在globalroute之后出现waring:
WARNING (NREX-28) The height of the first routing layer METAL1 is 0.000000
WARNING (NREX-29) The metal thickness of routing layer METAL1 is 0.000000
globalroute中的报告:
# Congestion Analysis: (blocked Gcells are excluded from the statistics)
# OverCon OverCon OverCon OverCon
# #Gcell #Gcell #Gcell #Gcell %Gcell
# Layer (1-3) (4-7) (8-10) (11-14) OverCon
# --------------------------------------------------------------------------
# Metal 1 24(0.60%) 0(0.00%) 0(0.00%) 0(0.00%) (0.60%)
# Metal 2 676(17.4%) 241(6.21%) 27(0.70%) 8(0.21%) (24.5%)
# Metal 3 36(0.91%) 0(0.00%) 0(0.00%) 0(0.00%) (0.91%)
# Metal 4 22(0.56%) 0(0.00%) 0(0.00%) 0(0.00%) (0.56%)
# --------------------------------------------------------------------------
# Total 758(4.82%) 241(1.53%) 27(0.17%) 8(0.05%) (6.57%)
#Total number of DRC violations = 965
#Total number of violations on LAYER METAL1 = 590
#Total number of violations on LAYER METAL2 = 219
#Total number of violations on LAYER METAL3 = 156
#Total number of violations on LAYER METAL4 = 0
我将core utilization设为0.55还是有400多个DRC violation。
还请版主指引
在globalroute之后出现waring:
WARNING (NREX-28) The height of the first routing layer METAL1 is 0.000000
WARNING (NREX-29) The metal thickness of routing layer METAL1 is 0.000000