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-revision 1.1271 by mlosch,
Mon May 17 14:23:42 2010 UTC
+revision 1.1337 by mlosch,
Fri Nov 19 16:22:33 2010 UTC
 Line 4 
 $Name$
      Notes on tags used in MITgcmUV
      ==============================
- o pkg/exf/exf_bulk_largeyeager04.F: rewrite for better vectorization, changes
+ o pkg/seaice:
+   - seaice_growth.F: fix bug in conservation of freshwater connected to
+     capping of heff
+   - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
+     by something more sensible (parameters that are what their name implies)
+   - change some defaults, so that by default exf-parameters are used for
+     things like rhoAir, cpAir,latent/sensible heat parameters, in order
+     to reproduce the old results, many data.seaice now contain funny values
+     for cpAir and latent heat of sublimation
+ o packages_readparms.F: move exf_readparms up in line so that
+     exf-parameters are visible for other packages (e.g. seaice)
+ o debugMode & debugLevel=2:
+   - differentiate between debugMode & debugLevel=2:
+     debugMode: controls printing of debug messages (sequence of S/R calls).
+     debugLevel: controls printing of algorithm intermediate results and stats.
+   - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
+     => allows to print debug-stats without all sequence of call messages.
+   - switch control of debug print from debugLevel to debugMode in many S/R.
+ o pkg/obcs (obcs-sponge):
+     fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
+     call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
+ o pkg/generic_advdiff:
+   - record overlap minimum size for each advection scheme;
+   - refine criteria on overlap minimum size;
+   - check and stop (in gad_check) if overlap size is too small.
+ o pkg/obcs:
+   - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
+     once, in ptracers_implicit.F)
+   - with seaice: remove test on empty file name in obcs_apply_seaice (always
+     apply OB values when tile has OB)
+ o model/src, coriolis setting:
+   - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
+     useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
+     files (selectCoriMap=3) with any grid.
+   - add parameter "fPrime" for constant second Coriolis coeff (default=0).
+ o pkg/seaice/seaice_growth.F:
+     a few cosmetic changes that reduce the number of lines of code
+ o pkg/obcs: add boundary conditions following Stevens (1990)
+   - the code follows old MOM/NAOSIM code
+   - so far it is only implemented for the eastern and western boundaries
+     and NOT for pTracers
+ o pkg/rbcs:
+   - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
+     beginning of the first rbcs forcing period.
+   - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
+     offline package, i.e., one file per time, labeled by iteration number;
+     deltaTrbcs sets the timestep with which the data was generated;
+     rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
+   - rbcsForcingCycle=0 makes forcing non-cyclic.
+   - make arithmetic safe for negative times and odd forcing periods.
+ checkpoint62n (2010/11/09)
+ o pkg/seaice:
+     fix masking in free-drift S/R ; update results of exp. lab_sea.fd
+ o pkg/obcs:
+    New S/R to copy tracer value from the OB location to narrow band region
+     (width = same as overlap) beyond the OB: preserve OB value (needed for
+     high-order scheme) which were overwritten by EXCH call if in overlap
+     region. Applied to theta, salt, ptracer and advected seaice variables.
+    With seaice: use maskInC in similar way as in gad_advection.F,
+     in seaice_advection.F and advect.F.
+    Update output of experiment seaice_obcs and change exp4 to test OBCS with
+th order Adv.Scheme. for pasive salt and ptracer.
+ o tools/genmake2:
+   - when looking for an optfile (not specified), only search for Fortran compiler
+     (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
+   - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
+     (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
+   - set default for CPP to "cpp -traditional -P" (was the case without specifying
+     an optfile, but otherwise default was just "cpp".
+   - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
+   - when "CC" is not set in the optfile, look for possible C compiler
+     (instead of just setting CC=cc)
+   - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
+     => add a ".F" to ".o" rule for source files with no "#include" (such as
+        port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
+   - move gfortran before g77 in list of possible Fortran compiler (consistent
+     with reference compiler switch from g77 to gfortran)
+ o pkg/seaice:
+   o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
+     seaice_check that stops the model, when the CPP flag is used.
+   o seaice_growth.F: make capping of ice volume conserving by returning the
+     capped ice as freshwater to EmPmR. This does not change the verification
+     experiments but will change runs where the capping is acutally active
+ o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
+   (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
+      global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
+      lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
+ o tools/genmake2:
+   - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
+   - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
+   - clean previous genmake log files before anything else.
