Problem with Spectre in Cadence Vitruoso

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MahmoudHassan

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hello
Iam trying to simulate simple circuit using Cadence Virtuoso SPECTRE (iam beginner)
I added Tech files provided by NCSU 1.5.1
and i can see all libraries added to my library manager
but when i simulate using SPECTRE
i got this error
ERROR Found by Spectre
unable to run circuit preprocessor (/lib/cpp).
No Such file or directory
i hope you really can help me in this problem

 

Did you click on 'Check and Save' button before running circuit? I think running circuit without checking and saving gives that error, I am not sure though.
 

Rohitchampion said:
Did you click on 'Check and Save' button before running circuit? I think running circuit without checking and saving gives that error, I am not sure though.
Click to expand...

First of all thanks a lot for caring
i tied it again and checked and saved before performing any analysis and i got the same error

- - - Updated - - -

Dominik Przyborowski said:
ln -s /usr/bin/cpp /lib/cpp as root
Click to expand...

i didn't get it i am not well familiar with linux
i would be grateful if you can give me more details please
 

Open terminal (i.e. xterm, aterm, gnome-terminal or konsole) login as root via "su" ("sudo su" in ubuntu) command and make a symbolic link for cpp (C preprocessor) using mentioned command "ln -s /usr/bin/cpp /lib/cpp"
 
Dominik Przyborowski said:
Open terminal (i.e. xterm, aterm, gnome-terminal or konsole) login as root via "su" ("sudo su" in ubuntu) command and make a symbolic link for cpp (C preprocessor) using mentioned command "ln -s /usr/bin/cpp /lib/cpp"
Click to expand...

Thanks a lot for your help
i tried it and i got error (no such file or directory) also
is this a file may be missed in my tech files ??!!!

 

oooh sorry for this fault and thanks a lot for your patience
but it gives me the same error even even after i wrote the command
 

Hmm, interesting. Looks like your spectre is incompatible with your system gcc version. What's your distribution, gcc and spectre version?

Maybe try to run spectre in verbose mode - edit your runSimulation script (should be in your_working_directory/Sim/cell_name/netlist/spectre/schematic/netlist/) and add "+debug +warn +info +error". Maybe it gets more info about reason of your error.
 
Thanks a lot Dominik
actually after a lot of trial and errors i downloaded the other techfile 1.6 for Cadence 6.1 rather than Cadence 5
and it worked with out errors
Thanks a lot for your help and your time really appreciated
 

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