Changes between Version 72 and Version 73 of FeaturesofPdaf


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Timestamp:
Dec 20, 2019, 5:41:50 PM (4 years ago)
Author:
lnerger
Comment:

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  • FeaturesofPdaf

    v72 v73  
    7474In addition, the scalability of PDAF was examined with a real implementation with the finite element ocean model (FEOM, Danilov et al., A finite-element ocean model: Principles and evaluation. Ocean Modeling 6 (2004) 125-150). In these tests up to 4800 processor cores of a supercomputer have been used (see [PublicationsandPresentations Nerger and Hiller (2013)]).
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    76 To examine PDAF's behavior with large-scale cases, experiments with the simulated model have been performed. By now the biggest case had a state dimension of 7.86^.^10^11^. An observation vector of size 1.57^.^10^10^ was assimilated. For these experiments, the computations used 49152 processor cores. In this case, the distributed ensemble array occupied about 3 GBytes of memory for each core.
     76To examine PDAF's behavior with large-scale cases, experiments with the simulated model have been performed. By now the biggest case had a state dimension of 8.64^.^10^11^. An observation vector of size 1.73^.^10^10^ was assimilated. For these experiments, the computations used 57600 processor cores. In this case, the distributed ensemble array occupied about 2.9 GBytes of memory for each core.
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