Re: [openram-dev-group] Analytical characterization technology dependent?

[Matthew Guthaus]

Rongmei,

These are in the tech.py which is described on slides 27-33 of the documentation. Some of the analytical parameters may have been copied from another technology and were not changed. If so, we can add them if you provide a better value -- these are meant as examples only.

Matt

On Wed, Sep 18, 2019 at 7:31 AM Rongmei CHEN <mei201...@gmail.com> wrote:

Hi Matt,

  I am wondering whether the analytical characterization of memory macro is technology dependent. When I changed tech_name in configuration file, the analytical simulation results were exactly the same. How should I make the analytical simulation results technology dependent?

  I understand that the analytical calculation doesn't do spice simulation but instead doing RC  calculation (r, c defined in technology setup?). But I have no idea how they are calculated and how it is related to technology setup.

  Look forward to your reply. Thanks in advance.

Best,

Rongmei

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Matthew Guthaus

Associate Dean of Graduate Studies

Professor, Computer Science & Engineering

Baskin School of Engineering

University of California Santa Cruz

https://www.soe.ucsc.edu/people/mrg

[Rongmei CHEN]

Hi Professor,

  I found the calculation parameters for analytical characterization in tech.py file but I didn't find the corresponding calculation equations in anywhere. Could you kindly tell me where the analytical calculation equations are?

Best,

Rongmei

On Wednesday, September 18, 2019 at 8:21:25 PM UTC+2, Matthew Guthaus wrote:

Rongmei,

These are in the tech.py which is described on slides 27-33 of the documentation. Some of the analytical parameters may have been copied from another technology and were not changed. If so, we can add them if you provide a better value -- these are meant as examples only.

Matt

On Wed, Sep 18, 2019 at 7:31 AM Rongmei CHEN <mei201...@gmail.com> wrote:

Hi Matt,

  I am wondering whether the analytical characterization of memory macro is technology dependent. When I changed tech_name in configuration file, the analytical simulation results were exactly the same. How should I make the analytical simulation results technology dependent?

  I understand that the analytical calculation doesn't do spice simulation but instead doing RC  calculation (r, c defined in technology setup?). But I have no idea how they are calculated and how it is related to technology setup.

  Look forward to your reply. Thanks in advance.

Best,

Rongmei

--
https://openram.soe.ucsc.edu
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[Matthew Guthaus]

It is distributed in each module and then we traverse the design netlist adding them. This has gone through some revisions and we are doing even more now. Make sure you are up to date with dev.

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