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revision 1.1296 by dimitri, Thu Sep 16 20:43:00 2010 UTC revision 1.1326 by jmc, Wed Nov 3 18:42:32 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 change reference platform+compiler from faulks+g77 to baudelaire+gfortran
8      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
9         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
10         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
11    o tools/genmake2:
12      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
13      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
14      - clean previous genmake log files before anything else.
15      - change Makefile to remove testreport log files (*.tr_log) and genmake log
16        files only with "CLEAN" target (instead of "Clean");
17    o pkg/generic_advdiff:
18      Change OBCS in multiDim advection (gad_advection.F):
19       Use maskInC to prevent intermediate update of tracer-field in OB regions,
20       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
21       which were applying future time-step OB values.
22      This way, all explicit calculations use current-time-step OB values
23       (simpler and more consistent).
24      Affects results when set-up uses time-varying OBC and multi-dim advection;
25       update output of experiment seaice_obcs.
26    o pkg/seaice:
27      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
28       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
29         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
30      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
31       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
32       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
33      For OBCS, close southern and western boundaries for sea ice solver
34       based on myYGlobalLo and myXGlobalLo instead of OB_Js and OB_Iw.
35    o pkg aim (2010/10/26):
36      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
37        formulation with obliquity, eccentricity, ... as run-time parameters,
38      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
39        upward shortwave radition at the surface (all-sky and clear-sky).
40    o pkg/obcs:
41      - writing sections with globalFiles=T does not work: switch to tiled-files
42        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
43      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
44      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
45    
46    checkpoint62m (2010/10/21)
47    o pkg/seaice: vectorize seaice_solve4temp.F
48      - move iterations loops outside of i/j-loops
49      - requires 2D arrays for TB and effConduct
50      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
51        modified in this routine
52      - a little bit of clean up, adjusting indentation, etc.
53      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
54        performance and '**TWO' by '**2' (because TWO is a float),
55        replaced ONE, ZERO
56    o eesupp/src:
57       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
58    o pkg/seaice/seaice_growth.F
59      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
60      merging process. The merged routine has two branches, and one activates the 'evolution'
61      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
62      In summary, here is what the '10/10 revision' did consist of
63        part 1: seaice_growth.F revisions 1.71 to 1.75
64          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
65            The emphasis here was on improving readability (e.g. by trying to use meaningful
66            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
67        part 1.5:
68          - revising the lab_sea experiment to make it a more useful (i.e. stable
69            and representative of an actual model run). This was done by generating a
70            (winter) pickup to start from, switching back the main experiment dynamic
71            solver from evp to lsr, having one of the experiments use the free drift solution.
72        part 2: seaice_growth.F revisions 1.76 to 1.85
73          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
74          - Sorting out the various fields units and sign (set early on and reset at the end)
75            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
76            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
77          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
78            and simplifying logical expressions to further improve readibility.
79        part 3: seaice_growth.F revisions 1.86 to 1.89
80          - Re-organize the blocks of code more logically.
81          - Merging the '_if.F' pieces that add something new.
82    o pkg/thsice:
83      - vectorize thsice_solve4temp and thsice_get_exf.
84        Problem: thsice_solve4temp has an unvectorizable statement that
85        might also be problematic for TAF
86      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
87        does not change the verifcation experiment, but will change all
88        experiments that have this flag undefined (not tested in verification);
89        a little reorganization to save a few 2D fields and recomputations
90      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
91      - 2nd step:  fix some store dirs
92        o seems to work somewhat, i.e. using ifort but not g77
93        o likely cause are incomplete init. or recomputation
94        o start verification/global_ocean.cs32x15/input_ad.thsice
95    o pkg/obcs: add support for exch2
96      - the position of the boundary and prescribed values are specified using
97        a global domain with exch2 facets stacked
98        - in x for N,S boundaries (like W2_mapIO=-1)
99        - in y for E,W boundaries (so E,W boundaries do not overlap)
100    o pkg/mdsio: add support for writing global sections with exch2
101        file layout is as for obcs described above:
102        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
103        - for y-z sections, facets are stacked in y
104    o pkg/thsice:
105       - change a few routines for better vectorization: thsice_albedo.F,
106         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
107         not affected, but in particular the latter routine has changed
108         dramatically (not necessarily easier to read now).
