From ef4ee1000df079724e0c0a087d93b75f8338645a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20R=C3=B6hl?= <Thomas.Roehl@googlemail.com>
Date: Wed, 21 Aug 2019 15:10:12 +0200
Subject: [PATCH] Python version of bench.pl

---
 MemoryHierarchy/bench.py | 75 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100755 MemoryHierarchy/bench.py

diff --git a/MemoryHierarchy/bench.py b/MemoryHierarchy/bench.py
new file mode 100755
index 0000000..5d12715
--- /dev/null
+++ b/MemoryHierarchy/bench.py
@@ -0,0 +1,75 @@
+#!/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
+
+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)
+    N = int(N * scale_N)