LayoutSynth92 - From the 1992 International Workshop on Layout
			Synthesis,  North Carolina.


All of the benchmark data and documentation files are in ./bench.  All
data from the LayoutSynth90 is also linked here for your convenience in
browsing. Each benchmark directory is also available as a single compressed
tar file (with extension "tar.Z") for easy retrieval using ftp.

---------------------------------------------------------------------------

NOTE: Updates to the 1992 Layout Synthesis benchmark set are available
      in the compressed tar files "update.3.27.92.tar.Z" and
      "update.5.11.92.tar.Z". These files should be retrieved along with
      the other benchmark files and unpacked using "uncompress" and 
      "tar xf" as described in the next section. Most of the significant
      updates and corrections are described in the ANNOUNCEMENT files in 
      the "bench/" directory.
                                                       Maitreya Sengupta.
                                                    [sengupta@cbl.ncsu.edu]
----------------------------------------------------------------------------

Quick Info:
===========

The new benchmarks and explanations added this year are in the compressed
tar archive bench92.tar.Z.  The files from 1990 are in the archives
bench90.tar.Z and redun90.tar.Z.  To obtain a complete set of benchmarks,
retrieve all three of these files.

If you already have the benchmarks from 1990, all you need is the file
compressed tar file bench92.tar.Z.  Furthermore, retrieve floorplanning
benchmark 'fan' (a buggy net name has been fixed in it).

IMPORTANT: Before un-tarring bench92.tar, remove or archive the contents
of the directories: bench/v2 and bench/yal2vpnr.  The new relase fixes a
couple of bugs which surfaced when processing the new benchmarks.


Long Info:
==========
		How To Obtain Benchmark Data

The Layout Synthesis 1992 benchmark data can be obtained from CBL in
one of two ways: by FTP over Internet or on tape.

1.0 Internet FTP

If you have access to an Internet connection you may establish an FTP
connection to host "mcnc.mcnc.org" and copy the files using the "get"
command. The login name is "anonymous" and the password is any string
(we request that you use your e-mail address). The files are in the
"pub/Benchmark_dirs/LayoutSynth92" directory.

The command sequence to establish a connection to the host machine is:

	ftp cbl.ncsu.edu
	anonymous 	(in response to the "Name" prompt)
	(your id) 	(in response to the "password" prompt)

If you have a UNIX(tm) machine on the Internet, check to see if you
have the "uncompress" and "tar" commands available. Shipping the
benchmarks over in a compressed tar format is much faster than in
individual ASCII files.

	cd pub/Benchmark_dirs/LayoutSynth92
	get LayoutSynth92.readme
	get LayoutSynth92.list
	binary
	get bench90.tar.Z
	get redun90.tar.Z
	get bench92.tar.Z
	bye

on your local machine, uncompress the file with the commands

	uncompress bench90.tar.Z
	uncompress redun90.tar.Z
	uncompress bench92.tar.Z

un-tar the files with the commands (see the Quick Info section earlier
for the explanation of why removing files below is necessary).

	tar xf bench90.tar
	tar xf redun90.tar
	/bin/rm -rf bench/v2 bench/yal2vpnr
	tar xf bench92.tar



FOR NON-UNIX USERS:

If you do not have the "compress" and "tar" utilities available, you
will have to copy the files explicitly. The actual files are stored
under the directory "bench" and its numerous sub-directories:

	bench/block, bench/flex, bench/floorplan, bench/gatearr, bench/mixed,
	bench/compact, bench/compact/c123_2.subcells,
	bench/compact/mul.subcells

As an added complication, the translators and some of the other
programs in the bench directory will not work properly under a
different directory structure.  Simply "mget"ing all of the files into
one directory on the local machine will destroy the original directory
structure.  You should re-create the original structure and use ftp to
copy the files into the correct places.  You can use the "! mkdir"
command to make a new directory on your local machine from inside ftp.
The following set of commands for ftp will do this:

	cd pub/benchmark/Benchmark_dirs/LayoutSynth92
	get LayoutSynth92.readme
	get LayoutSynth92.list
	prompt			# Should turn prompting off.
	! mkdir bench		# make "bench" dir on local machine.
	lcd bench		# move to "bench" on local machine.
	cd bench		# move to "bench" on remote machine.
	mget *			# get files from remote to local "bench".
	!mkdir block		# make "bench/block" on local.
	lcd block		#  etc.
	cd block
	mget *
	! mkdir ../compact
	lcd ../compact
	cd ../compact
	mget *
	! mkdir c123_2.subcells
	lcd c123_2.subcells
	cd c123_2.subcells
	mget *
	! mkdir ../mul.subcells
	lcd mul.subcells
	cd mul.subcells
	! mkdir ../../flex
	lcd ../../flex
	cd ../../flex
	mget *
	! mkdir ../floorplan
	lcd ../floorplan
	cd ../floorplan
	mget *
	! mkdir ../gatearr
	lcd ../gatearr
	cd ../gatearr
	mget *
	! mkdir ../mixed
	lcd ../mixed
	cd ../mixed
	mget *
	! mkdir ../stdcell.92
	lcd ../stdcell.92
	cd ../stdcell.92
	mget *
	! mkdir ../block.92
	lcd ../block.92
	cd ../block.92
	mget *
	bye


2.0 Benchmarks on Tape
 
We are prepared to send you a tape in containing the benchmark
directory in TAR format.
Contact benchmarks@cbl.ncsu.edu for details.
 
_________________________________________________________________________
 
* For further information about benchmarks and how to retrieve them,
* please contact the Benchmark Administrator by email at
* "benchmarks@cbl.ncsu.edu".
 
==========================================================================
__________________________________________________________________________