Files
TheBandwidthBenchmark/MemoryHierarchy/bench.py
2019-08-21 16:03:23 +02:00

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3.0 KiB
Python
Executable File

#!/usr/bin/env python3
# =======================================================================================
#
# Author: Thomas Gruber (tg), thomas.gruber@googlemail.com
# Copyright (c) 2019 RRZE, University Erlangen-Nuremberg
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
# =======================================================================================
import sys, subprocess, re
default_regex = "([0-9.]+) ([0-9.]+)"
default_smt = 2
striad_types = {"seq" : 0,
"tp" : 1,
"ws" : 2
}
start_N = 100
max_N = 8000000
scale_N = 1.2
if len(sys.argv) < 3 or len(sys.argv) > 4:
print("Usage: {} <numcores> <seq|tp|ws> (<smt>)".format(sys.argv[0]))
print("Default <smt> value is {}".format(default_smt))
sys.exit(1)
numcores = int(sys.argv[1])
striad_type = sys.argv[2]
striad_t = 0
if striad_type in striad_types:
striad_t = striad_types.get(striad_type)
else:
print("Invalid type for striad. Available types: {}".format(", ".join(striad_types.keys())))
sys.exit(1)
smt = int(sys.argv[3]) if len(sys.argv) == 4 else default_smt
print("# striad {} {} {}".format(numcores, smt, striad_type))
N = start_N
while N < max_N:
performance = 0
result = None
runcmd = "likwid-pin -c E:S0:{}:1:{} -q ./striad {} {}".format(numcores, smt,
striad_t, N)
while performance == 0:
p = subprocess.Popen(runcmd, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
shell=True)
p.wait()
if p.returncode == 0:
result = p.stdout.read().decode('utf-8').strip()
m = re.search(default_regex, result)
if m:
performance = float(m.group(2))
else:
print("Execution failed: {}".format(runcmd))
break
print(result)
sys.stdout.flush()
N = int(N * scale_N)