Changes between Version 4 and Version 5 of 2020WP/HPC-04_mcastril_Mixed_Precision_implementation


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Timestamp:
2020-01-21T11:54:22+01:00 (9 months ago)
Author:
mcastril
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  • 2020WP/HPC-04_mcastril_Mixed_Precision_implementation

    v4 v5  
    2222=== Description 
    2323 
     24The use of mixed precision can provide a substantial speed-up for models in which the numerical precision has been overengineered. This speedup can come as a result of improvements in both computing and memory efficiency. 
     25 
    2426This action is a follow up from HPC-08_Mixed_precision in 2018 WP. It was linked to two tickets (#2039 and #2040), that were respectively devoted to the assessment and implementation of Mixed Precision in NEMO. After the evaluation stage has been completed (together with the preparation of the necessary tools to do the mentioned assessment and the implementation), this year will be time for the implementation. 
    2527 
    2628Oriol Tintó (oriol.tinto@bsc.es) is the Principal Investigator for the whole task. ECMWF is a collaborator for this phase and will have a principal role on the validation in coupled simulations. 
    2729 
     30The analysis procedure is documented in the following publication: 
     31 
     3210.5194/gmd-12-3135-2019 
     33 
    2834=== Implementation 
    2935 
    30 a) BSC developing a prototype based on NEMO 4.0.1; Further testing done at ECMWF with this version.   
     36The implementation will follow the steps below: 
     37 
     38a) BSC developing a prototype based on NEMO 4.0.1; Further testing done at ECMWF with this version. At this stage the prototype is ready to test. 
    3139 
    3240b) Provide demonstrator for NEMO ST (how? => Scientific Publication, Branch in NEMO rep.) (BSC)