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revision 1.845 by jmc, Thu Jun 21 18:34:24 2007 UTC revision 1.1157 by dfer, Thu Sep 17 17:01:04 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/mom_common:
8      Move computation of length scales to mom_init_fixed.F (avoid recomputation
9      at each time-steps*levels).
10    o pkg/layers:
11      Created a new package for computing volume fluxes in temperature or
12      [not yet implemented] density layers, e.g. for calculating residual
13      overturning circulations.
14    o pkg/diagnostics:
15      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
16    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
17    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
18      To avoid mixing type (RS/RL) of input/output array argument,
19      replace single mixed-type array with a pair from each type (RS/RL).
20    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
21      is now implemented for all pkgs (previously only done for the main pickup)
22    
23    checkpoint61u
24    o pkg/obcs:
25      - change OB?eta from _RS to _RL and put them into a separate commen block
26      - add code to read OB?eta from a file via obcs_prescribe_read: the code
27        compiles and does not destroy any other experiments, the data is read
28        properly, but the code is not tested in actual applications
29    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
30      create a meaningful unit attribute for the time coordinate variable
31    o pkg/ebm: add plenty of missing "_d 0" ;
32       update results of experiment global_ocean_ebm (fwd + adjoint tests)
33      Notes: several pieces of code only works for (very) specific set up
34       (domain size, lat range, etc ...); should be documented & stop if one
35       of those assumptions is not meet.
36    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
37       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
38          and offline_exf_seaice (seaicetd + adjoint).
39    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
40       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
41        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
42    o few changes to pass when compiling with strick checking of arguments
43       across S/R (allow to find few bugs in S/R calls).
44    o pkg/seaice:
45     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
46       2d-fields, for slightly better performance
47    
48    checkpoint61t
49    o pkg/seaice:
50     - remove unused variables in seaice_evp
51     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
52    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
53       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
54       each processor opens a different file (a fix from Matt).
55    o cg2d:
56       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
57       this reduces number of EXCH calls by 2 when using exch2.
58       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
59       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
60    o pkg/thsice:
61       add code for Near Infra-Red albedo (from Jeff)
62       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
63    o ini_model_io:
64       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
65       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
66       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
67    
68    checkpoint61s
69    o pkg/exch2 (exch2_rxN_cube*):
70       remove last BARRIER (no need to synchronise after getting data from shared
71       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
72    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
73      and generate new output (for the 2 tests) using default rotationPeriod.
74    o pkg/exch2:
75      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
76        (was already the case with AUTODIFF_EXCH2 defined)
77      - add bj in exch2 arrays and S/R.
78      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
79        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
80    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
81      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
82        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
83      - verification experiment natl_box.longstep
84    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
85      allow different versions of ifort (8 or 9) and different versions
86       of mpi (mpich or mpich2) to be used with the same optfile.
87      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
88       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
89    o pkg/seaice:
90      fix previous modif (3-level field removed) for old-pickup reading
91    
92    checkpoint61r
93    o pkg/seaice:
94     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
95      1. introduce fields for time step (N-1)
96      2. do not use levels 2 and 3 anymore (but keep them)
97      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
98         includes changes to pkg/thsice/thsice_get_velocity.F,
99         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
100         pkg/obcs/obcs_apply_uvice.F.
101     - completely remove code for leap-frog time stepping for second order
102       advection
103     - adjusted adjoint accordingly;
104       gradient checks have improved by an order of magnitude!
105    
106    checkpoint61q
107    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
108     - the boundary conditions along open boundaries are unclear, because the
109       associated masks are set to zero and are thus treated as closed when
110       applying the slip-boundary conditions.
111     - move initialisation of grid variables from seaice_init_varia to _fixed
112    o adding doc/diags_changes.txt
113    o model/src:
114      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
115       to avoid "_diags" naming if no relation to pkg/diagnostics.
116      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
117       file and only call PLOT_FIELD_XYZ if debugMode=T.
118      remove few PLOT_FIELD_XY calls outside initialisation.
119      remove few unnecessary BARRIER.
120    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
121      of salt_plume package in Southern Ocean
122    o pkg/thsice:
123     - fix hOceMxL in overlap (needed for sea-ice advection);
124       update output of experiment global_ocean.cs32x15.icedyn.
125    o pkg/seaice:
126     - make the (placeholder-)tracer IceAge a little more meaningful
127      by avoiding ridging of age due to convergent ice flow
128     - add diagnostics for surface temperature, atmospheric and oceanic
129       heat flux, and atmospheric and oceanic ice growth
130    
131    checkpoint61p
132    o eesupp (global_max & global_sum):
133     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
134     - remove starting & endding barrier (no longer needed)
135    o pkg/mdsio, writelocal:
136       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
137       (remove the STOP): uses shared buffer IO to store data from all threads
138       and then let master-thread write nThreads tiles.
