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revision 1.733 by jmc, Tue Oct 17 19:08:57 2006 UTC revision 1.1141 by jmc, Mon Jul 13 21:57:32 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 eeset_parms.F, open_copy_data_file.F & ini_parms.F:
8       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
9       each processor open a different file (a fix from Matt).
10    o cg2d:
11       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
12       this reduces number of EXCH calls by 2 when using exch2.
13       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
14       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
15    o pkg/thsice:
16       add code for Near Infra-Red albedo (from Jeff)
17       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
18    o ini_model_io:
19       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
20       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
21       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
22    
23    checkpoint61s
24    o pkg/exch2 (exch2_rxN_cube*):
25       remove last BARRIER (no need to synchronise after getting data from shared
26       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
27    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
28      and generate new output (for the 2 tests) using default rotationPeriod.
29    o pkg/exch2:
30      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
31        (was already the case with AUTODIFF_EXCH2 defined)
32      - add bj in exch2 arrays and S/R.
33      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
34        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
35    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
36      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
37        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
38      - verification experiment natl_box.longstep
39    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
40      allow different versions of ifort (8 or 9) and different versions
41       of mpi (mpich or mpich2) to be used with the same optfile.
42      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
43       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
44    o pkg/seaice:
45      fix previous modif (3-level field removed) for old-pickup reading
46    
47    checkpoint61r
48    o pkg/seaice:
49     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
50      1. introduce fields for time step (N-1)
51      2. do not use levels 2 and 3 anymore (but keep them)
52      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
53         includes changes to pkg/thsice/thsice_get_velocity.F,
54         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
55         pkg/obcs/obcs_apply_uvice.F.
56     - completely remove code for leap-frog time stepping for second order
57       advection
58     - adjusted adjoint accordingly;
59       gradient checks have improved by an order of magnitude!
60    
61    checkpoint61q
62    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
63     - the boundary conditions along open boundaries are unclear, because the
64       associated masks are set to zero and are thus treated as closed when
65       applying the slip-boundary conditions.
66     - move initialisation of grid variables from seaice_init_varia to _fixed
67    o adding doc/diags_changes.txt
68    o model/src:
69      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
70       to avoid "_diags" naming if no relation to pkg/diagnostics.
71      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
72       file and only call PLOT_FIELD_XYZ if debugMode=T.
73      remove few PLOT_FIELD_XY calls outside initialisation.
74      remove few unnecessary BARRIER.
75    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
76      of salt_plume package in Southern Ocean
77    o pkg/thsice:
78     - fix hOceMxL in overlap (needed for sea-ice advection);
79       update output of experiment global_ocean.cs32x15.icedyn.
80    o pkg/seaice:
81     - make the (placeholder-)tracer IceAge a little more meaningful
82      by avoiding ridging of age due to convergent ice flow
83     - add diagnostics for surface temperature, atmospheric and oceanic
84       heat flux, and atmospheric and oceanic ice growth
85    
86    checkpoint61p
87    o eesupp (global_max & global_sum):
88     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
89     - remove starting & endding barrier (no longer needed)
90    o pkg/mdsio, writelocal:
91       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
92       (remove the STOP): uses shared buffer IO to store data from all threads
93       and then let master-thread write nThreads tiles.
94    o pkg/mdsio (read/write field):
95     - tiled IO done in 1 piece (all levels at a time);
96     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
97     - multi-threaded: allow to read/write local (non-shared) array
98       (was already working with singleCpuIO ; now works also without);
99       => no longer needs barrier call after reading a file (added inside
100       mds_read/write field).
101     - move barrier calls outside gather/scatter_2d to mds_read/write_field
102    o pkg/obcs/exf
103      - exf_getffieldrec.F: add a few ". _d 0" and
104                            add code to catch the case fldperiod = 0.  
105      - obcs_precribe_read.F: change if statements so that they match
106                              the variable type (_RL)
107      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
108        exf_iprec) as part of namelist EXF_NML_01
109    o pkg/mdsio:
110      - read/write tiled (local) files: read/write 1-level tile chunk at a time
111        (instead of segment of length sNx); expected to speed up tiled IO.
112    o pkg/exch2:
113      - take buffer copy from/to array out of S/R exch2_send/recv into new
114        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
115        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
116      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
117      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
118        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
119        including Topology header file (and common blocks).
120      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
121        remove 2nd exch call in exch2_s3d_rx (no longer needed).
122      - document S/R arg. list (+ update some comments)
123    o pkg/seaice:
124      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
125        temperature and humidity over sea ice based on climatological values.
126      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
127        of LSR (this change is expected to change the results slightly because now
128        it uses slightly difference moduli from the second last LSR solution, but
129        that is more consistent with the stress computations; this part of the code
130        is not tested in the verification experiments)
131      - fix diagnostics for flux of ice in case of B-grid
132      - turn strain rates eij and press into global fields within global
133        common block in SEAICE.h for more straighforward diagnostics
134      - fix diagnostics for principal stress components, press, zeta, eta
135        to give something meaning full
136    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
137      new output (all 4 tests) using default rotationPeriod.
138    o pkg KPP:
139      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
140      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
141        and normal grid from 1 to Nr)
142    o Fix computations of L4rdt in mom_calc_visc.F
143    o eesupp:
144      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
145      should be called before a "stop" if we know that all process are going
146      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
147    
148    checkpoint61o
149    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
150    o model/src/ini_curvilinear_grid.F:
151       compute angleSin/CosC when they are not read from a file
152    o pkg/seaice:
153       add pseudo time stepping for LSOR
154    o pkg/exch2:
155       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
156    o pkg/seaice:
157       Adding separate sea ice albedo, drag coefficients, and HO in Southern
158       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
159    o SingleCpuIO:
160       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
161    o pkg/seaice:
162       put exchanged variable in (local) common block for MPI+Multi-Threads
163       to work (necessary with exch1, and for now with exch2 too).
164    o verification: to get more experiments tested with mpi, mth and mpi+mth,
165      change tiling of:
166       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
167       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
168      update output of exp:
169       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
170       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
171      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
172                       (note: output.txt generated on faulks using only 1 tile)
173    o eesupp & mdsio (SingleCpuIO):
174     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
175       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
176       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
177     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
178     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
179       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
180    o pkg/exch2:
181     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
182       read parameter file "data.exch2" if it exists; otherwise try default regular
183       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
184     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
185       with new code (not to be used, just as a backup solution).
186     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
187       in utils/exch2/input.
188    
189    checkpoint61n
190    o eesupp & mdsio (SingleCpuIO):
191      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
192        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
193        receive real*4 array (instead of real*8) to read/write 32.bit files.
194        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
195         and remove new mapping S/R)
196    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
197      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
198        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
199        when using exch2. Add S/R to map global io-buffer to global model array.
200      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
201    
202    checkpoint61m
203    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
204      and add 3 other S/R for other types (R4,R8,RS).
205      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
206    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
207     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
208     - reduce number of macro definitions (keep only those which are used);
209       can always call directly the corrresponding S/R if needed.
210     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
211       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
212     Fixed wrong type of arg in:
213       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
214       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
215     To fix: global_sum of var in common block is wrong (multi-threaded) in:
216       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
217     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
218    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
219      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
220    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
221    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
222      edges are closed (zero depth); might happen with "blank tiles";
223      for now, disabled if using OBCS.
224    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
225      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
226    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
227      to reduce length of 1.D array print in STDOUT.
228    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
229      + use 48 tiles (16x8): this will allow to test "blank tiles".
230    o start to test MPI + multi-threaded (change testreport to skip tests
231      where number of tiles do not match).
232    o genmake2: add option "-omp" to turn on Open-MP ;
233      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
234    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
235      and keep the original tile numbering. Note: compatible with old
236      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
237    
238    checkpoint61l
239    o Overlaps had been forgotten in calculating ijk keys : fixed
240    o fix cyrus makedepend for gcc 4.4
241    o experiment fizhi-cs-aqualev20:
242      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
243      and generate new output. Note: new output is much closer to the old
244      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
245      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
246    o pkg/fizhi:
247     - change to avoid indices going deliberately over array-bounds
248     - remove unnecessary MPI stuff
249     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
250     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
251       does not go over array-bounds and therefore returns reliable output.
252     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
253       this S/R has 4 output arguments, which are used inside "get_alarm";
254       when it is called with the same variable "ndum" in place of several
255       output arguments, this produces weird side effect inside "get_alarm"
256      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
257       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
258       address) and produces error.
259    o tools/gemake2: (March 27-29 2009)
260      with option "-mpi": link *_mpi files from "MODS" dir (this is what
261      testreport does).
