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revision 1.1258 by mlosch, Wed Apr 28 08:37:41 2010 UTC revision 1.1295 by jmc, Sat Sep 11 21:39:13 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 model/src:
8       first check-in of sigma & hybrid-sigma coordinate code ; also includes
9       non-linear free-surface parts ; but pressure-gradient not yet coded.
10    o pkg/ptracers:
11       option for ptracer to convert Salt Relax into additional EmP.
12        tested in exp. global_ocean.90x40x15.dwnslp (update output)
13    
14    checkpoint62j (2010/08/25)
15    o pkg/ggl90:
16       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
17    o pkg/dic: car_flux.F, phos_flux.F
18      - reduce number of exp-calls in order to improve performance
19      - clean up a little (replace fields by their macros, etc., fix
20        typo in CPP-flag)
21    o pkg/ggl90: minor changes
22      - GGL90diffKrS was removed --> always use GGL90diffKr
23      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
24      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
25        (commented out for now)
26      - change in max/min operations to ensure that smoothing is ok
27      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
28      - always use diffKrNrT as background profile (i.e. never use diffKr field)
29    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
30    o pkg/dic:
31      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
32        vectorization
33      - small bug fix in insol for the unlikely case of a cartesian grid
34      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
35        + now vectorize, which also removes adjoint recomputations;
36        + replace integer maksp1 by _RL maskp1
37        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
38    
39    checkpoint62i (2010/07/21)
40    o pkg/flt:
41      - with OBCS: stop floats which enter the OB region
42    o model/src:
43      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
44        for implicit vertical advection.
45    o pkg/seaice:
46     - account for melting in seaice age evolution.
47     - remove double counting of seaice ridging effect on seaice age.
48    
49    checkpoint62h (2010/06/18)
50    o pkg/exch2:
51     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
52    o tools/genmake2
53      - remove "-pdefault" option: redundant with the use of "packages.conf";
54      - remove file pkg/pkg_default : set the default as a pkg group
55        ("default_pkg_list") defined in pkg/pkg_groups;
56      - fix for case pkg/pkg_depend is missing (was hanging before);
57      - add option "-pgroups" to specify a different pkg_groups than the default.
58    o verification/adjustment.cs-32x32x1:
59       add a "minimal" set-up test (code_min & input_min) which only compiles
60       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
61    o tools/genmake2
62      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
63      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
64    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
65      files are nearly the same anyway.
66      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
67       - redefinition of tau(i,i) (by a factor of ustar)
68       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
69       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
70       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
71       - replace
72         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
73         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
74         by
75         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
76         (changes results)
77       -> exf_bulkformulae v1.22,
78          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
79          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
80                    output.txt 1.63
81           offline_exf_seaice: output.seaicetd.txt 1.7
82           seaice_obcs: output.txt 1.10)
83      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
84       -> exf_bulkformulae v1.23,
85          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
86          and global_ocean.cs32x15.icedyn (only 11 matching digits)
87      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
88    o adjoint of exch-1:
89     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
90       (note: was already like this when using EXCH-2) and remove flow dir
91       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
92     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
93     - update pkg/exch2 diff list.
94    
95    checkpoint62g (2010/05/19)
96    o eesupp/src (exch-1):
97     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
98       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
99       (renamed to exch1_*rx_cube.F).
100     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
101       to call new exch1 S/R ; update Makefile and .cvsignore.
102     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
103       exch2_xy_rx later)
104      Note: after updating your code, need to run "make clean" in eesupp/src
105    o test experiment bottom_ctrl_5x5:
106       new output_adm.txt with fewer grdchk & less monitor output.
107    o model/src:
108      remove the call to ini_cori in initialise_varia.F (just keep the usual one
109       in initialise_fixed.F). More consistent with coriolis & horizontal grid
110       beeing treated in the same way (ini_grid is not called a 2nd time).
111    o pkg/exf:
112      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
113      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
114      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
115      - cosmetic changes to exf_bulkformulae.F to make it look more like
116        exf_bulk_largeyeager04.F
117    o eesupp/src (exch-1):
118      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
119      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
120        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
121        (even without using MPI).
122      - Message mode: move RecvAck setting (indicator of buffer being ready)
123        from send_put to recv_get S/R (was useless before, but not sure if
124        it's much more useful now);
125      - Switch the order of sync: MPI-proc 1rst and then threads;
126      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
127      - fix AD code for communication mode ='get' (but not used).
128    o model/src:
129      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
130      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
131    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
132    o pkg/ctrl: require a specific set of control variables and exf-flags for
133      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
134    o model/src:
135     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
136       1rst forward sweep, to avoid over-writing output files during recomputations
137       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
138     b) 2nd version:
139      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
140      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
141         writePickupAtEnd) + seaice & ptracers output;
142      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
143    o model/src:
144      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
145    o pkg/exch2:
146      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
147      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
148    o pkg/autodiff & exch2:
149      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
150      (for now, only if ALLOW_EXCH2 is defined).
151    o pkg/autodiff:
152      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
153        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
154       + clean-up comments (_RS is not always real*4)
155      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
156      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
157        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
158    o testreport (AD-tests):
159      no longer link files from dir "../input" (1rst link files from
160      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
161    
162    checkpoint62f (2010/04/29)
163  o model/src/the_main_loop.F:  o model/src/the_main_loop.F:
164    adjust store directives for seaice evp and multicategory according to    adjust store directives for seaice evp and multicategory according to
165    pkg/ecco/the_main_loop.F    pkg/ecco/the_main_loop.F
166  o adjoint:  o adjoint:
167    global_sum_ad was incomplete (noted many times by many people ;)    global_sum_ad was incomplete (noted many times by many people ;)
168    nice description by Jean U. as follows:    nice description by Jean U. as follows:
169    * allreduce(var) in global_sum.F can be interpreted as    * allreduce(var) in global_sum.F can be interpreted as
170      reduce(sum) followed by broadcast of sum.        reduce(sum) followed by broadcast of sum.
171    * The adjoint of that is    * The adjoint of that is
172      sum(adjoint) followed by broadcast(summed adjoint value)      sum(adjoint) followed by broadcast(summed adjoint value)
173      or in other words, allreduce(sum, adjoint vars)      or in other words, allreduce(sum, adjoint vars)
174    We were missing the sum(adjoint)!    We were missing the sum(adjoint)!
175    Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)    Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)

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