.hist file

The .hist file is an OptiStruct ASCII format results file.

File Creation

This file is created when an optimization is performed. Creation of this file is controlled by the I/O Option DESHIS.

File Contents

This file contains the iteration history of the objective function, maximum constrain violation, design variables, DRESP1 type responses, and DRESP2 type responses. Contents of this file are controlled by the I/O Option HISOUT.

File Format

The section outlines the format of the .hist OptiStruct ASCII file.

The file uses the following format:
	iteration		Objective	Max_Const_Violation		Design_variables	DRESP1s	DESP2s
where:
		iteration			is the iteration number.
		Objective			is the value of the objective function.
		Max_Const_Violation			is the Maximum constraint violation in %.
		Design_variables			is the value of the design variables. Each design variable is given its own column.
		DRESP1s			is the value of the DRESP1s. Each DRESP1 type response is given its own column.
		DESP2s			is the value of the DRESP2s. Each DRESP2 type response is given its own column.

Comments

1.	The value of each design variable, DRESP1 response and DRESP2 response, is provided in its own column.