139    o pkg/mdsio (read/write field):
140     - tiled IO done in 1 piece (all levels at a time);
141     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
142     - multi-threaded: allow to read/write local (non-shared) array
143       (was already working with singleCpuIO ; now works also without);
144       => no longer needs barrier call after reading a file (added inside
145       mds_read/write field).
146     - move barrier calls outside gather/scatter_2d to mds_read/write_field
147    o pkg/obcs/exf
148      - exf_getffieldrec.F: add a few ". _d 0" and
149                            add code to catch the case fldperiod = 0.  
150      - obcs_precribe_read.F: change if statements so that they match
151                              the variable type (_RL)
152      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
153        exf_iprec) as part of namelist EXF_NML_01
154    o pkg/mdsio:
155      - read/write tiled (local) files: read/write 1-level tile chunk at a time
156        (instead of segment of length sNx); expected to speed up tiled IO.
157    o pkg/exch2:
158      - take buffer copy from/to array out of S/R exch2_send/recv into new
159        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
160        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
161      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
162      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
163        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
164        including Topology header file (and common blocks).
165      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
166        remove 2nd exch call in exch2_s3d_rx (no longer needed).
167      - document S/R arg. list (+ update some comments)
168    o pkg/seaice:
169      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
170        temperature and humidity over sea ice based on climatological values.
171      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
172        of LSR (this change is expected to change the results slightly because now
173        it uses slightly difference moduli from the second last LSR solution, but
174        that is more consistent with the stress computations; this part of the code
175        is not tested in the verification experiments)
176      - fix diagnostics for flux of ice in case of B-grid
177      - turn strain rates eij and press into global fields within global
178        common block in SEAICE.h for more straighforward diagnostics
179      - fix diagnostics for principal stress components, press, zeta, eta
180        to give something meaning full
181    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
182      new output (all 4 tests) using default rotationPeriod.
183    o pkg KPP:
184      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
185      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
186        and normal grid from 1 to Nr)
187    o Fix computations of L4rdt in mom_calc_visc.F
188    o eesupp:
189      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
190      should be called before a "stop" if we know that all process are going
191      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
192    
193    checkpoint61o
194    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
195    o model/src/ini_curvilinear_grid.F:
196       compute angleSin/CosC when they are not read from a file
197    o pkg/seaice:
198       add pseudo time stepping for LSOR
199    o pkg/exch2:
200       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
201    o pkg/seaice:
202       Adding separate sea ice albedo, drag coefficients, and HO in Southern
203       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
204    o SingleCpuIO:
205       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
206    o pkg/seaice:
207       put exchanged variable in (local) common block for MPI+Multi-Threads
208       to work (necessary with exch1, and for now with exch2 too).
209    o verification: to get more experiments tested with mpi, mth and mpi+mth,
210      change tiling of:
211       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
212       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
213      update output of exp:
214       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
215       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
216      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
217                       (note: output.txt generated on faulks using only 1 tile)
218    o eesupp & mdsio (SingleCpuIO):
219     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
220       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
221       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
222     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
223     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
224       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
225    o pkg/exch2:
226     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
227       read parameter file "data.exch2" if it exists; otherwise try default regular
228       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
229     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
230       with new code (not to be used, just as a backup solution).
231     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
232       in utils/exch2/input.
233    
234    checkpoint61n
235    o eesupp & mdsio (SingleCpuIO):
236      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
237        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
238        receive real*4 array (instead of real*8) to read/write 32.bit files.
239        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
240         and remove new mapping S/R)
241    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
242      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
243        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
244        when using exch2. Add S/R to map global io-buffer to global model array.
245      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
246    
247    checkpoint61m
248    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
249      and add 3 other S/R for other types (R4,R8,RS).
250      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
251    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
252     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
253     - reduce number of macro definitions (keep only those which are used);
254       can always call directly the corrresponding S/R if needed.
255     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
256       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
257     Fixed wrong type of arg in:
258       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
259       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
260     To fix: global_sum of var in common block is wrong (multi-threaded) in:
261       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
262     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
263    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
264      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
265    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
266    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
267      edges are closed (zero depth); might happen with "blank tiles";
268      for now, disabled if using OBCS.
269    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
270      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
271    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
272      to reduce length of 1.D array print in STDOUT.
273    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
274      + use 48 tiles (16x8): this will allow to test "blank tiles".
275    o start to test MPI + multi-threaded (change testreport to skip tests
276      where number of tiles do not match).
277    o genmake2: add option "-omp" to turn on Open-MP ;
278      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
279    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
280      and keep the original tile numbering. Note: compatible with old
281      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
282    
283    checkpoint61l
284    o Overlaps had been forgotten in calculating ijk keys : fixed
285    o fix cyrus makedepend for gcc 4.4
286    o experiment fizhi-cs-aqualev20:
287      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
288      and generate new output. Note: new output is much closer to the old
289      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
290      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
291    o pkg/fizhi:
292     - change to avoid indices going deliberately over array-bounds
293     - remove unnecessary MPI stuff
294     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
295     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
296       does not go over array-bounds and therefore returns reliable output.
