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revision 1.1305 by jmc, Sun Sep 26 13:48:19 2010 UTC revision 1.1362 by mlosch, Wed Jan 12 09:24:33 2011 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/seaice
8      seaice_lsr: move stress-divergence computations out of outer pseudo-
9      timestepping loop  
10    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
11      up, so that the calls of the ctrl_* subroutines are really at the end
12      of the routine.
13    
14    checkpoint62q (2010/12/29)
15    o model/src:
16      - check horizontal grid-spacing for unset or zero/negative values.
17      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
18    o pkg/flt:
19      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
20      - precision of input and output files set according to readBinaryPrec
21        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
22      - initial float position from tiled file was not converted to index space
23        (looks like a bug): fixed to make it similar to initial pos. global file.
24    o global_ocean.cs32x15:
25       change SIZE.h of AD set-up to get same tiling as with MPI.
26       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
27    o model/src:
28       add flag to control printing of domain fields (bathymetry, hFac ...) in
29       ini_mask_etc (call to plot_fieds_xy*).
30    o pkg/thsice:
31       if useEXF, some forcing fields are not valid in overlap: fixed by computing
32       over the interior only + apply EXCH at the end (like with SEAICE advection).
33    o pkg/mdsio:
34      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
35        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
36      - change barrier call for safe multi-threads access to 3-D shared buffer.
37      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
38      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
39        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
40    o pkg/flt:
41      - add fourth-order Runge-Kutta integration
42      - add basic exch2 support (only 1 facet supported so far!)
43    o pkg/mdsio+rw:
44      new S/R to read local (or tile independent) vector (read counterpart of
45       mds_writevec_loc, and front-end write_glvec_rl/rs).
46    o global_ocean.cs32x15: additional input_ad.seaice experiment
47        that uses pkg/seaice rather than pkg/thsice.
48        (using multidim advection for seaice)
49    o towards more F95 syntax for array specification in namelist:
50      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
51        of all verification experiments.
52           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
53          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
54      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
55    o global_ocean.cs32x15: additional input.seaice experiment
56        that uses pkg/seaice rather than pkg/thsice.
57    
58    checkpoint62p (2010/12/17)
59    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
60        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
61    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
62        allow for use of multim. advection in seaice adjoint.
63    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
64      - first attempt to close budgets by taking into account the freshwater
65        flux implied by the sublimation of snow and ice. So far only the
66        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
67        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
68    o eesupp/src:
69      new S/R with new option (NML_EXTENDED_F77) to change array specification
70      from F95 standard to commonly accepted extended F77 form.
71      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
72      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
73      for less tolerant f77 compiler (e.g., pgf77, g77).
74    o globalFiles:
75      commented out in parameter file "data" since it's not safe with MPI
76      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
77      in this case); no longer commented out in restart test (tst_2+2).
78    o add adTapeDir to specify a special directory where adjoint tapes are
79      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
80      and cannot be used together with mdsioLocalDir.
81    o nesting pkgs:
82      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
83      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
84      - add parameter files + utils dir + output from short run on beagle.
85    o pkg/seaice:
86        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
87    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
88      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
89    
90    checkpoint62o (2010/11/25)
91    o pkg/exf:
92      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
93    o pkg/seaice:
94      - seaice_ocean_stress: split a loop for better vectorization of the
95        adjoint code
96      - seaice_growth.F: fix bug in conservation of freshwater connected to
97        capping of heff, put contribution into d_HEFFbyNEG
98      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
99        by something more sensible (parameters that are what their name implies)
100      - change some defaults, so that by default exf-parameters are used for
101        things like rhoAir, cpAir,latent/sensible heat parameters, in order
102        to reproduce the old results, many data.seaice now contain funny values
103        for cpAir and latent heat of sublimation
104    o packages_readparms.F: move exf_readparms up in line so that
105        exf-parameters are visible for other packages (e.g. seaice)
106    o debugMode & debugLevel=2:
107      - differentiate between debugMode & debugLevel=2:
108        debugMode: controls printing of debug messages (sequence of S/R calls).
109        debugLevel: controls printing of algorithm intermediate results and stats.
110      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
111        => allows to print debug-stats without all sequence of call messages.
112      - switch control of debug print from debugLevel to debugMode in many S/R.
