42       gradient checks have improved by an order of magnitude!
43    
44    checkpoint61q
45    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
46     - the boundary conditions along open boundaries are unclear, because the
47       associated masks are set to zero and are thus treated as closed when
48       applying the slip-boundary conditions.
49     - move initialisation of grid variables from seaice_init_varia to _fixed
50    o adding doc/diags_changes.txt
51    o model/src:
52      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
53       to avoid "_diags" naming if no relation to pkg/diagnostics.
54      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
55       file and only call PLOT_FIELD_XYZ if debugMode=T.
56      remove few PLOT_FIELD_XY calls outside initialisation.
57      remove few unnecessary BARRIER.
58    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
59      of salt_plume package in Southern Ocean
60    o pkg/thsice:
61     - fix hOceMxL in overlap (needed for sea-ice advection);
62       update output of experiment global_ocean.cs32x15.icedyn.
63    o pkg/seaice:
64     - make the (placeholder-)tracer IceAge a little more meaningful
65      by avoiding ridging of age due to convergent ice flow
66     - add diagnostics for surface temperature, atmospheric and oceanic
67       heat flux, and atmospheric and oceanic ice growth
68    
69    checkpoint61p
70    o eesupp (global_max & global_sum):
71     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
72     - remove starting & endding barrier (no longer needed)
73    o pkg/mdsio, writelocal:
74       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
75       (remove the STOP): uses shared buffer IO to store data from all threads
76       and then let master-thread write nThreads tiles.
77    o pkg/mdsio (read/write field):
78     - tiled IO done in 1 piece (all levels at a time);
79     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
80     - multi-threaded: allow to read/write local (non-shared) array
81       (was already working with singleCpuIO ; now works also without);
82       => no longer needs barrier call after reading a file (added inside
83       mds_read/write field).
84     - move barrier calls outside gather/scatter_2d to mds_read/write_field
85    o pkg/obcs/exf
86      - exf_getffieldrec.F: add a few ". _d 0" and
87                            add code to catch the case fldperiod = 0.  
88      - obcs_precribe_read.F: change if statements so that they match
89                              the variable type (_RL)
90      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
91        exf_iprec) as part of namelist EXF_NML_01
92    o pkg/mdsio:
93      - read/write tiled (local) files: read/write 1-level tile chunk at a time
94        (instead of segment of length sNx); expected to speed up tiled IO.
95    o pkg/exch2:
96      - take buffer copy from/to array out of S/R exch2_send/recv into new
97        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
98        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
99      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
100      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
101        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
102        including Topology header file (and common blocks).
103      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
104        remove 2nd exch call in exch2_s3d_rx (no longer needed).
105      - document S/R arg. list (+ update some comments)
106    o pkg/seaice:
107      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
108        temperature and humidity over sea ice based on climatological values.
109      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
110        of LSR (this change is expected to change the results slightly because now
111        it uses slightly difference moduli from the second last LSR solution, but
112        that is more consistent with the stress computations; this part of the code
113        is not tested in the verification experiments)
114      - fix diagnostics for flux of ice in case of B-grid
115      - turn strain rates eij and press into global fields within global
116        common block in SEAICE.h for more straighforward diagnostics
117      - fix diagnostics for principal stress components, press, zeta, eta
118        to give something meaning full
119    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
120      new output (all 4 tests) using default rotationPeriod.
121    o pkg KPP:
122      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
123      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
124        and normal grid from 1 to Nr)
125    o Fix computations of L4rdt in mom_calc_visc.F
126    o eesupp:
127      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
128      should be called before a "stop" if we know that all process are going
129      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
130    
131    checkpoint61o
132    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
133    o model/src/ini_curvilinear_grid.F:
134       compute angleSin/CosC when they are not read from a file
135    o pkg/seaice:
136       add pseudo time stepping for LSOR
137    o pkg/exch2:
138       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
139    o pkg/seaice:
140       Adding separate sea ice albedo, drag coefficients, and HO in Southern
141       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
142    o SingleCpuIO:
143       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
144    o pkg/seaice:
145       put exchanged variable in (local) common block for MPI+Multi-Threads
146       to work (necessary with exch1, and for now with exch2 too).
147    o verification: to get more experiments tested with mpi, mth and mpi+mth,
148      change tiling of:
149       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
150       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
151      update output of exp:
152       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
153       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
154      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
155                       (note: output.txt generated on faulks using only 1 tile)
156    o eesupp & mdsio (SingleCpuIO):
157     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
158       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
159       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
160     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
161     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
162       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
163    o pkg/exch2:
164     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
165       read parameter file "data.exch2" if it exists; otherwise try default regular
166       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
167     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
168       with new code (not to be used, just as a backup solution).
169     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
170       in utils/exch2/input.
171    
172    checkpoint61n
173    o eesupp & mdsio (SingleCpuIO):
174      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
175        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
176        receive real*4 array (instead of real*8) to read/write 32.bit files.
177        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
178         and remove new mapping S/R)
179    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
180      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
181        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
182        when using exch2. Add S/R to map global io-buffer to global model array.
183      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
184    
185    checkpoint61m
186    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
187      and add 3 other S/R for other types (R4,R8,RS).
188      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
189    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
190     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
191     - reduce number of macro definitions (keep only those which are used);
192       can always call directly the corrresponding S/R if needed.