262    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
263    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
264       update lab_sea.lsr & lab_sea.salt_plume results
265    o pkg/seaice:
266      Major overhaul of the LSOR solver: change discretization from original
267      finite differences to finite volume. The old routine is still in the
268      file seaice_lsr.F and can be turned on with the CPP-flag
269      SEAICE_OLD_AND_BAD_DISCRETIZATION
270      Along with this change, the discretization of the strain rates is changed.
271      The same flag turns on the old discretization in seaice_calc_strainrates.F
272      All verification experiments with seaice are affected (except for
273      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
274      results by setting the above flag.
275      Further changes involve changes in defaults:
276      - ALLOW_FLOODING is defined and turned on by default
277      - SEAICEadvSnow = .true. is now the default
278      - SEAICEadvSalt = .true. is now the default
279      - SEAICEadvAge  = .true. is now the default
280      - SEAICE_clipVelocities  = .false. is now the default
281                                         (as per J. Zhang's recommendation)
282      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
283        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
284      - seaice_growth: replace computation of UG by a simple copy from wspeed
285    
286    checkpoint61k
287    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
288      seaice_lsr: fixed a few metric terms,
289                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
290                  add more debugging diagnostics
291      seaice_evp: removed superfluous many metric terms of FV discretization
292                  of stress divergence
293                  affects lab_sea, lab_sea.hb87
294      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
295                  of stress divergence for non-evp solver
296                  (this part is not tested anywhere)
297      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
298                  they were effectively only half slip
299                  affects lab_sea.hb87
300      updated all relevant verification experiments (except lab_sea//output_adm.txt
301        which was left over, but fails at level 7 & 6)
302    
303    checkpoint61j
304    o pkg/seaice: turn a few hard wired parameters into run time parameters
305    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
306      time in seconds as promised by the usints in seaice_monitor and exf_monitor
307    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
308      that are not cubed-sphere grids
309    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
310    o pkg/ctrl:
311      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
312    o non-hydrostatic (calc_gw.F):
313      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
314      update output of exp. global_ocean.cs32x15.viscA4
315    o remove backward compatibility for thetaMin,phiMin
316      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
317    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
318      interpolated wind field not only for curvilineargrid=.true., but also
319      for a rotated grid (rotateGrid=.true.)
320    o pkg/exf: add capability to bypass interpolation for runoff
321      by setting yet another CPP-flag
322    o eesupp/src, B-grid exchange:
323      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
324    o autodiff
325      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
326      allows to switch to single-prec common blocks;
327      corresponding switch occurs in tamc.h, integer isbyte
328      TAF store directivs "byte" and "kind" seem equivalent;
329      Most tamc.h have been updated correspondingly.
330    
331    checkpoint61i
332    o autodiff:
333      fix autodiff_sore/_restore indices for obcs
334      (spotted by I. Hoteit, M. Mazloff)
335    o pkg/autodiff, pkg/ctrl:
336      Add flag to reduce all tapelev I/O to single-prec.
337      In data.ctrl set
338        doSinglePrecTapelev = .TRUE.
339    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
340      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
341    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
342      real fresh water flux (not yet)
343    o pkg/mdsio & rw:
344     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
345     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
346    o pkg/flt:
347     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
348       init_fixed & ini_varia.
349     - clean-up & simplify linear interpolation S/R:
350       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
351     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
352     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
353     - add vert. coordinate & horiz. indices to output files.
354     - change vertical position in initial condition, from index to depth [m].
355     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
356       (easier to get to a curvilinear grid) ; delX,delY no longer used.
357    o pkg/ggl90: a few modifications:
358     - fix bottom boundary condition, and interpolation of KappaE
359       near top and bottom
360     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
361     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
362     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
363    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
364      (maintain temporary backward compatibility, until next checkpoint)
365    
366    checkpoint61h
367    o pkg/diagnostics with "periodic averaging diagnostics":
368      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
369    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
370    o pkg/obcs: fix loop ranges for balancing code
371    o pkg/flt:
372     - improve criteria for finding which tile owns a float.
373     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
374    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
375      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
376      with ocean biogeo)
377    o pkg/flt:
378     - do some cleaning and fix the restart ;
379     - add output.txt in flt_example/results to get this pkg tested.
380    o genmake2: add an EXTENDED_SRC option and flag.
381       for now, cannot be turned on on command line (only through genmake_local)
382    o pkg/mdsio: read/write vector:
383     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
384     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
385       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
386     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
387      (drop to 4 digits matching for grad). But this test does not look very
388      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
389    
390    checkpoint61g
391    o pkg/flt:
392      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
393       + make OPTIONS file more standard.
394      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
395      - fix _BYTESWAPIO CPP-Flag
396      - standard reading of file-parameter "data.flt"
397      - fix argument list of S/R FLT_RESTART
398      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
399    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
400    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
401      a still unfixed compiler/optimization bug
402    
403    checkpoint61f
404    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
405      update results of global_ocean.cs32x15.icedyn test.
406    o move getcon.F from model/src to pkg/fizhi.
407    o pkg/exf: add parameter for extrapolation of temp up to the surface
408       and option to prevent negative evap (in bulk_largeyeager04 only).
409    o Prather Advection scheme: fix tracer conservation for divergent flow
410      (e.g., when using NonLin Free-Surface).
411    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
412    o gmredi (Visbeck-variable-K):
413     - add more parameters to Visbeck-variable-K.
414     - use a 5 points average for dSigmaR in Visbeck-K calculation
415       (more "homogenous": same stencil and same weights as in dSigmaH)
416     - update output of ideal_2D_oce experiment.
417    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
418      (#undef REAL4_IS_SLOW)
419     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
420       coordinate variable
421     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
422       (surface forcing fields), removes some of the functionality
423     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
424     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
425       probably not all: copy _RS surface flux fields to RL field before
426       calling DIAGNOSTICS_FILL
427     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
428       real*4 (CALL EXCH_*_RS) versions.
429     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
430       (generate new output).
431    
432    checkpoint61e
433    o gmredi (Visbeck-variable-K):
434      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
435      - change computation of Visbeck-K where Slope > Smax :        
436        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
437        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
438    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
439      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
440    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
441    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
442      does not become too large (to avoid precision problems in implicit-diffusion
443      solver); update ideal_2D_oce output.
444    o pkg ggl90:
445      - in ggl90_cal.F: compute only one set of visc/diff, used to
446        step forward TKE/T/S/momentum
447      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
448        have Prandlt =1)
449    o gmredi (fm07):
450      - add lower limit on Transition layer thickness + lower limit on 1/lambda
451      - allow to set few more params from data.gmredi
452    o pkg ggl90:
453          - add missing sqrt(2) factor in computation of mixing length
454            scale in ggl90_calc.F
455            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
456    
457    checkpoint61d
458    o adjoint modifs
459      - adapt to new field rhoInSitu
460      - allow to revert from StoreDynVars2D, StoreDynVars3D
461        to individual fields
462        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
463    o store 3-D (in-situ) density in commom block (DYNVARS.h)
464     - save 1 rho computation.
465     - no longer modify T & S inland when using down_slope pkg.
466    o gad_som : allow to switch to SOM advection for T & S without corresponding
467      pickup files (using new S/R: MDS_CHECK4FILE).
468    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
469      (for useSingleCpuIO to work in multi-threaded)
470    o pkg/shelfice:
471     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
472       with SHELFICEtopoFile in data.shelfice
473     - move code for reading ice shelf topography and modifying hFacC into separate
474       subroutines of the shelfice package
475     - separate initialisation of "fixed" and "variable" variables
476     - kTopC is not (yet) replaced by kSurfC, although this is possible
477    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
478    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
479      and rename:
480      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
481      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
482    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
483    
484    checkpoint61c
485    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
486      to add mass source/sink of fluid in the interior (3-D generalisation
487      of oceanic real-fresh water flux).
488    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
489    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
490    o new pkg: down_slope
491      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
492      - presently, modify T & S inland (dwnslp_calc_rho.F).
493        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
494      - implementation for ocean in P-coords not tested.
495      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
496    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
497      (to facilitate conversion of oceanic pkg to p-coordinate).
498    o change FIND_RHO to FIND_RHO_2D :
499      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
500    o new pkg: cheapaml
501    
502    checkpoint61b
503    o exch2:
504      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
505      - no longer depend on the order sequence (N,S,E,W).
506      - 3rd exchange no longer needed (tested with 24 tiles).
507      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
508      - exch_UV_A-grid readily available (but not yet tested).
509      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
510      (both are no longer needed) in exch_uv: no effect in forward run; but
511       get truncation error differences with adjoint exch.
512    o exch2:
513     - change index-bounds storage (moved from target to local tile,
514       more intuitive this way) ; rename/remove some variables.
515     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
516    
517    checkpoint61a
518    o exch2/matlab-topology-generator:
519      fix bug in index bounds for N-S internal exchange (hard to tell if this
520      had any effect on the solution).
521    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
522      is exceeded
523    o testreport: modify syntax of awk, so that it works also with
524      awk, and not only with nawk and gawk
525    
526    checkpoint61
527    o autodiff
528      Change default for TAF usage by removing argument '-nonew_arg'
529      This changes TAF subroutine argument list (ordering of active var.)
530      Omission of this flag leads to incompatibility w.r.t. TAMC
531      To restore TAMC-compatibility, need following modifs:
532      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
533      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
534      Tested TAF version is 1.9.22
535      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
536    
537    checkpoint60
538    --->>> This is the last checkpoint for which generating the adjoint
539    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
540    --->>> by default.
541    --->>> Future checkpoints will ommit this flag by default.
542    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
543    o pkg/grdchk: Add gradient check to etan0 perturbations.
544    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
545    o pkg/autodiff: more flexibility in zeroadj.
546      model/src: modifying do_oceanic_phys.F accordingly.
547    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
548    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
549      special setup of gmredi for which the adjoint is stable
550      enough for parameter optimization.
551    o bridging the gap between eddy stress and GM.
552      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
553          along with a change in CPP option (now ALLOW_EDDYPSI).
554      -> when using GM w/ GM_AdvForm:
555          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
556          is applied either in the tracer Eq. or in momentum Eq.
557          depending on data.gmredi (intro. GM_InMomAsStress).
558      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
559      The key modifications are in model/src/taueddy_external_forcing.F
560      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
561    
562    checkpoint59r
563    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
564      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
565      fix option to read coriolis(@ cell-corner) from files with CS-grid.
566    o pkg/mnc: add some attributes to standard 1D-coordinate variables
567    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
568      mass points, when using mnc for output
569      - add runtime parameter (missing_value, missing_value_int) to override
570        default (which is the value of getcon('UNDEF'))
571    o pkg/mnc: prepare mnc for the actual use of missing values with the
572      diagnostics package: small fix in mnc_cw_readwrite.template and more
573      initialisation of never used fields
574      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
575      versions
576    o pkg/thsice/thsice_ini_vars.F added default initial values so that
577      thermodynamics sea ice solver does not blow up when some initial fields
578      are missing.
579    o move from external_forcing_surf.F to ini_forcing.F
580      the p-coord. hack consisting in using pLoad to set phi0surf ;
581      update output of tutorial_global_oce_in_p (affected @ truncation level).
582    o Freshen up a bit hs94.1x64x5, notably:
583      remove rotationPeriod and tRef=5*0. (adjoint only), and add
584      exactConserv=.TRUE.
585    o pkg/generic_advdiff:
586      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
587      applies to files where Temperature & Salinity 2nd Order moments are used.
588    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
589      this uses a dynamically allocated internal state data structure
590      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
591      and requires a fortran 90 compiler
592    
593    checkpoint59q
594    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
595       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
596    o Refresh tutorial_global_oce_biogeo, notably:
597      - change bathymetry (put back seamounts in ACC, use hFacs)
598      - change EOS (POLY3 --> JMD95Z)
599      - use Bryan-Lewis vertical diffusivity
600      - use multidimensional advection
601      - remove old virtual virtual in dic pkg, now done through ptracer pkg
602      - change a couple of parameters in dic pkg
603    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
604    o pkg/obcs: change default to OBCSfixTopo = .true.,
605      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
606      - replace "debugMode" with "debugLevel .GE. debLevB"
607    o implementation of TAF directives for gchem,cfc,dic
608    o remove "exp5" (replaced by tutorial_deep_convection).
609    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
610      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
611      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
612      --> changes results in exp4, seaice_obcs
613    o tutorial_deep_convection :
614      update the set-up and increase resolution and domain size ; start
615      from pseudo initial conditions = output at t=120mn in order to see
616      something happening when running testreport.
617    o pkg/seaice: add os7mp as an advection scheme
618                  add check for advection schemes
619                  add a flag for restoring T and S underneath sea ice
620    o pkg/my82: add netcdf-support and diagnostics
621    o thsice pkg:
622      - Now hsMax limits snow height by turning it into ice following
623        flooding scheme (and now conserving energy)
624      - Slight rewriting of the formula in thsice_calc_thick.F
625      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
626      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
627    
628    checkpoint59p
629    o gchem / dic / cfc :
630      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
631      - add new parameter files: "data.dic" & "data.cfc" ;
632      - various re-arrangement in initialisation & header file ;
633      - fix tutorial_global_oce_biogeo for multi-threaded test.
634    o pkg/dic: test for "pickup_dic" file when restarting ;
635      if no pickup-file, can restart with a re-initialised pH (same as it did
636      before) providing pickupStrictlyMatch is set to False.
637    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
638      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
639    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
640      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
641    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
642     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
643       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
644    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
645       scheme to use for vorticty-term ;
646     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
647       (with default selectVortScheme, return to original discretisation)
648     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
649    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
650    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
651      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
652      also fix diagnostics VISCAHW & VISCA4W.
653    
654    checkpoint59o
655    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
656    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
657      move a few statemens out the main loop into separate loops
658    o pkg/shelfice:
659      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
660        (kg/m^2/s), does not break tests, because in verification/isomip,
661        rhoConstFresh=rhoConst (by accident)
662      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
663      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
664        new file model/src/seawater.F, so that they are available for all pkgs.
665      - convert potential temperature into in-situ temperature. This changes the
666        isomip tests => update tests
667    o add a flag writePickupAtEnd (default=true) to be able to suppress
668      writing a pickup at the last timestep
669    o tools/mpack-1.6 :
670      - disable automake (not working) and autoconf (not needed).
671      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
672        also cleaner with much less compilation warnings.
673    o pkg/profiles:
674      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
675      (for "less than 32 characters name" compiler requirement)
676    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
677      conditions that have a different sampling frequency than S/T/U/V obcs
678    o pkg/diagnostics (stats-diags):
679      - fix global Min/Max in case 1 processor get only empty tiles
680    o genmake2: replace (4 times)
681         make genmake_tc_1.o >> genmake_warnings 2>&1
682      with
683         COMM="$CC $CFLAGS -c genmake_tc_1.c"
684         echo $COMM >> genmake_warnings
685         $COMM >> genmake_warnings 2>&1
686      to make genmake2 always see the value of CC as specified in the optfile.
687    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
688      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
689      - modify verification advect_cs test to test SOM-advection on CS-grid.
690    o pkg/ctrl:
691      - Rewrite of ctrl_map_ini_ecco.F,
692        introducing a generic routine (ctrl_map_ini_gen.F).
693      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
694    
695    checkpoint59n
696    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
697      number in dedicate array "hdiag":
698      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
699        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
700      - many small changes (integer format) for large number of diagnostics
701      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
702        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
703    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
704      usingSphericalGrid, this allows to define the rotated grid coordinates
705      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
706      geographical coordinates according to the inverse of the rotation defined
707      by the Euler angles, so that Coriolis parameter and online-interpolation by
708      exf works with the geographical coordinates on XC/YC/XG/YG.
709      Naturally, this feature does not work with all packages, so some
710      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
711      profiles), because there the coordinates are assumed to be regular
712      spherical grid coordinates.
713    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
714      - introduce isopycnal diffusion coefficient control.
715    o tools/adjoint_options:
716      - additional control vector components.
717    o pkg/mnc: have mnc create marginally meaning full coordinate variables
718      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
719    o pkg/mypackage:
720      - add example of read/write pickup for state-var ;
721      - add entry points to the main code for state-vars diags & write-pickup.
722    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
723      transitions for useExfYearlyFields
724      - add new subroutine that determines the file to read from for
725        use*YearlyFields = .TRUE. and .FALSE.
726      - add a verification experiment to global_with_exf that tests
727        useExfYearlyFields with USE_EXF_INTERPOLATION defined
728    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
729      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
730      subroutines (which could be generated from a template, because they are
731      almost identical), for now they are included in obcs_prescribe_read.F for
732      simplicity
733    o pkg/exf:
734      - add a little more diagnostic to exf_interp_read (in analogy to
735        mds_read_field, can be turned off with debugLevel < debugLevA=1)
736      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
737        ugly but fast by unrolling short inner loops, inserting a unroll=8
738        directive in routine lagran, and splitting a loop and making do while the
739        outermost loop (the latter requires the intoduction of index arrays)
740    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
741    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
742      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
743    o verification/seaice_obcs: updated for restart test and latest options
744    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
745      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
746      for now this is only available for the C-grid code and also within
747      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
748    
749    checkpoint59m
750    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
751      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
752    o gad_som : fix flux output (& diagnostics) to have same units as other  
753      advection scheme fluxes (was previously multiplied by deltaT).  