297     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
298       this S/R has 4 output arguments, which are used inside "get_alarm";
299       when it is called with the same variable "ndum" in place of several
300       output arguments, this produces weird side effect inside "get_alarm"
301      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
302       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
303       address) and produces error.
304    o tools/gemake2: (March 27-29 2009)
305      with option "-mpi": link *_mpi files from "MODS" dir (this is what
306      testreport does).
307    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
308    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
309       update lab_sea.lsr & lab_sea.salt_plume results
310    o pkg/seaice:
311      Major overhaul of the LSOR solver: change discretization from original
312      finite differences to finite volume. The old routine is still in the
313      file seaice_lsr.F and can be turned on with the CPP-flag
314      SEAICE_OLD_AND_BAD_DISCRETIZATION
315      Along with this change, the discretization of the strain rates is changed.
316      The same flag turns on the old discretization in seaice_calc_strainrates.F
317      All verification experiments with seaice are affected (except for
318      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
319      results by setting the above flag.
320      Further changes involve changes in defaults:
321      - ALLOW_FLOODING is defined and turned on by default
322      - SEAICEadvSnow = .true. is now the default
323      - SEAICEadvSalt = .true. is now the default
324      - SEAICEadvAge  = .true. is now the default
325      - SEAICE_clipVelocities  = .false. is now the default
326                                         (as per J. Zhang's recommendation)
327      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
328        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
329      - seaice_growth: replace computation of UG by a simple copy from wspeed
330    
331    checkpoint61k
332    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
333      seaice_lsr: fixed a few metric terms,
334                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
335                  add more debugging diagnostics
336      seaice_evp: removed superfluous many metric terms of FV discretization
337                  of stress divergence
338                  affects lab_sea, lab_sea.hb87
339      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
340                  of stress divergence for non-evp solver
341                  (this part is not tested anywhere)
342      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
343                  they were effectively only half slip
344                  affects lab_sea.hb87
345      updated all relevant verification experiments (except lab_sea//output_adm.txt
346        which was left over, but fails at level 7 & 6)
347    
348    checkpoint61j
349    o pkg/seaice: turn a few hard wired parameters into run time parameters
350    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
351      time in seconds as promised by the usints in seaice_monitor and exf_monitor
352    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
353      that are not cubed-sphere grids
354    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
355    o pkg/ctrl:
356      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
357    o non-hydrostatic (calc_gw.F):
358      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
359      update output of exp. global_ocean.cs32x15.viscA4
360    o remove backward compatibility for thetaMin,phiMin
361      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
362    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
363      interpolated wind field not only for curvilineargrid=.true., but also
364      for a rotated grid (rotateGrid=.true.)
365    o pkg/exf: add capability to bypass interpolation for runoff
366      by setting yet another CPP-flag
367    o eesupp/src, B-grid exchange:
368      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
369    o autodiff
370      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
371      allows to switch to single-prec common blocks;
372      corresponding switch occurs in tamc.h, integer isbyte
373      TAF store directivs "byte" and "kind" seem equivalent;
374      Most tamc.h have been updated correspondingly.
375    
376    checkpoint61i
377    o autodiff:
378      fix autodiff_sore/_restore indices for obcs
379      (spotted by I. Hoteit, M. Mazloff)
380    o pkg/autodiff, pkg/ctrl:
381      Add flag to reduce all tapelev I/O to single-prec.
382      In data.ctrl set
383        doSinglePrecTapelev = .TRUE.
384    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
385      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
386    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
387      real fresh water flux (not yet)
388    o pkg/mdsio & rw:
389     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
390     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
391    o pkg/flt:
392     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
393       init_fixed & ini_varia.
394     - clean-up & simplify linear interpolation S/R:
395       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
396     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
397     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
398     - add vert. coordinate & horiz. indices to output files.
399     - change vertical position in initial condition, from index to depth [m].
400     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
401       (easier to get to a curvilinear grid) ; delX,delY no longer used.
402    o pkg/ggl90: a few modifications:
403     - fix bottom boundary condition, and interpolation of KappaE
404       near top and bottom
405     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
406     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
407     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
408    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
409      (maintain temporary backward compatibility, until next checkpoint)
410    
411    checkpoint61h
412    o pkg/diagnostics with "periodic averaging diagnostics":
413      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
414    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
415    o pkg/obcs: fix loop ranges for balancing code
416    o pkg/flt:
417     - improve criteria for finding which tile owns a float.
418     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
419    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
420      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
421      with ocean biogeo)
422    o pkg/flt:
423     - do some cleaning and fix the restart ;
424     - add output.txt in flt_example/results to get this pkg tested.
425    o genmake2: add an EXTENDED_SRC option and flag.
426       for now, cannot be turned on on command line (only through genmake_local)
427    o pkg/mdsio: read/write vector:
428     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
429     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
430       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
431     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
432      (drop to 4 digits matching for grad). But this test does not look very
433      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
434    
435    checkpoint61g
436    o pkg/flt:
437      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
438       + make OPTIONS file more standard.