193     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
194       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
195     Fixed wrong type of arg in:
196       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
197       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
198     To fix: global_sum of var in common block is wrong (multi-threaded) in:
199       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
200     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
201    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
202      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
203    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
204    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
205      edges are closed (zero depth); might happen with "blank tiles";
206      for now, disabled if using OBCS.
207    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
208      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
209    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
210      to reduce length of 1.D array print in STDOUT.
211    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
212      + use 48 tiles (16x8): this will allow to test "blank tiles".
213    o start to test MPI + multi-threaded (change testreport to skip tests
214      where number of tiles do not match).
215    o genmake2: add option "-omp" to turn on Open-MP ;
216      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
217    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
218      and keep the original tile numbering. Note: compatible with old
219      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
220    
221    checkpoint61l
222    o Overlaps had been forgotten in calculating ijk keys : fixed
223    o fix cyrus makedepend for gcc 4.4
224    o experiment fizhi-cs-aqualev20:
225      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
226      and generate new output. Note: new output is much closer to the old
227      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
228      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
229    o pkg/fizhi:
230     - change to avoid indices going deliberately over array-bounds
231     - remove unnecessary MPI stuff
232     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
233     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
234       does not go over array-bounds and therefore returns reliable output.
235     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
236       this S/R has 4 output arguments, which are used inside "get_alarm";
237       when it is called with the same variable "ndum" in place of several
238       output arguments, this produces weird side effect inside "get_alarm"
239      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
240       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
241       address) and produces error.
242    o tools/gemake2: (March 27-29 2009)
243      with option "-mpi": link *_mpi files from "MODS" dir (this is what
244      testreport does).
245    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
246    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
247       update lab_sea.lsr & lab_sea.salt_plume results
248    o pkg/seaice:
249      Major overhaul of the LSOR solver: change discretization from original
250      finite differences to finite volume. The old routine is still in the
251      file seaice_lsr.F and can be turned on with the CPP-flag
252      SEAICE_OLD_AND_BAD_DISCRETIZATION
253      Along with this change, the discretization of the strain rates is changed.
254      The same flag turns on the old discretization in seaice_calc_strainrates.F
255      All verification experiments with seaice are affected (except for
256      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
257      results by setting the above flag.
258      Further changes involve changes in defaults:
259      - ALLOW_FLOODING is defined and turned on by default
260      - SEAICEadvSnow = .true. is now the default
261      - SEAICEadvSalt = .true. is now the default
262      - SEAICEadvAge  = .true. is now the default
263      - SEAICE_clipVelocities  = .false. is now the default
264                                         (as per J. Zhang's recommendation)
265      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
266        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
267      - seaice_growth: replace computation of UG by a simple copy from wspeed
268    
269    checkpoint61k
270    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
271      seaice_lsr: fixed a few metric terms,
272                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
273                  add more debugging diagnostics
274      seaice_evp: removed superfluous many metric terms of FV discretization
275                  of stress divergence
276                  affects lab_sea, lab_sea.hb87
277      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
278                  of stress divergence for non-evp solver
279                  (this part is not tested anywhere)
280      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
281                  they were effectively only half slip
282                  affects lab_sea.hb87
283      updated all relevant verification experiments (except lab_sea//output_adm.txt
284        which was left over, but fails at level 7 & 6)
285    
286    checkpoint61j
287    o pkg/seaice: turn a few hard wired parameters into run time parameters
288    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
289      time in seconds as promised by the usints in seaice_monitor and exf_monitor
290    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
291      that are not cubed-sphere grids
292    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
293    o pkg/ctrl:
294      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
295    o non-hydrostatic (calc_gw.F):
296      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
297      update output of exp. global_ocean.cs32x15.viscA4
298    o remove backward compatibility for thetaMin,phiMin
299      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
300    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
301      interpolated wind field not only for curvilineargrid=.true., but also
302      for a rotated grid (rotateGrid=.true.)
303    o pkg/exf: add capability to bypass interpolation for runoff
304      by setting yet another CPP-flag
305    o eesupp/src, B-grid exchange:
306      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
307    o autodiff
308      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
309      allows to switch to single-prec common blocks;
310      corresponding switch occurs in tamc.h, integer isbyte
311      TAF store directivs "byte" and "kind" seem equivalent;
312      Most tamc.h have been updated correspondingly.
313    
314    checkpoint61i
315    o autodiff:
316      fix autodiff_sore/_restore indices for obcs
317      (spotted by I. Hoteit, M. Mazloff)
318    o pkg/autodiff, pkg/ctrl:
319      Add flag to reduce all tapelev I/O to single-prec.
320      In data.ctrl set
321        doSinglePrecTapelev = .TRUE.
322    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
323      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
324    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
325      real fresh water flux (not yet)
326    o pkg/mdsio & rw:
327     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
328     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
329    o pkg/flt:
330     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
331       init_fixed & ini_varia.
332     - clean-up & simplify linear interpolation S/R:
333       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
334     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
335     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
336     - add vert. coordinate & horiz. indices to output files.
337     - change vertical position in initial condition, from index to depth [m].
338     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
339       (easier to get to a curvilinear grid) ; delX,delY no longer used.
