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revision 1.933 by dimitri, Tue Jan 8 10:39:30 2008 UTC revision 1.1118 by jmc, Mon Jun 8 04:33:33 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/mdsio (read/write field):
8     - tiled IO done in 1 piece (all levels at a time);
9     - multi-threaded: allow to read/write local (non-shared) array
10       (was already working with singleCpuIO ; now works also without);
11       => no longer needs barrier call after reading a file (added inside
12       mds_read/write field).
13     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
14     - move barrier calls outside gather/scatter_2d to mds_read/write_field
15    o pkg/obcs/exf
16      - exf_getffieldrec.F: add a few ". _d 0" and
17                            add code to catch the case fldperiod = 0.  
18      - obcs_precribe_read.F: change if statements so that they match
19                              the variable type (_RL)
20      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
21        exf_iprec) as part of namelist EXF_NML_01
22    o pkg/mdsio:
23      - read/write tiled (local) files: read/write 1-level tile chunk at a time
24        (instead of segment of length sNx); expected to speed up tiled IO.
25    o pkg/exch2:
26      - take buffer copy from/to array out of S/R exch2_send/recv into new
27        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
28        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
29      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
30      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
31        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
32        including Topology header file (and common blocks).
33      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
34        remove 2nd exch call in exch2_s3d_rx (no longer needed).
35      - document S/R arg. list (+ update some comments)
36    o pkg/seaice:
37      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
38        temperature and humidity over sea ice based on climatological values.
39      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
40        of LSR (this change is expected to change the results slightly because now
41        it uses slightly difference moduli from the second last LSR solution, but
42        that is more consistent with the stress computations; this part of the code
43        is not tested in the verification experiments)
44      - fix diagnostics for flux of ice in case of B-grid
45      - turn strain rates eij and press into global fields within global
46        common block in SEAICE.h for more straighforward diagnostics
47      - fix diagnostics for principal stress components, press, zeta, eta
48        to give something meaning full
49    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
50      new output (all 4 tests) using default rotationPeriod.
51    o pkg KPP:
52      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
53      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
54        and normal grid from 1 to Nr)
55    o Fix computations of L4rdt in mom_calc_visc.F
56    o eesupp:
57      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
58      should be called before a "stop" if we know that all process are going
59      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
60    
61    checkpoint61o
62    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
63    o model/src/ini_curvilinear_grid.F:
64       compute angleSin/CosC when they are not read from a file
65    o pkg/seaice:
66       add pseudo time stepping for LSOR
67    o pkg/exch2:
68       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
69    o pkg/seaice:
70       Adding separate sea ice albedo, drag coefficients, and HO in Southern
71       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
72    o SingleCpuIO:
73       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
74    o pkg/seaice:
75       put exchanged variable in (local) common block for MPI+Multi-Threads
76       to work (necessary with exch1, and for now with exch2 too).
77    o verification: to get more experiments tested with mpi, mth and mpi+mth,
78      change tiling of:
79       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
80       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
81      update output of exp:
82       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
83       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
84      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
85                       (note: output.txt generated on faulks using only 1 tile)
86    o eesupp & mdsio (SingleCpuIO):
87     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
88       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
89       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
90     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
91     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
92       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
93    o pkg/exch2:
94     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
95       read parameter file "data.exch2" if it exists; otherwise try default regular
96       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
97     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
98       with new code (not to be used, just as a backup solution).
99     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
100       in utils/exch2/input.
101    
102    checkpoint61n
103    o eesupp & mdsio (SingleCpuIO):
104      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
105        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
106        receive real*4 array (instead of real*8) to read/write 32.bit files.
107        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
108         and remove new mapping S/R)
109    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
110      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
111        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
112        when using exch2. Add S/R to map global io-buffer to global model array.
113      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
114    
115    checkpoint61m
116    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
117      and add 3 other S/R for other types (R4,R8,RS).
118      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
119    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
120     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
121     - reduce number of macro definitions (keep only those which are used);
122       can always call directly the corrresponding S/R if needed.
123     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
124       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
125     Fixed wrong type of arg in:
126       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
127       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
128     To fix: global_sum of var in common block is wrong (multi-threaded) in:
129       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
130     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
131    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
132      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
133    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
134    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
135      edges are closed (zero depth); might happen with "blank tiles";
136      for now, disabled if using OBCS.
137    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
138      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
139    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
140      to reduce length of 1.D array print in STDOUT.
141    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
142      + use 48 tiles (16x8): this will allow to test "blank tiles".
143    o start to test MPI + multi-threaded (change testreport to skip tests
144      where number of tiles do not match).