439      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
440      - fix _BYTESWAPIO CPP-Flag
441      - standard reading of file-parameter "data.flt"
442      - fix argument list of S/R FLT_RESTART
443      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
444    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
445    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
446      a still unfixed compiler/optimization bug
447    
448    checkpoint61f
449    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
450      update results of global_ocean.cs32x15.icedyn test.
451    o move getcon.F from model/src to pkg/fizhi.
452    o pkg/exf: add parameter for extrapolation of temp up to the surface
453       and option to prevent negative evap (in bulk_largeyeager04 only).
454    o Prather Advection scheme: fix tracer conservation for divergent flow
455      (e.g., when using NonLin Free-Surface).
456    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
457    o gmredi (Visbeck-variable-K):
458     - add more parameters to Visbeck-variable-K.
459     - use a 5 points average for dSigmaR in Visbeck-K calculation
460       (more "homogenous": same stencil and same weights as in dSigmaH)
461     - update output of ideal_2D_oce experiment.
462    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
463      (#undef REAL4_IS_SLOW)
464     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
465       coordinate variable
466     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
467       (surface forcing fields), removes some of the functionality
468     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
469     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
470       probably not all: copy _RS surface flux fields to RL field before
471       calling DIAGNOSTICS_FILL
472     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
473       real*4 (CALL EXCH_*_RS) versions.
474     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
475       (generate new output).
476    
477    checkpoint61e
478    o gmredi (Visbeck-variable-K):
479      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
480      - change computation of Visbeck-K where Slope > Smax :        
481        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
482        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
483    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
484      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
485    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
486    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
487      does not become too large (to avoid precision problems in implicit-diffusion
488      solver); update ideal_2D_oce output.
489    o pkg ggl90:
490      - in ggl90_cal.F: compute only one set of visc/diff, used to
491        step forward TKE/T/S/momentum
492      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
493        have Prandlt =1)
494    o gmredi (fm07):
495      - add lower limit on Transition layer thickness + lower limit on 1/lambda
496      - allow to set few more params from data.gmredi
497    o pkg ggl90:
498          - add missing sqrt(2) factor in computation of mixing length
499            scale in ggl90_calc.F
500            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
501    
502    checkpoint61d
503    o adjoint modifs
504      - adapt to new field rhoInSitu
505      - allow to revert from StoreDynVars2D, StoreDynVars3D
506        to individual fields
507        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
508    o store 3-D (in-situ) density in commom block (DYNVARS.h)
509     - save 1 rho computation.
510     - no longer modify T & S inland when using down_slope pkg.
511    o gad_som : allow to switch to SOM advection for T & S without corresponding
512      pickup files (using new S/R: MDS_CHECK4FILE).
513    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
514      (for useSingleCpuIO to work in multi-threaded)
515    o pkg/shelfice:
516     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
517       with SHELFICEtopoFile in data.shelfice
518     - move code for reading ice shelf topography and modifying hFacC into separate
519       subroutines of the shelfice package
520     - separate initialisation of "fixed" and "variable" variables
521     - kTopC is not (yet) replaced by kSurfC, although this is possible
522    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
523    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
524      and rename:
525      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
526      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
527    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
528    
529    checkpoint61c
530    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
531      to add mass source/sink of fluid in the interior (3-D generalisation
532      of oceanic real-fresh water flux).
533    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
534    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
535    o new pkg: down_slope
536      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
537      - presently, modify T & S inland (dwnslp_calc_rho.F).
538        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
539      - implementation for ocean in P-coords not tested.
540      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
541    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
542      (to facilitate conversion of oceanic pkg to p-coordinate).
543    o change FIND_RHO to FIND_RHO_2D :
544      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
545    o new pkg: cheapaml
546    
547    checkpoint61b
548    o exch2:
549      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
550      - no longer depend on the order sequence (N,S,E,W).
551      - 3rd exchange no longer needed (tested with 24 tiles).
552      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
553      - exch_UV_A-grid readily available (but not yet tested).
554      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
555      (both are no longer needed) in exch_uv: no effect in forward run; but
556       get truncation error differences with adjoint exch.
557    o exch2:
558     - change index-bounds storage (moved from target to local tile,
559       more intuitive this way) ; rename/remove some variables.
560     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
561    
562    checkpoint61a
563    o exch2/matlab-topology-generator:
564      fix bug in index bounds for N-S internal exchange (hard to tell if this
565      had any effect on the solution).
566    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
567      is exceeded
568    o testreport: modify syntax of awk, so that it works also with
569      awk, and not only with nawk and gawk
570    
571    checkpoint61
572    o autodiff
573      Change default for TAF usage by removing argument '-nonew_arg'
574      This changes TAF subroutine argument list (ordering of active var.)
575      Omission of this flag leads to incompatibility w.r.t. TAMC
576      To restore TAMC-compatibility, need following modifs:
577      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
578      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
579      Tested TAF version is 1.9.22
580      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
581    
582    checkpoint60
583    --->>> This is the last checkpoint for which generating the adjoint
584    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
585    --->>> by default.
