dot_frcg

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• Keywords Area
• method
• dot_frcg

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A conjugate gradient optimization method

Specification

Alias: none

Argument(s): none

	Required/Optional	Description of Group	Dakota Keyword	Dakota Keyword Description
	Optional		linear_inequality_constraint_matrix	Define coefficients of the linear inequality constraints
	Optional		linear_inequality_lower_bounds	Define lower bounds for the linear inequality constraint
	Optional		linear_inequality_upper_bounds	Define upper bounds for the linear inequality constraint
	Optional		linear_inequality_scale_types	Specify how each linear inequality constraint is scaled
	Optional		linear_inequality_scales	Define the characteristic values to scale linear inequalities
	Optional		linear_equality_constraint_matrix	Define coefficients of the linear equalities
	Optional		linear_equality_targets	Define target values for the linear equality constraints
	Optional		linear_equality_scale_types	Specify how each linear equality constraint is scaled
	Optional		linear_equality_scales	Define the characteristic values to scale linear equalities
	Optional		model_pointer	Identifier for model block to be used by a method

Description

This is a duplicated keyword. Please use dot instead.

We here provide a caution regarding dot_frcg. In DOT Version 4.20, we have noticed inconsistent behavior of this algorithm across different versions of Linux. Our best assessment is that it is due to different treatments of uninitialized variables. As we do not know the intention of the code authors and maintaining DOT source code is outside of the Dakota project scope, we have not made nor are we recommending any code changes to address this. However, all users who use dot_frcg in DOT Version 4.20 should be aware that results may not be reliable.

See Also

These keywords may also be of interest:

• frcg