Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 4/01/2024
Public

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Document Table of Contents

FITTER_EFFORT

Controls the fitter's trade-off between performance and compilation speed. Auto Fit adjusts the fitter optimization effort to minimize compilation time, while still achieving the design timing requirements. The Auto Fit Effort Desired Slack Margin option can be used to request that Auto Fit apply sufficient optimization effort to achieve additional timing margin. Standard Fit will use maximum effort regardless of the design's requirements, leading to higher compilation time and more margin on easier designs. For difficult designs, Auto Fit and Standard Fit will both use maximum effort. Fast Fit will decrease optimization effort to reduce compilation time, which may degrade design performance.

Type

Enumeration

Values

  • Auto Fit
  • Fast Fit
  • Standard Fit

Device Support

  • Arria® 10
  • Cyclone® 10 GX

Notes

This assignment is included in the Fitter report.

Syntax

set_global_assignment -name FITTER_EFFORT <value>

Default Value

Auto Fit