586    --->>> Future checkpoints will ommit this flag by default.
587    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
588    o pkg/grdchk: Add gradient check to etan0 perturbations.
589    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
590    o pkg/autodiff: more flexibility in zeroadj.
591      model/src: modifying do_oceanic_phys.F accordingly.
592    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
593    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
594      special setup of gmredi for which the adjoint is stable
595      enough for parameter optimization.
596    o bridging the gap between eddy stress and GM.
597      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
598          along with a change in CPP option (now ALLOW_EDDYPSI).
599      -> when using GM w/ GM_AdvForm:
600          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
601          is applied either in the tracer Eq. or in momentum Eq.
602          depending on data.gmredi (intro. GM_InMomAsStress).
603      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
604      The key modifications are in model/src/taueddy_external_forcing.F
605      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
606    
607    checkpoint59r
608    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
609      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
610      fix option to read coriolis(@ cell-corner) from files with CS-grid.
611    o pkg/mnc: add some attributes to standard 1D-coordinate variables
612    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
613      mass points, when using mnc for output
614      - add runtime parameter (missing_value, missing_value_int) to override
615        default (which is the value of getcon('UNDEF'))
616    o pkg/mnc: prepare mnc for the actual use of missing values with the
617      diagnostics package: small fix in mnc_cw_readwrite.template and more
618      initialisation of never used fields
619      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
620      versions
621    o pkg/thsice/thsice_ini_vars.F added default initial values so that
622      thermodynamics sea ice solver does not blow up when some initial fields
623      are missing.
624    o move from external_forcing_surf.F to ini_forcing.F
625      the p-coord. hack consisting in using pLoad to set phi0surf ;
626      update output of tutorial_global_oce_in_p (affected @ truncation level).
627    o Freshen up a bit hs94.1x64x5, notably:
628      remove rotationPeriod and tRef=5*0. (adjoint only), and add
629      exactConserv=.TRUE.
630    o pkg/generic_advdiff:
631      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
632      applies to files where Temperature & Salinity 2nd Order moments are used.
633    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
634      this uses a dynamically allocated internal state data structure
635      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
636      and requires a fortran 90 compiler
637    
638    checkpoint59q
639    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
640       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
641    o Refresh tutorial_global_oce_biogeo, notably:
642      - change bathymetry (put back seamounts in ACC, use hFacs)
643      - change EOS (POLY3 --> JMD95Z)
644      - use Bryan-Lewis vertical diffusivity
645      - use multidimensional advection
646      - remove old virtual virtual in dic pkg, now done through ptracer pkg
647      - change a couple of parameters in dic pkg
648    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
649    o pkg/obcs: change default to OBCSfixTopo = .true.,
650      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
651      - replace "debugMode" with "debugLevel .GE. debLevB"
652    o implementation of TAF directives for gchem,cfc,dic
653    o remove "exp5" (replaced by tutorial_deep_convection).
654    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
655      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
656      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
657      --> changes results in exp4, seaice_obcs
658    o tutorial_deep_convection :
659      update the set-up and increase resolution and domain size ; start
660      from pseudo initial conditions = output at t=120mn in order to see
661      something happening when running testreport.
662    o pkg/seaice: add os7mp as an advection scheme
663                  add check for advection schemes
664                  add a flag for restoring T and S underneath sea ice
665    o pkg/my82: add netcdf-support and diagnostics
666    o thsice pkg:
667      - Now hsMax limits snow height by turning it into ice following
668        flooding scheme (and now conserving energy)
669      - Slight rewriting of the formula in thsice_calc_thick.F
670      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
671      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
672    
673    checkpoint59p
674    o gchem / dic / cfc :
675      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
676      - add new parameter files: "data.dic" & "data.cfc" ;
677      - various re-arrangement in initialisation & header file ;
678      - fix tutorial_global_oce_biogeo for multi-threaded test.
679    o pkg/dic: test for "pickup_dic" file when restarting ;
680      if no pickup-file, can restart with a re-initialised pH (same as it did
681      before) providing pickupStrictlyMatch is set to False.
682    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
683      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
684    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
685      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
686    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
687     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
688       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
689    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
690       scheme to use for vorticty-term ;
691     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
692       (with default selectVortScheme, return to original discretisation)
693     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
694    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
695    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
696      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
697      also fix diagnostics VISCAHW & VISCA4W.
698    
699    checkpoint59o
700    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
701    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
702      move a few statemens out the main loop into separate loops
703    o pkg/shelfice:
704      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
705        (kg/m^2/s), does not break tests, because in verification/isomip,
706        rhoConstFresh=rhoConst (by accident)
707      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
708      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
709        new file model/src/seawater.F, so that they are available for all pkgs.
