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Modgen is very slow

BartEbalobo over 1 year ago

Dear everyone,

I am using IC23.1 studio version, I am struggling to use modgen every modification I made it's hang out and slow.

Do anyone can help me how can I resolve and know cause the issue of slowness.

This image below is flagging in my CIW:

Do this cause the slowness of modgen?

Thanks.

RobMan over 1 year ago

I have seen reference to such issues in TSMCN28, 20 and potentially 16. Are you using one of these nodes? It seems it's largely due to the pCells (callbacks). I'm not sure it's ever been resolved.

How big are the modgens you create?
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BartEbalobo over 1 year ago in reply to RobMan

Hello RobMan,

I am working on tsmc 22nm, with a small block with a simple diff pair Group array. and its frustrating modifying modgen, it takes 10 to 15 mins in every modify we make.

Thank you for the reply..
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MichR 10 months ago

Is there any update on this? I am also working with TSMCN28 and Modgen on IC23.1 is really slow..
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BartEbalobo 10 months ago in reply to MichR

not yet resolved. still very slow. Cadence is also very silent on this issue.
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Andrew Beckett 10 months ago in reply to BartEbalobo

Have either of you reported this to customer support? There’s a limit to how much we can investigate this based on incomplete information via the community forums…
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BartEbalobo 10 months ago in reply to Andrew Beckett

Hi Andrew, already reported it 3 months ago, and the Cadence support team has no response, they just suddenly close the case I raised.
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Andrew Beckett 10 months ago in reply to BartEbalobo

I checked that case.

The case was closed immediately after it was opened, with a detailed reply stating that we no longer support case submissions via email (this has been the situation for several years now). Instead, you should submit the case through http://support.cadence.com as this allows clearer identification of the product you're using, plus can often give suggestions which may avoid the need to submit a case in the first place (probably not in this case, but in general that's true).

Maybe something blocked the email reply at your end, but I can see it was sent.

Regards,

Andrew
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BartEbalobo 10 months ago in reply to Andrew Beckett

Thank you Andrew.

Can you please give us the exact link to file a ticket? I a, trying to find it.

regards.
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BartEbalobo 10 months ago in reply to BartEbalobo

is this the correct submission of the case?

Submit Case (cadence.com)
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Andrew Beckett 10 months ago in reply to BartEbalobo

Yes. After logging into http://support.cadence.com you go to Cases→Submit Case which is the link you shared.

Andrew
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