I have noticed that the current run_vtr_flow.py script does not properly handle the --sdc_file option. Whenever this option is used VPR complains that "SDC file '' not found" but continues through the flow and just uses default timing constraints. It looks like this is just an issue from the script not copying the file to the provided temp directory as doing so manually works without any issues.

Expected Behaviour

Running vtr_flow with the --sdc parameter should work properly and correctly pass timing constraints to the flow.

Your Environment

• VTR revision used:
  Running on the most recent version of VTR as of writing (15c5340)