145    o genmake2: add option "-omp" to turn on Open-MP ;
146      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
147    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
148      and keep the original tile numbering. Note: compatible with old
149      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
150    
151    checkpoint61l
152    o Overlaps had been forgotten in calculating ijk keys : fixed
153    o fix cyrus makedepend for gcc 4.4
154    o experiment fizhi-cs-aqualev20:
155      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
156      and generate new output. Note: new output is much closer to the old
157      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
158      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
159    o pkg/fizhi:
160     - change to avoid indices going deliberately over array-bounds
161     - remove unnecessary MPI stuff
162     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
163     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
164       does not go over array-bounds and therefore returns reliable output.
165     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
166       this S/R has 4 output arguments, which are used inside "get_alarm";
167       when it is called with the same variable "ndum" in place of several
168       output arguments, this produces weird side effect inside "get_alarm"
169      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
170       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
171       address) and produces error.
172    o tools/gemake2: (March 27-29 2009)
173      with option "-mpi": link *_mpi files from "MODS" dir (this is what
174      testreport does).
175    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
176    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
177       update lab_sea.lsr & lab_sea.salt_plume results
178    o pkg/seaice:
179      Major overhaul of the LSOR solver: change discretization from original
180      finite differences to finite volume. The old routine is still in the
181      file seaice_lsr.F and can be turned on with the CPP-flag
182      SEAICE_OLD_AND_BAD_DISCRETIZATION
183      Along with this change, the discretization of the strain rates is changed.
184      The same flag turns on the old discretization in seaice_calc_strainrates.F
185      All verification experiments with seaice are affected (except for
186      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
187      results by setting the above flag.
188      Further changes involve changes in defaults:
189      - ALLOW_FLOODING is defined and turned on by default
190      - SEAICEadvSnow = .true. is now the default
191      - SEAICEadvSalt = .true. is now the default
192      - SEAICEadvAge  = .true. is now the default
193      - SEAICE_clipVelocities  = .false. is now the default
194                                         (as per J. Zhang's recommendation)
195      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
196        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
197      - seaice_growth: replace computation of UG by a simple copy from wspeed
198    
199    checkpoint61k
200    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
201      seaice_lsr: fixed a few metric terms,
202                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
203                  add more debugging diagnostics
204      seaice_evp: removed superfluous many metric terms of FV discretization
205                  of stress divergence
206                  affects lab_sea, lab_sea.hb87
207      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
208                  of stress divergence for non-evp solver
209                  (this part is not tested anywhere)
210      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
211                  they were effectively only half slip
212                  affects lab_sea.hb87
213      updated all relevant verification experiments (except lab_sea//output_adm.txt
214        which was left over, but fails at level 7 & 6)
215    
216    checkpoint61j
217    o pkg/seaice: turn a few hard wired parameters into run time parameters
218    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
219      time in seconds as promised by the usints in seaice_monitor and exf_monitor
220    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
221      that are not cubed-sphere grids
222    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
223    o pkg/ctrl:
224      fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
225    o non-hydrostatic (calc_gw.F):
226      fix viscA4 on CS-grid + fix diagnostics: Wm_Diss & Wm_Advec
227      update output of exp. global_ocean.cs32x15.viscA4
228    o remove backward compatibility for thetaMin,phiMin
229      (replaced by xgOrigin,ygOrigin on Jan 27, 2009)
230    o pkg/exf: fix a serious bug in exf_set_uv.F: do a rotation of the
231      interpolated wind field not only for curvilineargrid=.true., but also
232      for a rotated grid (rotateGrid=.true.)
233    o pkg/exf: add capability to bypass interpolation for runoff
234      by setting yet another CPP-flag
235    o eesupp/src, B-grid exchange:
236      add simple (6 tiles, non MPI) CS exch + standard interface S/R.
237    o autodiff
238      new CPP option ALLOW_TAMC_SINGLEPREC_COMLEV
239      allows to switch to single-prec common blocks;
240      corresponding switch occurs in tamc.h, integer isbyte
241      TAF store directivs "byte" and "kind" seem equivalent;
242      Most tamc.h have been updated correspondingly.
243    
244    checkpoint61i
245    o autodiff:
246      fix autodiff_sore/_restore indices for obcs
247      (spotted by I. Hoteit, M. Mazloff)
248    o pkg/autodiff, pkg/ctrl:
249      Add flag to reduce all tapelev I/O to single-prec.
250      In data.ctrl set
251        doSinglePrecTapelev = .TRUE.
252    o model/src/ini_curvilinear_grid.F, new grid-file format without EXCH2:
253      check in hack for SX8 compiler (for dxV, dyU); remove it afterwards.