340    o pkg/ggl90: a few modifications:
341     - fix bottom boundary condition, and interpolation of KappaE
342       near top and bottom
343     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
344     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
345     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
346    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
347      (maintain temporary backward compatibility, until next checkpoint)
348    
349    checkpoint61h
350    o pkg/diagnostics with "periodic averaging diagnostics":
351      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
352    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
353    o pkg/obcs: fix loop ranges for balancing code
354    o pkg/flt:
355     - improve criteria for finding which tile owns a float.
356     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
357    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
358      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
359      with ocean biogeo)
360    o pkg/flt:
361     - do some cleaning and fix the restart ;
362     - add output.txt in flt_example/results to get this pkg tested.
363    o genmake2: add an EXTENDED_SRC option and flag.
364       for now, cannot be turned on on command line (only through genmake_local)
365    o pkg/mdsio: read/write vector:
366     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
367     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
368       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
369     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
370      (drop to 4 digits matching for grad). But this test does not look very
371      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
372    
373    checkpoint61g
374    o pkg/flt:
375      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
376       + make OPTIONS file more standard.
377      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
378      - fix _BYTESWAPIO CPP-Flag
379      - standard reading of file-parameter "data.flt"
380      - fix argument list of S/R FLT_RESTART
381      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
382    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
383    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
384      a still unfixed compiler/optimization bug
385    
386    checkpoint61f
387    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
388      update results of global_ocean.cs32x15.icedyn test.
389    o move getcon.F from model/src to pkg/fizhi.
390    o pkg/exf: add parameter for extrapolation of temp up to the surface
391       and option to prevent negative evap (in bulk_largeyeager04 only).
392    o Prather Advection scheme: fix tracer conservation for divergent flow
393      (e.g., when using NonLin Free-Surface).
394    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
395    o gmredi (Visbeck-variable-K):
396     - add more parameters to Visbeck-variable-K.
397     - use a 5 points average for dSigmaR in Visbeck-K calculation
398       (more "homogenous": same stencil and same weights as in dSigmaH)
399     - update output of ideal_2D_oce experiment.
400    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
401      (#undef REAL4_IS_SLOW)
402     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
403       coordinate variable
404     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
405       (surface forcing fields), removes some of the functionality
406     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
407     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
408       probably not all: copy _RS surface flux fields to RL field before
409       calling DIAGNOSTICS_FILL
410     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
411       real*4 (CALL EXCH_*_RS) versions.
412     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
413       (generate new output).
414    
415    checkpoint61e
416    o gmredi (Visbeck-variable-K):
417      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
418      - change computation of Visbeck-K where Slope > Smax :        
419        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
420        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
421    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
422      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
423    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
424    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
425      does not become too large (to avoid precision problems in implicit-diffusion
426      solver); update ideal_2D_oce output.
427    o pkg ggl90:
428      - in ggl90_cal.F: compute only one set of visc/diff, used to
429        step forward TKE/T/S/momentum
430      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
431        have Prandlt =1)
432    o gmredi (fm07):
433      - add lower limit on Transition layer thickness + lower limit on 1/lambda
434      - allow to set few more params from data.gmredi
435    o pkg ggl90:
436          - add missing sqrt(2) factor in computation of mixing length
437            scale in ggl90_calc.F
438            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
439    
440    checkpoint61d
441    o adjoint modifs
442      - adapt to new field rhoInSitu
443      - allow to revert from StoreDynVars2D, StoreDynVars3D
444        to individual fields
445        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
446    o store 3-D (in-situ) density in commom block (DYNVARS.h)
447     - save 1 rho computation.
448     - no longer modify T & S inland when using down_slope pkg.
449    o gad_som : allow to switch to SOM advection for T & S without corresponding
450      pickup files (using new S/R: MDS_CHECK4FILE).
451    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
452      (for useSingleCpuIO to work in multi-threaded)
453    o pkg/shelfice:
454     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
455       with SHELFICEtopoFile in data.shelfice
456     - move code for reading ice shelf topography and modifying hFacC into separate
457       subroutines of the shelfice package
458     - separate initialisation of "fixed" and "variable" variables
459     - kTopC is not (yet) replaced by kSurfC, although this is possible
460    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
461    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
462      and rename:
463      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
464      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
465    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
466    
467    checkpoint61c
468    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
469      to add mass source/sink of fluid in the interior (3-D generalisation
470      of oceanic real-fresh water flux).
471    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
472    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
473    o new pkg: down_slope
474      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
475      - presently, modify T & S inland (dwnslp_calc_rho.F).
476        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
477      - implementation for ocean in P-coords not tested.
478      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
479    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
480      (to facilitate conversion of oceanic pkg to p-coordinate).
481    o change FIND_RHO to FIND_RHO_2D :
482      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
483    o new pkg: cheapaml
484    
485    checkpoint61b
486    o exch2:
487      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
488      - no longer depend on the order sequence (N,S,E,W).
489      - 3rd exchange no longer needed (tested with 24 tiles).
490      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
491      - exch_UV_A-grid readily available (but not yet tested).
492      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
493      (both are no longer needed) in exch_uv: no effect in forward run; but
494       get truncation error differences with adjoint exch.
495    o exch2:
496     - change index-bounds storage (moved from target to local tile,
497       more intuitive this way) ; rename/remove some variables.
