mpl: fix fixed terminals for cluster of unplaced IOs and max cost #6689
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Signed-off-by: Arthur Koucher <[email protected]>
…side SA Signed-off-by: Arthur Koucher <[email protected]>
Signed-off-by: Arthur Koucher <[email protected]>
…ments Signed-off-by: Arthur Koucher <[email protected]>
![github-actions[bot]](https://avatars.githubusercontent.com/in/15368?s=60&v=4){kind=small}
Signed-off-by: Arthur Koucher <[email protected]>
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clang-tidy review says "All clean, LGTM! 👍" |
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Running Secure-CI |
maliberty
approved these changes
Feb 11, 2025
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Code is ok; waiting on CI to merge |
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The failure in the regression test seems to triggered by a bug that is not related to the changes here. However, it needs fixing before this PR gets merged. I'm working on it. |
This was referenced Feb 12, 2025
Signed-off-by: Arthur Koucher <[email protected]>
AcKoucher
changed the title
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@maliberty I found another bug in the same scope of the changes here. I pushed the fix and updated the description. Could you take another look? PS this is still needs #6697 to make the regression tests consistent. |
1. Cache actual offset die area instead of just the half
perimeter and use the cached die to compute the max
dist for max cost.
2. Some renaming.
Signed-off-by: Arthur Koucher <[email protected]>
|
I pushed one more change that will help me rebasing second phase of the IO constraints' project branch with the changes here. |
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Fix #6668
What is Wrong
In the context of the WL computation inside SA for when the target cluster is a cluster of unplaced IOs:
Context and Changes
Originally, a fixed terminal in HierRTLMP was just a Soft/Hard Macro with the shape of a point (area = 0).
With the new IOs' abstraction implemented in #5809, for clusters of unplaced IOs, we need to have a Soft/Hard Macro object with a proper shape inside SA in order to compute the distance to the closest boundary correctly.
As this needs to happen for both cluster placement (Soft) and macro placement (Hard) I made the constructors used to create fixed terminals in both Hard/Soft Macro have the same arguments to be able to template the function that uses these constructors.
I.e., this PR ensures that: