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Library preparation for the MultiVT libraries

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Hi,

I wanted to work on the "MultiVT" libraries in my design, can any one suggest me how to go about this ?

1. In normal flow we will just import lib files, is it same in case multvt libs? if yes then how to differentiate?

2. how to diffrentiate HVT & RVT cells in the design (ie how to calculate the % of HVT & RVT cells)

3. what will be PD Flow(physical design steps)

Please suggest.

Thanks & Regards,
kulprashant


Originally posted in cdnusers.org by kulprashant05
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    Hi Kulprashant,

    You really don't have to do anything different. Just load in the .lib of both libraries. The cells should have different names, like INV and INVTH, or INV_HVT and INV_RVT, or something similar. I don't know of an automatic way to get the % of HVT vs RVT, but it should be easy to write a script to parse the netlist or a summary report file. As for the flow, it will be pretty much the same, but check the docs for setOptMode -leakagePowerEffort and set it to what you think is best for your design goals.

    Hope that helps,

    - Kari


    Originally posted in cdnusers.org by Kari
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  • archive

    Hi Kulprashant,

    You really don't have to do anything different. Just load in the .lib of both libraries. The cells should have different names, like INV and INVTH, or INV_HVT and INV_RVT, or something similar. I don't know of an automatic way to get the % of HVT vs RVT, but it should be easy to write a script to parse the netlist or a summary report file. As for the flow, it will be pretty much the same, but check the docs for setOptMode -leakagePowerEffort and set it to what you think is best for your design goals.

    Hope that helps,

    - Kari


    Originally posted in cdnusers.org by Kari
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