754    o added verification/seaice_obcs both to test seaice open boundaries
755      and to provide an example matlab scrpt for generating them
756    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
757    o pkg/salt_plume: clean up salt_plume_frac.F to
758      remove redundancy in PlumeMethod 1 and 4
759    o pkg/kpp: added saltplume diagnostics
760    o pkg/obcs and pkg/seaice:
761      - do not set uice and vice to zero when OB*icefile are unspecified
762      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
763      - moved seaice tracer obcs after call to seaice_growth
764    o pkg/salt_plume: added various options for salt plume depth
765      criterion and for vertical distribution of the salt
766    
767    checkpoint59l
768    o pkg/ptracers: new version of ptracers pickup:
769      read meta file and write only fields which are needed to restart.
770      ( same logic as main pickup file ; also using pickupStrictlyMatch )
771    o pkg/seaice:
772      - add timescale for melting due to warm mixed layer as a means of
773        setting SEAICE_availHeatFrac more conveniently
774      - add a CPP-flag/runtime parameter check for flooding algorithm
775      - reformulated availHeat in seaice_growth.F to be independent of AREA
776    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
777      unit changes
778    o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
779    o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
780      SX vector computer.
781    o pkg/seaice:
782      - removed SEAICE_FFIELDS.h and seaice_get_forcing.F
783        seaice forcing fields can now be read only through pkg/exf
784      - removed some unused halos
785    o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
786    o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
787      or U/VICE from U/VWIND before computing U/VSTRESS
788    
789    checkpoint59k
790    o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
791      dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
792    o fix un-initialised variable problem (in mom_vecinv & shap_filt):
793      all experiments pass when compile with un-initialised var. checking option.
794    o added pkg/salt_plume
795    o script to test restart (for now, in MITgcm_contrib/jmc_script)
796    o pkg/seaice: new read/write pickup version.
797      read meta file and write only fields which are needed to restart.
798      ( same logic as main pickup file ; also using pickupStrictlyMatch )
799    o pkg/seaice: fix bug in seaice_ocean_stress (call of seaice_calc_strainrates)
800    o lab_sea.hb87: modify the domain & update output.hb87.txt :
801      lat-long grid & no-slip BC in seaice-dynamics produce different sigma12
802      at j=1 & j=Ny+1 : this case is not treated correctly in the restart
803      process. Fixed here by closing the domain at the Northern boundary.
804    o pkg/rw: cleaning-up: call directly new MDSIO S/R MDS_READ/WRITE_FIELD.
805    o pkg/mdsio: add new arguments to MDS_READ/WRITE_FIELD for reading/writing
806      a set of consecutive levels in/from a 3-D array.
807    o pkg/ptracers:
808      use a 2 characters string ioLabel to identify tracer (if more than 99 tracers).
809      to-do: fix pkg/diagnostics when large number of diagnostics are defined.
810    
811    checkpoint59j
812    o in pkgs: dic, obcs, offline, rbcs:
813      standard way to compute coeff. for time interpolation between 2 time reccords
814      which retains full precision (& make results less dependent on compiler).
815      update output of exp: tutorial_cfc_offline & tutorial_global_oce_biogeo.
816    o pkg/cfc: if compiled with exf and seaice, cfc now can use fields from those
817      packages instead of reading ice cover and wind speed separately
818    o split PTRACERS.h in 2 header files: PTRACERS_FIELDS.h & PTRACERS_PARAMS.h
819     (keep a temporary version of PTRACERS.h in verification/OpenAD/code_ad_openad
820      to allow to compile customized code before the update)
821    o cleaning-up:
822      - fix CPP instruction syntax in pkg/obcs
823      - replace (some) call to MDSIO S/R with call to RW interface S/R ; and
824        add #ifdef ALLOW_MDSIO elsewhere (allows to compile without pkg/mdsio)
825      - fix some threads issue in IO parts.
826    o pkg/dic:
827      - add tons of "_d 0" (--> much better testreports !)
828       and then update outputs of tutorial_global_oce_biogeo
829    o pkg/mom_fluxform:
830      add a special version of momentum advection intended to conserve momentum
831      next to a bathymetry step or a coastline edge. (default = off = #undef)
832    o new read/write pickup version:
833      - for now, only implemented for main (mdsio) pickup file.
834      - write out only what is needed to restart; merge pickup_nh , pickup_ph
835        and main pickup together.
836      - read meta file; read only what is needed to restart; stop if a field
837        is missing (if pickupStrictlyMatch=T, = the default) or try to restart
838        if it make sense (even if the restart is not perfect).
839      - if no meta file, assume that pickup to read corresponds exactly to
840        a pickup that would currently be written.
841      - read pickup written in the old format (until checkpoint59i) if it
842        recognizes an old meta file (no field-list).
843      - add a meta file in exp. which starts from a pickup: 2 cases:
844        a) minimal meta file (with just file precision) + pickupStrictlyMatch=F
845         e.g.: global_ocean.90x40x15/input/pickup.0000036000.meta
846        b) a meta file describing the content of the associated pickup file
847         e.g.: tutorial_global_oce_biogeo/input/pickup.0004248000.meta
848    o pkg/mdsio & pkg/rw:
849      - new routine to read a meta file ; new set of routine to read
850        Multiple-fields file (with meta file).
851    o added open boundary conditions capability for seaice
852        HSNOW, HSALT, UICE, and VICE
853    
854    checkpoint59i
855    o adjoint:
856      * fix multiDimAdvection adjoint
857        (partial recomputation problem by TAF for fVerT(:,:,kDown)
858        and comlev1 size definition (maxpass vs. max. number of tracers)
859      * verification/global_ocean.90x45x15 adjoint now tests
860        NLFS and multiDimAdvection using DST3 (=30)
861      * verification/lab_sea now tests multiDimAdvection using DST3 (=30)
862    o pkg/kpp: add "_d 0" to real constant (if missing);
863      update output of exp: natl_box (10.digits); vermix (std, 7.digits)
864      and lab_sea, 3.FW (only 6,4,6 digits match) & AD (8.digits).
865    o prepare for "clever pickup" implementation: add new header file "RESTART.h"
866      for internal parameters related to restart process (formerly from PARAMS.h)
867      and add startAB parameter to argument list of S/R ADAMS_BASHFORTH2.
868    o more standard interface to {PKG}_WRITE_PICKUP with pickup suffix passed
869      as argument. (only atm2d & obcs write_pickup have not yet been updated)
870    o pkg/monitor:
871      - use GLOBAL_SUM_TILE instead of _GLOBAL_SUM
872      - fix mon_stats_rs (statistics over the full domain, even where field is zero)
873      - account for deep Atmosphere factor and density factor (anelastic)
874    o added open boundary conditions capability for seaice HEFF and AREA
875    o pkg/shelfice: add option for convservative form of Hellmer&Olbers (1989)
876      thermodynamics
877      - requires a little reorganization, which affects the testreport results
878        of isomip.htd (only 7 digits of cg2d agree) => update/modify experiment,
879        so that now the conservative form is tested
880      - add a few comments
881    o add missing cvs Header: or Name: in eesupp/*, pkg/* & verification/code*
882    o add a little bit of code to gad_os7mp_adv_?.F to help vectorization
883    o add new diagnostics to seaice: advective, diffusive fluxes (only for
884      multidim-advection, for scheme 2 they are not filled) and transports,
885      thermodynamic growth rates
886    o change units of EmPmR (inside the code, + within coupling interface)
887      from m/s to kg/m2/s (mass flux) but leave input file unchanged.
888      Affects results @ truncation level (cg2d match) and update output of
889       experiments: lab_sea(6), global_ocean.90x40x15(10),
890      global_ocean.cs32x15(11x3,10), natl_box(11), tutorial_global_oce_latlon(11)
891      + adjoint results: global_ocean_ebm(11) and lab_sea (12).
892      Coupled set-up: allow to restart from previous pickups (cpl_oldPickup=T).
893      Next: will retire convertEmP2rUnit (simply using mass2rUnit instead).
894    
895    checkpoint59h
896    o pkg/exf:
897      - improve vectorization by moving if-statement out of loops in
898        exf_mapfields, exf_radiation
899      - exf_bulkformulae.F: introduce 2D fields and vectorize code
900    o pkg/kpp: added the salt plume scheme (ALLOW_SALT_PLUME) to KPP package
901    o testreport:
902      - allow to test for Qnet & SeaIce monitor output; clean-up ALLOW_BULK_OFFLINE
903        monitor & update offline_exf_seaice exp. output.
