ERROR : Placement area is zero. on non-rectangle floorplan

xiaoyisimonguo

Please help, I could run through all Place and route tasks if my floor plan started with rectangular 4 sided
but I tried started with "L" shaped floorplan with area defined in top.def
we could see netlist and def read successfully, see the picture below


But when I ran create_fp_placement
an ERROR popped up:
*** Performing global placement...
Transferring Data From Milkyway...
Number of plan group pins = 0
ERROR : Placement area is zero.
Error: Failed to create placement netlist. (VFP-001)
Global placement did not complete


Please help

zzjseu

man VFP-001

xiaoyisimonguo

回复 2# zzjseu


   Thank you, for the reply
What could I do to make the area not zero?

Rectangular floorplan had no problem at create_fp_placement stage

AlvinRolling

   

xiaoyisimonguo 发表于 2017-8-27 06:02
回复 2# zzjseu

Hi. I just found out the reason after a million trials.
It seems to be an internal bug of ICC.
But a work-around is that use `initialize_rectilinear_block` after `create_boundary`, instead of using `create_floorplan`.

randolpha

   

AlvinRolling 发表于 2021-2-17 22:40
Hi. I just found out the reason after a million trials.
It seems to be an internal bug of ICC.
Bu ...

which version of ICC did you use?

AlvinRolling

   

randolpha 发表于 2021-2-18 08:50
which version of ICC did you use?

O-2018.06