| # ODB:: Is there any way to unfrozen the master? (Changing the size of dbMaster during the code is running) |
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| Tool: OpenDB |
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| Subcategory: Usage question |
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| ## Conversation |
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| ### ApeachM |
| ```c++
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| // master setting
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| dbMaster *master = dbMaster::create(db_lib, lib_cell_name.c_str());
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| master->setWidth(width);
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| master->setHeight(height);
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| master->setType(dbMasterType::CORE);
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| ...
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| master->setFrozen();
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| // connect inst to the master
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| dbInst* inst = dbInst::create(db_block, master, instance_info->inst_name.c_str());
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| // now I want to change the size of inst, by unfrozen master and resize width and height
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| // Is my intention of the below pseudo-code possible?
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| master->setUnFrozen();
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| master->setWidth(new_width);
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| master->setHeight(new_height);
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| master->setFrozen();
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| ```
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| **I would like to know whether the above pseudo-code is possible.**
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| **I want to resize the cell size** after the cell size is already determined. (For example, after parsing lef and def).
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| But it seems like not to exist function for unfreezing.
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| If I want to change the cell size, then should I
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| 1. re-construct the instance,
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| 2. re-construct the new dbMaster,
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| 3. deleting the original instance,
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| 4. and re-connecting the new dbInst to the nets, which was connected with the original one?
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| I would like to know whether **is there another way, which is more simple**.
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| Thanks for the time for reading my question.
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| Sincerely. |
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| ### maliberty |
| Why are you freezing it in the first place? |
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| ### maliberty |
| setWidth & setHeight don't care about the frozen status afaik. The key thing is that the port list is frozen. You can't add a dbMTerm to a frozen master. |
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