904      - AD testing: pass/FAIL according to Grad. output accuracy (instead of Cost)
905    o pkg/seaice:
906      - bug fix in the evp solver: boundary conditions were affected be
907        masking of zMax/zMin (changes results)
908      - minor bug fix in boundary conditions in seaice_calc_strainrates
909        (changes results for no_slip)
910      - seaice_lsr.F: make interpolation of eta dependent on boundaries
911      - replace hardcoded lower limit for zeta (zMin) by runtime parameter
912      - add a test to lab_sea, that tests the Hibler and Bryan (1987) ocean
913        stress formulation and no-slip boundary conditions
914    o pkg/ptracers: Temporary fix for PTRACERS_useGMRedi & PTRACERS_useKPP
915      in gad_calc_rhs.F ; add few safety stops in initialisation phase.
916    o pkg/seaice: a first HSALT time stepping equation has been checked in
917    o pkg/seaice: replaced maskW with seaiceMaskU and maskS with seaiceMaskV
918      in seaice_lsr.F; this solves the pkg/seaice-pkg/obcs problem
919      without requiring DO-IF statements
920    o pkg/thsice:
921      use continuous power-law function for partition of energy between lateral
922      melting/freezing and thinning/thickening ; old code using step function
923      still available with #undef THSICE_FRACEN_POWERLAW
924      update output of exp: aim.5l_cs.thSI, global_ocean.cs32x15.icedyn & .thsice
925    o testreport: change AD testing : check against results/output_adm.txt
926      using same scripts as for forward test.
927    
928    checkpoint59g
929    o adjoint testing: in preparation for changing testreport:
930      - output format: cost and grad written on separated lines
931      - ad output results in directory "results" (instead of "results_ad")
932    o pkg/seaice: adding ice salinity HSALT as a prognostic variable
933    o pkg/seaice: changes for using pkg/seaice with pkg/obcs
934    o pkg/ecco: allow user defined cost function contributions
935    o testreport:
936      Allow to choose (per experiment) the list of tested output variables
937       and the main variable (used to issue a pass/FAIL ) ;
938      - for now, done by adding the specific list in file: [exp]/input/tr_checklist
939      - default is unchanged: >cg2d< , (T,S,U,V,5 tracers)_[min,max,mean,StD] ;
940      Also modify printing of summary:
941       a) ">" NN "<" indicates the "main" variable (used for pass/FAIL)
942       b) echo the list of tested variables in the individual summary.txt of
943          each experiment.
944    o new S/R GLOBAL_SUM_TILE to compute global sum independently of number of
945      threads and number of processes (with #define GLOBAL_SUM_SEND_RECV)
946      (but still depend on the tile decompostion of the domain).
947    o pkg/seaice: change a discretization detail to make the B-grid code
948      "more symmetric". This change is likely to remove all "ridges/leads" that
949      where quasi-aligned with the grid in B-grid solutions. It may also be
950      the solution to the stress coupling issues with the B-grid.
951    o each tested exp: add a "run" directory with a standard ".cvsignore" file ;
952      remove .cvsignore from input dir. (since testreport no longer run here).
953    o pkg/thsice:
954     - cleaning: move common block out of "THSICE_2DYN.h" (removed) to "THSICE_VARS.h"
955     - fix reshaping of sea-ice just after advection:
956       melt all the ice only if ice-volume is too small.
957     - re-visit lateral/thinning repartition of melting (modifs from May 04, 2007):
958       prevent lateral melting if sea-ice fraction is too close to iceMaskMin ;
959     and update experiment global_ocean.cs32x15.icedyn (+start from pickup files).
960    o external_forcing_surf : extend the use of salt_EvPrRn & temp_EvPrRn (fresh-water
961      tracer content) to linFS or no RealFreshWaterFlux ; default remains unchanged.
962    o define mass2rUnit & rUnit2mass as units conversion factor, used for surface
963      forcing. mass2rUnit: from mass per unit area [kg/m2] to r-coordinate unit
964      (z-coord: =1/rhoConst ; p-coord: =gravity) ; rUnit2mass is just the reverse;
965      and remove horiVertRatio (& recip_horiVertRatio). Affects truncation error
966      of exp. global_oce_in_p: 10 16 16 14 16 13 16 16 16 13 13 13 16 13 13 12 16
967      -> update output.txt
968    o pkg/cd_code: add brackets in multiple terms sum (S/R CD_CODE_SCHEME):
969     this affects truncation error: -> update output.txt of exp:
970      global_ocean.90x40x15 (fw&adm), lab_sea (fw&adm) & lab_sea.lsr,
971      ideal_2D_oce, isomip.htd, natl_box, tutorial_global_oce_latlon.
972    
973    checkpoint59f
974    o pkg/autodiff: zero_adj resets an ajoint variable to zero (in adjoint mode)
975    o pkg/ctrl: ctrl_bound  forces parameter corrections to stay in
976      a bounded range (in forward mode)
977    o pkg/ecco, ctrl, autodiff and mom_common:
978     internal parameter controls, completements of implementations
979    o add few EXCH S/R (UV_BGRID, UV_DGRID, SM) for B & D-Grid velocity & 2nd Moment Sxy.
980    o use UV_BGRID exch for dxV,dyU: for now, only with pkg/exch2 & forward ;
981      (not seem any difference in testing results).
982    o pkg/cd_code: use the right EXCH calls (for CS-grid); but problem remains
983       at face corners.
984    o pkg/generic_advdiff:
985     - in GAD.h, define as parameters (iMinAdvR,iMaxAdvR,jMinAdvR,jMaxAdvR)
986      loop range indices for computing vertical advection tendency
987      and do the calculation in the interior only (no overlap) ;
988      for now, only implemented for SOM advection (to save CPU time).
989     - add argument "withSigns" to S/R FILL_CS_CORNER_TR_RL (needed for SOM_xy moment)
990    o exch2 adjoint
991      First set of changes:
992      - add exch2 hand-written adjoint templates
993      - exch2 hand-written no longer use TAF-flag 'nownew_arg'
994        This will require cleanup in pkg/autodiff/*.F
995        (changed routines currently kept separate in verif. code/)
996      - Comment all relevant #ifndef ALLOW_AUTODIFF_TAMC
997        that used to hide exch2 or cubed-sphere specific code
998        (commented via 'cph-exch2')
999    o pkg/seaice
1000      - Close southern and western boundaries for UICE/VICE when useOBCS=.TRUE.
1001    o pkg/bulk_force: fix loading into Qsw of Short-Wave flux; and update
1002       output of global_ocean.cs32x15.thsice .
1003    
1004    checkpoint59e
1005    o exch2: new S/R that only use the cube-tracer (center-position) exchange:
1006      for B-grid vector (not yet tested) and C-grid vector (<- only used
1007      when option W2_USE_R1_ONLY in W2_OPTIONS.h is defined).
1008    o starting implementation of Duffy et al. (GRL 1999) salt plume scheme
1009      (#ifdef ALLOW_SALT_PLUME)
1010    o gather_2d/scatter_2d: removed halo regions
1011    o gmredi: add option (GM_taper_scheme='fm07') for Ferrari & McWilliams 2007
1012      scheme and the corresponding test case (under front_relax dir). For now,
1013      only available with Skew-flux form and not yet tested in realistic set-up.
1014      adjoint: store directives updated, but gradient checks deteriorated,
1015      so maybe GM/Redi adjoint is now broken.
1016    o seaice adjoint
1017      * add AREA, HEFF, HSNOW as control variable
1018        (should not change lab_sea results)
1019      * CTRL_OPTIONS.h needs new flag: CTRL_SET_OLD_MAXCVARS_40
1020    o pkg/seaice:
1021      * added computation of saltFlux in seaice_growth;
1022        For time being, sea ice salinity is assumed constant
1023        contribution of snow flooding to freshening of sea ice is neglected.
1024        SEAICE_salinity is set in SEAICE_PARM01 of data.seaice and it
1025        defaults to 0.0 in order to maintain backward compatibility.
