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revision 1.921 by dimitri, Wed Dec 5 16:56:14 2007 UTC revision 1.1135 by jmc, Sun Jun 28 16:55:11 2009 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exch2:
8      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
9        (was already the case with AUTODIFF_EXCH2 defined)
10      - add bj in exch2 arrays and S/R.
11    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
12      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
13        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
14      - verification experiment natl_box.longstep
15    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
16      allow different versions of ifort (8 or 9) and different versions
17       of mpi (mpich or mpich2) to be used with the same optfile.
18      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
19       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
20    o pkg/seaice:
21      fix previous modif (3-level field removed) for old-pickup reading
22    
23    checkpoint61r
24    o pkg/seaice:
25     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
26      1. introduce fields for time step (N-1)
27      2. do not use levels 2 and 3 anymore (but keep them)
28      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
29         includes changes to pkg/thsice/thsice_get_velocity.F,
30         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
31         pkg/obcs/obcs_apply_uvice.F.
32     - completely remove code for leap-frog time stepping for second order
33       advection
34     - adjusted adjoint accordingly;
35       gradient checks have improved by an order of magnitude!
36    
37    checkpoint61q
38    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
39     - the boundary conditions along open boundaries are unclear, because the
40       associated masks are set to zero and are thus treated as closed when
41       applying the slip-boundary conditions.
42     - move initialisation of grid variables from seaice_init_varia to _fixed
43    o adding doc/diags_changes.txt
44    o model/src:
45      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
46       to avoid "_diags" naming if no relation to pkg/diagnostics.
47      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
48       file and only call PLOT_FIELD_XYZ if debugMode=T.
49      remove few PLOT_FIELD_XY calls outside initialisation.
50      remove few unnecessary BARRIER.
51    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
52      of salt_plume package in Southern Ocean
53    o pkg/thsice:
54     - fix hOceMxL in overlap (needed for sea-ice advection);
55       update output of experiment global_ocean.cs32x15.icedyn.
56    o pkg/seaice:
57     - make the (placeholder-)tracer IceAge a little more meaningful
58      by avoiding ridging of age due to convergent ice flow
59     - add diagnostics for surface temperature, atmospheric and oceanic
60       heat flux, and atmospheric and oceanic ice growth
61    
62    checkpoint61p
63    o eesupp (global_max & global_sum):
64     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
65     - remove starting & endding barrier (no longer needed)
66    o pkg/mdsio, writelocal:
67       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
68       (remove the STOP): uses shared buffer IO to store data from all threads
69       and then let master-thread write nThreads tiles.
70    o pkg/mdsio (read/write field):
71     - tiled IO done in 1 piece (all levels at a time);
72     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
73     - multi-threaded: allow to read/write local (non-shared) array
74       (was already working with singleCpuIO ; now works also without);
75       => no longer needs barrier call after reading a file (added inside
76       mds_read/write field).
77     - move barrier calls outside gather/scatter_2d to mds_read/write_field
78    o pkg/obcs/exf
79      - exf_getffieldrec.F: add a few ". _d 0" and
80                            add code to catch the case fldperiod = 0.  
81      - obcs_precribe_read.F: change if statements so that they match
82                              the variable type (_RL)
83      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
84        exf_iprec) as part of namelist EXF_NML_01
85    o pkg/mdsio:
86      - read/write tiled (local) files: read/write 1-level tile chunk at a time
87        (instead of segment of length sNx); expected to speed up tiled IO.
88    o pkg/exch2:
89      - take buffer copy from/to array out of S/R exch2_send/recv into new
90        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
91        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
92      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
93      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
94        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
95        including Topology header file (and common blocks).
96      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
97        remove 2nd exch call in exch2_s3d_rx (no longer needed).
98      - document S/R arg. list (+ update some comments)
99    o pkg/seaice:
100      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
101        temperature and humidity over sea ice based on climatological values.
102      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
103        of LSR (this change is expected to change the results slightly because now
104        it uses slightly difference moduli from the second last LSR solution, but
105        that is more consistent with the stress computations; this part of the code
106        is not tested in the verification experiments)
107      - fix diagnostics for flux of ice in case of B-grid
108      - turn strain rates eij and press into global fields within global
109        common block in SEAICE.h for more straighforward diagnostics
110      - fix diagnostics for principal stress components, press, zeta, eta
111        to give something meaning full
112    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
113      new output (all 4 tests) using default rotationPeriod.