710      - convert potential temperature into in-situ temperature. This changes the
711        isomip tests => update tests
712    o add a flag writePickupAtEnd (default=true) to be able to suppress
713      writing a pickup at the last timestep
714    o tools/mpack-1.6 :
715      - disable automake (not working) and autoconf (not needed).
716      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
717        also cleaner with much less compilation warnings.
718    o pkg/profiles:
719      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
720      (for "less than 32 characters name" compiler requirement)
721    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
722      conditions that have a different sampling frequency than S/T/U/V obcs
723    o pkg/diagnostics (stats-diags):
724      - fix global Min/Max in case 1 processor get only empty tiles
725    o genmake2: replace (4 times)
726         make genmake_tc_1.o >> genmake_warnings 2>&1
727      with
728         COMM="$CC $CFLAGS -c genmake_tc_1.c"
729         echo $COMM >> genmake_warnings
730         $COMM >> genmake_warnings 2>&1
731      to make genmake2 always see the value of CC as specified in the optfile.
732    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
733      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
734      - modify verification advect_cs test to test SOM-advection on CS-grid.
735    o pkg/ctrl:
736      - Rewrite of ctrl_map_ini_ecco.F,
737        introducing a generic routine (ctrl_map_ini_gen.F).
738      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
739    
740    checkpoint59n
741    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
742      number in dedicate array "hdiag":
743      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
744        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
745      - many small changes (integer format) for large number of diagnostics
746      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
747        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
748    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
749      usingSphericalGrid, this allows to define the rotated grid coordinates
750      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
751      geographical coordinates according to the inverse of the rotation defined
752      by the Euler angles, so that Coriolis parameter and online-interpolation by
753      exf works with the geographical coordinates on XC/YC/XG/YG.
754      Naturally, this feature does not work with all packages, so some
755      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
756      profiles), because there the coordinates are assumed to be regular
757      spherical grid coordinates.
758    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
759      - introduce isopycnal diffusion coefficient control.
760    o tools/adjoint_options:
761      - additional control vector components.
762    o pkg/mnc: have mnc create marginally meaning full coordinate variables
763      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
764    o pkg/mypackage:
765      - add example of read/write pickup for state-var ;
766      - add entry points to the main code for state-vars diags & write-pickup.
767    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
768      transitions for useExfYearlyFields
769      - add new subroutine that determines the file to read from for
770        use*YearlyFields = .TRUE. and .FALSE.
771      - add a verification experiment to global_with_exf that tests
772        useExfYearlyFields with USE_EXF_INTERPOLATION defined
773    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
774      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
775      subroutines (which could be generated from a template, because they are
776      almost identical), for now they are included in obcs_prescribe_read.F for
777      simplicity
778    o pkg/exf:
779      - add a little more diagnostic to exf_interp_read (in analogy to
780        mds_read_field, can be turned off with debugLevel < debugLevA=1)
781      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
782        ugly but fast by unrolling short inner loops, inserting a unroll=8
783        directive in routine lagran, and splitting a loop and making do while the
784        outermost loop (the latter requires the intoduction of index arrays)
785    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
786    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
787      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
788    o verification/seaice_obcs: updated for restart test and latest options
789    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
790      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
791      for now this is only available for the C-grid code and also within
792      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
793    
794    checkpoint59m
795    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
796      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
797    o gad_som : fix flux output (& diagnostics) to have same units as other  
798      advection scheme fluxes (was previously multiplied by deltaT).  
799    o added verification/seaice_obcs both to test seaice open boundaries
800      and to provide an example matlab scrpt for generating them
801    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
802    o pkg/salt_plume: clean up salt_plume_frac.F to
803      remove redundancy in PlumeMethod 1 and 4
804    o pkg/kpp: added saltplume diagnostics
805    o pkg/obcs and pkg/seaice:
806      - do not set uice and vice to zero when OB*icefile are unspecified
807      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
808      - moved seaice tracer obcs after call to seaice_growth
809    o pkg/salt_plume: added various options for salt plume depth
810      criterion and for vertical distribution of the salt
811    
812    checkpoint59l
813    o pkg/ptracers: new version of ptracers pickup:
814      read meta file and write only fields which are needed to restart.
815      ( same logic as main pickup file ; also using pickupStrictlyMatch )
816    o pkg/seaice:
817      - add timescale for melting due to warm mixed layer as a means of
818        setting SEAICE_availHeatFrac more conveniently
819      - add a CPP-flag/runtime parameter check for flooding algorithm
820      - reformulated availHeat in seaice_growth.F to be independent of AREA
821    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
822      unit changes
823    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
824    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
825      SX vector computer.
826    o pkg/seaice:
827      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
828        seaice forcing fields can now be read only through pkg/exf
829      - removed some unused halos
830    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
831    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
832      or U/VICE from U/VWIND before computing U/VSTRESS
833    
834    checkpoint59k
835    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
836      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
837    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
838      all experiments pass when compile with un-initialised var. checking option.