1026        Typical values for SEAICE_salinity are 4 to 10 g/kg.
1027      * replaced dRf(1) with dRf(kSurface)*hFacC(kSurface) in seaice_growth.F
1028      * added SEAICE_availHeatFrac, which specifies fraction of surface level
1029        heat content used to melt or grow ice
1030      * commented out cap of HICE: it helps keep ice thinner
1031      * reintroduced cap of HEFF via MAX_HEFF and SEAICE_CAP_HEFF option
1032      * applied OBCS T/S mask to HEFFM sea ice mask
1033    
1034    checkpoint59d
1035    o standard name: {PKG}_DIAGNOSTICS_STATE to fill diagnostics array
1036     for {PKG} state variables, and called from DO_STATEVARS_DIAGS.
1037     (keep {PKG}_DIAGNOSTICS_FILL for non-state variables diagnostics)
1038    o pkg/gmredi (gmredi_readparms.F): add some missing "_d 0"
1039     and change default value of parameter "GM_Small_Number";
1040     update output of exp: lab_sea (x2), cfc_example, global_ocean.90x40x15,
1041       global_ocean.cs32x15 (x4), global_ocean_ebm, global_with_exf,  
1042       tutorial_global_oce_biogeo, tutorial_global_oce_latlon
1043    o pkg/ecco: cost function when applying pkg/smooth to controls
1044    o pkg/ctrl: add forcingPrecond run time parameter
1045    o pkg/seaice:
1046     - replace ZMIN=4.e8 with ZMIN=0. in dynsolver.F as in C-grid code
1047     - fix bug in metric terms of u-equation in LSR solver (implicit part),
1048       changes verification/lab_sea
1049     - rearrange implicit part of u-equation in LSR solver to make it easier to
1050       read, understand, and debug. This causes changes at the truncation level.
1051     - fix (serious) bug in the boundary conditions (sign error in the implicit
1052       part) of the LSR solver. Changes all LSR results.
1053     - fixed problem with HSNOW initialization to avoid thick snow when AREA
1054       is initilized with small values - does not change lab_sea results.
1055     - added HsnowFile initialization capability
1056    o pkg/smooth: addition to model/src and pkg/ctrl so allow
1057     initialization of pkg/smooth and application to control vector
1058    o pkg/seaice: fix another bug in the LSR no-slip boundary conditons
1059    o dependencies: pkg/profiles requires pkg/cal
1060    o pkg/profiles:
1061     - added option ALLOW_PROFILES_GENERICGRID
1062         -> pkg/profiles can thus be used with any grid (e.g. cs32x15) assuming
1063         that interpolation information (grid points and coefficients) is provided
1064         within the netcdf input files.
1065         -> sample matlab scripts can be found in MITgcm_contrib/gael
1066         that allow you to prepare netcdf input files.
1067     - also modified: cleaner include statements, cleaner error print statements,
1068       cleaner stops when error, and more tests of the netcdf input files consistency.
1069    o additional test (in global_ocean.cs32x15) using seaice+thsice pkgs.
1070    o pkg/seaice:
1071     - move seaice-diagnostics from seaice_do_diags to do_statevars_diags; this
1072       requires a new routine: seaice_diagnostics_fill.F
1073     - make sure that seaice does not move if not forced (pressure replacement
1074       method, Hibler and Ip, 1995), changes results
1075     - and new damping criterion for EVP solver according to Hunke, JCP, 2001
1076     - SEAICE_evpDampC = > 0. turns it on (615. is the recommended value).
1077       It is turned off by default (=-1.), because it changes the results.
1078     - make it possible to read AREA from a file, too.
1079    
1080    checkpoint59c
1081    o add S/R and diagnostics for oceanic mixed-layer depth
1082    o move GMRedi call after all vertical mixing schemes (including KPP)
1083    o pkg/thsice:
1084     - ensure iceMask > iceMaskMin : this problem appeared after May-04 modifs
1085      (melt only laterally if thin ice): update output of global_ocean.cs32x15.thsice
1086    o pkg/obcs:
1087     - bug fix for balance code
1088    o pkg/seaice:
1089      - allow values of SEAICE_elasticParm > 1
1090      - add new parameter SEAICE_evpTauRelax as an alternative
1091        to SEAICE_elasticParm
1092      - make lsr boundary conditions free slip (by default), changes result
1093      - add code for no slip boundary conditions for lsr
1094      - set minimum of zeta to zero (and not 4e8) (changes results)
1095      - add a cap on AREA after advecting AREA if seaice_growth is not called
1096    o change calculation of Visbeck K:
1097      - no longer depend on tapering scheme; instead, compute slope (limited
1098        by GM_maxSlope). this is equivalent to what was comuted before with
1099        clipping or linear tappering.
1100      - fix vertical averaging (wrong by 1/2 level)
1101      - leave the old version (but will not be maintained) within
1102        #ifdef OLD_VISBECK_CALC / #endif
1103      - update output of exp. ideal_2D_oce
1104    o change error catch in calc_r_star to improve vectorization
1105    o exf runoff and seaice: remove ALLOW_SEAICE from exf pkg files and
1106      add #define ALLOW_RUNOFF in SEAICE_OPTIONS.h (when not using exf).
1107    o adjoint:
1108      Re-organized adjoint checkpointing according to Matt Mazloff
1109      (but with modifs/completions/cleanups)
1110      Storing is now bundled into large arrays to optimized I/O
1111      (and second step in cleanup of the_main_loop)
1112    
1113    checkpoint59b
1114    o coupler (pkg/atm_ocn_coupler, pkg/ocn_compon_interf, pkg/atm2d):
1115      - export/import (between ocean & coupler) fields needed for ocean DIC.
1116    o pkg/seaice:
1117      - get rid of three more exchanges seaice_calc_viscosities (required
1118        different loop boundaries in seaice_lsr and seaice_ocean_stress)
1119      - bug fix in seaice_ocean_stress (update of lab_sea required)
1120      - reduce loop boundaries to necessary minimum also in seaice_evp
1121      - go back to the old way of computing deltaC/Z as the adjoint likes that
1122        better
1123    o Refresh of tutorial_global_oce_latlon (includes changing salinity-like
1124      passive tracer to an Age Tracer) + update output.txt
1125    o pkg/exf:
1126      - implement A-grid / C-grid selection for wind-stress input files.
1127      - clean-up exf_wind.F (remove us, use wspeed instead ; add wStress)
1128      for now, in exf_bulk_largeyeager04.F only :
1129      - change implementation for case where windspeed + 2. components wind-stress
1130        are read-in. AND use rhoConstFresh to convert evap.
1131    o pkg/seaice:
1132      - use correct EXCH_UV for wind-forcing (on A-grid).
1133      - change SEAICE_OPTIONS.h to limit the number of option combinations (regarding
1134        SEAICE_EXTERNAL_FORCING & SEAICE_EXTERNAL_FLUXES); add corresponding stops.
1135    o pkg/exf:
1136      - default EXF options are now set in EXF_OPTIONS.h (ifndef ALLOW_AUTODIFF_TAMC)
1137      EXF_INTERPOLATION:
1138      - merge global_with_exf/code version of exf_interp_read.F
1139        to the main code ;
1140      - Add new option: EXF_INTERP_USE_DYNALLOC to use Dynamical Allocation when
1141        reading the file ; Important: This options needs to be defined to recover
1142        previous code.
1143        otherwise, use fixed size array to read in (size=exf_interp_bufferSize).
1144      - no longer loose real*8 precision along the way when using exf_iprec=64.
1145    o pkg/seaice: rearrangement of common blocks (really needs more cleaning up)
1146      - change discretisation of evp-solver in order to avoid another exchange
1147        (changes lab_sea) and clean up a little
1148      - replace SQRT(MAX(deltaC,SEAICE_EPS)) by MAX(SQRT(deltaC),SEAICE_EPS)
1149        help the adjoint (this also changes the results slightly)
1150      - add a few "_d 0" where they had been missing in seaice_evp.F
1151      - cleaning up: remove unused seaice_calc_rhs.F
1152    o pkg/exf: some cleaning-up:
1153      - change various "constants" into runtime parameters
1154      - cleaned-up Large&Yeager04 routine which should eventually
1155        replace exf_bulkformulae.F (changed names of S/R and CPP)
1156        and merged various ALLOW_ATM_WIND options
1157     only used with thsice pkg (in thsice_get_exf.F):
1158      - implement fixed turbulent transfert Coeff over ice (as in Large&Yeager04)
1159        which are used when useStabilityFct_overIce=TRUE (= the default)
1160      - change default values of ice & snow emissivity and scale downward LW
1161        by ice & snow emissivity.
1162    o pkg/thsice:
1163     fix few little problems, in thsice_calc_thickn.F:
1164      - growth vertically (and not laterally) if iceFrac == iceMaskMax
1165      - melt only laterally if hIce < hThinIce (as the comments say)
1166      and in thsice_extend.F:
1167      - allow to form ice even when iceFrac == iceMaskMax (by increasing thickness)
1168      - start to form ice as soon as the minimum ice-volume is reachable.