+   - change Makefile to remove testreport log files (*.tr_log) and genmake log
+     files only with "CLEAN" target (instead of "Clean");
+ o pkg/generic_advdiff:
+   Change OBCS in multiDim advection (gad_advection.F):
+    Use maskInC to prevent intermediate update of tracer-field in OB regions,
+    thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
+    which were applying future time-step OB values.
+   This way, all explicit calculations use current-time-step OB values
+    (simpler and more consistent).
+   Affects results when set-up uses time-varying OBC and multi-dim advection;
+    update output of experiment seaice_obcs.
+ o pkg/seaice:
+   move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
+    this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
+      SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
+   Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
+    but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
+    unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
+ o pkg aim (2010/10/26):
+   - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
+     formulation with obliquity, eccentricity, ... as run-time parameters,
+   - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
+     upward shortwave radition at the surface (all-sky and clear-sky).
+ o pkg/obcs:
+   - writing sections with globalFiles=T does not work: switch to tiled-files
+     when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
+   - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
+   - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
+ checkpoint62m (2010/10/21)
+ o pkg/seaice: vectorize seaice_solve4temp.F
+   - move iterations loops outside of i/j-loops
+   - requires 2D arrays for TB and effConduct
+   - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
+     modified in this routine
+   - a little bit of clean up, adjusting indentation, etc.
+   - replaced a few TEN**a by exp(a*log(10.)) in new code for better
+     performance and '**TWO' by '**2' (because TWO is a float),
+     replaced ONE, ZERO
+ o eesupp/src:
+    fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
+ o pkg/seaice/seaice_growth.F
+   Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
+   merging process. The merged routine has two branches, and one activates the 'evolution'
+   branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
+   In summary, here is what the '10/10 revision' did consist of
+     part 1: seaice_growth.F revisions 1.71 to 1.75
+       - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
+         The emphasis here was on improving readability (e.g. by trying to use meaningful
+         variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
+     part 1.5:
+       - revising the lab_sea experiment to make it a more useful (i.e. stable
+         and representative of an actual model run). This was done by generating a
+         (winter) pickup to start from, switching back the main experiment dynamic
+         solver from evp to lsr, having one of the experiments use the free drift solution.
+     part 2: seaice_growth.F revisions 1.76 to 1.85
+       - Sorting out hard-coded constants that prevented heat and fresh water conservation.
+       - Sorting out the various fields units and sign (set early on and reset at the end)
+         to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
+         fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
+       - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
+         and simplifying logical expressions to further improve readibility.
+     part 3: seaice_growth.F revisions 1.86 to 1.89
+       - Re-organize the blocks of code more logically.
+       - Merging the '_if.F' pieces that add something new.
+ o pkg/thsice:
+   - vectorize thsice_solve4temp and thsice_get_exf.
+     Problem: thsice_solve4temp has an unvectorizable statement that
+     might also be problematic for TAF
+   - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
+     does not change the verifcation experiment, but will change all
+     experiments that have this flag undefined (not tested in verification);
+     a little reorganization to save a few 2D fields and recomputations
+   - 1st step of revisiting thsice adjoint (major recomp. sorted out)
+   - 2nd step:  fix some store dirs
+     o seems to work somewhat, i.e. using ifort but not g77
+     o likely cause are incomplete init. or recomputation
+     o start verification/global_ocean.cs32x15/input_ad.thsice
+ o pkg/obcs: add support for exch2
+   - the position of the boundary and prescribed values are specified using
+     a global domain with exch2 facets stacked
+     - in x for N,S boundaries (like W2_mapIO=-1)
+     - in y for E,W boundaries (so E,W boundaries do not overlap)
+ o pkg/mdsio: add support for writing global sections with exch2
+     file layout is as for obcs described above:
+     - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
+     - for y-z sections, facets are stacked in y
+ o pkg/thsice:
+    - change a few routines for better vectorization: thsice_albedo.F,
+      thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
+      not affected, but in particular the latter routine has changed
+      dramatically (not necessarily easier to read now).
+    - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
+    iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
+ o verification/lab_sea:
+   - overhaul of the forward model experiments. The main motivation
+     for this revision is that lab_sea has proven quite fragile (when
+     changing the sea-ice code, and switching platforms) to a point
+     when failures were very hard to attribute to specific code problems.