498     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
499    
500    checkpoint61a
501    o exch2/matlab-topology-generator:
502      fix bug in index bounds for N-S internal exchange (hard to tell if this
503      had any effect on the solution).
504    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
505      is exceeded
506    o testreport: modify syntax of awk, so that it works also with
507      awk, and not only with nawk and gawk
508    
509    checkpoint61
510    o autodiff
511      Change default for TAF usage by removing argument '-nonew_arg'
512      This changes TAF subroutine argument list (ordering of active var.)
513      Omission of this flag leads to incompatibility w.r.t. TAMC
514      To restore TAMC-compatibility, need following modifs:
515      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
516      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
517      Tested TAF version is 1.9.22
518      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
519    
520    checkpoint60
521    --->>> This is the last checkpoint for which generating the adjoint
522    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
523    --->>> by default.
524    --->>> Future checkpoints will ommit this flag by default.
525    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
526    o pkg/grdchk: Add gradient check to etan0 perturbations.
527    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
528    o pkg/autodiff: more flexibility in zeroadj.
529      model/src: modifying do_oceanic_phys.F accordingly.
530    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
531    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
532      special setup of gmredi for which the adjoint is stable
533      enough for parameter optimization.
534    o bridging the gap between eddy stress and GM.
535      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
536          along with a change in CPP option (now ALLOW_EDDYPSI).
537      -> when using GM w/ GM_AdvForm:
538          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
539          is applied either in the tracer Eq. or in momentum Eq.
540          depending on data.gmredi (intro. GM_InMomAsStress).
541      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
542      The key modifications are in model/src/taueddy_external_forcing.F
543      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
544    
545    checkpoint59r
546    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
547      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
548      fix option to read coriolis(@ cell-corner) from files with CS-grid.
549    o pkg/mnc: add some attributes to standard 1D-coordinate variables
550    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
551      mass points, when using mnc for output
552      - add runtime parameter (missing_value, missing_value_int) to override
553        default (which is the value of getcon('UNDEF'))
554    o pkg/mnc: prepare mnc for the actual use of missing values with the
555      diagnostics package: small fix in mnc_cw_readwrite.template and more
556      initialisation of never used fields
557      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
558      versions
559    o pkg/thsice/thsice_ini_vars.F added default initial values so that
560      thermodynamics sea ice solver does not blow up when some initial fields
561      are missing.
562    o move from external_forcing_surf.F to ini_forcing.F
563      the p-coord. hack consisting in using pLoad to set phi0surf ;
564      update output of tutorial_global_oce_in_p (affected @ truncation level).
565    o Freshen up a bit hs94.1x64x5, notably:
566      remove rotationPeriod and tRef=5*0. (adjoint only), and add
567      exactConserv=.TRUE.
568    o pkg/generic_advdiff:
569      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
570      applies to files where Temperature & Salinity 2nd Order moments are used.
571    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
572      this uses a dynamically allocated internal state data structure
573      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
574      and requires a fortran 90 compiler
575    
576    checkpoint59q
577    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
578       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
579    o Refresh tutorial_global_oce_biogeo, notably:
580      - change bathymetry (put back seamounts in ACC, use hFacs)
581      - change EOS (POLY3 --> JMD95Z)
582      - use Bryan-Lewis vertical diffusivity
583      - use multidimensional advection
584      - remove old virtual virtual in dic pkg, now done through ptracer pkg
585      - change a couple of parameters in dic pkg
586    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
587    o pkg/obcs: change default to OBCSfixTopo = .true.,
588      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
589      - replace "debugMode" with "debugLevel .GE. debLevB"
590    o implementation of TAF directives for gchem,cfc,dic
591    o remove "exp5" (replaced by tutorial_deep_convection).
592    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
593      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
594      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
595      --> changes results in exp4, seaice_obcs
596    o tutorial_deep_convection :
597      update the set-up and increase resolution and domain size ; start
598      from pseudo initial conditions = output at t=120mn in order to see
599      something happening when running testreport.
600    o pkg/seaice: add os7mp as an advection scheme
601                  add check for advection schemes
602                  add a flag for restoring T and S underneath sea ice
603    o pkg/my82: add netcdf-support and diagnostics
604    o thsice pkg:
605      - Now hsMax limits snow height by turning it into ice following
606        flooding scheme (and now conserving energy)
607      - Slight rewriting of the formula in thsice_calc_thick.F
608      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
609      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
610    
611    checkpoint59p
612    o gchem / dic / cfc :
613      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
614      - add new parameter files: "data.dic" & "data.cfc" ;
615      - various re-arrangement in initialisation & header file ;
616      - fix tutorial_global_oce_biogeo for multi-threaded test.
617    o pkg/dic: test for "pickup_dic" file when restarting ;
618      if no pickup-file, can restart with a re-initialised pH (same as it did
619      before) providing pickupStrictlyMatch is set to False.
620    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
621      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
622    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
623      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
624    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
625     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
626       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
627    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
628       scheme to use for vorticty-term ;
629     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
630       (with default selectVortScheme, return to original discretisation)
631     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
632    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
633    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
634      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
635      also fix diagnostics VISCAHW & VISCA4W.
