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revision 1.1839 by mlosch, Thu Mar 7 08:34:26 2013 UTC revision 1.1840 by jmc, Sat Mar 9 22:09:26 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o verification, AD & TLM output:
8      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
9        additions and multiplications which affect results at machine truncation
10        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
11        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
12        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
13        digits of matching.
14  o pkg/seaice:  o pkg/seaice:
15    modify lsr-algorithm so that it vectorizes AND converges by using a     modify lsr-algorithm so that it vectorizes AND converges by using a
16    "zebra" method: split vector loop into two with step size 2; this     "zebra" method: split vector loop into two with step size 2; this
17    solves a general convergence problem for the JFNK solver on a vector     solves a general convergence problem for the JFNK solver on a vector
18    computer. It has the potential to even improve convergence for     computer. It has the potential to even improve convergence for
19    non-vector machines, but it does change the results so it is turned     non-vector machines, but it does change the results so it is turned
20    off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and     off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
21    SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h     SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
22    
23  checkpoint64e (2013/03/05)  checkpoint64e (2013/03/05)
24  o pkg/ecco and several verification experiments:  o pkg/ecco and several verification experiments:
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