254    o pkg/shelfice: fix bug with SHELFICEconserve flag, prepare for
255      real fresh water flux (not yet)
256    o pkg/mdsio & rw:
257     - add argument & option to S/R MDS_WRITEVEC_LOC (avoid Open/Close & write-meta)
258     - add simple interface S/R to MDS_WRITEVEC_LOC in pkg/rw: WRITE_GLVEC_RX.
259    o pkg/flt:
260     - replace FLT_INIT by 3-steps standard initialization S/R: readparms,
261       init_fixed & ini_varia.
262     - clean-up & simplify linear interpolation S/R:
263       move flt_bilinear.F -> flt_interp_linear.F ; add arg. myThid.
264     - fix some indices (mainly vertical index) ; add IMPLICIT NONE.
265     - more efficient I/O, using new options of MDS_WRITEVEC_LOC S/R.
266     - add vert. coordinate & horiz. indices to output files.
267     - change vertical position in initial condition, from index to depth [m].
268     - store horizontal (decimal) indices i,j in common block (instead of coord. x,y)
269       (easier to get to a curvilinear grid) ; delX,delY no longer used.
270    o pkg/ggl90: a few modifications:
271     - fix bottom boundary condition, and interpolation of KappaE
272       near top and bottom
273     - use same set of viscosity/diffusivity for TKE/momnetum/tracer
274     - add smoothing option as in Blanke and Delecluse (1993) (--> ALLOW_GGL90_SMOOTH)
275     - add a few options for mixing-length upper limit (--> mxlMaxFlag)  
276    o rename thetaMin,phiMin -> xgOrigin,ygOrigin
277      (maintain temporary backward compatibility, until next checkpoint)
278    
279    checkpoint61h
280    o pkg/diagnostics with "periodic averaging diagnostics":
281      fix S/R DIAGNOSTICS_COUNT ; hack diagnostics_out.F to get NetCDF output.
282    o pkg/my82: add missing "_d 0" ; update output of exp. vermix.my82
283    o pkg/obcs: fix loop ranges for balancing code
284    o pkg/flt:
285     - improve criteria for finding which tile owns a float.
286     - fix FLT_EXCH for case without MPI ; apply cyclic BC + fix also the MPI case.
287    o Add well-mixed CO2 box in aim_v23 (which includes changes in pkg
288      aim_compon_interf, ocn_compon_interf, gchem, and dic to get coupling
289      with ocean biogeo)
290    o pkg/flt:
291     - do some cleaning and fix the restart ;
292     - add output.txt in flt_example/results to get this pkg tested.
293    o genmake2: add an EXTENDED_SRC option and flag.
294       for now, cannot be turned on on command line (only through genmake_local)
295    o pkg/mdsio: read/write vector:
296     - singleCpuIO: fix RL/RS in MDSWRITEVECTOR by calling new S/R MDS_BUFFERtoRL/RS
297     - singleCpuIO=F: fix arrType & filePrec & _BYTESWAPIO in both MDSREADVECTOR
298       & MDSWRITEVECTOR by calling new S/R MDS_RD/WR_VEC_RL/RS.
299     - affects gradient of test-exp "bottom_ctrl_5x5" (not due to _BYTESWAPIO)
300      (drop to 4 digits matching for grad). But this test does not look very
301      reliable (was already failling on eddy, fc5, at 6.digits). Update output.
302    
303    checkpoint61g
304    o pkg/flt:
305      - move FLT_CPPOPTIONS.h to FLT_OPTIONS.h (standard name)
306       + make OPTIONS file more standard.
307      - rename S/R MDSREADVECTOR_FLT to FLT_MDSREADVECTOR (to mach src file name)
308      - fix _BYTESWAPIO CPP-Flag
309      - standard reading of file-parameter "data.flt"
310      - fix argument list of S/R FLT_RESTART
311      still need to fix _BYTESWAPIO in pkg/mdsio/mdsio_writevector.F
312    o pkg/obcs: fix a CPP-flag, bug reported by Jeff Blundell
313    o gather_2d.F/scatter_2d.F: suppress vectorisation on NEC SX in respond to
314      a still unfixed compiler/optimization bug
315    
316    checkpoint61f
317    o pkg/seaice, LSR solver: fix bug in GLOBAL_MAX calls ;
318      update results of global_ocean.cs32x15.icedyn test.
319    o move getcon.F from model/src to pkg/fizhi.
320    o pkg/exf: add parameter for extrapolation of temp up to the surface
321       and option to prevent negative evap (in bulk_largeyeager04 only).
