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Paul Community Fellow Offline Posts: 351 Switzerland	Calling Spectre Turbo mode from Ocean Script Nov 24^th, 2008, 8:41am Hi, Can anyone provide a hint on how to set Spectre to "turbo" mode in an Ocean script? I set the turbo option in ADE, but when I print the settings as Ocean script, there is no trace of this mode. I use CDS 5.10.41 with MMSIM 7.0.1. Thanks Paul
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bernd Senior Member Offline Posts: 229 Munich/Germany	Re: Calling Spectre Turbo mode from Ocean Script Reply #1 - Nov 24^th, 2008, 9:24am You could try setting the environment variable for the "userCmdLineOption" in ADE via SKILL at the beginning of your OCEAN script. `envSetVal( "spectre.envOpts" "userCmdLineOption" 'string "+turbo" )` * bernd
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Paul Community Fellow Offline Posts: 351 Switzerland	Re: Calling Spectre Turbo mode from Ocean Script Reply #2 - Nov 25^th, 2008, 12:05am Great input Bernd, works as desired. Thanks! Paul
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Andrew Beckett

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Life, don't talk to
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Posts: 1742
Bracknell, UK

Re: Calling Spectre Turbo mode from Ocean Script
Reply #3 - Jan 2^nd, 2009, 8:52am

In more recent IC5141 ISRs (I don't know which subversion you're using), this is now supported - exporting an OCEAN script includes statements such as:

Code:

option( ?categ 'turboOpts � � � 'psrFmax �1
 � � � �'psrOption �"Default"
 � � � �'psrSwitch �t
 � � � �'numThreads �1
 � � � �'mtOption �"Auto"
 � � � �'errorLevel �"Liberal"
 � � � �'turboSwitch �t
)

Regards,

Andrew.

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Rooney New Member Offline Posts: 9	Re: Calling Spectre Turbo mode from Ocean Script Reply #4 - Jan 5^th, 2009, 5:44pm Can anyone please clarify me the following doubts? 1. What is Turbo mode of spectre? what is the advantage in using that mode? 2. What are the other modes of Spectre? When they are used? 3. Are there any other modes for any other tools?
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Andrew Beckett

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Re: Calling Spectre Turbo mode from Ocean Script
Reply #5 - Jan 6^th, 2009, 1:53am

Quote:

1. What is Turbo mode of spectre? what is the advantage in using that mode?

It adjusts/optimises the algorithms, and simulations (primarily for circuits with a reasonable number of devices) run faster, without compromising accuracy. It also has an improved "liberal" errpreset which is more accurate than standard non-turbo liberal (for transient).
Quote:

2. What are the other modes of Spectre? When they are used?

There's also a parasitic reduction option.
Quote:

3. Are there any other modes for any other tools?

Well, this is rather a vague question... however, AMS Designer also has access to the turbo mode (when using spectre as the solver) and Ultrasim will have a turbo mode from MMSIM71 (due shortly).

Regards,

Andrew.

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