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revision 1.1290 by gforget, Fri Aug 6 18:45:41 2010 UTC revision 1.1340 by jmc, Wed Nov 24 16:07:34 2010 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/exf:
8      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
9    o pkg/seaice:
10      - seaice_ocean_stress: split a loop for better vectorization of the
11        adjoint code
12      - seaice_growth.F: fix bug in conservation of freshwater connected to
13        capping of heff, put contribution into d_HEFFbyNEG
14      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
15        by something more sensible (parameters that are what their name implies)
16      - change some defaults, so that by default exf-parameters are used for
17        things like rhoAir, cpAir,latent/sensible heat parameters, in order
18        to reproduce the old results, many data.seaice now contain funny values
19        for cpAir and latent heat of sublimation
20    o packages_readparms.F: move exf_readparms up in line so that
21        exf-parameters are visible for other packages (e.g. seaice)
22    o debugMode & debugLevel=2:
23      - differentiate between debugMode & debugLevel=2:
24        debugMode: controls printing of debug messages (sequence of S/R calls).
25        debugLevel: controls printing of algorithm intermediate results and stats.
26      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
27        => allows to print debug-stats without all sequence of call messages.
28      - switch control of debug print from debugLevel to debugMode in many S/R.
29    o pkg/obcs (obcs-sponge):
30        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
31        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
32    o pkg/generic_advdiff:
33      - record overlap minimum size for each advection scheme;
34      - refine criteria on overlap minimum size;
35      - check and stop (in gad_check) if overlap size is too small.
36    o pkg/obcs:
37      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
38        once, in ptracers_implicit.F)
39      - with seaice: remove test on empty file name in obcs_apply_seaice (always
40        apply OB values when tile has OB)
41    o model/src, coriolis setting:
42      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
43        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
44        files (selectCoriMap=3) with any grid.
45      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
46    o pkg/seaice/seaice_growth.F:
47        a few cosmetic changes that reduce the number of lines of code
48    o pkg/obcs: add boundary conditions following Stevens (1990)
49      - the code follows old MOM/NAOSIM code
50      - so far it is only implemented for the eastern and western boundaries
51        and NOT for pTracers
52    o pkg/rbcs:
53      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
54        beginning of the first rbcs forcing period.
55      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
56        offline package, i.e., one file per time, labeled by iteration number;
57        deltaTrbcs sets the timestep with which the data was generated;
58        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
59      - rbcsForcingCycle=0 makes forcing non-cyclic.
60      - make arithmetic safe for negative times and odd forcing periods.
61    
62    checkpoint62n (2010/11/09)
63    o pkg/seaice:
64        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
65    o pkg/obcs:
66       New S/R to copy tracer value from the OB location to narrow band region
67        (width = same as overlap) beyond the OB: preserve OB value (needed for
68        high-order scheme) which were overwritten by EXCH call if in overlap
69        region. Applied to theta, salt, ptracer and advected seaice variables.
70       With seaice: use maskInC in similar way as in gad_advection.F,
71        in seaice_advection.F and advect.F.
72       Update output of experiment seaice_obcs and change exp4 to test OBCS with
73        4th order Adv.Scheme. for pasive salt and ptracer.
74    o tools/genmake2:
75      - when looking for an optfile (not specified), only search for Fortran compiler
76        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
77      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
78        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
79      - set default for CPP to "cpp -traditional -P" (was the case without specifying
80        an optfile, but otherwise default was just "cpp".
81      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
82      - when "CC" is not set in the optfile, look for possible C compiler
83        (instead of just setting CC=cc)
84      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
85        => add a ".F" to ".o" rule for source files with no "#include" (such as
86           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
87      - move gfortran before g77 in list of possible Fortran compiler (consistent
88        with reference compiler switch from g77 to gfortran)
89    o pkg/seaice:
90      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
91        seaice_check that stops the model, when the CPP flag is used.
92      o seaice_growth.F: make capping of ice volume conserving by returning the
93        capped ice as freshwater to EmPmR. This does not change the verification
94        experiments but will change runs where the capping is acutally active
95    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
96      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
97         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
98         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
99    o tools/genmake2:
100      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
101      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
102      - clean previous genmake log files before anything else.