839    o added pkg/salt_plume
840    o script to test restart (for now, in MITgcm_contrib/jmc_script)
841    o pkg/seaice: new read/write pickup version.
842      read meta file and write only fields which are needed to restart.
843      ( same logic as main pickup file ; also using pickupStrictlyMatch )
844    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
845    o lab_sea.hb87: modify the domain & update output.hb87.txt :
846      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
847      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
848      process. Fixed here by closing the domain at the Northern boundary.
849    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
850    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
851      a set of consecutive levels in/from a 3-D array.
852    o pkg/ptracers:
853      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
854      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
855    
856    checkpoint59j
857    o in pkgs: dic, obcs, offline, rbcs:
858      standard way to compute coeff. for time interpolation between 2 time reccords
859      which retains full precision (& make results less dependent on compiler).
860      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
861    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
862      packages instead of reading ice cover and wind speed separately
863    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
864     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
865      to allow to compile customized code before the update)
866    o cleaning-up:
867      - fix CPP instruction syntax in pkg/obcs
868      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
869        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
870      - fix some threads issue in IO parts.
871    o pkg/dic:
872      - add tons of "_d 0" (--> much better testreports !)
873       and then update outputs of tutorial_global_oce_biogeo
874    o pkg/mom_fluxform:
875      add a special version of momentum advection intended to conserve momentum
876      next to a bathymetry step or a coastline edge. (default = off = #undef)
877    o new read/write pickup version:
878      - for now, only implemented for main (mdsio) pickup file.
879      - write out only what is needed to restart; merge pickup_nh , pickup_ph
880        and main pickup together.
881      - read meta file; read only what is needed to restart; stop if a field
882        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
883        if it make sense (even if the restart is not perfect).
884      - if no meta file, assume that pickup to read corresponds exactly to
885        a pickup that would currently be written.
886      - read pickup written in the old format (until checkpoint59i) if it
887        recognizes an old meta file (no field-list).
888      - add a meta file in exp. which starts from a pickup: 2 cases:
889        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
890         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
891        b) a meta file describing the content of the associated pickup file
892         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
893    o pkg/mdsio & pkg/rw:
894      - new routine to read a meta file ; new set of routine to read
895        Multiple-fields file (with meta file).
896    o added open boundary conditions capability for seaice
897        HSNOW, HSALT, UICE, and VICE
898    
899    checkpoint59i
900    o adjoint:
901      * fix multiDimAdvection adjoint
902        (partial recomputation problem by TAF for fVerT(:,:,kDown)
903        and comlev1 size definition (maxpass vs. max. number of tracers)
904      * verification/global_ocean.90x45x15 adjoint now tests
905        NLFS and multiDimAdvection using DST3 (=30)
906      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
907    o pkg/kpp: add "_d 0" to real constant (if missing);
908      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
909      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
910    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
911      for internal parameters related to restart process (formerly from PARAMS.h)
912      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
913    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
914      as argument. (only atm2d & obcs write_pickup have not yet been updated)
915    o pkg/monitor:
916      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
917      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
918      - account for deep Atmosphere factor and density factor (anelastic)
919    o added open boundary conditions capability for seaice HEFF and AREA
920    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
921      thermodynamics
922      - requires a little reorganization, which affects the testreport results
923        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
924        so that now the conservative form is tested
925      - add a few comments
926    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
927    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
928    o add new diagnostics to seaice: advective, diffusive fluxes (only for
929      multidim-advection, for scheme 2 they are not filled) and transports,
930      thermodynamic growth rates
931    o change units of EmPmR (inside the code, + within coupling interface)
932      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
933      Affects results @ truncation level (cg2d match) and update output of
934       experiments: lab_sea(6), global_ocean.90x40x15(10),
935      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
936      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
937      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
938      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
939    
940    checkpoint59h
941    o pkg/exf:
942      - improve vectorization by moving if-statement out of loops in
943        exf_mapfields, exf_radiation
944      - exf_bulkformulae.F: introduce 2D fields and vectorize code
945    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
946    o testreport:
947      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
948        monitor & update offline_exf_seaice exp. output.
949      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
950    o pkg/seaice:
951      - bug fix in the evp solver: boundary conditions were affected be
952        masking of zMax/zMin (changes results)
953      - minor bug fix in boundary conditions in seaice_calc_strainrates
954        (changes results for no_slip)
955      - seaice_lsr.F: make interpolation of eta dependent on boundaries
956      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
957      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
958        stress formulation and no-slip boundary conditions
959    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
960      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
961    o pkg/seaice: a first HSALT time stepping equation has been checked in
962    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
963      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
964      without requiring DO-IF statements
965    o pkg/thsice:
966      use continuous power-law function for partition of energy between lateral
967      melting/freezing and thinning/thickening ; old code using step function
968      still available with #undef THSICE_FRACEN_POWERLAW
969      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
970    o testreport: change AD testing : check against results/output_adm.txt
971      using same scripts as for forward test.
