Synopsys Design-Compiler

dc_shell

Although DesignCompiler by Synopsys is totally controllable, most user scripts for synthesis tend to ignore the problem of returning a meaningful exis status, so that most runs of DesignCompiler finish with the "Thank you" message and exit with status 0. To detect errors in the compilation, most customers follow the execution of dc_shell with a grep for errors on the log file.

You can use the script $VOVDIR/eda/Synopsys/vdc_shell as a template to combine dc_shell and grep into a single tool that returns a meaningful exit status.

Environment variables

setenv SNPSLMD_QUEUE      1
setenv SNPS_MAX_QUEUETIME 7200

Exclusions for dc_shell

# In file exclude.tcl

# This is to allow multiple executions of dc_shell 
# in the same directory.
vtk_exclude_rule -regexp {/command.log$}

# This is to exclude the Synopsys cache from the trace 
# when using vrt as a wrapper.  
vtk_exclude_rule -regexp {/synopsys_cache/}