103      - change Makefile to remove testreport log files (*.tr_log) and genmake log
104        files only with "CLEAN" target (instead of "Clean");
105    o pkg/generic_advdiff:
106      Change OBCS in multiDim advection (gad_advection.F):
107       Use maskInC to prevent intermediate update of tracer-field in OB regions,
108       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
109       which were applying future time-step OB values.
110      This way, all explicit calculations use current-time-step OB values
111       (simpler and more consistent).
112      Affects results when set-up uses time-varying OBC and multi-dim advection;
113       update output of experiment seaice_obcs.
114    o pkg/seaice:
115      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
116       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
117         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
118      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
119       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
120       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
121    o pkg aim (2010/10/26):
122      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
123        formulation with obliquity, eccentricity, ... as run-time parameters,
124      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
125        upward shortwave radition at the surface (all-sky and clear-sky).
126    o pkg/obcs:
127      - writing sections with globalFiles=T does not work: switch to tiled-files
128        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
129      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
130      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
131    
132    checkpoint62m (2010/10/21)
133    o pkg/seaice: vectorize seaice_solve4temp.F
134      - move iterations loops outside of i/j-loops
135      - requires 2D arrays for TB and effConduct
136      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
137        modified in this routine
138      - a little bit of clean up, adjusting indentation, etc.
139      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
140        performance and '**TWO' by '**2' (because TWO is a float),
141        replaced ONE, ZERO
142    o eesupp/src:
143       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
144    o pkg/seaice/seaice_growth.F
145      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
146      merging process. The merged routine has two branches, and one activates the 'evolution'
147      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
148      In summary, here is what the '10/10 revision' did consist of
149        part 1: seaice_growth.F revisions 1.71 to 1.75
150          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
151            The emphasis here was on improving readability (e.g. by trying to use meaningful
152            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
153        part 1.5:
154          - revising the lab_sea experiment to make it a more useful (i.e. stable
155            and representative of an actual model run). This was done by generating a
156            (winter) pickup to start from, switching back the main experiment dynamic
157            solver from evp to lsr, having one of the experiments use the free drift solution.
158        part 2: seaice_growth.F revisions 1.76 to 1.85
159          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
160          - Sorting out the various fields units and sign (set early on and reset at the end)
161            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
162            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
163          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
164            and simplifying logical expressions to further improve readibility.
165        part 3: seaice_growth.F revisions 1.86 to 1.89
166          - Re-organize the blocks of code more logically.
167          - Merging the '_if.F' pieces that add something new.
168    o pkg/thsice:
169      - vectorize thsice_solve4temp and thsice_get_exf.
170        Problem: thsice_solve4temp has an unvectorizable statement that
171        might also be problematic for TAF
172      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
173        does not change the verifcation experiment, but will change all
174        experiments that have this flag undefined (not tested in verification);
175        a little reorganization to save a few 2D fields and recomputations
176      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
177      - 2nd step:  fix some store dirs
178        o seems to work somewhat, i.e. using ifort but not g77
179        o likely cause are incomplete init. or recomputation
180        o start verification/global_ocean.cs32x15/input_ad.thsice
181    o pkg/obcs: add support for exch2
182      - the position of the boundary and prescribed values are specified using
183        a global domain with exch2 facets stacked
184        - in x for N,S boundaries (like W2_mapIO=-1)
185        - in y for E,W boundaries (so E,W boundaries do not overlap)
186    o pkg/mdsio: add support for writing global sections with exch2
187        file layout is as for obcs described above:
188        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
189        - for y-z sections, facets are stacked in y
190    o pkg/thsice:
191       - change a few routines for better vectorization: thsice_albedo.F,
192         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
193         not affected, but in particular the latter routine has changed
194         dramatically (not necessarily easier to read now).
195       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
196       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
197    o verification/lab_sea:
198      - overhaul of the forward model experiments. The main motivation
199        for this revision is that lab_sea has proven quite fragile (when
200        changing the sea-ice code, and switching platforms) to a point
201        when failures were very hard to attribute to specific code problems.
202      - the suspected reason for this fragility is noise amplification by evp so,
203        to start with, we decided to replace evp with lsr in the main experiment.
204      - the input.lsr experiment thus became obsolete and was removed.
205      - it was replaced with the input.fd experiment that uses an
206        analytical "free drift" solution as the ice velocity field.
