Changes between Version 4 and Version 5 of 2016WP/CMCC_2016
- Timestamp:
- 2015-12-17T13:37:42+01:00 (9 years ago)
Legend:
- Unmodified
- Added
- Removed
- Modified
-
2016WP/CMCC_2016
v4 v5 30 30 ||CMCC-4 || BDY tool developpement and tests || || || || || || || || 31 31 ---- 32 === '''CMCC-1 - Scalability with MPI-OPENMP ''' TITLE===32 === '''CMCC-1 - Scalability with MPI-OPENMP ''' === 33 33 ''' Motivation: ''' Improve NEMO scalability. [[BR]] ''' Status :''' continuation of 2015 dev CMCC-1[[BR]] ''' Main tasks :''' 1. the activity started at the end of 2013 with the analysis of three OpenMP approaches (implemented using “mini-apps”) on several multicore architectures; the second step was the implementation of the hybrid version of the GYRE configuration using the best OpenMP approach. Results in terms of scalability were not so good. Thus, the porting and the analysis of the hybrid version (using “mini-apps”) on many core architectures (e.g. Xeon Phi) is needed, before extending the hybrid OpenMP/MPI approach to the entire code, in order to justify the effort of the development. This analysis is carrying out in 2015. The extension of the hybrid implementation on the entire code will depend on the results of this analysis. 2. analysis of scalability improvement using MPI3 new communications (e.g. collective neighbours communications), instead of point to point communications [[BR]] ''' Science Reviewer:''' [[BR]] ''' System Reviewer:''' [[BR]] ''' Deadline:''' [[BR]] ''' Priority:''' HIGH[[BR]] ''' Depends on:''' results of the same action in 2015 [[BR]] ''' Principal Investigator : ''' S. Mocavero (silvia.mocavero@cmcc.it) 34 34 35 36 === '''CMCC-2 - Suppress global communications ''' === 37 ''' Motivation: ''' Removing global communications could help improve the speed of NEMO[[BR]] ''' Status :''' Not started[[BR]] ''' Main tasks :''' CMCC will investigate which communications could be safely removed. Met Office will look at a more efficient implementation of functionality in stp_ctl. [[BR]] ''' Science Reviewer:''' [[BR]] ''' System Reviewer:''' [[BR]] ''' Deadline:''' [[BR]] ''' Priority:''' HIGH[[BR]] ''' Depends on:''' [[BR]] ''' Principal Investigator : ''' S. Mocavero (silvia.mocavero@cmcc.it) 38 39 35 40 === '''CMCC-3 - BDY for nested limited area models ''' === 36 ''' Motivation: '''Improving nesting techniques for regional and sub-regional circulation models nested into coarser models [BR]] ''' Status :''' [[BR]] ''' Main tasks :''' 1. Implementation of the generalised Flather’s condition for the barotropic component (Oddo & Pinardi, 2008); 2. Interpolation Constraint applied to total velocity field for preserving the transport conservation across open boundaries [[BR]] ''' Science Reviewer:''' Prof. N. Pinardi (University of Bologna [[BR]] ''' System Reviewer:''' [[BR]] ''' Deadline:''' [[BR]] ''' Priority:''' [[BR]] ''' Depends on:''' [[BR]] ''' Principal Investigator : ''' Stefania Ciliberti (stefania.ciliberti@cmcc.it) 41 ''' Motivation: '''Improving nesting techniques for regional and sub-regional circulation models nested into coarser models [BR]] ''' Status :''' [[BR]] ''' Main tasks :''' 1. Implementation of the generalised Flather’s condition for the barotropic component (Oddo & Pinardi, 2008); 2. Interpolation Constraint applied to total velocity field for preserving the transport conservation across open boundaries [[BR]] ''' Science Reviewer:''' Prof. N. Pinardi (University of Bologna [[BR]] ''' System Reviewer:''' [[BR]] ''' Deadline:''' [[BR]] ''' Priority:''' [[BR]] ''' Depends on:''' [[BR]] ''' Principal Investigator : ''' Stefania Ciliberti (stefania.ciliberti@cmcc.it) 42 43 44 === '''CMCC-4 - BDY tool developpement and tests ''' === 45 ''' Motivation: ''' [[BR]] ''' Status :''' [[BR]] ''' Main tasks :''' Finish last improvement of the BDY tool and add some documentation (by NERC) and test BDY tool (by CMCC) [[BR]] ''' Science Reviewer:''' [[BR]] ''' System Reviewer:''' [[BR]] ''' Deadline:''' [[BR]] ''' Priority:''' [[BR]] ''' Depends on:''' [[BR]] ''' Principal Investigator : ''' Stefania Ciliberti (stefania.ciliberti@cmcc.it) and James Harle
