Compiler Settings Device Page (Settings Dialog Box) You open this dialog box by clicking Assignments > Device. Optimization Modes Allow Register Retiming The Allow Register Retiming option on the Register Optimization tab controls whether or not to globally disable retiming. When turned on, the Compiler automatically performs register retiming optimizations, moving registers through combinational logic. When turned off, the Compiler prevents any retiming optimizations on a global scale. Fast Preserve Option Enabling the Fast Preserve option on the Incremental Compile tab specifies that the Compiler can simplify a preserved partition to only interface logic. Migration Devices Dialog Box You open this dialog box by clicking Assignments > Device > Migration Devices. Recommendations Dialog Box This dialog box automatically appears if you implement a change in the Settings dialog box that differs from the settings that Intel recommends for optimal design performance. The contents of this dialog box vary, depending on the settings currently specified in your design. Related reference Compilation Process Settings Page (Settings Dialog Box) More Compilation Process Settings Dialog Box