Download SPARK Parallelizing High-Level Synthesis Tool

Disclaimer Download Documentation Discussion Group Email List Developers Copyright


The SPARK synthesis software is now available for Windows, Linux and Solaris Platforms. Please read the disclaimer, copyright, and the documentation before downloading the software.
SPARK now has a Windows release and it also has full support for Xilinx XST/ISE.
New: SPARK version 1.3 for Windows is out!! SPARK version 1.3 for Linux  is coming soon.

Release Date Version Download Change Log
05-20-05 1.3 Linux (Built on Gentoo)
Windows (built on XP)
Version 1.2 to 1.3
2-5-04 1.2 Linux (Redhat 9.0)
Solaris 5.7
Windows (built on XP)
Version 1.1 to 1.2
1-12-04 1.1 Linux (Redhat 9.0)
Solaris 5.7
Windows XP
Version 1.0 to 1.1
12-29-03 1.0 Linux(Redhat 9.0)
Solaris 5.7
Version 0.9 to 1.0
11-10-03 0.9 Linux(Redhat 9.0)
Solaris 5.7
Version 0.8 to 0.9
0.8 Linux(Redhat 9.0)
Solaris 5.7
Fixed some file name problems

To view the output graphs produced by SPARK, you need the "dotty" executable from the Graphviz graph drawing tool. This is available at:

If you use our tool for your work/research, please refer to one of our papers (and possibly also to the SPARK website) in your publication. University, research groups may contact us to explore open-source non-commercial licensing options.

Email us your feedback either in the discussion forum or by sending email to .


Some basic information first:

The User manual and tutorial list information on installation and using the SPARK tool. If you have trouble after reading the documentation, please contact Note that for both the documents below, the PDF is a better formatted document.

NOTE: The SPARK Tutorial and the setup scripts have been written assuming the use of the "tcsh" shell. If you are using other shells (bash, sh), you may have to modify the setup scripts.

SPARK Users Discussion Group

You can join the SPARK users discussion group here:

Email List

If you are interested in being on the SPARK email list, please fill in the following registration form. All information will be kept absolutely private and the list will only be used to inform you about SPARK updates, announcements, new releases and so on.




SPARK was developed by Sumit Gupta with contributions to the underlying framework by Nick Savoiu.

This software is Copyright 2003-2004 The Regents of the University of California. All Rights Reserved.

Permission to use, copy, modify, and distribute this software and its documentation for educational, research and non-profit purposes, without fee, and without a written agreement is hereby granted, provided that the above copyright notice, this paragraph and the following three paragraphs appear in all copies.

Permission to incorporate this software into commercial products or for use in a commercial setting may be obtained by contacting:

Technology Transfer Office
9500 Gilman Drive, Mail Code 0910
University of California
La Jolla, CA 92093-0910
(858) 534-5815

University, research groups may contact Spark team at "spark at" to coordinate their no-cost access to the source code.

This distribution is preliminary and may not be robust. Download at your own risk ! The software program and documentation are supplied "as is" without any accompanying services from the University of Calfornia. Furthermore, the University of California does not warrant that the operation of the program will be uninterrupted or error-free. The end-user understands that the program was developed for research purposes and is advised not to rely exclusively on the program for any reason. In no event shall the University of California be liable to any party for direct, indirect, special, incidental, or consequential damages, including lost profits, arising out of the use of this software and its documentation, even if the University of California has been advised of the possibility of such damages. The University of California specifically disclaims any warranties, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. The software provided hereunder is on an "as is" basis, and the University of California has no obligations to provide maintenance, support, updates, enhancements, or modifications.

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Maintained by Sumit Gupta <sumitg at>