114    o pkg KPP:
115      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
116      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
117        and normal grid from 1 to Nr)
118    o Fix computations of L4rdt in mom_calc_visc.F
119    o eesupp:
120      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
121      should be called before a "stop" if we know that all process are going
122      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
123    
124    checkpoint61o
125    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
126    o model/src/ini_curvilinear_grid.F:
127       compute angleSin/CosC when they are not read from a file
128    o pkg/seaice:
129       add pseudo time stepping for LSOR
130    o pkg/exch2:
131       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
132    o pkg/seaice:
133       Adding separate sea ice albedo, drag coefficients, and HO in Southern
134       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
135    o SingleCpuIO:
136       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
137    o pkg/seaice:
138       put exchanged variable in (local) common block for MPI+Multi-Threads
139       to work (necessary with exch1, and for now with exch2 too).
140    o verification: to get more experiments tested with mpi, mth and mpi+mth,
141      change tiling of:
142       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
143       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
144      update output of exp:
145       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
146       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
147      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
148                       (note: output.txt generated on faulks using only 1 tile)
149    o eesupp & mdsio (SingleCpuIO):
150     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
151       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
152       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
153     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
154     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
155       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
156    o pkg/exch2:
157     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
158       read parameter file "data.exch2" if it exists; otherwise try default regular
159       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
160     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
161       with new code (not to be used, just as a backup solution).
162     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
163       in utils/exch2/input.
164    
165    checkpoint61n
166    o eesupp & mdsio (SingleCpuIO):
167      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
168        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
169        receive real*4 array (instead of real*8) to read/write 32.bit files.
170        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
171         and remove new mapping S/R)
172    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
173      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
174        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
175        when using exch2. Add S/R to map global io-buffer to global model array.
176      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
177    
178    checkpoint61m
179    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
180      and add 3 other S/R for other types (R4,R8,RS).
181      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
182    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
183     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
184     - reduce number of macro definitions (keep only those which are used);
185       can always call directly the corrresponding S/R if needed.
186     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
187       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
188     Fixed wrong type of arg in:
189       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
190       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
191     To fix: global_sum of var in common block is wrong (multi-threaded) in:
192       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
193     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
194    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
195      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
196    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
197    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
198      edges are closed (zero depth); might happen with "blank tiles";
199      for now, disabled if using OBCS.
200    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
201      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
202    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
203      to reduce length of 1.D array print in STDOUT.
204    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
205      + use 48 tiles (16x8): this will allow to test "blank tiles".
206    o start to test MPI + multi-threaded (change testreport to skip tests
207      where number of tiles do not match).
208    o genmake2: add option "-omp" to turn on Open-MP ;
209      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
210    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
211      and keep the original tile numbering. Note: compatible with old
212      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
213    
214    checkpoint61l
215    o Overlaps had been forgotten in calculating ijk keys : fixed
216    o fix cyrus makedepend for gcc 4.4
217    o experiment fizhi-cs-aqualev20:
218      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
219      and generate new output. Note: new output is much closer to the old
220      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
221      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
222    o pkg/fizhi:
223     - change to avoid indices going deliberately over array-bounds
224     - remove unnecessary MPI stuff
225     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
226     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
227       does not go over array-bounds and therefore returns reliable output.
228     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
229       this S/R has 4 output arguments, which are used inside "get_alarm";
230       when it is called with the same variable "ndum" in place of several
231       output arguments, this produces weird side effect inside "get_alarm"
232      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
233       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
234       address) and produces error.
235    o tools/gemake2: (March 27-29 2009)
236      with option "-mpi": link *_mpi files from "MODS" dir (this is what
237      testreport does).
