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dreamheater
Joined: 03 Jan 2005
Posts: 11
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 04 Jan 2005 8:07 SPICE question: .del lib |
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| When running different process corners using .alter to switch in-and-out different libraries (such as TT, SF, FS, FF, SS), is it necessary to use .del lib to delete the previous libraries? SPICE seems working fine without the .del lib command cards. The .del lib makes running process corners very inconvenient because I have to know which libraries proceed this .alter and then delete them.
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totoro
Joined: 27 Jun 2004
Posts: 85
Helped: 10
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| 04 Jan 2005 9:01 Re: SPICE question: .del lib |
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| it seems no necessary
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jordan76
Joined: 25 Mar 2004
Posts: 177
Helped: 4
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| 04 Jan 2005 9:20 Re: SPICE question: .del lib |
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Personally I recommend using .del lib before switching to other process corner since it is always good practice to make your spice deck more readable.
My best guess is: if you do not use .del lib before switching to other process corner, it may occupy more memory than necessary which will increase the computation time at least.
regards,
jordan76
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jiangwp
Joined: 27 Jul 2004
Posts: 184
Helped: 9
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| 05 Jan 2005 13:06 Re: SPICE question: .del lib |
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I think you should use the .del command.
If you do not use the .del , and only user the .alter to change the technology , the corner undelted is simulated repeatly.
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