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runQRC for OA flow

diablo

Hi all, 

I have OpenAccess flow in encounter. For signoff timing, I am using signoff extraction using runQRC in SocEncounter 8.1. From the document:

The following command extracts RC parasitics using technology file qrc.tch, and cell library file library_new, and generates a reduced SPEF file qrc.spef:

runQRC -outputFileName qrc.spef -techFile qrc.tch 
   -libraryName ./library_new

 When using the above command for signoff extraction in OA flow, what is the library_new should be? I tried to list the name of OA lib of standard cells but it gives error saying incorrect library director.  Are we supposed to give library name, or point to the library path? I have tried both and it doesn't work. Any suggestions? Thanks..

 

 

Parents

  • Thanks for replying Vineet. Instead of LEF flow for encounter, we have OA flow for encounter. We wanted to easily transfer and modify designs among encounter and virtuoso for our mixed signal physical design flow, that's why we choose to do OA flow in encounter. Now, we have all our design saved in OA database, I am not sure how to do signoff timing using QRC in encounter without having to use LEF.

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  • Thanks for replying Vineet. Instead of LEF flow for encounter, we have OA flow for encounter. We wanted to easily transfer and modify designs among encounter and virtuoso for our mixed signal physical design flow, that's why we choose to do OA flow in encounter. Now, we have all our design saved in OA database, I am not sure how to do signoff timing using QRC in encounter without having to use LEF.

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