238    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
239    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
240       update lab_sea.lsr & lab_sea.salt_plume results
241    o pkg/seaice:
242      Major overhaul of the LSOR solver: change discretization from original
243      finite differences to finite volume. The old routine is still in the
244      file seaice_lsr.F and can be turned on with the CPP-flag
245      SEAICE_OLD_AND_BAD_DISCRETIZATION
246      Along with this change, the discretization of the strain rates is changed.
247      The same flag turns on the old discretization in seaice_calc_strainrates.F
248      All verification experiments with seaice are affected (except for
249      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
250      results by setting the above flag.
251      Further changes involve changes in defaults:
252      - ALLOW_FLOODING is defined and turned on by default
253      - SEAICEadvSnow = .true. is now the default
254      - SEAICEadvSalt = .true. is now the default
255      - SEAICEadvAge  = .true. is now the default
256      - SEAICE_clipVelocities  = .false. is now the default
257                                         (as per J. Zhang's recommendation)
258      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
259        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
260      - seaice_growth: replace computation of UG by a simple copy from wspeed
261    
262    checkpoint61k
263    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
264      seaice_lsr: fixed a few metric terms,
265                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
266                  add more debugging diagnostics
267      seaice_evp: removed superfluous many metric terms of FV discretization
268                  of stress divergence
269                  affects lab_sea, lab_sea.hb87
270      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
271                  of stress divergence for non-evp solver
272                  (this part is not tested anywhere)
273      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
274                  they were effectively only half slip
275                  affects lab_sea.hb87
276      updated all relevant verification experiments (except lab_sea//output_adm.txt
277        which was left over, but fails at level 7 & 6)
278    
279    checkpoint61j
280    o pkg/seaice: turn a few hard wired parameters into run time parameters
281    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
282      time in seconds as promised by the usints in seaice_monitor and exf_monitor
283    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
284      that are not cubed-sphere grids
285    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
286    o pkg/ctrl:
287      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
288    o non-hydrostatic (calc_gw.F):
289      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
290      update output of exp. global_ocean.cs32x15.viscA4
291    o remove backward compatibility for thetaMin,phiMin
292      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
293    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
294      interpolated wind field not only for curvilineargrid=.true., but also
295      for a rotated grid (rotateGrid=.true.)
296    o pkg/exf: add capability to bypass interpolation for runoff
297      by setting yet another CPP-flag
298    o eesupp/src, B-grid exchange:
299      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
300    o autodiff
301      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
302      allows to switch to single-prec common blocks;
303      corresponding switch occurs in tamc.h, integer isbyte
304      TAF store directivs "byte" and "kind" seem equivalent;
305      Most tamc.h have been updated correspondingly.
306    
307    checkpoint61i
308    o autodiff:
309      fix autodiff_sore/_restore indices for obcs
310      (spotted by I. Hoteit, M. Mazloff)
311    o pkg/autodiff, pkg/ctrl:
312      Add flag to reduce all tapelev I/O to single-prec.
313      In data.ctrl set
314        doSinglePrecTapelev = .TRUE.
315    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
316      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
317    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
318      real fresh water flux (not yet)
319    o pkg/mdsio & rw:
320     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
321     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
322    o pkg/flt:
323     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
324       init_fixed & ini_varia.
325     - clean-up & simplify linear interpolation S/R:
326       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
327     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
328     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
329     - add vert. coordinate & horiz. indices to output files.
330     - change vertical position in initial condition, from index to depth [m].
331     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
332       (easier to get to a curvilinear grid) ; delX,delY no longer used.
333    o pkg/ggl90: a few modifications:
334     - fix bottom boundary condition, and interpolation of KappaE
335       near top and bottom
336     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
337     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
338     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
339    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
340      (maintain temporary backward compatibility, until next checkpoint)
341    
342    checkpoint61h
343    o pkg/diagnostics with "periodic averaging diagnostics":
344      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
345    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
346    o pkg/obcs: fix loop ranges for balancing code
347    o pkg/flt:
348     - improve criteria for finding which tile owns a float.
349     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
350    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
351      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
352      with ocean biogeo)
353    o pkg/flt:
354     - do some cleaning and fix the restart ;
355     - add output.txt in flt_example/results to get this pkg tested.
356    o genmake2: add an EXTENDED_SRC option and flag.
357       for now, cannot be turned on on command line (only through genmake_local)
358    o pkg/mdsio: read/write vector:
359     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
360     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
361       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
362     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
363      (drop to 4 digits matching for grad). But this test does not look very
364      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
365    
366    checkpoint61g
367    o pkg/flt:
368      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
369       + make OPTIONS file more standard.
370      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
371      - fix _BYTESWAPIO CPP-Flag
372      - standard reading of file-parameter "data.flt"
373      - fix argument list of S/R FLT_RESTART
374      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
375    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
376    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
377      a still unfixed compiler/optimization bug
378    
379    checkpoint61f
380    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
381      update results of global_ocean.cs32x15.icedyn test.
382    o move getcon.F from model/src to pkg/fizhi.
383    o pkg/exf: add parameter for extrapolation of temp up to the surface
384       and option to prevent negative evap (in bulk_largeyeager04 only).
385    o Prather Advection scheme: fix tracer conservation for divergent flow
386      (e.g., when using NonLin Free-Surface).
387    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
388    o gmredi (Visbeck-variable-K):
389     - add more parameters to Visbeck-variable-K.
390     - use a 5 points average for dSigmaR in Visbeck-K calculation
391       (more "homogenous": same stencil and same weights as in dSigmaH)
392     - update output of ideal_2D_oce experiment.
393    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
394      (#undef REAL4_IS_SLOW)
395     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
396       coordinate variable
397     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
398       (surface forcing fields), removes some of the functionality
399     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
400     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
401       probably not all: copy _RS surface flux fields to RL field before
402       calling DIAGNOSTICS_FILL
403     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
404       real*4 (CALL EXCH_*_RS) versions.
405     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
406       (generate new output).
407    
408    checkpoint61e
409    o gmredi (Visbeck-variable-K):
410      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
411      - change computation of Visbeck-K where Slope > Smax :        
412        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
413        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
414    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
415      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
416    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
417    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
418      does not become too large (to avoid precision problems in implicit-diffusion
419      solver); update ideal_2D_oce output.
420    o pkg ggl90:
421      - in ggl90_cal.F: compute only one set of visc/diff, used to
422        step forward TKE/T/S/momentum
423      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
424        have Prandlt =1)
425    o gmredi (fm07):
426      - add lower limit on Transition layer thickness + lower limit on 1/lambda
427      - allow to set few more params from data.gmredi
428    o pkg ggl90:
429          - add missing sqrt(2) factor in computation of mixing length
430            scale in ggl90_calc.F
431            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
432    
433    checkpoint61d
434    o adjoint modifs
435      - adapt to new field rhoInSitu
436      - allow to revert from StoreDynVars2D, StoreDynVars3D
437        to individual fields
438        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
439    o store 3-D (in-situ) density in commom block (DYNVARS.h)
440     - save 1 rho computation.
441     - no longer modify T & S inland when using down_slope pkg.
442    o gad_som : allow to switch to SOM advection for T & S without corresponding
443      pickup files (using new S/R: MDS_CHECK4FILE).
444    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
445      (for useSingleCpuIO to work in multi-threaded)
446    o pkg/shelfice:
447     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
448       with SHELFICEtopoFile in data.shelfice
449     - move code for reading ice shelf topography and modifying hFacC into separate
450       subroutines of the shelfice package
451     - separate initialisation of "fixed" and "variable" variables
452     - kTopC is not (yet) replaced by kSurfC, although this is possible
453    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
454    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
455      and rename:
456      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
457      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
458    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
459    
460    checkpoint61c
461    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
462      to add mass source/sink of fluid in the interior (3-D generalisation
463      of oceanic real-fresh water flux).
464    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
465    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
466    o new pkg: down_slope
467      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
468      - presently, modify T & S inland (dwnslp_calc_rho.F).
469        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
470      - implementation for ocean in P-coords not tested.
471      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
472    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
473      (to facilitate conversion of oceanic pkg to p-coordinate).
474    o change FIND_RHO to FIND_RHO_2D :
475      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
476    o new pkg: cheapaml
477    
478    checkpoint61b
479    o exch2:
480      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
481      - no longer depend on the order sequence (N,S,E,W).
482      - 3rd exchange no longer needed (tested with 24 tiles).
483      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
484      - exch_UV_A-grid readily available (but not yet tested).
485      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
486      (both are no longer needed) in exch_uv: no effect in forward run; but
487       get truncation error differences with adjoint exch.
488    o exch2:
489     - change index-bounds storage (moved from target to local tile,
490       more intuitive this way) ; rename/remove some variables.
491     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
492    
493    checkpoint61a
494    o exch2/matlab-topology-generator:
495      fix bug in index bounds for N-S internal exchange (hard to tell if this
496      had any effect on the solution).
497    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
498      is exceeded
499    o testreport: modify syntax of awk, so that it works also with
500      awk, and not only with nawk and gawk
501    
502    checkpoint61
503    o autodiff
504      Change default for TAF usage by removing argument '-nonew_arg'
505      This changes TAF subroutine argument list (ordering of active var.)
506      Omission of this flag leads to incompatibility w.r.t. TAMC
507      To restore TAMC-compatibility, need following modifs:
508      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
509      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
510      Tested TAF version is 1.9.22
511      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
512    
513    checkpoint60
514    --->>> This is the last checkpoint for which generating the adjoint
515    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
516    --->>> by default.
517    --->>> Future checkpoints will ommit this flag by default.
518    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
519    o pkg/grdchk: Add gradient check to etan0 perturbations.
520    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
521    o pkg/autodiff: more flexibility in zeroadj.
522      model/src: modifying do_oceanic_phys.F accordingly.
523    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
524    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
525      special setup of gmredi for which the adjoint is stable
526      enough for parameter optimization.
527    o bridging the gap between eddy stress and GM.
528      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
529          along with a change in CPP option (now ALLOW_EDDYPSI).
530      -> when using GM w/ GM_AdvForm:
531          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
532          is applied either in the tracer Eq. or in momentum Eq.
533          depending on data.gmredi (intro. GM_InMomAsStress).
534      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
535      The key modifications are in model/src/taueddy_external_forcing.F
536      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
537    
538    checkpoint59r
539    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
540      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
541      fix option to read coriolis(@ cell-corner) from files with CS-grid.
542    o pkg/mnc: add some attributes to standard 1D-coordinate variables
543    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
544      mass points, when using mnc for output
545      - add runtime parameter (missing_value, missing_value_int) to override
546        default (which is the value of getcon('UNDEF'))
547    o pkg/mnc: prepare mnc for the actual use of missing values with the
548      diagnostics package: small fix in mnc_cw_readwrite.template and more
549      initialisation of never used fields
550      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
551      versions
552    o pkg/thsice/thsice_ini_vars.F added default initial values so that
553      thermodynamics sea ice solver does not blow up when some initial fields
554      are missing.
555    o move from external_forcing_surf.F to ini_forcing.F
556      the p-coord. hack consisting in using pLoad to set phi0surf ;
557      update output of tutorial_global_oce_in_p (affected @ truncation level).
558    o Freshen up a bit hs94.1x64x5, notably:
559      remove rotationPeriod and tRef=5*0. (adjoint only), and add
560      exactConserv=.TRUE.
561    o pkg/generic_advdiff:
562      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
563      applies to files where Temperature & Salinity 2nd Order moments are used.
564    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
565      this uses a dynamically allocated internal state data structure
566      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
567      and requires a fortran 90 compiler
568    
569    checkpoint59q
570    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
571       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
572    o Refresh tutorial_global_oce_biogeo, notably:
573      - change bathymetry (put back seamounts in ACC, use hFacs)
574      - change EOS (POLY3 --> JMD95Z)
575      - use Bryan-Lewis vertical diffusivity
576      - use multidimensional advection
577      - remove old virtual virtual in dic pkg, now done through ptracer pkg
578      - change a couple of parameters in dic pkg
579    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
580    o pkg/obcs: change default to OBCSfixTopo = .true.,
581      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
582      - replace "debugMode" with "debugLevel .GE. debLevB"
583    o implementation of TAF directives for gchem,cfc,dic
584    o remove "exp5" (replaced by tutorial_deep_convection).
585    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
586      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
587      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
588      --> changes results in exp4, seaice_obcs
589    o tutorial_deep_convection :
590      update the set-up and increase resolution and domain size ; start
591      from pseudo initial conditions = output at t=120mn in order to see
592      something happening when running testreport.
