In Non-Project Mode, each implementation step is launched with a configurable Tcl
command, and the design is compiled in memory. The implementation steps must be run in a
specific order, as shown in the Non-Project Mode Tcl Script Example. Optionally, you can
run steps such as power_opt_design or phys_opt_design
as needed. Instead of run strategies, which are only supported in Project Mode, you can
use various commands to control the tool behavior. For more information, see the
Vivado Design Suite User Guide:
Implementation (UG904).
It is important to write design checkpoints after critical design steps for design analysis and constraints definition. With the exception of generating a bitstream, design checkpoints are not intended to be used as starting points to continue the design process. They are merely snapshots of the design for analysis and constraint definition.