322    o Prather Advection scheme: fix tracer conservation for divergent flow
323      (e.g., when using NonLin Free-Surface).
324    o kpp: retire KPPmld diagnostics --> use MXLDEPTH instead
325    o gmredi (Visbeck-variable-K):
326     - add more parameters to Visbeck-variable-K.
327     - use a 5 points average for dSigmaR in Visbeck-K calculation
328       (more "homogenous": same stencil and same weights as in dSigmaH)
329     - update output of ideal_2D_oce experiment.
330    o fix CPP-flag REAL4_IS_SLOW, when _RS expands into real*4
331      (#undef REAL4_IS_SLOW)
332     - pkg/mnc/mnc_cw_cvars.F: write _RS-grid variable as netcdf-real*4
333       coordinate variable
334     - pkg/monitor/monitor.F: call mon_printstats_rs for _RS variables
335       (surface forcing fields), removes some of the functionality
336     - model/src/write_grid.F: write _RS variables as RS-netcdf variables
337     - model/src/diags_oceanic_surf_flux.F: fix a few diagnostics, but
338       probably not all: copy _RS surface flux fields to RL field before
339       calling DIAGNOSTICS_FILL
340     - model/inc/CPP_EEMACROS.h: make the _EXCH_*_RS macros expand into
341       real*4 (CALL EXCH_*_RS) versions.
342     - tested in 2 experiments: inverted_barometer & solid-body.cs-32x32x1
343       (generate new output).
344    
345    checkpoint61e
346    o gmredi (Visbeck-variable-K):
347      - fix the "OLD_VISBECK_CALC" option + move the #undef to GMREDI_OPTIONS.h
348      - change computation of Visbeck-K where Slope > Smax :        
349        now: N*min(Slope,Smax) (similar to OLD_VISBECK_CALC with gkw91 taperFct)
350        previously was: M*sqrt(min(Slope,Smax)) ; update ideal_2D_oce output.
351    o bottom-drag in P-coord.: change units of bottomDragLinear & bottomDragQuadratic
352      to be the same as with Z-coord. (i.e., m/s & no-units respectively).
353    o calc_viscosity: fix index range (was wrong for CD-Scheme & explicit Visc)
354    o pkg gmredi, linear & fm07 tapering: put an upper limit on Slope^2 so that Kwz
355      does not become too large (to avoid precision problems in implicit-diffusion
356      solver); update ideal_2D_oce output.
357    o pkg ggl90:
358      - in ggl90_cal.F: compute only one set of visc/diff, used to
359        step forward TKE/T/S/momentum
360      - default value of GGL90viscMax/GGL90diffMax larger and equal (to
361        have Prandlt =1)
362    o gmredi (fm07):
363      - add lower limit on Transition layer thickness + lower limit on 1/lambda
364      - allow to set few more params from data.gmredi
365    o pkg ggl90:
366          - add missing sqrt(2) factor in computation of mixing length
367            scale in ggl90_calc.F
368            (see Eq. (2.35) in Blanke and Delecluse, JPO, 1993)
369    
370    checkpoint61d
371    o adjoint modifs
372      - adapt to new field rhoInSitu
373      - allow to revert from StoreDynVars2D, StoreDynVars3D
374        to individual fields
375        (switches AUTODIFF_USE_OLDSTORE_2D, AUTODIFF_USE_OLDSTORE_3D)
376    o store 3-D (in-situ) density in commom block (DYNVARS.h)
377     - save 1 rho computation.
378     - no longer modify T & S inland when using down_slope pkg.
379    o gad_som : allow to switch to SOM advection for T & S without corresponding
380      pickup files (using new S/R: MDS_CHECK4FILE).
381    o keep removing _BEGIN/_END_MASTER between MDSIO S/R call
382      (for useSingleCpuIO to work in multi-threaded)
383    o pkg/shelfice:
384     - disentangle parameters: retire shelfIceFile in data/PARM05 and substitute
385       with SHELFICEtopoFile in data.shelfice
386     - move code for reading ice shelf topography and modifying hFacC into separate
387       subroutines of the shelfice package
388     - separate initialisation of "fixed" and "variable" variables
389     - kTopC is not (yet) replaced by kSurfC, although this is possible
390    o fix broken diagnostic SIatmFW and changed the units from m/s to kg/m^2/s
391    o add initialisation of deepFac if using Pcoords (new S/R set_grid_factors)
392      and rename:
393      ini_phiref.F          --> set_ref_state.F  (+ set anelastic factors)
394      ini_reference_state.F --> load_ref_files.F (- set anelastic factors)
395    o change FIND_RHO_SCALAR : return rho (instead of rho - rhoConst)
396    
397    checkpoint61c
398    o add option ALLOW_ADDFLUID and run-time selector "selectAddFluid"
399      to add mass source/sink of fluid in the interior (3-D generalisation
400      of oceanic real-fresh water flux).
