| # [WARNING DPL-0004/5/6] Warning Details | |
| Tool: Detailed Placement | |
| Subcategory: Detailed Placement issue | |
| ## Conversation | |
| ### dineshannayya | |
| Can any one give more details on the these WARNING & also how to solve these issue. | |
| [WARNING DPL-0004] Placed in rows check failed (4). | |
| [WARNING DPL-0005] Overlap check failed (1). | |
| [WARNING DPL-0006] Site check failed (4). | |
| I am trying to do detailed placement using openlane flow and 99% of block are hard core, only 32 cells are there at top-level | |
| There is good amount of free space available. still tool fails with these error. | |
| ### maliberty | |
| It is a check at the end of placement to make sure the result is non-overlapping. It suggests a placement failure but its hard to say anything more without a test case. Can you provide one? | |
| ### dineshannayya | |
| The project had 99% hard macro with less than 32 other cells and there was | |
| more than 30% free space. Still openroad detailed route was placing | |
| overlapping cells with hard macros & giving DPL-4/5/6 warning. | |
| Finally I noticed the issue was resolved after changing | |
| diamond_search_hight more than *250*. | |
| Can give more details on how increased diamond_search_hight value helped | |
| here ? | |
| On Thu, Jun 17, 2021 at 7:17 PM Matt Liberty ***@***.***> | |
| wrote: | |
| > It is a check at the end of placement to make sure the result is | |
| > non-overlapping. It suggests a placement failure but its hard to say | |
| > anything more without a test case. Can you provide one? | |
| > | |
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| ### maliberty | |
| I would guess that global placement left cells very far from any legal location. You might look at a post global-placement def to see. | |