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Calibre extraction memory issue

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anwei7208

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I have problems when using calibre xRC to do parasitic extraction on my chip. At the beginning, I do the job in the following step:
1. use calibre -lvs to create phdb file
2. use calibre -xrc -pdb to create pdb file
3. use calibre -xrc -fmt to format netlist

However, in the middle of extraction, the tool complained short of computer memory and stopped.

Then I tried the following steps:
1. use calibre -xrc -phdb to create phdb file
2. use calibre -xrc -pdb to create pdb file
3. use calibre -xrc -fmt to format netlist

The tool completed the first 2 steps but had an error in the 3rd step. It asked for a xdb file for cross reference.

My question is:
1. Do I have to use -lvs option to create phdb and xdb files?
2. If I use -xrc -phdb option to create phdb file, how do I get xdb file?

Thanks very much
 

onlymusic16

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anwei7208 said:
I have problems when using calibre xRC to do parasitic extraction on my chip. At the beginning, I do the job in the following step:
1. use calibre -lvs to create phdb file
2. use calibre -xrc -pdb to create pdb file
3. use calibre -xrc -fmt to format netlist

However, in the middle of extraction, the tool complained short of computer memory and stopped.

Then I tried the following steps:
1. use calibre -xrc -phdb to create phdb file
2. use calibre -xrc -pdb to create pdb file
3. use calibre -xrc -fmt to format netlist

The tool completed the first 2 steps but had an error in the 3rd step. It asked for a xdb file for cross reference.

My question is:
1. Do I have to use -lvs option to create phdb and xdb files?
2. If I use -xrc -phdb option to create phdb file, how do I get xdb file?

Thanks very much
After doing LVS, do a back annotation and then try to extract. Without the back-annotation, extractor will not know which nets to extract.

Also for doing lvs, you need to use extraction lvs deck file and not the regular lvs deck file. Please feel free to ask any questions!
 

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