593    o pkg/seaice: add os7mp as an advection scheme
594                  add check for advection schemes
595                  add a flag for restoring T and S underneath sea ice
596    o pkg/my82: add netcdf-support and diagnostics
597    o thsice pkg:
598      - Now hsMax limits snow height by turning it into ice following
599        flooding scheme (and now conserving energy)
600      - Slight rewriting of the formula in thsice_calc_thick.F
601      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
602      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
603    
604    checkpoint59p
605    o gchem / dic / cfc :
606      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
607      - add new parameter files: "data.dic" & "data.cfc" ;
608      - various re-arrangement in initialisation & header file ;
609      - fix tutorial_global_oce_biogeo for multi-threaded test.
610    o pkg/dic: test for "pickup_dic" file when restarting ;
611      if no pickup-file, can restart with a re-initialised pH (same as it did
612      before) providing pickupStrictlyMatch is set to False.
613    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
614      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
615    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
616      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
617    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
618     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
619       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
620    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
621       scheme to use for vorticty-term ;
622     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
623       (with default selectVortScheme, return to original discretisation)
624     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
625    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
626    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
627      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
628      also fix diagnostics VISCAHW & VISCA4W.
629    
630    checkpoint59o
631    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
632    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
633      move a few statemens out the main loop into separate loops
634    o pkg/shelfice:
635      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
636        (kg/m^2/s), does not break tests, because in verification/isomip,
637        rhoConstFresh=rhoConst (by accident)
638      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
639      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
640        new file model/src/seawater.F, so that they are available for all pkgs.
641      - convert potential temperature into in-situ temperature. This changes the
642        isomip tests => update tests
643    o add a flag writePickupAtEnd (default=true) to be able to suppress
644      writing a pickup at the last timestep
645    o tools/mpack-1.6 :
646      - disable automake (not working) and autoconf (not needed).
647      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
648        also cleaner with much less compilation warnings.
649    o pkg/profiles:
650      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
651      (for "less than 32 characters name" compiler requirement)
652    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
653      conditions that have a different sampling frequency than S/T/U/V obcs
654    o pkg/diagnostics (stats-diags):
655      - fix global Min/Max in case 1 processor get only empty tiles
656    o genmake2: replace (4 times)
657         make genmake_tc_1.o >> genmake_warnings 2>&1
658      with
659         COMM="$CC $CFLAGS -c genmake_tc_1.c"
660         echo $COMM >> genmake_warnings
661         $COMM >> genmake_warnings 2>&1
662      to make genmake2 always see the value of CC as specified in the optfile.
663    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
664      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
665      - modify verification advect_cs test to test SOM-advection on CS-grid.
666    o pkg/ctrl:
667      - Rewrite of ctrl_map_ini_ecco.F,
668        introducing a generic routine (ctrl_map_ini_gen.F).
669      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
670    
671    checkpoint59n
672    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
673      number in dedicate array "hdiag":
674      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
675        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
676      - many small changes (integer format) for large number of diagnostics
677      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
678        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
679    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
680      usingSphericalGrid, this allows to define the rotated grid coordinates
681      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
682      geographical coordinates according to the inverse of the rotation defined
683      by the Euler angles, so that Coriolis parameter and online-interpolation by
684      exf works with the geographical coordinates on XC/YC/XG/YG.
685      Naturally, this feature does not work with all packages, so some
686      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
687      profiles), because there the coordinates are assumed to be regular
688      spherical grid coordinates.
689    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
690      - introduce isopycnal diffusion coefficient control.
691    o tools/adjoint_options:
692      - additional control vector components.
693    o pkg/mnc: have mnc create marginally meaning full coordinate variables
694      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
695    o pkg/mypackage:
696      - add example of read/write pickup for state-var ;
697      - add entry points to the main code for state-vars diags & write-pickup.
698    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
699      transitions for useExfYearlyFields
700      - add new subroutine that determines the file to read from for
701        use*YearlyFields = .TRUE. and .FALSE.
