changeset 6aefb19ff369 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=6aefb19ff369
description:
config: Add an option to generate a random topology in memcheck
This change adds the option to use the memcheck with random memory
hierarchies at the moment limited to a maximum depth of 3 allowing
testing with uncommon topologies.
Change-Id: Id2c2fe82a8175d9a67eb4cd7f3d2e2720a809b60
Reviewed-by: Andreas Hansson <[email protected]>
diffstat:
configs/example/memcheck.py | 61 ++++++++++++++++++++++++++------------------
1 files changed, 36 insertions(+), 25 deletions(-)
diffs (89 lines):
diff -r e922938edf18 -r 6aefb19ff369 configs/example/memcheck.py
--- a/configs/example/memcheck.py Mon Dec 05 16:48:30 2016 -0500
+++ b/configs/example/memcheck.py Mon Dec 05 16:48:31 2016 -0500
@@ -40,6 +40,7 @@
# Andreas Hansson
import optparse
+import random
import sys
import m5
@@ -97,6 +98,8 @@
help="Colon-separated tester hierarchy specification, "
"see script comments for details "
"[default: %default]")
+parser.add_option("-r", "--random", action="store_true",
+ help="Generate a random tree topology")
parser.add_option("--sys-clock", action="store", type="string",
default='1GHz',
help = """Top-level clock for blocks running at system
@@ -110,35 +113,43 @@
# Start by parsing the command line options and do some basic sanity
# checking
-try:
- cachespec = [int(x) for x in options.caches.split(':')]
- testerspec = [int(x) for x in options.testers.split(':')]
-except:
- print "Error: Unable to parse caches or testers option"
- sys.exit(1)
-
-if len(cachespec) < 1:
- print "Error: Must have at least one level of caches"
- sys.exit(1)
-
-if len(cachespec) != len(testerspec) - 1:
- print "Error: Testers must have one element more than caches"
- sys.exit(1)
-
-if testerspec[-1] == 0:
- print "Error: Must have testers at the uppermost level"
- sys.exit(1)
-
-for t in testerspec:
- if t < 0:
- print "Error: Cannot have a negative number of testers"
+if options.random:
+ # Generate a tree with a valid number of testers
+ tree_depth = random.randint(1, 4)
+ cachespec = [random.randint(1, 3) for i in range(tree_depth)]
+ testerspec = [random.randint(1, 3) for i in range(tree_depth + 1)]
+ print "Generated random tree -c", ':'.join(map(str, cachespec)), \
+ "-t", ':'.join(map(str, testerspec))
+else:
+ try:
+ cachespec = [int(x) for x in options.caches.split(':')]
+ testerspec = [int(x) for x in options.testers.split(':')]
+ except:
+ print "Error: Unable to parse caches or testers option"
sys.exit(1)
-for c in cachespec:
- if c < 1:
- print "Error: Must have 1 or more caches at each level"
+ if len(cachespec) < 1:
+ print "Error: Must have at least one level of caches"
sys.exit(1)
+ if len(cachespec) != len(testerspec) - 1:
+ print "Error: Testers must have one element more than caches"
+ sys.exit(1)
+
+ if testerspec[-1] == 0:
+ print "Error: Must have testers at the uppermost level"
+ sys.exit(1)
+
+ for t in testerspec:
+ if t < 0:
+ print "Error: Cannot have a negative number of testers"
+ sys.exit(1)
+
+ for c in cachespec:
+ if c < 1:
+ print "Error: Must have 1 or more caches at each level"
+ sys.exit(1)
+
# Determine the tester multiplier for each level as the string
# elements are per subsystem and it fans out
multiplier = [1]
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