401    o pkg/monitor: fix recip_dr argument in mon_advcflw2 call (-> advcfl_W_hf_max)
402    o vermix test experiment: switch from LINEAR EOS to MDJWF (not tested before)
403    o new pkg: down_slope
404      density-driven downsloping flow parameterisation (Tellus, 1999, 412-430).
405      - presently, modify T & S inland (dwnslp_calc_rho.F).
406        can be avoided if rho was stored in common bloc and used in calc_phi_hyd.
407      - implementation for ocean in P-coords not tested.
408      - add secondary test to global_ocean.90x40x15 (input.dwnslp) to check this pkg.
409    o move kSurfC,kSurfW & kSurfS from SURFACE.h to GRID.h (next to kLowC)
410      (to facilitate conversion of oceanic pkg to p-coordinate).
411    o change FIND_RHO to FIND_RHO_2D :
412      pass arguments tFld & sFld as local (tile) 2D-arrays ; +fix EOS_CHECK.
413    o new pkg: cheapaml
414    
415    checkpoint61b
416    o exch2:
417      change index bounds in rx2_cube exchanges (new S/R: EXCH2_GET_UV_BOUNDS)
418      - no longer depend on the order sequence (N,S,E,W).
419      - 3rd exchange no longer needed (tested with 24 tiles).
420      - same modif to hand-written adjoint S/R (global_ocean.cs32x15: zero diff)
421      - exch_UV_A-grid readily available (but not yet tested).
422      comment out 3rd exch call and remove copy of V to U at SE & NE face-corners
423      (both are no longer needed) in exch_uv: no effect in forward run; but
424       get truncation error differences with adjoint exch.
425    o exch2:
426     - change index-bounds storage (moved from target to local tile,
427       more intuitive this way) ; rename/remove some variables.
428     - change utils/exch2/matlab-topology-generator & code_mods accordingly.
429    
430    checkpoint61a
431    o exch2/matlab-topology-generator:
432      fix bug in index bounds for N-S internal exchange (hard to tell if this
433      had any effect on the solution).
434    o pkg/mnc: small fix in mnc_handle_err: make sure that length of msgbuf
435      is exceeded
436    o testreport: modify syntax of awk, so that it works also with
437      awk, and not only with nawk and gawk
438    
439    checkpoint61
440    o autodiff
441      Change default for TAF usage by removing argument '-nonew_arg'
442      This changes TAF subroutine argument list (ordering of active var.)
443      Omission of this flag leads to incompatibility w.r.t. TAMC
444      To restore TAMC-compatibility, need following modifs:
445      * use adoptfile tools/adjoint_options/adjoint_tamc_compatibility
446      * use CPP option #define AUTODIFF_TAMC_COMPATIBILITY
447      Tested TAF version is 1.9.22
448      N.B.: exch2 hand-written adjoint code currently not TAMC compatible
449    
450    checkpoint60
451    --->>> This is the last checkpoint for which generating the adjoint
452    --->>> is done via the TAMC-compatibility TAF-flag "-nonewarg"
453    --->>> by default.
454    --->>> Future checkpoints will ommit this flag by default.
455    o pkg/generic_advdiff, os7mp: simplify and avoid division by zero.
456    o pkg/grdchk: Add gradient check to etan0 perturbations.
457    o pkg/exf: read ice area from file (#ifdef ALLOW_ICE_AREAMASK).
458    o pkg/autodiff: more flexibility in zeroadj.
459      model/src: modifying do_oceanic_phys.F accordingly.
460    o pkg/ctrl: Bounds for (kapgm,kapredi,eddypsi) parameter estimation.
461    o model/src and pkg/gmredi: GMREDI_WITH_STABLE_ADJOINT CPP option
462      special setup of gmredi for which the adjoint is stable
463      enough for parameter optimization.
464    o bridging the gap between eddy stress and GM.
465      -> eddyTau is replaced with eddyPsi (eddyTau = f x rho0 x eddyPsi)
466          along with a change in CPP option (now ALLOW_EDDYPSI).
467      -> when using GM w/ GM_AdvForm:
468          The total eddy streamfunction (Psi = eddyPsi + K x Slope)
469          is applied either in the tracer Eq. or in momentum Eq.
470          depending on data.gmredi (intro. GM_InMomAsStress).
471      -> ALLOW_EDDYPSI_CONTROL for estimation purpose.
