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Optimize hpwl runtime. Fix error in via cost when L shape.

This commit is contained in:
Matt Guthaus 2019-01-30 08:49:47 -08:00
parent 82a09be026
commit aaf028cacf
1 changed files with 3 additions and 4 deletions
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7
compiler/router/signal_grid.py
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@ -142,10 +142,9 @@ class signal_grid(grid):
Either point can have positive or negative coordinates.
Include the via penalty if there is one.
"""
hpwl = max(abs(src.x-dest.x),abs(dest.x-src.x))
hpwl += max(abs(src.y-dest.y),abs(dest.y-src.y))
hpwl += max(abs(src.z-dest.z),abs(dest.z-src.z))
if src.x!=dest.x or src.y!=dest.y:
hpwl = abs(src.x-dest.x)
hpwl += abs(src.y-dest.y)
if src.x!=dest.x and src.y!=dest.y:
hpwl += grid.VIA_COST
return hpwl