Stats

Locked Locked
Replies 3
Subscribers 125
Views 12145
Members are here 0

This discussion has been locked.

You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Spectre hangs before popup the output log window for a long time when running with 900MB netlist.

I have successfully generated the netlist. However, if click run button in the ADE Explorer, the spectre take a long time to popup the output log window.

But if i run the simulation by the command line, the spectre will start immediately.

Is this normal?

I am using ic618 and spectre191

Andrew Beckett over 4 years ago
This could be several things:

There's a check at the beginning to see if constraints are being used in the hierarchy (for certain matching constraints) - that can take some time if it's a big hierarchy. Using envSetVal("adexl.gui" "disableConstraintsRead" 'boolean t) before opening ADE might help with that

It might be in the incremental netlister traversing the design to see if anything is out of date

It might be actually reenlisting everything? Do you have nlRenetlistAll=t set in the .simrc or .cdsinit files?

If you have distributed simulation set up, it could be starting the job that takes time?

In general, this is really hard to debug in a public forum - I suggest you contact customer support so that we can look at it properly.

Thanks,

Andrew
Cancel
Vote Up 0 Vote Down

Cancel
ShawnLogan over 4 years ago in reply to Andrew Beckett

Dear alteredC,

In your description of your problem, it was not clear to me which method you are using to submit the job in Explorer. Are you using LSCS (Large

Scale Cloud Simulation) or ICRP to submit your job in Explorer? You might consider trying LSCS. Some information on it may be found at URL:

support.cadence.com/.../ArticleAttachmentPortal

Shawn
Cancel
Vote Up 0 Vote Down

Cancel
alteredC over 4 years ago in reply to Andrew Beckett

Thanks for your reply.

By using the method in https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1Od0000000tjxFEAQ and setting "includeStatementForNetlistInSimInputFile" 'boolean t seems solved this issue.
Cancel
Vote Up 0 Vote Down

Cancel

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.