472      The key modifications are in model/src/taueddy_external_forcing.F
473      pkg/gmredi/gmredi_calc_*F pkg/gmredi/gmredi_*transport.F
474    
475    checkpoint59r
476    o new S/R (pkg/mdsio/mdsio_facef_read.F) reading of sNx+1 x sNy+1 array
477      from per-face file (take S/R READSYMTILE_RS out of ini_curvilinear_grid.F);
478      fix option to read coriolis(@ cell-corner) from files with CS-grid.
479    o pkg/mnc: add some attributes to standard 1D-coordinate variables
480    o pkg/diagnostics: enforce missing_value attribute for scalar variables at
481      mass points, when using mnc for output
482      - add runtime parameter (missing_value, missing_value_int) to override
483        default (which is the value of getcon('UNDEF'))
484    o pkg/mnc: prepare mnc for the actual use of missing values with the
485      diagnostics package: small fix in mnc_cw_readwrite.template and more
486      initialisation of never used fields
487      - replace mnc_common.h and mnc_id_header.h with corresponding upper case
488      versions
489    o pkg/thsice/thsice_ini_vars.F added default initial values so that
490      thermodynamics sea ice solver does not blow up when some initial fields
491      are missing.
492    o move from external_forcing_surf.F to ini_forcing.F
493      the p-coord. hack consisting in using pLoad to set phi0surf ;
494      update output of tutorial_global_oce_in_p (affected @ truncation level).
495    o Freshen up a bit hs94.1x64x5, notably:
496      remove rotationPeriod and tRef=5*0. (adjoint only), and add
497      exactConserv=.TRUE.
498    o pkg/generic_advdiff:
499      change option GAD_ALLOW_SOM_ADVECT to GAD_ALLOW_TS_SOM_ADV which only
500      applies to files where Temperature & Salinity 2nd Order moments are used.
501    o pkg/ptracers: add second-order moment advection schemes (80 and 81);
502      this uses a dynamically allocated internal state data structure
503      (#define PTRACERS_ALLOW_DYN_STATE in PTRACERS_OPTIONS.h)
504      and requires a fortran 90 compiler
505    
506    checkpoint59q
507    o pkg/mom_vecinv: Add energy & enstrophy conserving scheme (selectVortScheme=3)
508       (from Sadourny, described by Burridge & Haseler, ECMWF Rep.4, 1977)
509    o Refresh tutorial_global_oce_biogeo, notably:
510      - change bathymetry (put back seamounts in ACC, use hFacs)
511      - change EOS (POLY3 --> JMD95Z)
512      - use Bryan-Lewis vertical diffusivity
513      - use multidimensional advection
514      - remove old virtual virtual in dic pkg, now done through ptracer pkg
515      - change a couple of parameters in dic pkg
516    o pkg/ctrl: change formula in adctrl_bound.F and add a parameter to ctrl_map_ini_gen.F
517    o pkg/obcs: change default to OBCSfixTopo = .true.,
518      - set OBCSfixTopo=.false. in exp4/input/data.obcs to reproduce old result
519      - replace "debugMode" with "debugLevel .GE. debLevB"
520    o implementation of TAF directives for gchem,cfc,dic
521    o remove "exp5" (replaced by tutorial_deep_convection).
522    o pkg/obcs: add code to fix topography gradients normal to open boundaries;
523      this requires computing the index fields OB_Jn/Js/Ie/Iw in obcs_readparms;
524      the code can be turned on by setting OBCSfixTopo = .true. in data.obcs
525      --> changes results in exp4, seaice_obcs
526    o tutorial_deep_convection :
527      update the set-up and increase resolution and domain size ; start
528      from pseudo initial conditions = output at t=120mn in order to see
529      something happening when running testreport.
530    o pkg/seaice: add os7mp as an advection scheme
531                  add check for advection schemes
532                  add a flag for restoring T and S underneath sea ice
533    o pkg/my82: add netcdf-support and diagnostics
534    o thsice pkg:
535      - Now hsMax limits snow height by turning it into ice following
536        flooding scheme (and now conserving energy)
537      - Slight rewriting of the formula in thsice_calc_thick.F
538      - Parameter rhowi eliminated to be replaced by floodFac = (rhosw-rhoi)/rhos
539      --> changes results of global_ocean.cs32x15.icedyn and global_ocean.cs32x15.thsice
540    
541    checkpoint59p
542    o gchem / dic / cfc :
543      - add useDIC, useCFC , read from "data.gchem" (& hold in GCHEM.h);
544      - add new parameter files: "data.dic" & "data.cfc" ;
545      - various re-arrangement in initialisation & header file ;
546      - fix tutorial_global_oce_biogeo for multi-threaded test.
