Loop unrolling threshold

Description

Specify the minimum array size width for which a for loop is generated.

Category: Optimization

Settings

Default: 5

Specify the array size at which the code generator begins to use a for loop instead of separate assignment statements to assign values.

When there are perfectly nested loops, the code generator uses a for loop if the product of the loop counts for loops in the perfect loop nest is greater than or equal to the threshold.

Dependency

This parameter requires a Simulink^® Coder™ license.

If you want to use this parameter for specifying the minimum array size width for parallel for-loops, Embedded Coder^® is required.

Command-Line Information

Parameter:


                            RollThreshold

Type: character vector

Value: valid value

Default: '5'

Recommended Settings

Application	Setting
Debugging	No impact
Traceability	No impact
Efficiency	>0
Safety precaution	No impact