Simulation.py revision 12374
15409Sgblack@eecs.umich.edu# Copyright (c) 2012-2013 ARM Limited 24519Sgblack@eecs.umich.edu# All rights reserved 34519Sgblack@eecs.umich.edu# 44519Sgblack@eecs.umich.edu# The license below extends only to copyright in the software and shall 54519Sgblack@eecs.umich.edu# not be construed as granting a license to any other intellectual 64519Sgblack@eecs.umich.edu# property including but not limited to intellectual property relating 74519Sgblack@eecs.umich.edu# to a hardware implementation of the functionality of the software 84519Sgblack@eecs.umich.edu# licensed hereunder. You may use the software subject to the license 94519Sgblack@eecs.umich.edu# terms below provided that you ensure that this notice is replicated 104519Sgblack@eecs.umich.edu# unmodified and in its entirety in all distributions of the software, 114519Sgblack@eecs.umich.edu# modified or unmodified, in source code or in binary form. 124519Sgblack@eecs.umich.edu# 134519Sgblack@eecs.umich.edu# Copyright (c) 2006-2008 The Regents of The University of Michigan 144519Sgblack@eecs.umich.edu# Copyright (c) 2010 Advanced Micro Devices, Inc. 154519Sgblack@eecs.umich.edu# All rights reserved. 164519Sgblack@eecs.umich.edu# 174519Sgblack@eecs.umich.edu# Redistribution and use in source and binary forms, with or without 184519Sgblack@eecs.umich.edu# modification, are permitted provided that the following conditions are 194519Sgblack@eecs.umich.edu# met: redistributions of source code must retain the above copyright 204519Sgblack@eecs.umich.edu# notice, this list of conditions and the following disclaimer; 214519Sgblack@eecs.umich.edu# redistributions in binary form must reproduce the above copyright 224519Sgblack@eecs.umich.edu# notice, this list of conditions and the following disclaimer in the 234519Sgblack@eecs.umich.edu# documentation and/or other materials provided with the distribution; 244519Sgblack@eecs.umich.edu# neither the name of the copyright holders nor the names of its 254519Sgblack@eecs.umich.edu# contributors may be used to endorse or promote products derived from 264519Sgblack@eecs.umich.edu# this software without specific prior written permission. 274519Sgblack@eecs.umich.edu# 284519Sgblack@eecs.umich.edu# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 294519Sgblack@eecs.umich.edu# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 304519Sgblack@eecs.umich.edu# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 314519Sgblack@eecs.umich.edu# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 324519Sgblack@eecs.umich.edu# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 334519Sgblack@eecs.umich.edu# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 344519Sgblack@eecs.umich.edu# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 354519Sgblack@eecs.umich.edu# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 364519Sgblack@eecs.umich.edu# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 374519Sgblack@eecs.umich.edu# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 384519Sgblack@eecs.umich.edu# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 394519Sgblack@eecs.umich.edu# 404519Sgblack@eecs.umich.edu# Authors: Lisa Hsu 414519Sgblack@eecs.umich.edu 424519Sgblack@eecs.umich.eduimport sys 434519Sgblack@eecs.umich.edufrom os import getcwd 444519Sgblack@eecs.umich.edufrom os.path import join as joinpath 454519Sgblack@eecs.umich.edu 464519Sgblack@eecs.umich.edufrom common import CpuConfig 474519Sgblack@eecs.umich.edufrom common import MemConfig 484519Sgblack@eecs.umich.edu 494519Sgblack@eecs.umich.eduimport m5 504519Sgblack@eecs.umich.edufrom m5.defines import buildEnv 514519Sgblack@eecs.umich.edufrom m5.objects import * 524519Sgblack@eecs.umich.edufrom m5.util import * 534519Sgblack@eecs.umich.edu 544519Sgblack@eecs.umich.eduaddToPath('../common') 554519Sgblack@eecs.umich.edu 564519Sgblack@eecs.umich.edudef getCPUClass(cpu_type): 574519Sgblack@eecs.umich.edu """Returns the required cpu class and the mode of operation.""" 