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SimpleScalar Tools Overview Page}
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Announcements}
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New web pages!}
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The new domain and mailing lists are just about up!
  
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SimpleScalar Overview}
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{}@B {#start strong
What 
is the SimpleScalar tool set? }
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@PP
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This tool set consists of compiler, assembler, linker, simulation, and 
visualization tools for the SimpleScalar architecture. With this tool set,
the 
user can simulate real programs on a range of modern processors and
systems, 
using fast execution-driven simulation. We provide simulators ranging from
a 
fast functional simulator to a detailed, out-of-order issue processor that 
supports non-blocking caches, speculative execution, and state-of-the-art
branch 
prediction. The tool set is partly derived from the GNU software
development 
tools. It provides researchers with an easily extensible, portable, 
high-performance test bed for systems design. 

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Who wrote the SimpleScalar tool set?}
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@PP
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Much of the compiler tools are simply ports of the GNU software development 
tools to the SimpleScalar architecture. The ports as well as the simulators
were 
written by Todd Austin (while he was a Ph.D. student at the University of 
Wisconsin-Madison, working in the Multiscalar Group under {}@Underline {#start a attributes= (href=>http://www.cs.wisc.edu/~sohi)
Guri Sohi}
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; he is now with Intel Corp.). 
The tool set is now supported by {}@Underline {#start a attributes= (href=>http://www.cs.utexas.edu/users/dburger)
Doug Burger}
#end a
, who wrote the 
documentation for both releases 1.0 and 2.0. Contributions have also been
made 
by Manoj Franklin, {}@Underline {#start a attributes= (href=>http://www.cs.wisc.edu/~breach)
Scott Breach}
#end a
, 
and Kevin Skadron.

@PP
#start p
The development of this code was originally supported by grants from the 
National Science Foundation (grant CCR-9303030 plus software capitalization 
supplement) and the Office of Naval Research (grant N00014-93-1-0465). Many 
sources, all appreciated, currently fund development on several fronts.

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{}@B {#start strong
On which platforms does it run?}
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@PP
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SimpleScalar should port easily to any 32-bit flavor of UNIX, particularly 
those that support POSIX-compliant syscalls. The tools have been installed
(and 
should cleanly build) on the following systems:

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{}@B {#start strong
How can I keep informed as to new releases and 
announcements?}
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@PP
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We have set up serveral SimpleScalar mailing lists for various topics. To 
subscribe, go to the {}@Underline {#start a attributes= (href=>http://www.simplescalar.org/subscribe.html)
mailing list page}
#end a
 and 
follow the directions. {}@B {#start strong
How do I see old mailing list messages?}
#end strong


@PP
#start p
Steve Raasch at Michigan was kind enough to set up an SS mailing list 
archive. You should pore through these before sending a question to the
list, 
which goes to hundreds of people. Lots of the same questions gets asked
over and 
over, and the answers to new users' questions are likely to be in the
archive!

@PP
#start p
The archive is available at: {}@Underline {#start a attributes= (href=>http://ord.eecs.umich.edu/)
http:"/""/"ord.eecs.umich.edu"/"}
#end a
. 

@PP
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{}@B {#start strong
What's new in version 2.0?}
#end strong


@PP
#start p
We have added numerous features and utilities. The code has been cleaned up 
and is better documented, plus all known bugs have been fixed. The code now 
includes much more sophisticated arguments and statistics packages (that
allow 
you to use config files to set simulation parameters), plus cleaner
statistics 
reporting. We have provided a source-level debugger called DLite!, which
allows 
you to step through the program being simulated. We have also added a
pipeline 
tracer, which allows you to track pipeline state in the out-of-order
simulator. 
We have removed the simulators' dependence on the BFD utilities, making 
binutils' installation optional. There are two new simulators, sim-profile
and 
sim-cheetah, that do useful profiling and multiple simultaneous cache 
configuration simulations, respectively. Finally, we include pre-built
binaries, 
both small test binaries and a complete set of the SPEC95 binaries built
for 
SimpleScalar (both big- and little-endian).

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Last modified: Sun Feb 27 2000 23:29 by {}@Underline {#start a attributes= (href=>mailto:dburger@cs.utexas.edu)
Doug Burger}
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