1169     update output of test-exp: aim.5l_cs(thSI), global_ocean.cs32x15(thsice),
1170      and cpl_aim+ocn
1171    o pkg/kpp
1172     - move computation of surface related input fields to KPP into a new
1173       subroutine kpp_forcing_surf.F
1174     - remove wrong (within bi,bj loops) EXCH calls.
1175     - little cleaning (add argument myThid in last position, cvs header ...)
1176     - for now, fix conservation problem by exchanging KPPviscAz (may not
1177       be the best fix)
1178    o pkg/seaice
1179     - check for inconsistent evp parameter/cpp-flag combination
1180     - remove leftover errIO flat for obsolete name list error handling
1181    o OpenAD
1182     - changed verification/OpenAD to full baroclinic setup (including GM/Redi)
1183    
1184    checkpoint59a
1185    o pkg/seaice: some parameter clarifications and a little bit of clean up
1186    o pkg/thsice: rename run-time parameters:
1187       himin       -> hIceMin
1188       himin0      -> hThinIce
1189       hihig       -> hThickIce
1190       i0          -> i0swFrac
1191       transCoef   -> bMeltCoef
1192       frac_energy -> fracMelting
1193      add new parameters: hNewIceMax, fracFreezing, dhSnowLin
1194       with default values (for now) that do not change the results.
1195      remove old version of thsice vars advection in pkg/seaice.
1196    o in FFIELDS.h:
1197      - replace #ifndef ALLOW_EXF  by #ifndef EXCLUDE_FFIELDS_LOAD
1198      - make pLoad & sIceLoad always available (but still only used if
1199         ATMOSPHERIC_LOADING is #define).
1200    o pkg/kpp: replaced _KPP_RL with _RL
1201    o bug fixes for vertical diffusivity computations when both KPP and
1202        3D diffusivity arrays are used; pkg/kpp/kpp_calc_diff_s & _t.F
1203        are no longer updating the vertical diffusivity array
1204        (passed as argument) but are (re-) setting those arrays.
1205    o pkg/seaice: fix bug in evp solver, while doing that
1206      - change (improve?) discretization of stress computations for both
1207        cgrid-lsr and evp solver
1208      - add a new routine to compute strain rates
1209      - the above changes lab_sea results
1210      - add no slip conditions for evp solver (off by default), lsr-version
1211        may follow
1212      - fix exchange for shear at Z-points (does not change lab_sea)
1213      - retire SEAICEuseEVP, instead turn on EVP by setting SEAICE_deltaTevp
1214        (to force the user to pick a time step since there is not "safe" way
1215        of choosing it)
1216      - add principal stress diagnostics
1217      - rearrange fields for evp a little to avoid having to call a: too many
1218        exchanges and b: exchanges for stress trensor components which we do
1219        not have.
1220      - modify Hibler+Bryan (1987) stress coupling so that it reuses information
1221        of evp, complete rewrite for lsr case (latter is does not yet work
1222        in all cases)
1223    o pkg/kpp: add code to have mixing in shelf ice caverns
1224      - add myThid to all kpp routines (long overdue)
1225    
1226    checkpoint59
1227    o pkg/exf:
1228      - fix wind-stress location: defined on A-grid (if ALLOW_ATM_WIND &
1229        ALLOW_BULKFORMULAE or USE_EXF_INTERPOLATION), otherwise, defined on C-grid
1230      - move exf header files from lower_case.h to UPPER_CASE.h ;
1231        add missing cvs Header & Name
1232      - add adjoint routines and flow dirs for newly used exch_uv_agrid routines
1233      - add namelist param. selectStressGridPosition, exf_monFreq
1234      - retire many _CLIM routines, and remove data.exf_clim
1235        + params moved to data.exf
1236        + climsst, climsss now handled by exf_set_gen, i.e.
1237          climss?period=0 refers to constant field,
1238          climss?period=-12 to monthly forcing
1239      - split up namelists in data.exf
1240    o pkg/seaice:
1241      - remove seaice_exch and seaice_exch_uv
1242      - remove superfluous exchange of theta
1243      - add myThid to seaice_budget_ocean/ice
1244      - add new interface for atmospheric wind forcing (C-grid only)
1245        + new routine
1246        + two new field (taux, tauy for stress over ice)
1247        + removed one global field (DAIRN) for C-grid case only
1248    o pkg/thsise
1249      - 2nd set of modifs for thsice adjoint in conjunction with exf
1250    o enable runtime flag useEXF (useCAL is set to .T. if useEXF=.T.)
1251    
1252    checkpoint58y_post
1253    o Added capability for latitudinal dependence of Bryan and Lewis, 1979
1254      vertical diffusivity, similar to that in MOM4; turned on using
1255      #define ALLOW_BL79_LAT_VARY in CPP_OPTIONS.h and specified using
1256      diffKrBL79*, diffKrBLEQ*, and BL79LatVary in runtime data file.
1257    o Added capability for 3D specification of background vertical diffusion
1258      coefficient.  This is done by (i) #define ALLOW_3D_DIFFKR
1259      in CPP_OPTIONS.h and (ii) specifying file diffKrFile in runtime
1260      "data" file that contains the 3D vertical diffusivity coefficients.
1261    o ice dynamics (pkg/seaice) with thsice thermodynamics:
1262      - add code within pkg thsice to advect & diffuse sea-ice fields
1263      similar to (and will replace) what has been added in  seaice_advdiff.F,
1264      but: - conserving Mass, Heat & Salt.
1265           - better when using non-linear advection scheme (not yet fully tested)
1266           - can also be used in atmospheric set-up (for now, only the diffusion).
1267    
1268    checkpoint58x_post
1269    o IO option for global-file compact format:
1270      - add options when generating topology (utils/exch2/matlab-topology-generator)
1271      - add I/O capability (pkg/mdsio).
1272      - adapt utils/matlab/rdmds.m to read this format.
1273      for now long-line format not yet supported by pkg/mdsio (& exch2).
1274    o shelfice: add a few diagnostics
1275    
1276    checkpoint58w_post
1277    o p-coord. non-hydrostatic using reference profile for w <-> omega conversion:
1278      rVel2wUnit & wUnit2rVel are computed from reference profile Tref,Sref
1279      (and replace horiVertRatio in NH code).
1280      Update output of exp.: tutorial_global_oce_in_p (useNHMTerms !)
1281                         and tutorial_plume_on_slope (sensitive to truncation)
1282    o seaice: if ALLOW_ATM_WIND is undefined use wind stress
1283      directly to drive seaice model (C-grid only)
1284    o exf: when input wind-stress (#undef ALLOW_ATM_WIND):
1285     - reintroduce computation of wind from stress,
1286     - compute tau (in exf_bulkformulae.F) from windstress averaged to
1287       mass points to avoid tau = 0
1288     - fix serious bug: (1/3) in Fortran is not the same as (1./3.)
1289    o rdmnc.m: make it work with "global" files created with gluemnc
1290    o rdmnc.m : some improvements in dealing with singleton dimension
1291      (tested on all testreport mnc output files).
1292    o genmake2: disable pkg/profiles if netcdf test fails.
1293    o cpl_aim+ocn exp.: use consistent rhoConstFresh in Atm & Ocn; update output.
1294    o move call to cal_readparms up to make calendar parameters/variable available
1295      to all packages
1296    
1297    checkpoint58v_post
1298    o change EOS (from POLY3 to JMD95P) in global_ocean.90x45x15 to get
1299      useDynP_inEos_Zc tested.
1300    o pkg/exf: changes to properly interpolate/mask/scale initial fields
1301    o utils/matlab/cs_grid/read_cs: routines to speed up reading of CS510 fields
1302      and portions thereof.  See read_cs.txt for description and examples.
1303    o utils/matlab/cs_grid/bk_line: to compute transport through passages,
1304      add a script (grt_circ_bkl.m) to generate broken-line between 2 points,
1305      following the great-circle arc between those 2 points.
1306    o trap un-initialized variable with pathscale compiler on weddell.mit.edu
1307      (thanks to Constantinos): fix few problems and get (almost) all exp to pass.
1308    o 2nd-Order Moment Advection Scheme (Prather, 1986): first check-in
1309     - enable by setting #define GAD_ALLOW_SOM_ADVECT (in GAD_OPTIONS.h)
1310     - used without limiter (AdvScheme=80) or with Prather limiter (AdvScheme=81)
1311     - still needs work (not working with some options ; efficiency to improve)
1312       and serious testing.
