Dakota Reference Manual  Version 6.15
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sparse_grid_level_sequence


Sequence of sparse grid levels used in a multi-stage expansion

Specification

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

Description

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

See Also

These keywords may also be of interest: