The-OpenROAD-Project / The-OpenROAD-Project/OpenROAD

Web GUI layout viewer doesn't reflect a flipped chiplet correctly

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#11,329 0 comments 0 reactions 1 assignee View on GitHub

@jorge-ferreira-pii is already working on this.

Since Sep 3, 2026.

web
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Verilog
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Description

Description

Each chiplet instance carries its own orientation, and a chiplet can be flipped. The Web GUI layout viewer does not reflect that: every chiplet is presented with the same face towards the viewer and the same layer order, regardless of its orientation. A die that is face-down is drawn exactly as if it were face-up. So not just MZ, but we need to also consider MX, MY, R90, and all the orientations

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