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Environment Settings in Virtuoso

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Environment settings and initialization instructions for Cadence applications are specified in .cdsenv and .cdsinit files, respectively. You can also use these files to customize your design environment settings. Your system administrator copies a customized version of .cdsenv and .cdsinit files to your local site: your_install_dir/tools/dfII/local, there is an option to maintain local copies in your home directory. This file is present only if your site administrator copies a customized environment file to this location.

Before customizing these files you must customize your home directory. A home directory is specified by a tilde, such as ~/.cshrc.To make UNIX-level changes affecting file locations, paths, and display devices, you need to edit your .cshrc file, .login file or .profile file in your home directory. When the Cadence software loads, it reads the site-specific settings first and the individual settings last, so settings in your home directory override system and group settings.

Design Environment Customization

You can customize the following files in the Cadence software:

• Log File
  To specify a unique log file name using the CDS_LOG_VERSION environment variable, set the variable before starting the Cadence software or include the setenv command in your .cshrc file:

  setenv CDS_LOG_VERSION {sequential|pid}

  where,
  • sequential adds a sequential number to the name of the log file, such as CDS.log.1 or CDS.log.2
  • pid adds the number of the UNIX process to the name of the log file, such as CDS.log.1719 or CDS.log.2250
  
  You can also set these additional variables in your .cshrc file.
  

  Variable	Description
  CDS_COLOR_MODE	Sets monochrome display of Cadence software. Value: BlackAndWhite
  DISPLAY	Sets the visual display of the X Window System
  FMHOME	Sets the path to FrameMaker product directory if not in the default directory

• Sample Files
  The Cadence software includes commented sample files in install_dir/tools/dfII/samples. The install_dir directory is the directory where the Cadence software is installed. You can also customize parts of your environment using the Options menu in the Command Interpreter Window.
  Each file has a different format:
  • The .cdsenv file contains settings of the form
    

    tool[.section]    setting    type    value 

  • The .cdsinit file contains executable commands for custom software initialization such as bindkey definitions, custom SKILL procedures, and user preferences.
• Help Files
  To specify the location of your Doc Assistant files, add the following command to your .cshrc file, .login file, or .profile file:

  setenv HELPDIR install_dir/tools/dfII/myHelp

  where myHelp is the name of the Help directory you want.
• Search Path
  To add the installation directory to your UNIX search path, use one of the following commands:

  set path = ($PATH install_dir/tools/dfII/bin)

  setenv PATH $PATH:install_dir/tools/dfII/bin

  Additionally, you can specify .cdsenv and.cdsinit in your csfLookupConfig file, Virtuoso uses the Cadence Setup Search File mechanism to find this file.

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