547    o pkg/dic: test for "pickup_dic" file when restarting ;
548      if no pickup-file, can restart with a re-initialised pH (same as it did
549      before) providing pickupStrictlyMatch is set to False.
550    o change argument list of S/R PTRACERS_WRITE_PICKUP & MYPACKAGE_WRITE_PICKUP
551      + fix call to S/R GGL90_WRITE_PICKUP & DIC_WRITE_PICKUP
552    o add a "warning" (to Error msg file) when an Active Tracer is not using AB-2
553      and staggerTimeStep is off (needed for stability of Internal-wave dynamics).
554    o move out of PARAMS.h & data the last pieces of old-ptracer code: tauTr1ClimRelax,
555     & lambdaTr1ClimRelax ; put those 2 params in PTRACERS_PARAMS.h & data.ptracers
556       (note: not clear to me what lambdaTr1ClimRelax is still used for ...)
557    o pkg/mom_vecinv: - new parameter "selectVortScheme" to select which
558       scheme to use for vorticty-term ;
559     - compute upwindVorticity=T case within mom_vi_u/v_coriolis_c4.F
560       (with default selectVortScheme, return to original discretisation)
561     - remove weird combination (e.g.: upwindVorticity & highOrderVorticity)
562    o pkg/seaice: add a line to the summary to indicate grid type (B/C)
563    o in mom_calc_visc, fix average value of viscAh_W & viscA4_W next to the
564      bottom ; only used with variable horizontal viscosity and non-hydrostatic.
565      also fix diagnostics VISCAHW & VISCA4W.
566    
567    checkpoint59o
568    o dome/code/obcs_calc.F: avoid division by zero (detected using gfortran).
569    o change the loop ordering in most gad_*_adv_x.F to improve vectorization:
570      move a few statemens out the main loop into separate loops
571    o pkg/shelfice:
572      - sort out freshwater flux; convert freshwater fluxes to mass fluxes
573        (kg/m^2/s), does not break tests, because in verification/isomip,
574        rhoConstFresh=rhoConst (by accident)
575      - rearrange computation of tLoc, sLoc, pLoc to make code more efficient
576      - move S/R find_rho_scalar, pkg/ecco/sw_ptmp.F, pkg/ecco/sw_adtg.F into
577        new file model/src/seawater.F, so that they are available for all pkgs.
578      - convert potential temperature into in-situ temperature. This changes the
579        isomip tests => update tests
580    o add a flag writePickupAtEnd (default=true) to be able to suppress
581      writing a pickup at the last timestep
582    o tools/mpack-1.6 :
583      - disable automake (not working) and autoconf (not needed).
584      - update to version 1.6.4 which fix MD5 code on some 64 bits platforms
585        also cleaner with much less compilation warnings.
586    o pkg/profiles:
587      rename profiles_interp_mean_genericgrid as profiles_interp_mean_gg
588      (for "less than 32 characters name" compiler requirement)
589    o pkg/obcs and pkg/exf: added capability to specify seaice open boundary
590      conditions that have a different sampling frequency than S/T/U/V obcs
591    o pkg/diagnostics (stats-diags):
592      - fix global Min/Max in case 1 processor get only empty tiles
593    o genmake2: replace (4 times)
594         make genmake_tc_1.o >> genmake_warnings 2>&1
595      with
596         COMM="$CC $CFLAGS -c genmake_tc_1.c"
597         echo $COMM >> genmake_warnings
598         $COMM >> genmake_warnings 2>&1
599      to make genmake2 always see the value of CC as specified in the optfile.
600    o generic_advdiff: - prather advection scheme (SOM) coded for CS-grid.
601      - add diagnostics for 1srt & 2nd Order moments and sub-grid variance.
602      - modify verification advect_cs test to test SOM-advection on CS-grid.
603    o pkg/ctrl:
604      - Rewrite of ctrl_map_ini_ecco.F,
605        introducing a generic routine (ctrl_map_ini_gen.F).
606      - Modification of ctrl_bound/adctrl_bound handling control vector bounds.
607    
608    checkpoint59n
609    o pkg/diagnostics: for large number of diagnostics, store diagnostic mate
610      number in dedicate array "hdiag":
611      - new version of S/R DIAGNOSTICS_ADD2LIST : DIAGNOSTICS_ADDTOLIST
612        with 1 more argument (mate number); modify old version DIAGNOSTICS_ADD2LIST.
