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revision 1.1272 by mlosch, Tue May 18 12:26:54 2010 UTC revision 1.1322 by dfer, Wed Oct 27 13:48:34 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:  o pkg aim (2010/10/26):
8      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
9        formulation with obliquity, eccentricity, ... as run-time parameters,
10      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
11        upward shortwave radition at the surface (all-sky and clear-sky).
12    
13    o pkg/obcs:
14      - writing sections with globalFiles=T does not work: switch to tiled-files
15        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
16      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
17      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
18    
19    checkpoint62m (2010/10/21)
20    o pkg/seaice: vectorize seaice_solve4temp.F
21      - move iterations loops outside of i/j-loops
22      - requires 2D arrays for TB and effConduct
23      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
24        modified in this routine
25      - a little bit of clean up, adjusting indentation, etc.
26      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
27        performance and '**TWO' by '**2' (because TWO is a float),
28        replaced ONE, ZERO
29    o eesupp/src:
30       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
31    o pkg/seaice/seaice_growth.F
32      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
33      merging process. The merged routine has two branches, and one activates the 'evolution'
34      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
35      In summary, here is what the '10/10 revision' did consist of
36        part 1: seaice_growth.F revisions 1.71 to 1.75
37          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
38            The emphasis here was on improving readability (e.g. by trying to use meaningful
39            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
40        part 1.5:
41          - revising the lab_sea experiment to make it a more useful (i.e. stable
42            and representative of an actual model run). This was done by generating a
43            (winter) pickup to start from, switching back the main experiment dynamic
44            solver from evp to lsr, having one of the experiments use the free drift solution.
45        part 2: seaice_growth.F revisions 1.76 to 1.85
46          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
47          - Sorting out the various fields units and sign (set early on and reset at the end)
48            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
49            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
50          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
51            and simplifying logical expressions to further improve readibility.
52        part 3: seaice_growth.F revisions 1.86 to 1.89
53          - Re-organize the blocks of code more logically.
54          - Merging the '_if.F' pieces that add something new.
55    o pkg/thsice:
56      - vectorize thsice_solve4temp and thsice_get_exf.
57        Problem: thsice_solve4temp has an unvectorizable statement that
58        might also be problematic for TAF
59      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
60        does not change the verifcation experiment, but will change all
61        experiments that have this flag undefined (not tested in verification);
62        a little reorganization to save a few 2D fields and recomputations
63      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
64      - 2nd step:  fix some store dirs
65        o seems to work somewhat, i.e. using ifort but not g77
66        o likely cause are incomplete init. or recomputation
67        o start verification/global_ocean.cs32x15/input_ad.thsice
68    o pkg/obcs: add support for exch2
69      - the position of the boundary and prescribed values are specified using
70        a global domain with exch2 facets stacked
71        - in x for N,S boundaries (like W2_mapIO=-1)
72        - in y for E,W boundaries (so E,W boundaries do not overlap)
73    o pkg/mdsio: add support for writing global sections with exch2
74        file layout is as for obcs described above:
75        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
76        - for y-z sections, facets are stacked in y
77    o pkg/thsice:
78       - change a few routines for better vectorization: thsice_albedo.F,
79         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
80         not affected, but in particular the latter routine has changed
81         dramatically (not necessarily easier to read now).
82       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
83       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
84    o verification/lab_sea:
85      - overhaul of the forward model experiments. The main motivation
86        for this revision is that lab_sea has proven quite fragile (when
87        changing the sea-ice code, and switching platforms) to a point
88        when failures were very hard to attribute to specific code problems.
89      - the suspected reason for this fragility is noise amplification by evp so,
90        to start with, we decided to replace evp with lsr in the main experiment.
91      - the input.lsr experiment thus became obsolete and was removed.
92      - it was replaced with the input.fd experiment that uses an
93        analytical "free drift" solution as the ice velocity field.
94      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
95        will hopefully allow us to discriminate problems due to dynamic solvers
96        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
97        us to test additional options, along with the salt plume package.
98      - Finally a pickup was generated (at the end of a one year run) to
99        make the tests more representative of an actual model run. Previously
100        the tests starting point was a 1m thickness of ice everywhere.
101    o pkg/seaice:
102      - introducing S\R seaice_freedrift.F that compute the
103        analytical solution to an approximate ice momentum
104        equation (i.e. the simple stress/coriolis balance).
105      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
106        of the free drift velocity field, and enable its use.
107        To actually use the free drift solution as the model ice
108        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
109    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
110    
111    checkpoint62l (2010/10/04)
112    o pkg/seaice:
113      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
114      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
115       version (with USE_ORIGINAL_SBI undef);
116    o add hooks for new packages OASIS, the package will follow
117      (hooks exclude the seaice pkg for now)
118    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
119      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
120      rather than mdsio_readvector.F/mdsio_writevector.F, within
121      adread_adwrite.F to read/write adjoint-related tapes to disk.
122    o eesupp and pkg/mdsio: ALLOW_WHIO
123      Option to write/read 2D fields to files including tiles halos.
124      The main purpose is for adjoint related "tape I/O".
125      The secondary purpose is for debugging phases.
126      A word on those rather specifically intended purposes.
127      The code was meant to be stripped down to the bare minimum.
128      Typically, there is a unique and basic mapping to the global
129      buffer (tile by tile, then proc by proc, then level by level), and
130      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
131      meant to generate user friendly outputs of various shapes and forms.
132      Rather it is intended, for the knowledgeabale developers,
133      to be largely independent of the many mdsio options, to allow
134      outputs of tiles+halos in debugging phases and in adjoint runs,
135      and to allow some flexibility in tuning (adoint) I/O depending on each
136      file system behavior. With regard to tuning, most of the potential knobs
137      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
138      to specify directories, to specify the typical size of I/O calls, etc.)
