Cadence

Cadence won't start, doesn't exit cleanly, or complains about lock files

1. Ensure you are not running Cadence anywhere (i.e. research server, linuxpool, amdpool, etc.)
2. To find your cadence processes run the command

   ps -elf | grep cadence | grep <login id>
   

   For example:

   ps \-elf \| grep cadence \| grep yyy33
   {{noformat}}
   You can omit the "| grep cadence" just to see all your processes.
   # You can kill all your processes, including your login shell, by typing
   {{noformat}}
   kill \-9 \-1
   {{noformat}}
   # Check your processes again per step 2 until you are sure your cadence processes are gone.
   # You may need to clean up Cadence lock files.   You can run the command:
   

   find . -name .snapshot -prune -o -name}} cdslck {{-exec rm {} \;

   h2. When starting Cadence, an error indicates that cds.lib can not be read.
   
   In some instances, it indicates there might be a problem with cdsd daemon.
   
   Various security updates affect NFS periodically. You need to set the environment variable DD_DONT_DO_OS_LOCKS before starting cadence.
   
   Example:
   

   prompt> setenv DD_DONT_DO_OS_LOCKS TRUE
   prompt> icfb

   h2. Spectre Memory Errror
   
   Spectre gives you Out of Memory Errors
   
   

   Warning from spectre during PNoise analysis `pnoise'.
   WARNING (SPCRTRF-15142): The 'maxsidebands' parameter in analysis `pnoise' has the unusually small value of 5.
   Using too small a value degrades accuracy because this parameter controls the amount of noise folding considered.

   Using the operating-point information generated by PSS analysis `pss', you get:
   
   

   Mem Used: 579124 kB (Memory Exhausted)

   It was found by Xiao Wang that if you pass the "-64" command line switch to the simulation, the problem goes away. The "-64" command line switch tells Spectre to use the 64 bit version.
   
   h2. Setting up Cadence Environment
   
   You have to set the application install directory environment variables for the tools you want to use. Below is an example for all of them:
   
   

   #
3. Path to application install directories
   #
   set CDSHOME = /opt/cadence/ic
   set ASSURAHOME = /opt/cadence/assura
   set ANLSHOME = /opt/cadence/anls
   set ASSURAHOME = /opt/cadence/assura
   set CONFRMLHOME = /opt/cadence/confrml
   set EMGRHOME = /opt/cadence/emgr
   set ETHOME = /opt/cadence/et
   set ETSHOME = /opt/cadence/ets
   set EXTHOME = /opt/cadence/ext
   set ICHOME = /opt/cadence/ic
   set IFVHOME = /opt/cadence/ifv
   set IUSHOME = /opt/cadence/ius
   set MMSIMHOME = /opt/cadence/mmsim
   set PACIFICHOME = /opt/cadence/pacific
   set RCHOME = /opt/cadence/rc
   set SOCHOME = /opt/cadence/soc
   set SPBHOME = /opt/cadence/spb
   set CTOSHOME = /opt/cadence/ctos

   Then you set paths to the executables for each of the apps, for example:
   
   

   #
4. Path to Cadence Executables
   #
   set dfiiPath = ($CDSHOME/tools/bin $CDSHOME/tools/dfII/bin)
   set assuraPath = ($ASSURAHOME/tools/bin $ASSURAHOME/tools/dfII/bin)
   set anlsPath = ( $ANLSHOME/tools/bin $ANLSHOME/tools/dfII/bin )
   set confrmlPath = ( $CONFRMLHOME/tools/bin $CONFRMLHOME/tools/dfII/bin)
   set emgrPath = ( $EMGRHOME/tools/bin $EMGRHOME/tools/dfII/bin)
   set etPath = ( $ETHOME/tools/bin $ETHOME/tools/dfII/bin )
   set etsPath = ( $ETSHOME/tools/bin $ETSHOME/tools/dfII/bin )
   set extPath = ( $EXTHOME/tools/bin $EXTHOME/tools/dfII/bin )
   set ifvPath = ( $IFVHOME/tools/bin $IFVHOME/tools/dfII/bin )
   set iusPath = ( $IUSHOME/tools/bin $IUSHOME/tools/dfII/bin )
   set mmsimPath = ( $MMSIMHOME/tools/bin $MMSIMHOME/tools/dfII/bin )
   set pacificPath = ( $PACIFICHOME/tools/bin $PACIFICHOME/tools/dfII/bin )
   set rcPath = ( $RCHOME/tools/bin $RCHOME/tools/dfII/bin )
   set socPath = ( $SOCHOME/tools/bin $SOCHOME/tools/dfII/bin )
   set spbPath = ( $SPBHOME/tools/bin SPBHOME/tools/dfII/bin )
   set ctosPath = ( $CTOSHOME/tools/bin $CTOSHOME/tools/dfII/bin )

   Then you have to update your actual UNIX path:
   
   

   #
5. Set Path
   #

set path = ( $PATH \
$dfiiPath \
$assuraPath \
$anlsPath\
$confrmlPath\
$emgrPath\
$etPath\
$etsPath\
$extPath\
$iusPath\
$ifvPath\
$iusPath\
$mmsimPath\
$pacificPath\
$rcPath\
$socPath\
$spbPath \
$ctosPath )

Add an entry to point to the licensing information:

#

1. Generic License File Setting
   #
   #setenv LM_LICENSE_FILE 5280@flexa.ece.cornell.edu,5280@flexa.ece.cornell.edu,5280@flexa.ece.cornell.edu:$LM_LICENSE_FIE

#

1. Cadence Specific License File Setting
   #
   setenv CDS_LIC_FILE 5280@flexa.ece.cornell.edu,5280@flexb.ece.cornell.edu,5280@flexc.ece.cornell.edu

   Set up the cadence environment variables
   
   

   #
2. Cadence Specific Environment Variables
   #

setenv CADENCE_BASE /opt/cadence
setenv CDS_INST_DIR $

/ic
setenv CDS_INSTALL_DIR $

/tools/dfII
setenv CLS_CDSD_COMPATIBILITY_LOCKING NO
setenv SPECTRE_DEFAULTS " -E "
setenv CDS_Netlisting_Mode Analog
setenv CDS_DEFAULT_BROWSER firefox
setenv CDS_AUTO_64BIT ALL

#

1. Other Cadence Environment Varibles
   #
   #CDS_LOG_PATH
   #CDS_LOAD_ENV
   #CDS_PROMPT_CKOUT
   #CDS_AUTO_CKOUT
   #CDS_PROMPT_CKIN
   #CDS_AUTO_CKIN
   #CDS_IBM_FULLDUMP
   #CDS_LOG_VERSION
   #CDS_SHM_ADDR