README revision 10235 
1regression.py
2
3Copyright (c) 2010-2014 Advanced Micro Devices, Inc.
4All rights reserved.
5
6Redistribution and use in source and binary forms, with or without
7modification, are permitted provided that the following conditions are
8met: redistributions of source code must retain the above copyright
9notice, this list of conditions and the following disclaimer;
10redistributions in binary form must reproduce the above copyright
11notice, this list of conditions and the following disclaimer in the
12documentation and/or other materials provided with the distribution;
13neither the name of the copyright holders nor the names of its
14contributors may be used to endorse or promote products derived from
15this software without specific prior written permission.
16
17THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29Authors: Yasuko Eckert <yasuko.eckert@amd.com>
30         Joel Hestness <hestness@cs.wisc.edu> (while interning at AMD)
31
32
33Introduction
34============
35
36This regression tester is for the McPAT power model.
37This tester can compile and runs McPAT on the input contained in the
38specified directory, and then compares the output to that of a golden run in
39order to ensure that specific power and area calculations do not change.
40
41Nine tests are included in the initial version of this tester in the directories:
42    $GEM5/ext/mcpat/regression/test-*
43
44In each directory, you will find a regression test input file
45(power_region0.xml) and the golden-run output (region0.out.bak).
46The tester's output file is saved as region0.out, which is then checked against
47region0.out.bak.
48
49
50Options
51=======
52--help, -h      Show a help message and exit
53--build, -b     Build McPAT before running tests
54--cleanup, -c   Clean up the specified regression directory
55--force, -f     Force run regression even if directory isn't set up
56--maketest, -m  Set up the specified test directory
57--verbose, -v   Print verbose output
58
59
60How to Use
61==========
62
63The regression tester must be invoked from the McPAT directory.
64
65% cd $GEM5/ext/mcpat
66
67
68To run all regression tests:
69% ./regression/regression.py ./regression/
70
71
72To run a particular regression test, specify its directory to the tester:
73% ./regression/regression.py ./regression/test-0
74
75Specify the "-v" option to see a diff of the regression output.
76