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Dakota Reference Manual
Version 6.15
Explore and Predict with Confidence
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Sequence of sparse grid levels used in a multi-stage expansion
Alias: none
Argument(s): INTEGERLIST
Child Keywords:
Required/Optional | Description of Group | Dakota Keyword | Dakota Keyword Description | |
---|---|---|---|---|
Optional | dimension_preference | A set of weights specifying the realtive importance of each uncertain variable (dimension) | ||
Optional (Choose One) | Group 1 | nodal | Employ a nodal sparse grid construction in stochastic collocation | |
hierarchical | Employ a hierarchical sparse grid construction | |||
Optional (Choose One) | Quadrature Rule Growth (Group 2) | restricted | Restrict the growth rates for nested and non-nested rules can be synchronized for consistency. | |
unrestricted | Overide the default restriction of growth rates for nested and non-nested rules that are by defualt synchronized for consistency. | |||
Optional (Choose One) | Quadrature Rule Nesting (Group 3) | nested | Enforce use of nested quadrature rules if available | |
non_nested | Enforce use of non-nested quadrature rules |
Each level entry of the sparse_grid_level_sequence
applies to one expansion within a multi-stage expansion. Current multi-stage expansions that support sparse grid level sequences include multilevel polynomial chaos, multifidelity polynomial chaos, or multifidelity stochastic collocation expansions.
If adaptive refinement is active, then this sequence specifies the starting point for each level within either an individual or integrated refinement approach.
A corresponding scalar specification is documented at, e.g., sparse_grid_level
These keywords may also be of interest: