Intel® Quartus® Prime Pro Edition User Guide: Design Optimization

ID 683641
Date 12/04/2023
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5.5.4.2. Fitter Aggressive Routability Optimization

The Fitter Aggressive Routability Optimizations logic option allows you to specify whether the Fitter aggressively optimizes for routability. Performing aggressive routability optimizations may decrease design speed, but may also reduce routing wire usage and routing time.

This option is useful if routing resources are resulting in no-fit errors, and you want to reduce routing wire use.

The table lists the settings for the Fitter Aggressive Routability Optimizations logic option.

Table 26.  Fitter Aggressive Routability Optimizations Logic Option Settings
Settings Description
Always The Fitter always performs aggressive routability optimizations. If you set the Fitter Aggressive Routability Optimizations logic option to Always, reducing wire utilization may affect the performance of your design.
Never The Fitter never performs aggressive routability optimizations. If improving timing is more important than reducing wire usage, then set this option to Automatically or Never.
Automatically The Fitter performs aggressive routability optimizations automatically, based on the routability and timing requirements of the design. If improving timing is more important than reducing wire usage, then set this option to Automatically or Never.