113    o pkg/obcs (obcs-sponge):
114        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
115        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
116    o pkg/generic_advdiff:
117      - record overlap minimum size for each advection scheme;
118      - refine criteria on overlap minimum size;
119      - check and stop (in gad_check) if overlap size is too small.
120    o pkg/obcs:
121      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
122        once, in ptracers_implicit.F)
123      - with seaice: remove test on empty file name in obcs_apply_seaice (always
124        apply OB values when tile has OB)
125    o model/src, coriolis setting:
126      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
127        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
128        files (selectCoriMap=3) with any grid.
129      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
130    o pkg/seaice/seaice_growth.F:
131        a few cosmetic changes that reduce the number of lines of code
132    o pkg/obcs: add boundary conditions following Stevens (1990)
133      - the code follows old MOM/NAOSIM code
134      - so far it is only implemented for the eastern and western boundaries
135        and NOT for pTracers
136    o pkg/rbcs:
137      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
138        beginning of the first rbcs forcing period.
139      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
140        offline package, i.e., one file per time, labeled by iteration number;
141        deltaTrbcs sets the timestep with which the data was generated;
142        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
143      - rbcsForcingCycle=0 makes forcing non-cyclic.
144      - make arithmetic safe for negative times and odd forcing periods.
145    
146    checkpoint62n (2010/11/09)
147    o pkg/seaice:
148        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
149    o pkg/obcs:
150       New S/R to copy tracer value from the OB location to narrow band region
151        (width = same as overlap) beyond the OB: preserve OB value (needed for
152        high-order scheme) which were overwritten by EXCH call if in overlap
153        region. Applied to theta, salt, ptracer and advected seaice variables.
154       With seaice: use maskInC in similar way as in gad_advection.F,
155        in seaice_advection.F and advect.F.
156       Update output of experiment seaice_obcs and change exp4 to test OBCS with
157        4th order Adv.Scheme. for pasive salt and ptracer.
158    o tools/genmake2:
159      - when looking for an optfile (not specified), only search for Fortran compiler
160        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
161      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
162        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
163      - set default for CPP to "cpp -traditional -P" (was the case without specifying
164        an optfile, but otherwise default was just "cpp".
165      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
166      - when "CC" is not set in the optfile, look for possible C compiler
167        (instead of just setting CC=cc)
168      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
169        => add a ".F" to ".o" rule for source files with no "#include" (such as
170           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
171      - move gfortran before g77 in list of possible Fortran compiler (consistent
172        with reference compiler switch from g77 to gfortran)
173    o pkg/seaice:
174      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
175        seaice_check that stops the model, when the CPP flag is used.
176      o seaice_growth.F: make capping of ice volume conserving by returning the
177        capped ice as freshwater to EmPmR. This does not change the verification
178        experiments but will change runs where the capping is acutally active
179    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
180      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
181         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
182         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
183    o tools/genmake2:
184      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
185      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
186      - clean previous genmake log files before anything else.
187      - change Makefile to remove testreport log files (*.tr_log) and genmake log
188        files only with "CLEAN" target (instead of "Clean");
189    o pkg/generic_advdiff:
190      Change OBCS in multiDim advection (gad_advection.F):
191       Use maskInC to prevent intermediate update of tracer-field in OB regions,
192       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
193       which were applying future time-step OB values.
194      This way, all explicit calculations use current-time-step OB values
195       (simpler and more consistent).
196      Affects results when set-up uses time-varying OBC and multi-dim advection;
197       update output of experiment seaice_obcs.
198    o pkg/seaice:
199      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
200       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
201         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
202      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
203       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
204       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
205    o pkg aim (2010/10/26):
206      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
207        formulation with obliquity, eccentricity, ... as run-time parameters,
208      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
209        upward shortwave radition at the surface (all-sky and clear-sky).
210    o pkg/obcs:
211      - writing sections with globalFiles=T does not work: switch to tiled-files
212        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
213      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
214      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
215    
216    checkpoint62m (2010/10/21)
217    o pkg/seaice: vectorize seaice_solve4temp.F
218      - move iterations loops outside of i/j-loops
219      - requires 2D arrays for TB and effConduct
220      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
221        modified in this routine
222      - a little bit of clean up, adjusting indentation, etc.