702      - add a verification experiment to global_with_exf that tests
703        useExfYearlyFields with USE_EXF_INTERPOLATION defined
704    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
705      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
706      subroutines (which could be generated from a template, because they are
707      almost identical), for now they are included in obcs_prescribe_read.F for
708      simplicity
709    o pkg/exf:
710      - add a little more diagnostic to exf_interp_read (in analogy to
711        mds_read_field, can be turned off with debugLevel < debugLevA=1)
712      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
713        ugly but fast by unrolling short inner loops, inserting a unroll=8
714        directive in routine lagran, and splitting a loop and making do while the
715        outermost loop (the latter requires the intoduction of index arrays)
716    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
717    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
718      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
719    o verification/seaice_obcs: updated for restart test and latest options
720    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
721      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
722      for now this is only available for the C-grid code and also within
723      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
724    
725    checkpoint59m
726    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
727      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
728    o gad_som : fix flux output (& diagnostics) to have same units as other  
729      advection scheme fluxes (was previously multiplied by deltaT).  
730    o added verification/seaice_obcs both to test seaice open boundaries
731      and to provide an example matlab scrpt for generating them
732    o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
733    o pkg/salt_plume: clean up salt_plume_frac.F to
734      remove redundancy in PlumeMethod 1 and 4
735    o pkg/kpp: added saltplume diagnostics
736    o pkg/obcs and pkg/seaice:
737      - do not set uice and vice to zero when OB*icefile are unspecified
738      - OBCS_SEAICE_AVOID_CONVERGENCE is undefined by default
739      - moved seaice tracer obcs after call to seaice_growth
740    o pkg/salt_plume: added various options for salt plume depth
741      criterion and for vertical distribution of the salt
742    
743    checkpoint59l
744    o pkg/ptracers: new version of ptracers pickup:
745      read meta file and write only fields which are needed to restart.
746      ( same logic as main pickup file ; also using pickupStrictlyMatch )
747    o pkg/seaice:
748      - add timescale for melting due to warm mixed layer as a means of
749        setting SEAICE_availHeatFrac more conveniently
750      - add a CPP-flag/runtime parameter check for flooding algorithm
751      - reformulated availHeat in seaice_growth.F to be independent of AREA
752    o change units attribute of EmPmR netcdf variables to kg/m^2/s to reflect recent
753      unit changes
754  o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint  o pkg/obcs: added OBCS_SEAICE_AVOID_CONVERGENCE constraint
755  o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC  o cg2d.F: add 3 compiler directives that speed up this routine by 30% on a NEC
756    SX vector computer.    SX vector computer.
# Line 12  o pkg/seaice: Line 759  o pkg/seaice:
759      seaice forcing fields can now be read only through pkg/exf      seaice forcing fields can now be read only through pkg/exf
760    - removed some unused halos    - removed some unused halos
761  o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP  o no longer write pickup from THE_MODEL_MAIN but always from FORWARD_STEP
762  o pkg/exf: added CPP option EXF_SUBTRACT_UVVEL_FROM_UVWIND for subtracting  o pkg/exf: added useRelativeWind EXF_PARAM.h option for subtracting U/VVEL
763    UVEL and VVEL from UWIND and VWIND prior to applying bulk formulae.    or U/VICE from U/VWIND before computing U/VSTRESS
764    
765  checkpoint59k  checkpoint59k
766  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between  o pkg/seaice: ICE2WATR=SEAICE_rhoIce/rhoConst for consistency between
767    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.    dynamics and thermodynamics. Set ICE2WATR=0.92 to reproduce older results.
768  o fix un-initialised variable problem (in mom_vecinv & shap_filt):  o fix un-initialised variable problem (in mom_vecinv & shap_filt):
769    all experiments pass when compile with un-initilised var. checking option.    all experiments pass when compile with un-initialised var. checking option.
770  o added pkg/salt_plume  o added pkg/salt_plume
771  o script to test restart (for now, in MITgcm_contrib/jmc_script)  o script to test restart (for now, in MITgcm_contrib/jmc_script)
772  o pkg/seaice: new read/write pickup version.  o pkg/seaice: new read/write pickup version.
# Line 1912  o add two new packages Line 2659  o add two new packages
2659    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2660    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2661      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2662      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2663  o add offline package  o add offline package
2664  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2665    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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