1313     - use this scheme for temperature & salinity in 2 advection test exp.:
1314       advect_xy & advect_xz, respectively.
1315    
1316    checkpoint58u_post
1317    o new test-exp: fizhi-cs-32x32x40 (40 levels) to replace the 10 levels.
1318    o move call to INI_FORCING from PACKAGES_INIT_VARIABLES to INITIALISE_VARIA.
1319    o testreport: add option "-skipdir" to skip some test.
1320    o exf: when input wind-stress (#undef ALLOW_ATM_WIND), by-pass turbulent
1321      momentum calculation.
1322    o gad_advection: fix vertAdvecScheme (if different from advectionScheme)
1323    o some cleaning: usePickupBeforeC35 no longer supported ; remove this option.
1324      remove checkpoint.F and the_correction_step.F (no longer used);
1325      do the k loop inside CYCLE_TRACER (supposed to be more efficient).
1326    o add option (linFSConserveTr) to correct for tracer source/sink due to
1327      Linear Free surface
1328    o pkg/seaice: fix a bug in the flooding algorithm: turn off the snow machine
1329    o pkg/thsice: fix reading mnc-pickups
1330    
1331    checkpoint58t_post
1332    o pkg/diagnostics: fix multi-threaded output (when singleCpuIO=F)
1333    o pkg/mdsio:
1334     - clean-up mdsio_readfield.F & mdsio_writefield_new.F and
1335       move to new files: mdsio_read_field.F (S/R MDS_READ_FIELD) &
1336       mdsio_write_field.F (S/R MDS_WRITE_FIELD);
1337     - fix multi-threaded singleCpuIO option in MDS_WRITE_FIELD
1338     - collect old S/R  in one file: mdsio_rw_field.F (now just a call to
1339       either MDS_READ_FIELD or MDS_WRITE_FIELD )
1340     - new S/R (to replace MDSWRITEMETA), which allows to write more
1341       informations (variable names, time ...) to meta files.
1342     - modify rdmds.m to give back the meta file content.
1343    o pkg/diagnostics: change vertical interpolation to be safer, and more
1344       flexible (define p-levels to interpolate to in data.diagnostics);
1345      add argument to S/R DIAGNOSTICS_GET_POINTERS to catch the right
1346       diagnostic pointer.
1347    o pkg/seaice: more cleaning up of seaice_growth, added many comments
1348    o pkg/exf: put runoff0 and runoff1 into the appropriate common block
1349    o fix multi-category seaice:
1350     - change cpp flag SEAICE_MULTILEVEL to more meaningful name:
1351       SEAICE_MULTICATEGORY
1352     - fix short wave heat flux
1353    o pkg/seaice: change default (SEAICE_OPTIONS.h): use C-grid dynamics
1354       and allow to use EVP solver. Change forward lab_sea: test both EVP
1355       solver and LSR solver, and use C-grid dynamics (like lab_sea adjoint)
1356    o Initial check-in of lab_sea adjoint
1357      (very similar to natl_box_adjoint/code_seaice)
1358      * used C-grid and EVP solver
1359      * used KPP, GM/Redi
1360      * uses inAdExact=.TRUE.
1361      * gradient checks fail for both ADM and TLM
1362        due to sensitive snow melt code in seaice_grwoth (look for "JZ")
1363        f.d. gradients actually seem more problematic than ADM, TLM gradients;
1364        issue is related to forward mismatch between g77 an ifort
1365    o pkg/seaice: overhaul of thermodynamics
1366     - growth.F and groatb.F are replaced by new routine seaice_growth.F
1367     - budget.F is replaced by two new routines seaice_budget_ocean/ice.F
1368     - move a few global fields out of SEAICE.h into seaice_growth.F and
1369       make them 2D (FICE/QNETO/ ...)
1370     - remove FO (it is the same as QNETO)
1371     - introduce a few local fields to avoid modifying external fields such
1372       as atemp, etc.
1373    
1374    checkpoint58s_post
1375    o pkg/exf: moved exf_init_runoff.F to exf_init.F and exf_set_gen.F
1376      changed exf_set_gen.F so that
1377        genperiod=0 means input file is one time-constant field and
1378        genperiod=-12 means input file contains 12 monthly means
1379    o CG2D: use pre-computed solver main-diagonal (stored in common block);
1380      this affects truncation error ; generate new output file for exp. which
1381      fails: exp4(12d), fizhi-cs-aqualev20(12d), front_relax(10d),
1382        global_ocean.90x40x15(10d), global_ocean.cs32x15(10d).thsice(11d).viscA4(10d),
1383        ideal_2D_oce(10d), internal_wave(09d), isomip.htd(11d), matrix_example(07d),
1384        MLAdjust(4x11d,12d), natl_box(11d), rotating_tank(12d),
1385        tutorial_global_oce_in_p(10d), tutorial_plume_on_slope(11d),
1386        vermix(12d).ggl90(12d).my82(11d).opps(12d).pp81(11d)
1387    o start implementation of deep-atmosphere and anelastic formulation
1388    o verification: remove 2nd copy of input files and use script "prepare_run"
1389      to make a symbolic link to the 1rst copy (reduce downloaded size by ~81.M)
1390    o mom_common/vecinv/fluxform: fix a few initialisation isssues
1391    o profiles: fix for multithreaded case
1392    
1393    o diagnostics: rename few diags:
1394      s/'PRESSURE'/'RCENTER '/g
1395      s/'TICE    '/'oceFreez'/g
1396      s/'TAUX    '/'oceTAUX '/g
1397      s/'TAUY    '/'oceTAUY '/g
1398      s/'SWFLUX  '/'oceQsw  '/g
1399      s/DIFx/DFxE/g
1400      s/DIFy/DFyE/g
1401      and add few ocean-forcing diagnostics:
1402      atmPload, sIceLoad, oceQnet, oceFWflx, oceSflux, surForcT & surForcS
1403    o modifications to pkg/seaice/growth.F and budget.F, which change results of
1404      lab_sea experiment: HSNOW was sometimes treated as effective and sometimes
1405      as actual snow thickness.  It now refers everywhere to effective snow
1406      thickness, meaning that for non-zero AREA, actual thickness is HEFF/AREA.
1407    
1408    checkpoint58r_post
1409    o modifications to pkg/seaice/growth.F, which change results of
1410      lab_sea experiment: fixes pertain to melting snow over open water, to
1411      masking EVAP under sea ice, and to using the correct AREA variable for
1412      computations of EVAP, PRECIP, HSNOW, and GHEFF
1413    o add ability to read bathy, salt, and theta using MNC (off by def)
1414    o add flooding algorithm and advection of HSNOW for pkg/seaice;
1415      both are turned off by default and do no change any results
1416    o seaice advection with pkg/thsice: a step toward the use of non-linear
1417      advection scheme, but #ifdef or commented out for now (requires more EXCH).
1418    o use standard version of PTRACERS_INI_VARIA in tutorial_tracer_adjsens
1419      (identical results) and the standard version of EXTERNAL_FIELDS_LOAD
1420      in natl_box (affects results @ truncation level: update output.txt)
1421    o multi-threading and IO:
1422      - replace some call to MDSIO S/R by the corresponding READ/WRITE_FLD S/R.
1423      - remove most of BEGIN_MASTER/ END_MASTER around READ/WRITE_FLD S/R calls
1424        (needed to work with SingleCpuIO): tested in all verif. exp.
1425    o GAD: use simpler DST3 formulation as default (old version left within #ifdef)
1426      affects the results (but none of the verification test uses this scheme).
1427    o Adding some pkg/diagnostics capability to pkg/seaice
1428      (will certainly be subject to changes)
1429    o ctrl: adding new control variables:
1430      lwflux, lwdown, evap, snowprecip, apressure, runoff
1431    
1432    checkpoint58q_post
1433    o added CPP_EEOPTIONS.h flag DISABLE_MPI_READY_TO_RECEIVE.  Speeds up
1434      1/6-deg Southern Ocean configuration by 8% on IBM Datastar and
1435      high_res_cube configuration by 4% on Columbia.
1436  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);  o clean-up multi-threaded problems (reported by debugger tcheck on ACES);
1437    add (in global_with_exf/code) a version of EXF_INTERP_READ without    add (in global_with_exf/code) a version of EXF_INTERP_READ without
1438    dynamical allocation (seems to work in multi-threaded).    dynamical allocation (seems to work in multi-threaded).
# Line 1254  o add two new packages Line 2683  o add two new packages
2683    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2684    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2685      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2686      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2687  o add offline package  o add offline package
2688  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2689    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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