[AP] Partial Legalizer #2765
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[AP] Partial Legalizer #2765
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This adds the Patial Legalizer block into VPR. A Partial Legalizer takes a partial placement (which likely has many overlapping blocks and is very illegal with blocks in the wrong tiles) and creates a more legal partial placement. These are often called spreaders since their main task is to spread blocks away from each other (the solver tends to put blocks on top of each other). Added a multi-commodity flow-based spreading partial legalizer based on the work by Darav et al. This algorithm was modified to work within the VPR infrastructure on any hypothetical architecture which can be expressed in VPR.
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This adds the Patial Legalizer block into VPR. A Partial Legalizer takes a partial placement (which likely has many overlapping blocks and is very illegal with blocks in the wrong tiles) and creates a more legal partial placement. These are often called spreaders since their main task is to spread blocks away from each other (the solver tends to put blocks on top of each other).
Added a multi-commodity flow-based spreading partial legalizer based on the work by Darav et al. This algorithm was modified to work within the VPR infrastructure on any hypothetical architecture which can be expressed in VPR.