636    
637    checkpoint59o
638    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
639    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
640      move a few statemens out the main loop into separate loops
641    o pkg/shelfice:
642      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
643        (kg/m^2/s), does not break tests, because in verification/isomip,
644        rhoConstFresh=rhoConst (by accident)
645      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
646      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
647        new file model/src/seawater.F, so that they are available for all pkgs.
648      - convert potential temperature into in-situ temperature. This changes the
649        isomip tests => update tests
650    o add a flag writePickupAtEnd (default=true) to be able to suppress
651      writing a pickup at the last timestep
652    o tools/mpack-1.6 :
653      - disable automake (not working) and autoconf (not needed).
654      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
655        also cleaner with much less compilation warnings.
656    o pkg/profiles:
657      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
658      (for "less than 32 characters name" compiler requirement)
659    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
660      conditions that have a different sampling frequency than S/T/U/V obcs
661    o pkg/diagnostics (stats-diags):
662      - fix global Min/Max in case 1 processor get only empty tiles
663    o genmake2: replace (4 times)
664         make genmake_tc_1.o >> genmake_warnings 2>&1
665      with
666         COMM="$CC $CFLAGS -c genmake_tc_1.c"
667         echo $COMM >> genmake_warnings
668         $COMM >> genmake_warnings 2>&1
669      to make genmake2 always see the value of CC as specified in the optfile.
670    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
671      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
672      - modify verification advect_cs test to test SOM-advection on CS-grid.
673    o pkg/ctrl:
674      - Rewrite of ctrl_map_ini_ecco.F,
675        introducing a generic routine (ctrl_map_ini_gen.F).
676      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
677    
678    checkpoint59n
679    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
680      number in dedicate array "hdiag":
681      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
682        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
683      - many small changes (integer format) for large number of diagnostics
684      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
685        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
686    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
687      usingSphericalGrid, this allows to define the rotated grid coordinates
688      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
689      geographical coordinates according to the inverse of the rotation defined
690      by the Euler angles, so that Coriolis parameter and online-interpolation by
691      exf works with the geographical coordinates on XC/YC/XG/YG.
692      Naturally, this feature does not work with all packages, so some
693      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
694      profiles), because there the coordinates are assumed to be regular
695      spherical grid coordinates.
696    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
697      - introduce isopycnal diffusion coefficient control.
698    o tools/adjoint_options:
699      - additional control vector components.
700    o pkg/mnc: have mnc create marginally meaning full coordinate variables
701      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
702    o pkg/mypackage:
703      - add example of read/write pickup for state-var ;
704      - add entry points to the main code for state-vars diags & write-pickup.
705    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
706      transitions for useExfYearlyFields
707      - add new subroutine that determines the file to read from for
708        use*YearlyFields = .TRUE. and .FALSE.
709      - add a verification experiment to global_with_exf that tests
710        useExfYearlyFields with USE_EXF_INTERPOLATION defined
711    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
712      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
713      subroutines (which could be generated from a template, because they are
714      almost identical), for now they are included in obcs_prescribe_read.F for
715      simplicity
716    o pkg/exf:
717      - add a little more diagnostic to exf_interp_read (in analogy to
718        mds_read_field, can be turned off with debugLevel < debugLevA=1)
719      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
720        ugly but fast by unrolling short inner loops, inserting a unroll=8
721        directive in routine lagran, and splitting a loop and making do while the
722        outermost loop (the latter requires the intoduction of index arrays)
723    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
724    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
725      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
726    o verification/seaice_obcs: updated for restart test and latest options
727    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
728      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
729      for now this is only available for the C-grid code and also within
730      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
731    
732    checkpoint59m
733    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
734      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
735    o gad_som : fix flux output (& diagnostics) to have same units as other  
736      advection scheme fluxes (was previously multiplied by deltaT).  
737    o added verification/seaice_obcs both to test seaice open boundaries
738      and to provide an example matlab scrpt for generating them
739    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
740    o pkg/salt_plume: clean up salt_plume_frac.F to
741      remove redundancy in PlumeMethod 1 and 4
742    o pkg/kpp: added saltplume diagnostics
743    o pkg/obcs and pkg/seaice:
744      - do not set uice and vice to zero when OB*icefile are unspecified
745      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
746      - moved seaice tracer obcs after call to seaice_growth
747    o pkg/salt_plume: added various options for salt plume depth
748      criterion and for vertical distribution of the salt
749    
750    checkpoint59l
751    o pkg/ptracers: new version of ptracers pickup:
752      read meta file and write only fields which are needed to restart.
753      ( same logic as main pickup file ; also using pickupStrictlyMatch )
754    o pkg/seaice:
755      - add timescale for melting due to warm mixed layer as a means of
756        setting SEAICE_availHeatFrac more conveniently
757      - add a CPP-flag/runtime parameter check for flooding algorithm
758      - reformulated availHeat in seaice_growth.F to be independent of AREA
759    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
760      unit changes
761    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
762    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
763      SX vector computer.
764    o pkg/seaice:
765      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
766        seaice forcing fields can now be read only through pkg/exf
767      - removed some unused halos
768    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
769    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
770      or U/VICE from U/VWIND before computing U/VSTRESS
771    
772    checkpoint59k
773    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
774      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
775    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
776      all experiments pass when compile with un-initialised var. checking option.
777    o added pkg/salt_plume
778    o script to test restart (for now, in MITgcm_contrib/jmc_script)
779    o pkg/seaice: new read/write pickup version.
780      read meta file and write only fields which are needed to restart.
781      ( same logic as main pickup file ; also using pickupStrictlyMatch )
782    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
783    o lab_sea.hb87: modify the domain & update output.hb87.txt :
784      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
785      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
786      process. Fixed here by closing the domain at the Northern boundary.
787    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
788    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
789      a set of consecutive levels in/from a 3-D array.
790    o pkg/ptracers:
791      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
792      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
793    
794    checkpoint59j
795    o in pkgs: dic, obcs, offline, rbcs:
796      standard way to compute coeff. for time interpolation between 2 time reccords
797      which retains full precision (& make results less dependent on compiler).
798      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
799    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
800      packages instead of reading ice cover and wind speed separately
801    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
802     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
803      to allow to compile customized code before the update)
804    o cleaning-up:
805      - fix CPP instruction syntax in pkg/obcs
806      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
807        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
808      - fix some threads issue in IO parts.
809    o pkg/dic:
810      - add tons of "_d 0" (--> much better testreports !)
811       and then update outputs of tutorial_global_oce_biogeo
812    o pkg/mom_fluxform:
813      add a special version of momentum advection intended to conserve momentum
814      next to a bathymetry step or a coastline edge. (default = off = #undef)
815    o new read/write pickup version:
816      - for now, only implemented for main (mdsio) pickup file.
817      - write out only what is needed to restart; merge pickup_nh , pickup_ph
818        and main pickup together.
819      - read meta file; read only what is needed to restart; stop if a field
820        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
821        if it make sense (even if the restart is not perfect).
822      - if no meta file, assume that pickup to read corresponds exactly to
823        a pickup that would currently be written.
824      - read pickup written in the old format (until checkpoint59i) if it
825        recognizes an old meta file (no field-list).
826      - add a meta file in exp. which starts from a pickup: 2 cases:
827        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
828         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
829        b) a meta file describing the content of the associated pickup file
830         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
831    o pkg/mdsio & pkg/rw:
832      - new routine to read a meta file ; new set of routine to read
833        Multiple-fields file (with meta file).
834    o added open boundary conditions capability for seaice
835        HSNOW, HSALT, UICE, and VICE
836    
837    checkpoint59i
838    o adjoint:
839      * fix multiDimAdvection adjoint
840        (partial recomputation problem by TAF for fVerT(:,:,kDown)
841        and comlev1 size definition (maxpass vs. max. number of tracers)
842      * verification/global_ocean.90x45x15 adjoint now tests
843        NLFS and multiDimAdvection using DST3 (=30)
844      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
845    o pkg/kpp: add "_d 0" to real constant (if missing);
846      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
847      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
848    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
849      for internal parameters related to restart process (formerly from PARAMS.h)
850      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
851    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
852      as argument. (only atm2d & obcs write_pickup have not yet been updated)
853    o pkg/monitor:
854      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
855      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
856      - account for deep Atmosphere factor and density factor (anelastic)
857    o added open boundary conditions capability for seaice HEFF and AREA
858    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
859      thermodynamics
860      - requires a little reorganization, which affects the testreport results
861        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
862        so that now the conservative form is tested
863      - add a few comments
864    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
865    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
866    o add new diagnostics to seaice: advective, diffusive fluxes (only for
867      multidim-advection, for scheme 2 they are not filled) and transports,
868      thermodynamic growth rates
869    o change units of EmPmR (inside the code, + within coupling interface)
870      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
871      Affects results @ truncation level (cg2d match) and update output of
872       experiments: lab_sea(6), global_ocean.90x40x15(10),
873      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
874      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
875      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
876      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
877    
878    checkpoint59h
879    o pkg/exf:
880      - improve vectorization by moving if-statement out of loops in
881        exf_mapfields, exf_radiation
882      - exf_bulkformulae.F: introduce 2D fields and vectorize code
883    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
884    o testreport:
885      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
886        monitor & update offline_exf_seaice exp. output.
887      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
888    o pkg/seaice:
889      - bug fix in the evp solver: boundary conditions were affected be
890        masking of zMax/zMin (changes results)
891      - minor bug fix in boundary conditions in seaice_calc_strainrates
892        (changes results for no_slip)
893      - seaice_lsr.F: make interpolation of eta dependent on boundaries
894      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
895      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
896        stress formulation and no-slip boundary conditions
897    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
898      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
899    o pkg/seaice: a first HSALT time stepping equation has been checked in
900    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
901      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
902      without requiring DO-IF statements
903    o pkg/thsice:
904      use continuous power-law function for partition of energy between lateral
905      melting/freezing and thinning/thickening ; old code using step function
906      still available with #undef THSICE_FRACEN_POWERLAW
907      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
908    o testreport: change AD testing : check against results/output_adm.txt
909      using same scripts as for forward test.
910    
911    checkpoint59g
912    o adjoint testing: in preparation for changing testreport:
913      - output format: cost and grad written on separated lines
914      - ad output results in directory "results" (instead of "results_ad")
915    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
916    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
917    o pkg/ecco: allow user defined cost function contributions
918    o testreport:
919      Allow to choose (per experiment) the list of tested output variables
920       and the main variable (used to issue a pass/FAIL ) ;
921      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
922      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
923      Also modify printing of summary:
924       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
925       b) echo the list of tested variables in the individual summary.txt of
926          each experiment.
