Changes between Version 10 and Version 11 of ImplementationConceptOnline


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Timestamp:
Oct 1, 2013, 2:35:14 PM (10 years ago)
Author:
lnerger
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  • ImplementationConceptOnline

    v10 v11  
    11= Implementation Concept of the Online Mode =
     2
     3The online mode offers two implementation variants. The first one, called 'fully-parallel', assumes that you have a sufficient number of processes when running the data assimilation program so that all ensemble states can be propagated concurrently. The parallelism allows for a simplified implementation. The second implementation variant, called 'flexible', allows to run the assimilation program in a way so that a model task (set of processors running one model integration) can propagate several ensemble states successively. This implementation variant is a bit more complicated, because one has to ensure that the model can jump back in time.
     4
     5If the data assimilation can be run with a sufficient number of processors to use the 'fully-parallel' variant, we recommend to use it. With PDAF Version 1.10 particular interface routines '''PDAF_assimilate_X''' have been introduced to support this implementation style.
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    37== Online mode: Attaching PDAF to a model ==