When doing hierarchical PEX , the LVS is incorrect with H-cells which is generated by H-cells analysis. In nmLVS , it is correct with H-cells.
PEX warning --- there are most cells in hcell not found in layout - ignored and most cells listed in the xcell file has no device and will not be extracted as an xcell.
And file xcells is same with hcells here.
Basically hierarchy LVS is correct in nmLVS with H-cells , and incorrect in hierarchical PEX LVS with H-cells.
Anyone can help? Thanks