+   - the suspected reason for this fragility is noise amplification by evp so,
+     to start with, we decided to replace evp with lsr in the main experiment.
+   - the input.lsr experiment thus became obsolete and was removed.
+   - it was replaced with the input.fd experiment that uses an
+     analytical "free drift" solution as the ice velocity field.
+   - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
+     will hopefully allow us to discriminate problems due to dynamic solvers
+     from problems due to the thermodynamic code. input.salt_plume (lsr) allows
+     us to test additional options, along with the salt plume package.
+   - Finally a pickup was generated (at the end of a one year run) to
+     make the tests more representative of an actual model run. Previously
+     the tests starting point was a 1m thickness of ice everywhere.
+ o pkg/seaice:
+   - introducing S\R seaice_freedrift.F that compute the
+     analytical solution to an approximate ice momentum
+     equation (i.e. the simple stress/coriolis balance).
+   - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
+     of the free drift velocity field, and enable its use.
+     To actually use the free drift solution as the model ice
+     velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
+ o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
+ checkpoint62l (2010/10/04)
+ o pkg/seaice:
+   -fix the USE_ORIGINAL_SBI version (for variable freezing point);
+   -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
+    version (with USE_ORIGINAL_SBI undef);
+ o add hooks for new packages OASIS, the package will follow
+   (hooks exclude the seaice pkg for now)
+ o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
+   Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
+   rather than mdsio_readvector.F/mdsio_writevector.F, within
+   adread_adwrite.F to read/write adjoint-related tapes to disk.
+ o eesupp and pkg/mdsio: ALLOW_WHIO
+   Option to write/read 2D fields to files including tiles halos.
+   The main purpose is for adjoint related "tape I/O".
+   The secondary purpose is for debugging phases.
+   A word on those rather specifically intended purposes.
+   The code was meant to be stripped down to the bare minimum.
+   Typically, there is a unique and basic mapping to the global
+   buffer (tile by tile, then proc by proc, then level by level), and
+   byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
+   meant to generate user friendly outputs of various shapes and forms.
+   Rather it is intended, for the knowledgeabale developers,
+   to be largely independent of the many mdsio options, to allow
+   outputs of tiles+halos in debugging phases and in adjoint runs,
+   and to allow some flexibility in tuning (adoint) I/O depending on each
+   file system behavior. With regard to tuning, most of the potential knobs
+   (to leave files open, to allocate the I/O indep. of usesinglecpuio,
+   to specify directories, to specify the typical size of I/O calls, etc.)
+   are not yet included, and will be added if they prove useful.
+ o pkg/seaice:
+    fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
+ o pkg/seaice:
+    new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
+    code (seaice_budget_ice_if.F) which enable to recover old standard
+    code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
+    temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
+ o model/src (rStar):
+    use simple average (not area weighted) of rStarFac at U,V point when using
+    vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
+    update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
+ checkpoint62k (2010/09/17)
+ o adjoint
+    * changed verification/global_ocean.cs32x15 ; adjoint now tests
+      Adams-Bashforth 3 + NLFS + RSTAR
+    * some more modifs required for ECCO-GODAE v4
+ o pkg/seaice
+    add SEAICE_AGE_VOL option to use volume instead of area for
+    integrating SEAICE_AGE
+ o model/src:
+    first check-in of sigma & hybrid-sigma coordinate code ; also includes
+    non-linear free-surface parts ; but pressure-gradient not yet coded.
+ o pkg/ptracers:
+    option for ptracer to convert Salt Relax into additional EmP.
+     tested in exp. global_ocean.90x40x15.dwnslp (update output)
+ checkpoint62j (2010/08/25)
+ o pkg/ggl90:
+    other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
+ o pkg/dic: car_flux.F, phos_flux.F
+   - reduce number of exp-calls in order to improve performance
+   - clean up a little (replace fields by their macros, etc., fix
+     typo in CPP-flag)
+ o pkg/ggl90: minor changes
+   - GGL90diffKrS was removed --> always use GGL90diffKr
+   - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
+   - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
+     (commented out for now)
+   - change in max/min operations to ensure that smoothing is ok
+   - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
+   - always use diffKrNrT as background profile (i.e. never use diffKr field)
+ o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
+ o pkg/dic:
+   - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
+     vectorization
+   - small bug fix in insol for the unlikely case of a cartesian grid
+   - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
+     + now vectorize, which also removes adjoint recomputations;
+     + replace integer maksp1 by _RL maskp1
+     + replace a**x by exp(x*log(a)) in phos_flux.F for speed
+ checkpoint62i (2010/07/21)
+ o pkg/flt:
+   - with OBCS: stop floats which enter the OB region
+ o model/src:
+   - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
+     for implicit vertical advection.