207      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
208        will hopefully allow us to discriminate problems due to dynamic solvers
209        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
210        us to test additional options, along with the salt plume package.
211      - Finally a pickup was generated (at the end of a one year run) to
212        make the tests more representative of an actual model run. Previously
213        the tests starting point was a 1m thickness of ice everywhere.
214    o pkg/seaice:
215      - introducing S\R seaice_freedrift.F that compute the
216        analytical solution to an approximate ice momentum
217        equation (i.e. the simple stress/coriolis balance).
218      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
219        of the free drift velocity field, and enable its use.
220        To actually use the free drift solution as the model ice
221        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
222    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
223    
224    checkpoint62l (2010/10/04)
225    o pkg/seaice:
226      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
227      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
228       version (with USE_ORIGINAL_SBI undef);
229    o add hooks for new packages OASIS, the package will follow
230      (hooks exclude the seaice pkg for now)
231    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
232      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
233      rather than mdsio_readvector.F/mdsio_writevector.F, within
234      adread_adwrite.F to read/write adjoint-related tapes to disk.
235    o eesupp and pkg/mdsio: ALLOW_WHIO
236      Option to write/read 2D fields to files including tiles halos.
237      The main purpose is for adjoint related "tape I/O".
238      The secondary purpose is for debugging phases.
239      A word on those rather specifically intended purposes.
240      The code was meant to be stripped down to the bare minimum.
241      Typically, there is a unique and basic mapping to the global
242      buffer (tile by tile, then proc by proc, then level by level), and
243      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
244      meant to generate user friendly outputs of various shapes and forms.
245      Rather it is intended, for the knowledgeabale developers,
246      to be largely independent of the many mdsio options, to allow
247      outputs of tiles+halos in debugging phases and in adjoint runs,
248      and to allow some flexibility in tuning (adoint) I/O depending on each
249      file system behavior. With regard to tuning, most of the potential knobs
250      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
251      to specify directories, to specify the typical size of I/O calls, etc.)
252      are not yet included, and will be added if they prove useful.
253    o pkg/seaice:
254       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
255    o pkg/seaice:
256       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
257       code (seaice_budget_ice_if.F) which enable to recover old standard
258       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
259       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
260    o model/src (rStar):
261       use simple average (not area weighted) of rStarFac at U,V point when using
262       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
263       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
264    
265    checkpoint62k (2010/09/17)
266    o adjoint
267       * changed verification/global_ocean.cs32x15 ; adjoint now tests
268         Adams-Bashforth 3 + NLFS + RSTAR
269       * some more modifs required for ECCO-GODAE v4
270    o pkg/seaice
271       add SEAICE_AGE_VOL option to use volume instead of area for
272       integrating SEAICE_AGE
273    o model/src:
274       first check-in of sigma & hybrid-sigma coordinate code ; also includes
275       non-linear free-surface parts ; but pressure-gradient not yet coded.
276    o pkg/ptracers:
277       option for ptracer to convert Salt Relax into additional EmP.
278        tested in exp. global_ocean.90x40x15.dwnslp (update output)
279    
280    checkpoint62j (2010/08/25)
281    o pkg/ggl90:
282       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
283    o pkg/dic: car_flux.F, phos_flux.F
284      - reduce number of exp-calls in order to improve performance
285      - clean up a little (replace fields by their macros, etc., fix
286        typo in CPP-flag)
287  o pkg/ggl90: minor changes  o pkg/ggl90: minor changes
288    - GGL90diffKrS was removed --> always use GGL90diffKr    - GGL90diffKrS was removed --> always use GGL90diffKr
289    - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV    - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
290    - hack of mxlMaxFlag=2 --> ensure mixing between first and second level (commented out for now)    - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
291        (commented out for now)
292    - change in max/min operations to ensure that smoothing is ok    - change in max/min operations to ensure that smoothing is ok
293    - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)    - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
294    - always use diffKrNrT as background profile (i.e. never use diffKr field)    - always use diffKrNrT as background profile (i.e. never use diffKr field)
# Line 258  o tools/build_options: Line 539  o tools/build_options:
539      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
540  o pkg/ecco  o pkg/ecco
541    - allow user defined cost function contributions    - allow user defined cost function contributions
542          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
543          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
544    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
545        the two options are complementary.        the two options are complementary.
546  o pkg/smooth  o pkg/smooth

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