927    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
928      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
929      (but still depend on the tile decompostion of the domain).
930    o pkg/seaice: change a discretization detail to make the B-grid code
931      "more symmetric". This change is likely to remove all "ridges/leads" that
932      where quasi-aligned with the grid in B-grid solutions. It may also be
933      the solution to the stress coupling issues with the B-grid.
934    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
935      remove .cvsignore from input dir. (since testreport no longer run here).
936    o pkg/thsice:
937     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
938     - fix reshaping of sea-ice just after advection:
939       melt all the ice only if ice-volume is too small.
940     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
941       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
942     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
943    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
944      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
945    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
946      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
947      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
948      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
949      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
950      -> update output.txt
951    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
952     this affects truncation error: -> update output.txt of exp:
953      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
954      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
955    
956    checkpoint59f
957    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
958    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
959      a bounded range (in forward mode)
960    o pkg/ecco, ctrl, autodiff and mom_common:
961     internal parameter controls, completements of implementations
962    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
963    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
964      (not seem any difference in testing results).
965    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
966       at face corners.
967    o pkg/generic_advdiff:
968     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
969      loop range indices for computing vertical advection tendency
970      and do the calculation in the interior only (no overlap) ;
971      for now, only implemented for SOM advection (to save CPU time).
972     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
973    o exch2 adjoint
974      First set of changes:
975      - add exch2 hand-written adjoint templates
976      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
977        This will require cleanup in pkg/autodiff/*.F
978        (changed routines currently kept separate in verif. code/)
979      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
980        that used to hide exch2 or cubed-sphere specific code
981        (commented via 'cph-exch2')
982    o pkg/seaice
983      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
984    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
985       output of global_ocean.cs32x15.thsice .
986    
987    checkpoint59e
988    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
989      for B-grid vector (not yet tested) and C-grid vector (<- only used
990      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
991    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
992      (#ifdef ALLOW_SALT_PLUME)
993    o gather_2d/scatter_2d: removed halo regions
994    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
995      scheme and the corresponding test case (under front_relax dir). For now,
996      only available with Skew-flux form and not yet tested in realistic set-up.
997      adjoint: store directives updated, but gradient checks deteriorated,
998      so maybe GM/Redi adjoint is now broken.
999    o seaice adjoint
1000      * add AREA, HEFF, HSNOW as control variable
1001        (should not change lab_sea results)
1002      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1003    o pkg/seaice:
1004      * added computation of saltFlux in seaice_growth;
1005        For time being, sea ice salinity is assumed constant
1006        contribution of snow flooding to freshening of sea ice is neglected.
1007        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1008        defaults to 0.0 in order to maintain backward compatibility.
1009        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1010      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1011      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1012        heat content used to melt or grow ice
1013      * commented out cap of HICE: it helps keep ice thinner
1014      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1015      * applied OBCS T/S mask to HEFFM sea ice mask
1016    
1017    checkpoint59d
1018    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1019     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1020     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1021    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1022     and change default value of parameter "GM_Small_Number";
1023     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1024       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1025       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1026    o pkg/ecco: cost function when applying pkg/smooth to controls
1027    o pkg/ctrl: add forcingPrecond run time parameter
1028    o pkg/seaice:
1029     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1030     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1031       changes verification/lab_sea
1032     - rearrange implicit part of u-equation in LSR solver to make it easier to
1033       read, understand, and debug. This causes changes at the truncation level.
1034     - fix (serious) bug in the boundary conditions (sign error in the implicit
1035       part) of the LSR solver. Changes all LSR results.
1036     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1037       is initilized with small values - does not change lab_sea results.
1038     - added HsnowFile initialization capability
1039    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1040     initialization of pkg/smooth and application to control vector
1041    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1042    o dependencies: pkg/profiles requires pkg/cal
1043    o pkg/profiles:
1044     - added option ALLOW_PROFILES_GENERICGRID
1045         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1046         that interpolation information (grid points and coefficients) is provided
1047         within the netcdf input files.
1048         -> sample matlab scripts can be found in MITgcm_contrib/gael
1049         that allow you to prepare netcdf input files.
1050     - also modified: cleaner include statements, cleaner error print statements,
1051       cleaner stops when error, and more tests of the netcdf input files consistency.
1052    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1053    o pkg/seaice:
1054     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1055       requires a new routine: seaice_diagnostics_fill.F
1056     - make sure that seaice does not move if not forced (pressure replacement
1057       method, Hibler and Ip, 1995), changes results
1058     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1059     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1060       It is turned off by default (=-1.), because it changes the results.
1061     - make it possible to read AREA from a file, too.