+ o pkg/seaice:
+  - account for melting in seaice age evolution.
+  - remove double counting of seaice ridging effect on seaice age.
+ checkpoint62h (2010/06/18)
+ o pkg/exch2:
+  - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
+ o tools/genmake2
+   - remove "-pdefault" option: redundant with the use of "packages.conf";
+   - remove file pkg/pkg_default : set the default as a pkg group
+     ("default_pkg_list") defined in pkg/pkg_groups;
+   - fix for case pkg/pkg_depend is missing (was hanging before);
+   - add option "-pgroups" to specify a different pkg_groups than the default.
+ o verification/adjustment.cs-32x32x1:
+    add a "minimal" set-up test (code_min & input_min) which only compiles
+    eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
+ o tools/genmake2
+   - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
+   - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
+ o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
+   files are nearly the same anyway.
+   Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
+    - redefinition of tau(i,i) (by a factor of ustar)
+    - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
+    - replace rhonil by rhoConstFresh in computation of evap (bug fix)
+    - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
+    - replace
+      rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
+      shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
+      by
+      shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
+      (changes results)
+    -> exf_bulkformulae v1.22,
+       update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
+       (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
+                 output.txt 1.63
+        offline_exf_seaice: output.seaicetd.txt 1.7
+        seaice_obcs: output.txt 1.10)
+   Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
+    -> exf_bulkformulae v1.23,
+       unfortunately requires updating lab_sea.salt_plume (6 matching digits),
+       and global_ocean.cs32x15.icedyn (only 11 matching digits)
+   Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
+ o adjoint of exch-1:
+  - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
+    (note: was already like this when using EXCH-2) and remove flow dir
+    and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
+  - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
+  - update pkg/exch2 diff list.
+ checkpoint62g (2010/05/19)
+ o eesupp/src (exch-1):
+  - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
+    and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
+    (renamed to exch1_*rx_cube.F).
+  - change accordingly exch_*_rx.template and AD version in pkg/autodiff
+    to call new exch1 S/R ; update Makefile and .cvsignore.
+  - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
+    exch2_xy_rx later)
+   Note: after updating your code, need to run "make clean" in eesupp/src
+ o test experiment bottom_ctrl_5x5:
+    new output_adm.txt with fewer grdchk & less monitor output.
+ o model/src:
+   remove the call to ini_cori in initialise_varia.F (just keep the usual one
+    in initialise_fixed.F). More consistent with coriolis & horizontal grid
+    beeing treated in the same way (ini_grid is not called a 2nd time).
+ o pkg/exf:
+   - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
    global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
+   - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
+   - cosmetic changes to exf_bulkformulae.F to make it look more like
+     exf_bulk_largeyeager04.F
  o eesupp/src (exch-1):
    - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
    - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
-Line 14 
 o eesupp/src (exch-1):
+Line 384 
 o eesupp/src (exch-1):
    - Message mode: move RecvAck setting (indicator of buffer being ready)
      from send_put to recv_get S/R (was useless before, but not sure if
      it's much more useful now);
-   - switch the order of sync: MPI-proc 1rst and then threads;
+   - Switch the order of sync: MPI-proc 1rst and then threads;
    - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
+   - fix AD code for communication mode ='get' (but not used).
  o model/src:
    initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
    not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
-Line 164 
 o tools/build_options:
+Line 535 
 o tools/build_options:
      but keep the former optfile for few weeks for smooth transition
  o pkg/ecco
    - allow user defined cost function contributions
-         CPP: ALLOW_USERCOST_CONTRIBUTION
+      CPP: ALLOW_USERCOST_CONTRIBUTION
-         USAGE: compute contributions in cost_usercost_all.F
+      USAGE: compute contributions in cost_usercost_all.F
    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
        the two options are complementary.
  o pkg/smooth

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