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)