1062    
1063    checkpoint59c
1064    o add S/R and diagnostics for oceanic mixed-layer depth
1065    o move GMRedi call after all vertical mixing schemes (including KPP)
1066    o pkg/thsice:
1067     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1068      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1069    o pkg/obcs:
1070     - bug fix for balance code
1071    o pkg/seaice:
1072      - allow values of SEAICE_elasticParm > 1
1073      - add new parameter SEAICE_evpTauRelax as an alternative
1074        to SEAICE_elasticParm
1075      - make lsr boundary conditions free slip (by default), changes result
1076      - add code for no slip boundary conditions for lsr
1077      - set minimum of zeta to zero (and not 4e8) (changes results)
1078      - add a cap on AREA after advecting AREA if seaice_growth is not called
1079    o change calculation of Visbeck K:
1080      - no longer depend on tapering scheme; instead, compute slope (limited
1081        by GM_maxSlope). this is equivalent to what was comuted before with
1082        clipping or linear tappering.
1083      - fix vertical averaging (wrong by 1/2 level)
1084      - leave the old version (but will not be maintained) within
1085        #ifdef OLD_VISBECK_CALC / #endif
1086      - update output of exp. ideal_2D_oce
1087    o change error catch in calc_r_star to improve vectorization
1088    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1089      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1090    o adjoint:
1091      Re-organized adjoint checkpointing according to Matt Mazloff
1092      (but with modifs/completions/cleanups)
1093      Storing is now bundled into large arrays to optimized I/O
1094      (and second step in cleanup of the_main_loop)
1095    
1096    checkpoint59b
1097    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1098      - export/import (between ocean & coupler) fields needed for ocean DIC.
1099    o pkg/seaice:
1100      - get rid of three more exchanges seaice_calc_viscosities (required
1101        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1102      - bug fix in seaice_ocean_stress (update of lab_sea required)
1103      - reduce loop boundaries to necessary minimum also in seaice_evp
1104      - go back to the old way of computing deltaC/Z as the adjoint likes that
1105        better
1106    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1107      passive tracer to an Age Tracer) + update output.txt
1108    o pkg/exf:
1109      - implement A-grid / C-grid selection for wind-stress input files.
1110      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1111      for now, in exf_bulk_largeyeager04.F only :
1112      - change implementation for case where windspeed + 2. components wind-stress
1113        are read-in. AND use rhoConstFresh to convert evap.
1114    o pkg/seaice:
1115      - use correct EXCH_UV for wind-forcing (on A-grid).
1116      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1117        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1118    o pkg/exf:
1119      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1120      EXF_INTERPOLATION:
1121      - merge global_with_exf/code version of exf_interp_read.F
1122        to the main code ;
1123      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1124        reading the file ; Important: This options needs to be defined to recover
1125        previous code.
1126        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1127      - no longer loose real*8 precision along the way when using exf_iprec=64.
1128    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1129      - change discretisation of evp-solver in order to avoid another exchange
1130        (changes lab_sea) and clean up a little
1131      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1132        help the adjoint (this also changes the results slightly)
1133      - add a few "_d 0" where they had been missing in seaice_evp.F
1134      - cleaning up: remove unused seaice_calc_rhs.F
1135    o pkg/exf: some cleaning-up:
1136      - change various "constants" into runtime parameters
1137      - cleaned-up Large&Yeager04 routine which should eventually
1138        replace exf_bulkformulae.F (changed names of S/R and CPP)
1139        and merged various ALLOW_ATM_WIND options
1140     only used with thsice pkg (in thsice_get_exf.F):
1141      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1142        which are used when useStabilityFct_overIce=TRUE (= the default)
1143      - change default values of ice & snow emissivity and scale downward LW
1144        by ice & snow emissivity.
1145    o pkg/thsice:
1146     fix few little problems, in thsice_calc_thickn.F:
1147      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1148      - melt only laterally if hIce < hThinIce (as the comments say)
1149      and in thsice_extend.F:
1150      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1151      - start to form ice as soon as the minimum ice-volume is reachable.
1152     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1153      and cpl_aim+ocn
1154  o pkg/kpp  o pkg/kpp
  - remove wrong (within bi,bj loops) EXCH calls.  
  - little cleaning (add argument myThid in last position, cvs header ...)  
1155   - move computation of surface related input fields to KPP into a new   - move computation of surface related input fields to KPP into a new
1156     subroutine kpp_forcing_surf.F     subroutine kpp_forcing_surf.F
1157     - remove wrong (within bi,bj loops) EXCH calls.
1158     - little cleaning (add argument myThid in last position, cvs header ...)
1159     - for now, fix conservation problem by exchanging KPPviscAz (may not
1160       be the best fix)
1161  o pkg/seaice  o pkg/seaice
1162   - check for inconsistent evp parameter/cpp-flag combination   - check for inconsistent evp parameter/cpp-flag combination
1163   - remove leftover errIO flat for obsolete name list error handling   - remove leftover errIO flat for obsolete name list error handling
1164    o OpenAD
1165     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1166    
1167  checkpoint59a  checkpoint59a
1168  o pkg/seaice: some parameter clarifications and a little bit of clean up  o pkg/seaice: some parameter clarifications and a little bit of clean up
# Line 31  o in FFIELDS.h: Line 1182  o in FFIELDS.h:
1182       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
1183  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
1184  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
1185      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1186        are no longer updating the vertical diffusivity array
1187        (passed as argument) but are (re-) setting those arrays.
1188  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
1189    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
1190      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 1513  o add two new packages Line 2666  o add two new packages
2666    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2667    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2668      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2669      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2670  o add offline package  o add offline package
2671  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2672    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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