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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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o model/src/the_main_loop.F: |
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adjust store directives for seaice evp and multicategory according to |
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pkg/ecco/the_main_loop.F |
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o adjoint: |
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global_sum_ad was incomplete (noted many times by many people ;) |
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nice description by Jean U. as follows: |
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* allreduce(var) in global_sum.F can be interpreted as |
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reduce(sum) followed by broadcast of sum. |
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* The adjoint of that is |
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sum(adjoint) followed by broadcast(summed adjoint value) |
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or in other words, allreduce(sum, adjoint vars) |
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We were missing the sum(adjoint)! |
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Benign, except(!) for "global" scalars appearing in tile loops (bi,bj) |
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(noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset). |
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The fix should produce 16-digit accuracy between |
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single-CPU multi-tile (e.g. nSx=2, nPx=1) and |
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multi-CPU single-tile (e.g. nSx=1, nPx-2) |
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We'll probably change this yet again shortly |
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o eesupp/src: |
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- fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?) |
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o pkg/icefront |
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- ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving |
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specification of addmass array based on a 2D field, which is added |
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at bottommost wet level at each horizontal location. |
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o model/src: |
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horizontal grid initialisation (other than curvilinear): add code for Exch2 IO |
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layout; (not always compatible with delX,delY setting; commented out for now). |
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o pkg/exch2: |
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change tile to processor setting (case nSy*nPy > 1): allows default model mapping |
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(myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config. |
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checkpoint62e (2010/04/15) |
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o pkg/obcs: |
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- fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert). |
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o pkg/dic: |
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-fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up; |
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(note: not presently tested in any forward verification exp.) |
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update tutorial_global_oce_biogeo AD output file. |
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o pkg/exf: |
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- account for the variation of albedo as a function of zenith angle |
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by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h |
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o build_options: |
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- rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas" |
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o pkg/dic: |
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change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart: |
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- use binary pickup file for restart; |
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- initialise atmos-CO2 box from dic_pCO2 parameter; |
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- fix multi-threaded. |
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o pkg/rbcs: |
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- clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ; |
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change (+ fix IO calls) type of array RBC_mask from _RL to _RS. |
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- add RBCS to exp4 passive tracer 01 (rbcs was previously untested) |
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and update output.txt |
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o pkg/kpp: |
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- add diagnostics for KPP non-local flux of Temp, Salinity and pTracers; |
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- change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS |
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(= ratio of KPP non-local (salt) flux relative to surface-flux) when |
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using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat '); |
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- change pkg/offline to read-in average KPPghat*KPPdiffKzS from file |
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KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile). |
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o pkg/offline: |
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fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor |
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(bug was added in version 1.10 on 2007-08-23). |
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o pkg/offline: |
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- no need to specify periodicExternalForcing, etc ... to use offline pack |
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- offline input files no longer just single prec --> parameter offlineLoadPrec |
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o verification/lab_sea: |
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change AD test to multi-tile setup and update all 4 AD output. |
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NOTE: while cost function values remain very similar, |
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gradients are very different, although gradient checks are self-consistent |
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Should try to get to the bottom of this (cost function summation order?) |
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o pkg/dic: |
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in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid |
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a weakness of TAF that drops part of double precision in log10 derivative. |
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<= changes removed since problem has been fixed in current TAF version 1.9.71 |
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update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo. |
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o pkg/ecco: |
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add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F |
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update all 4 lab_sea AD output. |
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checkpoint62d (2010/03/22) |
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o build_options: |
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remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles. |
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o remove unbalanced quote (single or double) in commented line of source code |
o remove unbalanced quote (single or double) in commented line of source code |
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(may cause some warning with some preprocessor/makedepend versions). |
(may cause some warning with some preprocessor/makedepend versions). |
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o pkg/seaice: |
o pkg/seaice: |
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