223      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
224        performance and '**TWO' by '**2' (because TWO is a float),
225        replaced ONE, ZERO
226    o eesupp/src:
227       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
228    o pkg/seaice/seaice_growth.F
229      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
230      merging process. The merged routine has two branches, and one activates the 'evolution'
231      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
232      In summary, here is what the '10/10 revision' did consist of
233        part 1: seaice_growth.F revisions 1.71 to 1.75
234          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
235            The emphasis here was on improving readability (e.g. by trying to use meaningful
236            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
237        part 1.5:
238          - revising the lab_sea experiment to make it a more useful (i.e. stable
239            and representative of an actual model run). This was done by generating a
240            (winter) pickup to start from, switching back the main experiment dynamic
241            solver from evp to lsr, having one of the experiments use the free drift solution.
242        part 2: seaice_growth.F revisions 1.76 to 1.85
243          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
244          - Sorting out the various fields units and sign (set early on and reset at the end)
245            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
246            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
247          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
248            and simplifying logical expressions to further improve readibility.
249        part 3: seaice_growth.F revisions 1.86 to 1.89
250          - Re-organize the blocks of code more logically.
251          - Merging the '_if.F' pieces that add something new.
252    o pkg/thsice:
253      - vectorize thsice_solve4temp and thsice_get_exf.
254        Problem: thsice_solve4temp has an unvectorizable statement that
255        might also be problematic for TAF
256      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
257        does not change the verifcation experiment, but will change all
258        experiments that have this flag undefined (not tested in verification);
259        a little reorganization to save a few 2D fields and recomputations
260      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
261      - 2nd step:  fix some store dirs
262        o seems to work somewhat, i.e. using ifort but not g77
263        o likely cause are incomplete init. or recomputation
264        o start verification/global_ocean.cs32x15/input_ad.thsice
265    o pkg/obcs: add support for exch2
266      - the position of the boundary and prescribed values are specified using
267        a global domain with exch2 facets stacked
268        - in x for N,S boundaries (like W2_mapIO=-1)
269        - in y for E,W boundaries (so E,W boundaries do not overlap)
270    o pkg/mdsio: add support for writing global sections with exch2
271        file layout is as for obcs described above:
272        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
273        - for y-z sections, facets are stacked in y
274    o pkg/thsice:
275       - change a few routines for better vectorization: thsice_albedo.F,
276         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
277         not affected, but in particular the latter routine has changed
278         dramatically (not necessarily easier to read now).
279       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
280       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
281    o verification/lab_sea:
282      - overhaul of the forward model experiments. The main motivation
283        for this revision is that lab_sea has proven quite fragile (when
284        changing the sea-ice code, and switching platforms) to a point
285        when failures were very hard to attribute to specific code problems.
286      - the suspected reason for this fragility is noise amplification by evp so,
287        to start with, we decided to replace evp with lsr in the main experiment.
288      - the input.lsr experiment thus became obsolete and was removed.
289      - it was replaced with the input.fd experiment that uses an
290        analytical "free drift" solution as the ice velocity field.
291      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
292        will hopefully allow us to discriminate problems due to dynamic solvers
293        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
294        us to test additional options, along with the salt plume package.
295      - Finally a pickup was generated (at the end of a one year run) to
296        make the tests more representative of an actual model run. Previously
297        the tests starting point was a 1m thickness of ice everywhere.
298    o pkg/seaice:
299      - introducing S\R seaice_freedrift.F that compute the
300        analytical solution to an approximate ice momentum
301        equation (i.e. the simple stress/coriolis balance).
302      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
303        of the free drift velocity field, and enable its use.
304        To actually use the free drift solution as the model ice
305        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
306    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
307    
308    checkpoint62l (2010/10/04)
309  o pkg/seaice:  o pkg/seaice:
310    -fix the USE_ORIGINAL_SBI version (for variable freezing point);    -fix the USE_ORIGINAL_SBI version (for variable freezing point);
311    -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new    -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
# Line 321  o tools/build_options: Line 623  o tools/build_options:
623      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
624  o pkg/ecco  o pkg/ecco
625    - allow user defined cost function contributions    - allow user defined cost function contributions
626          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
627          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
628    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
629        the two options are complementary.        the two options are complementary.
630  o pkg/smooth  o pkg/smooth

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