972    
973    checkpoint59g
974    o adjoint testing: in preparation for changing testreport:
975      - output format: cost and grad written on separated lines
976      - ad output results in directory "results" (instead of "results_ad")
977    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
978    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
979    o pkg/ecco: allow user defined cost function contributions
980    o testreport:
981      Allow to choose (per experiment) the list of tested output variables
982       and the main variable (used to issue a pass/FAIL ) ;
983      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
984      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
985      Also modify printing of summary:
986       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
987       b) echo the list of tested variables in the individual summary.txt of
988          each experiment.
989    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
990      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
991      (but still depend on the tile decompostion of the domain).
992    o pkg/seaice: change a discretization detail to make the B-grid code
993      "more symmetric". This change is likely to remove all "ridges/leads" that
994      where quasi-aligned with the grid in B-grid solutions. It may also be
995      the solution to the stress coupling issues with the B-grid.
996    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
997      remove .cvsignore from input dir. (since testreport no longer run here).
998    o pkg/thsice:
999     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
1000     - fix reshaping of sea-ice just after advection:
1001       melt all the ice only if ice-volume is too small.
1002     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
1003       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
1004     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
1005    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
1006      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
1007    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
1008      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
1009      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
1010      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
1011      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
1012      -> update output.txt
1013    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
1014     this affects truncation error: -> update output.txt of exp:
1015      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
1016      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
1017    
1018    checkpoint59f
1019    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
1020    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
1021      a bounded range (in forward mode)
1022    o pkg/ecco, ctrl, autodiff and mom_common:
1023     internal parameter controls, completements of implementations
1024    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
1025    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
1026      (not seem any difference in testing results).
1027    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
1028       at face corners.
1029    o pkg/generic_advdiff:
1030     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
1031      loop range indices for computing vertical advection tendency
1032      and do the calculation in the interior only (no overlap) ;
1033      for now, only implemented for SOM advection (to save CPU time).
1034     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
1035    o exch2 adjoint
1036      First set of changes:
1037      - add exch2 hand-written adjoint templates
1038      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
1039        This will require cleanup in pkg/autodiff/*.F
1040        (changed routines currently kept separate in verif. code/)
1041      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
1042        that used to hide exch2 or cubed-sphere specific code
1043        (commented via 'cph-exch2')
1044    o pkg/seaice
1045      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1046    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1047       output of global_ocean.cs32x15.thsice .
1048    
1049    checkpoint59e
1050    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1051      for B-grid vector (not yet tested) and C-grid vector (<- only used
1052      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1053    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1054      (#ifdef ALLOW_SALT_PLUME)
1055    o gather_2d/scatter_2d: removed halo regions
1056  o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007  o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1057    scheme and the corresponding test case (under front_relax dir). For now,    scheme and the corresponding test case (under front_relax dir). For now,
1058    only available with Skew-flux form and not yet tested in realistic set-up.    only available with Skew-flux form and not yet tested in realistic set-up.
1059      adjoint: store directives updated, but gradient checks deteriorated,
1060      so maybe GM/Redi adjoint is now broken.
1061  o seaice adjoint  o seaice adjoint
1062    * add AREA, HEFF, HSNOW as control variable    * add AREA, HEFF, HSNOW as control variable
1063      (should not change lab_sea results)      (should not change lab_sea results)
1064    * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40    * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1065    o pkg/seaice:
1066      * added computation of saltFlux in seaice_growth;
1067        For time being, sea ice salinity is assumed constant
1068        contribution of snow flooding to freshening of sea ice is neglected.
1069        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1070        defaults to 0.0 in order to maintain backward compatibility.
1071        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1072      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1073      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1074        heat content used to melt or grow ice
1075      * commented out cap of HICE: it helps keep ice thinner
1076      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1077      * applied OBCS T/S mask to HEFFM sea ice mask
1078    
1079  checkpoint59d  checkpoint59d
1080  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array  o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
# Line 180  o in FFIELDS.h: Line 1244  o in FFIELDS.h:
1244       ATMOSPHERIC_LOADING is #define).       ATMOSPHERIC_LOADING is #define).
1245  o pkg/kpp: replaced _KPP_RL with _RL  o pkg/kpp: replaced _KPP_RL with _RL
1246  o bug fixes for vertical diffusivity computations when both KPP and  o bug fixes for vertical diffusivity computations when both KPP and
1247      3D diffusivity arrays are used.      3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1248        are no longer updating the vertical diffusivity array
1249        (passed as argument) but are (re-) setting those arrays.
1250  o pkg/seaice: fix bug in evp solver, while doing that  o pkg/seaice: fix bug in evp solver, while doing that
1251    - change (improve?) discretization of stress computations for both    - change (improve?) discretization of stress computations for both
1252      cgrid-lsr and evp solver      cgrid-lsr and evp solver
# Line 1662  o add two new packages Line 2728  o add two new packages
2728    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2729    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2730      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2731      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2732  o add offline package  o add offline package
2733  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2734    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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