ae: add pci-latency scripts

experiments/ae/pci-latency.sh

+#!/bin/bash
+
+# Runs simulation with varying PCI latency configuration
+# It will generate raw simulation json file result in out/
+python3 run.py pyexps/ae/f9_latency.py --filter pci-gt-ib-sw-* --force --verbose
+
+# Process the results and prints
+python3 pyexps/ae/data_pci_latency.py out/ > ae/pci_latency.data
+

experiments/pyexps/ae/data_pci_latency.py

+# Copyright 2021 Max Planck Institute for Software Systems, and
+# National University of Singapore
+#
+# 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 glob
+import json
+import os
+import itertools
+import sys
+
+if len(sys.argv) != 2:
+    print('Usage: data_pci_latency.py OUTDIR')
+    sys.exit(1)
+
+basedir = sys.argv[1]
+
+types_of_pci = [10, 50, 100, 500, 1000]
+
+def time_diff_min (data):
+    start_time = data['start_time']
+    end_time = data['end_time']
+
+    time_diff_in_min = (end_time - start_time) / 60
+    return time_diff_in_min
+
+print('# PCI latency (ns)' + '\t' + 'Sim.Time')
+
+for workload in types_of_pci:
+    
+    line = [str(workload)]
+    path_pat = '%spci-gt-ib-sw-%s' % (basedir, workload)
+        
+    runs = []
+    for path in glob.glob(path_pat + '-*.json'):
+        if path == path_pat + '-0.json':
+            # skip checkpoints
+            continue
+
+        with open(path, 'r') as f:
+            data = json.load(f)
+        
+        res = time_diff_min(data)
+        if res is not None:
+            runs.append(res)
+    
+    if not runs:
+        line.append(' ')
+    else:
+        line.append('%d' % (sum(runs) / len(runs)))
+
+    print('\t'.join(line))

experiments/pyexps/ae/f9_latency.py

@@ -48,6 +48,8 @@ for pci_type in pci_latency:
     e = exp.Experiment('pci-gt-ib-sw-' + f'{pci_type}')
 
     net = sim.SwitchNet()
+    net.sync_period = pci_type
+    net.eth_latency = pci_type
     e.add_network(net)
 
     host_class = sim.Gem5Host