613      - many small changes (integer format) for large number of diagnostics
614      - start to use DIAGNOSTICS_ADDTOLIST (necessary for diagnostics with
615        a counter mate) in pkg diagnostics, ptracers, thsice & aim_v23.
616    o add parameter rotateGrid and Euler angles EulerPhi/Theta/Psi. For
617      usingSphericalGrid, this allows to define the rotated grid coordinates
618      via phiMin/thetaMin/dxSpacing/dySpacing, etc., but then re-compute the
619      geographical coordinates according to the inverse of the rotation defined
620      by the Euler angles, so that Coriolis parameter and online-interpolation by
621      exf works with the geographical coordinates on XC/YC/XG/YG.
622      Naturally, this feature does not work with all packages, so some
623      combinations are prohibited in config_summary (flt, flt_zonal, ecco,
624      profiles), because there the coordinates are assumed to be regular
625      spherical grid coordinates.
626    o pkg/gmredi,ctrl,ecco,autodiff,grdchk and model/src,inc:
627      - introduce isopycnal diffusion coefficient control.
628    o tools/adjoint_options:
629      - additional control vector components.
630    o pkg/mnc: have mnc create marginally meaning full coordinate variables
631      (that is the grid indices) if usingCurvilinearGrid and NOT EXCH2
632    o pkg/mypackage:
633      - add example of read/write pickup for state-var ;
634      - add entry points to the main code for state-vars diags & write-pickup.
635    o pkg/exf: rewrite of exf_getffieldrec.F to properly deal with year
636      transitions for useExfYearlyFields
637      - add new subroutine that determines the file to read from for
638        use*YearlyFields = .TRUE. and .FALSE.
639      - add a verification experiment to global_with_exf that tests
640        useExfYearlyFields with USE_EXF_INTERPOLATION defined
641    o pkg/obcs/exf: add useOBCSYearlyFields (=.FALSE.) to obcs with exf in
642      analogy to useExfYearlyFields; rearrange obcs_prescribe_read: two new
643      subroutines (which could be generated from a template, because they are
644      almost identical), for now they are included in obcs_prescribe_read.F for
645      simplicity
646    o pkg/exf:
647      - add a little more diagnostic to exf_interp_read (in analogy to
648        mds_read_field, can be turned off with debugLevel < debugLevA=1)
649      - improve vectorizability of exf_interp for TARGET_NEC_SX, makes code
650        ugly but fast by unrolling short inner loops, inserting a unroll=8
651        directive in routine lagran, and splitting a loop and making do while the
652        outermost loop (the latter requires the intoduction of index arrays)
653    o pkg/obcs: replace obcs_apply_area/heff/hsalt/hsnow with obcs_apply_seaice
654    o pkg/seaice: moved DIFFERENT_MULTIPLE from seaice_model to seaice_dynsolver
655      http://forge.csail.mit.edu/pipermail/mitgcm-devel/2008-January/003173.html
656    o verification/seaice_obcs: updated for restart test and latest options
657    o pkg/seaice: add a new flag SEAICEuseTEM to use a slightly different
658      ice rheology (so-called truncated ellipse, that gets rid of tensile stress);
659      for now this is only available for the C-grid code and also within
660      #ifdef SEAICE_ALLOW_TEM, because this option may slow down the EVP code
661    
662    checkpoint59m
663    o pkg/seaice: use different time constant for melting (SEAICE_gamma_t)
664      and freezing (SEAICE_gamma_t_frz) ice due to mixed layer temperature
665    o gad_som : fix flux output (& diagnostics) to have same units as other  
666      advection scheme fluxes (was previously multiplied by deltaT).  
667  o added verification/seaice_obcs both to test seaice open boundaries  o added verification/seaice_obcs both to test seaice open boundaries
668    and to provide an example matlab scrpt for generating them    and to provide an example matlab scrpt for generating them
669  o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume  o added verification/lab_sea/input.salt_plume for testing pkg/salt_plume
# Line 1936  o add two new packages Line 2596  o add two new packages
2596    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme    - my82 (Mellor and Yamada, 1982) level 2 turbulence closure scheme
2597    - these scheme operate in a similar manner as KPP (without ghat, of    - these scheme operate in a similar manner as KPP (without ghat, of
2598      course), however there is only one diffusivity that is used for both      course), however there is only one diffusivity that is used for both
2599      temperature and salinity (and passive tracers)ç      temperature and salinity (and passive tracers)
2600  o add offline package  o add offline package
2601  o add "verification/dic_example" which contains a dic-gchem-ptracer setup  o add "verification/dic_example" which contains a dic-gchem-ptracer setup
2602    provided by Stephanie Dutkiewicz    provided by Stephanie Dutkiewicz

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