Changes between Version 13 and Version 14 of Users/Agenda/2018-07-11


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Timestamp:
2018-07-11T08:40:16+02:00 (2 years ago)
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clevy
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  • Users/Agenda/2018-07-11

    v13 v14  
    1010 
    1111'''11 July 2018''' [[BR]] 
    12 The new 4.0.beta release of NEMO is now available for beta testing. The offical 4.0 release is scheduled for end 2018. The users and projects willing to make preliminary tests and contribute to the reliability of the future 4.0 release are very welcome to start testing this new version. This page gathers all the information needed for a quick start, and all feedbacks are welcome, see below. 
     12The new 4.0.beta release of NEMO is now available for beta testing. The official 4.0 release is scheduled for end 2018. The users and projects willing to make preliminary tests and contribute to the reliability of the future 4.0 release are very welcome to start testing this new 4.0.beta version. This page gathers all the information needed for a quick start, and all feedbacks are welcome, see below. 
    1313 
    1414== Download the nemo4.0.beta release 
     
    4949 
    5050== Release notes 
    51      * AGRIF: 
     51     * '''AGRIF for embedded zooms: 
    5252         * Now compatible with new sea ice component 
    5353         * Now compatible with z* coordinate 
     
    5555         * Added vertical refinement (beta) 
    5656         * Nesting tools for setup now up to date and working 
    57      * HPC 
    58          * Reduce number of MPI communications (suppression of redundant communications, gather multiple communications into one) 
    59          * Back to standard dynamical allocation (remove of wrk_alloc/dealloc statements) 
    60          * Generalised lbc_lnk and lbc_nfd (simplification) 
    61          * Unify mppini  (simplification) 
    62          * Use non uniform jpi/jpj with dynamic allocation to avoid ghost rows/columns  (simplification) 
    63          * Message passing re coded 
    64      * XIOS2 as default and optionally available for restarts 
    65      * ENHANCEMENTS 
     57 
     58     * '''Enhancements 
    6659         * Fix for tracer conservation with split explicit free surface 
    6760         * bulk formulae : move to aerobulk package (Brodeau et al. 2016), i.e. NCAR, COARE and ECMWF bulk (remove Clio and MFS bulk) 
     
    7265         * Lateral physics (LDF): scale aware setting of eddy viscosity and diffusivity 
    7366         * vorticity: 2 new energy conserving scheme:  ENT with Coriolis defined at T-point (better for Flux form) and EET a variant of EEN where e3t is used instead of e3f (solved the issue with e3f specification but is not enstrophy conserving) 
    74      * SIMPLIFICATION 
    75          * revised structure of namlist_ref/_cfg and default reference values. 
    76          * lateral physics (LDF): simplification of user interface and removal of CPP keys 
    77          * vertical physics (ZDF) (modularity, share shear production calculation between TKE and GKS, removal of all ZDF CPP keys, removal of avmu & avmv, minimization of MPP comm.: ~15 removed) 
    78          * remove the split-explicit ZDF scheme for both TRA and DYN 
    79          * remove the acceleration of convergence 
    80      * ROBUSTNESS 
    81          * configuration interface completely rewritten (DOM module mainly suppressed , and in place: domain_cfg.nc file, or usr_def module) 
    82      * TEST Cases 
     67 
     68     * '''Test Cases 
    8369         * The first test cases available for now are: 
    8470            * CANAL: 
     
    9076            * WAT: 
    9177 
    92      * WAVE coupling 
     78     * '''Wave coupling 
    9379         * coupled interface to external wave model 
    9480         * large scale wave interaction process added in momentum and tracer equations 
    95      * SEA iCE 
     81 
     82     * ''' New sea-ice component 
    9683         * New SI3 component (in place of LIMx), improvements in natural and computational sciences so as friendlier user interface 
    9784         * Fully compatible with AGRIF  
    9885         * Benefitting from the gathering of multiple communications into one  
    99      * TOP 
     86 
     87     * '''Passive tracer TOP and biogeochemical PISCES components 
    10088        * The passive tracers transport component was redesigned toward a modular structure and users can enable each module directly through logical flags in namelist_top (no more fortran macros!).  
    10189        * TOP currently accounts for the following 5 modules: CFC contains inorganic carbon tracers (CFC11/CFC12/SF6), MY_TRC is a template for new modules (or external couplings), AGE deals with water age tracking, C14 as a radiocarbon passive tracer, and the companion ecosystem model PISCES. 
     
    10795          * Carbonate chemistry is based on MOCSY 2.0 routines (see Orr and Epitalon, 2015), by complying also with CMIP6 standards. 
    10896          * Ecosystem components can be optionally modelled by means of explicit nutrient quotas (PISCES-QUOTA) 
    109      * Collaborative Development Environment         
     97 
     98     * '''High Performance Computing: performances improvements 
     99         * Reduce number of MPI communications (suppression of redundant communications, gather multiple communications into one) 
     100         * Back to standard dynamical allocation (remove of wrk_alloc/dealloc statements) 
     101         * XIOS software for IOs version 2 as default, and optionally available for restarts 
     102 
     103     * '''Simplification and robustness 
     104         * revised structure of namlist_ref/_cfg and default reference values. 
     105         * lateral physics (LDF): simplification of user interface and removal of CPP keys 
     106         * vertical physics (ZDF) (modularity, share shear production calculation between TKE and GKS, removal of all ZDF CPP keys, removal of avmu & avmv, minimization of MPP comm.: ~15 removed) 
     107         * remove the split-explicit ZDF scheme for both TRA and DYN 
     108         * remove the acceleration of convergence 
     109         * Generalised lbc_lnk and lbc_nfd  
     110         * Unify mppini  
     111         * Use non uniform jpi/jpj with dynamic allocation to avoid ghost rows/columns   
     112         * MPI Message passing re coded  
     113         * Configuration interface completely rewritten (DOM module mainly suppressed , and in place: domain_cfg.nc file, or usr_def module) 
     114 
     115     * '''Collaborative Development Environment         
    110116         * Access to information on NEMO wiki reorganised through portals  for users/developers/System Team and complete refactoring of all wiki pages and their layout 
    111117         * Reorganisation of svn repository to be compliant with usual directory tree and faciltate building of NEMO executable