584519Sgblack@eecs.umich.edu cls = CpuConfig.get(cpu_type) 594519Sgblack@eecs.umich.edu return cls, cls.memory_mode() 604519Sgblack@eecs.umich.edu 614519Sgblack@eecs.umich.edudef setCPUClass(options): 624519Sgblack@eecs.umich.edu """Returns two cpu classes and the initial mode of operation. 634519Sgblack@eecs.umich.edu 644519Sgblack@eecs.umich.edu Restoring from a checkpoint or fast forwarding through a benchmark 654519Sgblack@eecs.umich.edu can be done using one type of cpu, and then the actual 664519Sgblack@eecs.umich.edu simulation can be carried out using another type. This function 674519Sgblack@eecs.umich.edu returns these two types of cpus and the initial mode of operation 684809Sgblack@eecs.umich.edu depending on the options provided. 694519Sgblack@eecs.umich.edu """ 704519Sgblack@eecs.umich.edu 714688Sgblack@eecs.umich.edu TmpClass, test_mem_mode = getCPUClass(options.cpu_type) 724688Sgblack@eecs.umich.edu CPUClass = None 734688Sgblack@eecs.umich.edu if TmpClass.require_caches() and \ 744688Sgblack@eecs.umich.edu not options.caches and not options.ruby: 754688Sgblack@eecs.umich.edu fatal("%s must be used with caches" % options.cpu_type) 764688Sgblack@eecs.umich.edu 774708Sgblack@eecs.umich.edu if options.checkpoint_restore != None: 784708Sgblack@eecs.umich.edu if options.restore_with_cpu != options.cpu_type: 794708Sgblack@eecs.umich.edu CPUClass = TmpClass 804708Sgblack@eecs.umich.edu TmpClass, test_mem_mode = getCPUClass(options.restore_with_cpu) 814519Sgblack@eecs.umich.edu elif options.fast_forward: 824519Sgblack@eecs.umich.edu CPUClass = TmpClass 834519Sgblack@eecs.umich.edu TmpClass = AtomicSimpleCPU 844519Sgblack@eecs.umich.edu test_mem_mode = 'atomic' 854519Sgblack@eecs.umich.edu 864519Sgblack@eecs.umich.edu return (TmpClass, test_mem_mode, CPUClass) 874519Sgblack@eecs.umich.edu 884519Sgblack@eecs.umich.edudef setMemClass(options): 894519Sgblack@eecs.umich.edu """Returns a memory controller class.""" 904519Sgblack@eecs.umich.edu 914519Sgblack@eecs.umich.edu return MemConfig.get(options.mem_type) 924951Sgblack@eecs.umich.edu 934519Sgblack@eecs.umich.edudef setWorkCountOptions(system, options): 944519Sgblack@eecs.umich.edu if options.work_item_id != None: 954519Sgblack@eecs.umich.edu system.work_item_id = options.work_item_id 964519Sgblack@eecs.umich.edu if options.num_work_ids != None: 974519Sgblack@eecs.umich.edu system.num_work_ids = options.num_work_ids 984519Sgblack@eecs.umich.edu if options.work_begin_cpu_id_exit != None: 994688Sgblack@eecs.umich.edu system.work_begin_cpu_id_exit = options.work_begin_cpu_id_exit 1004688Sgblack@eecs.umich.edu if options.work_end_exit_count != None: 1014688Sgblack@eecs.umich.edu system.work_end_exit_count = options.work_end_exit_count 1024688Sgblack@eecs.umich.edu if options.work_end_checkpoint_count != None: 1034688Sgblack@eecs.umich.edu system.work_end_ckpt_count = options.work_end_checkpoint_count 1044688Sgblack@eecs.umich.edu if options.work_begin_exit_count != None: 1054708Sgblack@eecs.umich.edu system.work_begin_exit_count = options.work_begin_exit_count 1064708Sgblack@eecs.umich.edu if options.work_begin_checkpoint_count != None: 