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Grouping to accommodate parallel execution of multiple activities when multiple CPU available. Parallel activities should only be configured when the underlying activities have no data dependency. If data dependency exists, activities should be executed in sequence. This may be forced by embedding them as part of a sequence group. Since FEWS 2017.01 it is optionally possible to run the parallel activities on multiple forecasting shells. This can be done with the multipleForecastingShells=true or forecastingShellCount=n for ensembles and location loops.
workflow:sequence
Grouping to enforce sequential execution of multiple activities as they generally have data dependencies. Typically used in workflows where parallel activities are defined to clarify which activities have be to executed in sequence.
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