Version 11 (modified by vichi, 8 years ago) (diff)

CMCC-NEMO team - 2012 actions

Last edited Timestamp?

members

Name Institution % Position
Srdjan Dobricic CMCC, Bologna 20 CMCC NEMO officer, scientist
Marcello Vichi CMCC, Bologna 20 scientist
Tomas Lovato CMCC, Bologna 20 junior scientist
William McKiver CMCC, Bologna 20 junior scientist
Esteban Gutierrez CMCC, Bologna 30 junior scientific programmer
Miriam Giorgini CMCC, Bologna 30 junior scientific programmer
Pier Giuseppe Fogli CMCC, Bologna 10 senior scientific programmer
Italo Epicoco CMCC, Lecce 20 scientist
Silvia Mocavero CMCC, Lecce 20 scientist
Alessandro D'Anca CMCC, Lecce 20 junior scientist
Luisa D'Amore SPACI (CMCC associate), Napoli 20 scientist
Luisa Carracciuolo SPACI (CMCC associate), Napoli 20 scientist

total weeks :
= 40 wk

Summary:

Action Brief description Status Branch name Trac ticket n° Wiki page name Reviewer(s) Review status Nb of weeks Ready for merge
CMCC-1
CMCC-2
CMCC-3
CMCC-4
CMCC-6 coupling with BFM Started https://forge.ipsl.jussieu.fr/nemo/browser/branches/2012/dev_r3379_CMCC6_topbfm #961 wiki:ticket/961? Ethè

CMCC.1 Scalability Optimization

Motivation: The optimization of NEMO scalability.
Status: to be started in January 2012
Main tasks:
* Introduction of a new software layer in the NEMO stack software exploiting numerical optimized and parallel libraries such as pBLAS, ScaLAPACK and PETSc.
* Introduction of a new parallel approach based on the functional parallelism for the tracers and the momentum equations. The parallelism will be based on spreading: (i) the computation of the tracers and momentum equations and (ii) the computation of the advection, Coriolis, pressure gradient and lateral diffusion terms.
* Implementation of a new hybrid parallel approach for exploiting the 3D domain decomposition (MPI on the horizontal domain, OpenMP on the vertical levels)
* Optimization of communications in the open boundary conditions
System Reviewer:
Deadline: 2012
Priority:Medium
Principal investigator: Italo Epicoco

CMCC.2 Modification of masks

Motivation: Expand the modification of masks to the EEN scheme
Status: to be started in January 2012
Main tasks: Evaluate the impact of fmask on the EEN scheme and eventually make modifications.
Science Reviewer: Gurvan Madec
Deadline: 2012
Priority: High
Principal investigator: Srdjan Dobricic

CMCC.3 Direct interface with data assimilation

Motivation: Interface with data assimilation systems
Status: to be started in January 2012
Main tasks: Develop software interface that will avoid the writing to the disk, provide the possibility to use a different domain decomposition in Nemo and the data assimilation, reduce the memory usage of Nemo when it is inactive.
Science Reviewer: MetOffice
Deadline: 2012-2013
Priority: Medium
Principal investigator: Srdjan Dobricic

CMCC.4 Divergence damping filter operator

Motivation: Additional diffusion on only the divergent component of the velocity could reduce the numerical noise at the high model topography (step topography, deep convection, etc.).
Status: to be started in January 2012
Main tasks: Add a routine that will apply the divergence filter in addition to the horizontal diffusion of the velocity.
System Reviewer:
Science Reviewer:
Deadline:
2012
Priority: High
Principal investigator: Srdjan Dobricic

CMCC.5 Vertical stability of increment fields

Motivation: Modify the increment field in order to reduce the vertical instabilities.
Status: Initial
Main tasks: Modify the ASM code to add the diagnostics of the vertical stability and the modificatyions to the increment fields.
System Reviewer:
Science Reviewer: Met Office
Deadline: 2012
Priority: High
Principal investigator: Srdjan Dobricic

CMCC.6 Compilation with external complex BGC models (continuation)

Motivation: Seamless coupling with external biogeochemical models (e.g. BFM, ERSEM)
Status: This action started in 2011 and was partly completed. FCM has been used successfully to compile both the BFM and ERSEM with NEMO using the NEMO compilation environment. It is still to be fully explored the possibility to use BLD/MY_SRC as the transfer directory for the coupling without adding additional CPP keys.
Main tasks: Use FCM to compile external BGC models with minimal changes to the NEMO code.
System Reviewer: C. Ethe'
Science Reviewer: C. Ethe', K. Edwards
Deadline: 2012
Priority: High
Principal investigator: Marcello Vichi

CMCC.7 Surface and lateral boundary conditions for tracers

Motivation: Add generic interfaces for surface and lateral boundary conditions for BGC tracers (river input, atmospheric deposition, open boundary conditions).
Status: to be started in January 2012
Main tasks: Port the interface used for transport routines to the surface and boundary condition routines currently used for T and S.
System Reviewer: C. Ethe'
Science Reviewer: C. Ethe', ??
Deadline: 2012
Priority: Medium/High?
Principal investigator: Marcello Vichi