Arthur Koucher

### Description The macros arrays are being grouped differently than not so long ago and it looks like it could be causing timing and WL degradation. ### Suggested Solution Improve...

### Description This should enlighten us about how much discrepancy may exist between MPL / GPL abstractions. ### Suggested Solution MPL wise: - Use the changes in #8665; - Skip...

### Description In order to see if we have a somewhat reasonable behavior or chaos. We should also evaluate if there is a discrepancy between the WL inside MPL and...

### Description Along other possible reasons for the timing degradation that we see in #3611 it's possible that the amount of free area in this design worsen the criticality of...

Use MPL clusters as regions to evaluate the quality of std cell clusters' placement

5

### Description This is a research project to help elucidate if the mpl view of the flow is actually reasonable. ### Suggested Solution _No response_ ### Additional Context _No response_

### Description The investigation in [#3402](https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts/issues/3402) showed that we require some sort of component in the cost function that looks at timing in order to improve correlation. ### Suggested Solution...

### Description During coarse shaping, we anneal to generate the tilings even for leaf macro clusters. These clusters can have their tilings computed by a simpler method i.e., enumerating the...

### Description Currently there are two controls that handle how utilization varies across runs: - target_util which handles the inflation of Mixed clusters and whose initial value corresponds to the...

mpl: re-work utilization handling

1

## Context When we're placing clusters, we generate multiple annealing runs in order to attempt convergence. For each new run, we decrease the amount of dead space i.e., increase the...