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2020WP/HPC-04_mcastril_Mixed_Precision_implementation (diff) – NEMO

Changes between Version 7 and Version 8 of 2020WP/HPC-04_mcastril_Mixed_Precision_implementation


Ignore:
Timestamp:
2020-06-02T17:23:40+02:00 (3 years ago)
Author:
orioltp
Comment:

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  • 2020WP/HPC-04_mcastril_Mixed_Precision_implementation

    v7 v8  
    5858 
    5959== Tests 
     60a) When the option is not activated the code should pass all the sette test and should not display any difference in results nor computational performance. 
    6061 
    61 ''...'' 
     62b) When the option is activated there will be many differences that should be appreciable: 
     63        - The implementation **must significantly reduce** run time and memory fingerprint. The impact is expected to be bigger with heavy workloads, being reduced when the run time start to be constrained by communication. 
     64        - The results **won't** be bit-to-bit indentical to double-precision runs, although the runs in mixed-precision must be reproducible. 
     65        - Due to the non-linear nature of the model, **differences in the results are expected**. Tracer conservation or other magnitudes **can be measured in order to ensure that the differences remain below an acceptable threshold**. 
    6266 
    6367== Review