BLACAD Group Released Software
The most current released software is access controlled; please register for access, and then check the secured tools area.
Older versions (with some source)
Some of the following software
packages are available for download without registration. Documentation for the tools is
being developed, and when a complete distribution is ready, it will be
made generally available. If you're interested in an early release,
commercial use, or encounter a bug, please contact us directly. This
software is made available for research purposes only. The point of
contact is Prof. Patrick H. Madden, email email@example.com.
Some tools are also available for download through CVS; these versions are
the most up to date (but not necessarily the most stable). Please
email if you would like CVS access.
||Linux X86 Binary
|Feng Shui 2.6 Beta2
Standard Cell/Mixed Block/Structural Placer
Tile-based Global Router
Functionality Based Area Router
|TimberWolf to GSRC
Standard Cell Global Router
(developed in the UCLA VLSI CAD Lab)
Generic C Library
A Tcl/Tk based editor
A Tcl/Tk based LaTeX bibliography manager
A Tcl/Tk based generic GUI
Feng Shui Standard Cell Placer
Feng Shui is a recursive bisection
based placer; given a standard cell netlist, it repeatedly bisects the list,
assigning each cluster to a portion of the placement area. Branch-and-bound
reordering is performed at the lowest level, with a sliding window on each
row. Prior to bisecting each cluster, a massive k-way bisection is
performed, obtaining initial cluster assignments; the hMetis partitioner
is then applied to clean up each bisection. The tool supports both
TimberWolf (commercial) and GSRC formats, and has been integrated into the
SIGDA EDA Hub, running on Purdue's PUNCH system.
Feng Shui Tile-based Global
The routing approach is aggressive
over-the-cell; the routing substrate is modeled as a set of (multi-layer)
tiles, with support for variable width routing and arbitrary graph structure.
The router determines paths for each connection through the substrate, with
the objective of minimizing congestion, vias, and wirelength. This
router will be integrated with the functionality based area router.
Feng Shui Functionality Based
This software is supported by
NSF grant CCR-9988222; the router avoids rip-up and reroute methods, and
supports variable width routing, variable spacing, and is not restricted
to preferred direction routing.
V2 Benchmark Translator
V2 is a translator, originally
written by Kris Kozminski at MCNC; it converted from the VPNR format into
YAL, EDIF, and TimberWolf4.2. We have added code to it, allowing support
for the commercial TimberWolf formats. In order to perform timing
optimization, signal directions are required; these were stripped off in
the conversion to TimberWolf4.2, motivating the development of a direct
translation into the new TimberWolf format. Many standard cell benchmarks
are available from MCNC in the VPNR format; these have also been converted
into new GSRC formats, which should reduce confusion in interpretation.
TimberWolf to GSRC Benchmark
The GSRC formats are designed
to simplify parsing of data, and to eliminate confusion in interpretation;
the number of rows, row spacings, and pad placements are fixed. This
translator utilizes a TimberWolf parser from the GCL library. If you
wish to recompile this tool, you'll need to install the GCL library.
Iterative Deletion Based
GCL Generic C Library
The Generic C Library contains
utility routines for linked lists, heaps, hash tables, etc.. Additionally,
basic algorithms such as shortest path, quicksort, and others are included.
Of interest to the VLSI CAD community would be implementations of the Steiner
tree algorithm of Borah, Owen, and Irwin, and also parsers for TimberWolf
EDGE -- A Tcl/Tk based editor
TkBib -- A Tcl/Tk based LaTeX
GGUI -- A Tcl/Tk based generic