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AVEmap is a technology mapper for asynchronous burst-mode and
one-hot domino circuits. The tool accepts un-mapped circuit
implementations, a description of important input patterns with
their probability, and a library description. It then creates a
mapped circuit using library gates optimized for the average
performance.
The tool, developed by
Wei-Chun Chou
as part of his PhD thesis, is written within the USC POSE system
which itself is written on top of the Berkeley's SIS environment.
Wei-Chun is a recent PhD graduate of the
USC Async Group and his
related publications can also be found on the USC ASYNC group's
publication page
To use AVEmap, you have two choices. You can download the core
executables or download the source for the core code and re-compile.
For mapping burst-mode circuits, you may also want to download a
side-program, PatGen, which can automatically generate the necessary
input files for the core program
Dowloading Executables for the Core Program
Download SIS-POSE-AVEmap executable for Solaris.
pose-g.Z
Download SIS-POSE-AVEmap executable for Linux.
pose-g-linux.Z
Dowloading Source
Or, if you want to compile your own executable, please download SIS
source code, patch files, and readme files here or at Berkeley's
Design Technology
Warehouse website. Uncompress sis-1.2.tar.Z, sis-1.2.patch1.Z
and sis-1.2.patch-Solaris.Z. Extract (tar xvf) sis-1.2.tar. Follow
README-sis and README-Solaris to patch sis-1.2.patch1 and
sis-1.2.patch-Solaris. Make necessary changes in Makefiles (Please
see README-wcc).
sis-1.2.tar.Z
sis-1.2.patch-Solaris.Z
sis-1.2.patch1.Z
README-sis
README-Solaris
README-wcc
If you want to install SIS in Linux, you only need patch
sis-1.2.patch1 (check README-sis). POSE and AVEmap can be compiled
and are runnable in both Solaris and Linux. Check README-wcc for
Linux.
Download POSE source code here or at
USC Advanced Design Automation Lab
website of Professor Pedram's group. Put pose-1.1.tar.Z in directory
~sis-1.2/sis. Uncompress and extract it. This will give you a
README.install and source code (pose.tar) for POSE. Follow
README.install to continue POSE installation. There are some errors
in POSE source code and Makefiles. Please check README-wcc for
corrections.
pose-1.1.tar.Z
Download AVEmap source code. Put avemap.tar.Z in directory
~pose/power_map. Uncompress and extract it. Modify Makefile in
power_map to include AVEmap .c files. Compile SIS in ~sis to get an
executable which links SIS, POSE, and AVEmap in ~sis. You can also
further compile POSE in ~pose to get an executable in ~pose. Please
check README-wcc for details.
avemap.tar.Z
Beware that the AVEmap source code is not well-documented yet. If
you have hard time to understand those C code I wrote, please wait.
I am working on documenting the source code now.
Input Description Format
AVEmap inputs are BLIF files and pattern files. For example, if you
want to map the scsi bust-mode controller, you need an unmapped
scsi.blif and a pattern file scsi.pattern. BLIF is Berkeley's
netlist format, described in the SIS_paper.ps included in
sis-1.2.tar. A pattern file contains all interested input patterns
and their corresponding probabilities. The syntax of this file is
described in README-wcc.
PatGen: A Pattern Generation Program for
Burst-Mode Circuits
For burst-mode circuits, both BLIF files and pattern files can be
automatically generated by PatGen from corresponding verilog files
(.v) and 3D spec files (.unc). For example, PatGen reads scsi.v and
scsi.unc to generate scsi.blif and scsi.pattern. For one-hot domino
circuits, you must manually specify BLIF and pattern files.
Notice that AVEmap only maps combinational part of burst-mode
circuits. PatGen automatically removes the feedback networks from
input verilog files to generate the output BLIF files without
feedback networks. However, when running, AVEmap needs to understand
the link between outputs/state variables and corresponding fedback
inputs. So, AVEmap reads in .fb.info files which store the fedback
inputs of each output and state variable. README-wcc describes how
to run PatGen, the format of pattern files, and how to run AVEmap in
detail.
Download PatGen source code (patgen.tar.Z), verilog files and unc
files (ver+unc.tar.Z), scripts for running AVEmap (lib2.tar), and
feedback information of verilog files (fbinfo.tar).
patgen.tar.Z
ver+unc.tar.Z
lib2.tar
fbinfo.tar
Beware that PatGen was initially created for a power estimation
tool and thus has many routines and structures that are not
relevant. I am still working on cleaning up the irrelevant parts.
Notes
AVEmap has many options for running. Most of them are for
experimental use and are explained in README-wcc. Beware that in
future versions I plan on removing the unnecessary options.
Questions and Bug Reports
Questions and bug reports are most welcome. My email is:
wchou@eng.sun.com |
