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