NAME

       graywolf - placement tool for digital VLSI design

SYNOPSIS

       graywolf [options] designName [windowId] [flowdirectory]

DESCRIPTION

       This  is  a  utility used to perform placement of digital VLSI designs. It is based on some code from the
       early 90s and it is one of the building blocks of the open source qflow digital design flow.

OPTIONS

       -n     no graphics

       -d     prints debug info and performs extensive error checking

       -g     general mode

       -p     pick mode

       -w     parasite mode will inherit a window

USAGE

       Typically, you would be in a directory with a [DESIGN].cel file and a [DESIGN].par file and then run:

          graywolf [DESIGN]

       where [DESIGN] is the file name of the design. More information about the input and output files is found
       below.

       However, it is recommended to use the qflow digital design flow instead  of  running  graywolf  directly.
       qflow prepares the input files from standardized files, and converts the output to standardized files.

INPUT

       Two  input  files  are  necessary  to  run  graywolf.  A .cel file containing the design, and a .par file
       containing the parameters which define the technology. The .cel file may be created from a  .blif  design
       file and a .lef library file with the script "blif2cel.tcl" in the qflow package.

OUTPUT

       The  main  output from graywolf is a .pl1 file containing the layout of the design. This may be converted
       to a .def file using the script "place2def.tcl" in the qflow package.  A  .def  file  is  a  standardized
       description of a layout.

SEE ALSO

       qflow(1)

AUTHOR

       This  manual  page was written by Ruben Undheim <ruben.undheim@gmail.com> for the Debian project (and may
       be used by others).

                                                 11 October 2015                                     GRAYWOLF(1)