I have netlist generated from yosys, using a simple tcl script, not from the package, so is it possible to use that netlist for PD without going through synthesis

@Manish Mahajan the default

user_project_wrapper

is configured with

ELABORATE_ONLY

set so that no synthesis occurs. However, it is also configured with no standard cell rows, decap, fill, or tap placement. It just places a hard macro and connects the power grid and wiring to the caravel user interface ports. You could try

ELABORATE_ONLY

and then enable standard cell rows, decap, fill and tap placement. Do you need to worry about timing?

I have very loose timing constraints, I have a better machine now and the utilization is about 10GB as I observe it running.