139      are not yet included, and will be added if they prove useful.
140    o pkg/seaice:
141       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
142    o pkg/seaice:
143       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
144       code (seaice_budget_ice_if.F) which enable to recover old standard
145       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
146       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
147    o model/src (rStar):
148       use simple average (not area weighted) of rStarFac at U,V point when using
149       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
150       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
151    
152    checkpoint62k (2010/09/17)
153    o adjoint
154       * changed verification/global_ocean.cs32x15 ; adjoint now tests
155         Adams-Bashforth 3 + NLFS + RSTAR
156       * some more modifs required for ECCO-GODAE v4
157    o pkg/seaice
158       add SEAICE_AGE_VOL option to use volume instead of area for
159       integrating SEAICE_AGE
160    o model/src:
161       first check-in of sigma & hybrid-sigma coordinate code ; also includes
162       non-linear free-surface parts ; but pressure-gradient not yet coded.
163    o pkg/ptracers:
164       option for ptracer to convert Salt Relax into additional EmP.
165        tested in exp. global_ocean.90x40x15.dwnslp (update output)
166    
167    checkpoint62j (2010/08/25)
168    o pkg/ggl90:
169       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
170    o pkg/dic: car_flux.F, phos_flux.F
171      - reduce number of exp-calls in order to improve performance
172      - clean up a little (replace fields by their macros, etc., fix
173        typo in CPP-flag)
174    o pkg/ggl90: minor changes
175      - GGL90diffKrS was removed --> always use GGL90diffKr
176      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
177      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
178        (commented out for now)
179      - change in max/min operations to ensure that smoothing is ok
180      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
181      - always use diffKrNrT as background profile (i.e. never use diffKr field)
182    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
183    o pkg/dic:
184      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
185        vectorization
186      - small bug fix in insol for the unlikely case of a cartesian grid
187      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
188        + now vectorize, which also removes adjoint recomputations;
189        + replace integer maksp1 by _RL maskp1
190        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
191    
192    checkpoint62i (2010/07/21)
193    o pkg/flt:
194      - with OBCS: stop floats which enter the OB region
195    o model/src:
196      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
197        for implicit vertical advection.
198    o pkg/seaice:
199     - account for melting in seaice age evolution.
200     - remove double counting of seaice ridging effect on seaice age.
201    
202    checkpoint62h (2010/06/18)
203    o pkg/exch2:
204     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
205    o tools/genmake2
206      - remove "-pdefault" option: redundant with the use of "packages.conf";
207      - remove file pkg/pkg_default : set the default as a pkg group
208        ("default_pkg_list") defined in pkg/pkg_groups;
209      - fix for case pkg/pkg_depend is missing (was hanging before);
210      - add option "-pgroups" to specify a different pkg_groups than the default.
211    o verification/adjustment.cs-32x32x1:
212       add a "minimal" set-up test (code_min & input_min) which only compiles
213       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
214    o tools/genmake2
215      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
216      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
217    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
218      files are nearly the same anyway.
219      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
220       - redefinition of tau(i,i) (by a factor of ustar)
221       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
222       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
223       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
224       - replace
225         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
226         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
227         by
228         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
229         (changes results)
230       -> exf_bulkformulae v1.22,
231          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
232          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
233                    output.txt 1.63
234           offline_exf_seaice: output.seaicetd.txt 1.7
235           seaice_obcs: output.txt 1.10)
236      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
237       -> exf_bulkformulae v1.23,
238          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
239          and global_ocean.cs32x15.icedyn (only 11 matching digits)
240      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
241    o adjoint of exch-1:
242     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
243       (note: was already like this when using EXCH-2) and remove flow dir
244       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
245     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
246     - update pkg/exch2 diff list.
247    
248    checkpoint62g (2010/05/19)
249    o eesupp/src (exch-1):
250     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
251       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
252       (renamed to exch1_*rx_cube.F).
253     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
254       to call new exch1 S/R ; update Makefile and .cvsignore.
255     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
256       exch2_xy_rx later)
257      Note: after updating your code, need to run "make clean" in eesupp/src
258    o test experiment bottom_ctrl_5x5:
259       new output_adm.txt with fewer grdchk & less monitor output.
260    o model/src:
261      remove the call to ini_cori in initialise_varia.F (just keep the usual one
262       in initialise_fixed.F). More consistent with coriolis & horizontal grid
263       beeing treated in the same way (ini_grid is not called a 2nd time).
264    o pkg/exf:
265    - rewrite exf_bulk_largeyeager04.F for better vectorization, changes    - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
266    global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated    global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
267    - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)    - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
# Line 18  o eesupp/src (exch-1): Line 275  o eesupp/src (exch-1):
275    - Message mode: move RecvAck setting (indicator of buffer being ready)    - Message mode: move RecvAck setting (indicator of buffer being ready)
276      from send_put to recv_get S/R (was useless before, but not sure if      from send_put to recv_get S/R (was useless before, but not sure if
277      it's much more useful now);      it's much more useful now);
278    - switch the order of sync: MPI-proc 1rst and then threads;    - Switch the order of sync: MPI-proc 1rst and then threads;
279    - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.    - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
280      - fix AD code for communication mode ='get' (but not used).
281  o model/src:  o model/src:
282    initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does    initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
283    not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).    not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
# Line 168  o tools/build_options: Line 426  o tools/build_options:
426      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
427  o pkg/ecco  o pkg/ecco
428    - allow user defined cost function contributions    - allow user defined cost function contributions
429          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
430          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
431    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
432        the two options are complementary.        the two options are complementary.
433  o pkg/smooth  o pkg/smooth

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