109       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
110       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
111    o verification/lab_sea:
112      - overhaul of the forward model experiments. The main motivation
113        for this revision is that lab_sea has proven quite fragile (when
114        changing the sea-ice code, and switching platforms) to a point
115        when failures were very hard to attribute to specific code problems.
116      - the suspected reason for this fragility is noise amplification by evp so,
117        to start with, we decided to replace evp with lsr in the main experiment.
118      - the input.lsr experiment thus became obsolete and was removed.
119      - it was replaced with the input.fd experiment that uses an
120        analytical "free drift" solution as the ice velocity field.
121      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
122        will hopefully allow us to discriminate problems due to dynamic solvers
123        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
124        us to test additional options, along with the salt plume package.
125      - Finally a pickup was generated (at the end of a one year run) to
126        make the tests more representative of an actual model run. Previously
127        the tests starting point was a 1m thickness of ice everywhere.
128    o pkg/seaice:
129      - introducing S\R seaice_freedrift.F that compute the
130        analytical solution to an approximate ice momentum
131        equation (i.e. the simple stress/coriolis balance).
132      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
133        of the free drift velocity field, and enable its use.
134        To actually use the free drift solution as the model ice
135        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
136    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
137    
138    checkpoint62l (2010/10/04)
139    o pkg/seaice:
140      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
141      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
142       version (with USE_ORIGINAL_SBI undef);
143    o add hooks for new packages OASIS, the package will follow
144      (hooks exclude the seaice pkg for now)
145    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
146      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
147      rather than mdsio_readvector.F/mdsio_writevector.F, within
148      adread_adwrite.F to read/write adjoint-related tapes to disk.
149    o eesupp and pkg/mdsio: ALLOW_WHIO
150      Option to write/read 2D fields to files including tiles halos.
151      The main purpose is for adjoint related "tape I/O".
152      The secondary purpose is for debugging phases.
153      A word on those rather specifically intended purposes.
154      The code was meant to be stripped down to the bare minimum.
155      Typically, there is a unique and basic mapping to the global
156      buffer (tile by tile, then proc by proc, then level by level), and
157      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
158      meant to generate user friendly outputs of various shapes and forms.
159      Rather it is intended, for the knowledgeabale developers,
160      to be largely independent of the many mdsio options, to allow
161      outputs of tiles+halos in debugging phases and in adjoint runs,
162      and to allow some flexibility in tuning (adoint) I/O depending on each
163      file system behavior. With regard to tuning, most of the potential knobs
164      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
165      to specify directories, to specify the typical size of I/O calls, etc.)
166      are not yet included, and will be added if they prove useful.
167    o pkg/seaice:
168       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
169    o pkg/seaice:
170       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
171       code (seaice_budget_ice_if.F) which enable to recover old standard
172       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
173       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
174    o model/src (rStar):
175       use simple average (not area weighted) of rStarFac at U,V point when using
176       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
177       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
178    
179    checkpoint62k (2010/09/17)
180    o adjoint
181       * changed verification/global_ocean.cs32x15 ; adjoint now tests
182         Adams-Bashforth 3 + NLFS + RSTAR
183       * some more modifs required for ECCO-GODAE v4
184  o pkg/seaice  o pkg/seaice
185     add SEAICE_AGE_VOL option to use volume instead of area for     add SEAICE_AGE_VOL option to use volume instead of area for
186     integrating SEAICE_AGE     integrating SEAICE_AGE
# Line 276  o tools/build_options: Line 453  o tools/build_options:
453      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
454  o pkg/ecco  o pkg/ecco
455    - allow user defined cost function contributions    - allow user defined cost function contributions
456          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
457          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
458    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
459        the two options are complementary.        the two options are complementary.
460  o pkg/smooth  o pkg/smooth

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