1074708Sgblack@eecs.umich.edu system.work_begin_ckpt_count = options.work_begin_checkpoint_count 1084708Sgblack@eecs.umich.edu if options.work_cpus_checkpoint_count != None: 1094519Sgblack@eecs.umich.edu system.work_cpus_ckpt_count = options.work_cpus_checkpoint_count 1104519Sgblack@eecs.umich.edu 1114519Sgblack@eecs.umich.edudef findCptDir(options, cptdir, testsys): 1124519Sgblack@eecs.umich.edu """Figures out the directory from which the checkpointed state is read. 1134519Sgblack@eecs.umich.edu 1144519Sgblack@eecs.umich.edu There are two different ways in which the directories holding checkpoints 1154519Sgblack@eecs.umich.edu can be named -- 1164519Sgblack@eecs.umich.edu 1. cpt.<benchmark name>.<instruction count when the checkpoint was taken> 1174519Sgblack@eecs.umich.edu 2. cpt.<some number, usually the tick value when the checkpoint was taken> 1184519Sgblack@eecs.umich.edu 1194519Sgblack@eecs.umich.edu This function parses through the options to figure out which one of the 1204519Sgblack@eecs.umich.edu above should be used for selecting the checkpoint, and then figures out 1214519Sgblack@eecs.umich.edu the appropriate directory. 1224519Sgblack@eecs.umich.edu """ 1234519Sgblack@eecs.umich.edu 1244519Sgblack@eecs.umich.edu from os.path import isdir, exists 1254519Sgblack@eecs.umich.edu from os import listdir 1264519Sgblack@eecs.umich.edu import re 1274519Sgblack@eecs.umich.edu 1284519Sgblack@eecs.umich.edu if not isdir(cptdir): 1296345Sgblack@eecs.umich.edu fatal("checkpoint dir %s does not exist!", cptdir) 1304712Sgblack@eecs.umich.edu 1314519Sgblack@eecs.umich.edu cpt_starttick = 0 1324519Sgblack@eecs.umich.edu if options.at_instruction or options.simpoint: 1334519Sgblack@eecs.umich.edu inst = options.checkpoint_restore 1346345Sgblack@eecs.umich.edu if options.simpoint: 1354712Sgblack@eecs.umich.edu # assume workload 0 has the simpoint 1364519Sgblack@eecs.umich.edu if testsys.cpu[0].workload[0].simpoint == 0: 1374519Sgblack@eecs.umich.edu fatal('Unable to find simpoint') 1384519Sgblack@eecs.umich.edu inst += int(testsys.cpu[0].workload[0].simpoint) 1394519Sgblack@eecs.umich.edu 1404519Sgblack@eecs.umich.edu checkpoint_dir = joinpath(cptdir, "cpt.%s.%s" % (options.bench, inst)) 1414519Sgblack@eecs.umich.edu if not exists(checkpoint_dir): 1424519Sgblack@eecs.umich.edu fatal("Unable to find checkpoint directory %s", checkpoint_dir) 1434951Sgblack@eecs.umich.edu 1444519Sgblack@eecs.umich.edu elif options.restore_simpoint_checkpoint: 1454519Sgblack@eecs.umich.edu # Restore from SimPoint checkpoints 1464519Sgblack@eecs.umich.edu # Assumes that the checkpoint dir names are formatted as follows: 1474519Sgblack@eecs.umich.edu dirs = listdir(cptdir) 1484519Sgblack@eecs.umich.edu expr = re.compile('cpt\.simpoint_(\d+)_inst_(\d+)' + 1494951Sgblack@eecs.umich.edu '_weight_([\d\.e\-]+)_interval_(\d+)_warmup_(\d+)') 1504519Sgblack@eecs.umich.edu cpts = [] 1514519Sgblack@eecs.umich.edu for dir in dirs: 1526345Sgblack@eecs.umich.edu match = expr.match(dir) 1534712Sgblack@eecs.umich.edu if match: 1544519Sgblack@eecs.umich.edu cpts.append(dir) 1554951Sgblack@eecs.umich.edu cpts.sort() 1564519Sgblack@eecs.umich.edu 1576345Sgblack@eecs.umich.edu cpt_num = options.checkpoint_restore 1584712Sgblack@eecs.umich.edu if cpt_num > len(cpts): 1594519Sgblack@eecs.umich.edu fatal('Checkpoint %d not found', cpt_num) 1604519Sgblack@eecs.umich.edu checkpoint_dir = joinpath(cptdir, cpts[cpt_num - 1]) 1614519Sgblack@eecs.umich.edu match = expr.match(cpts[cpt_num - 1]) 1624519Sgblack@eecs.umich.edu if match: 1634519Sgblack@eecs.umich.edu index = int(match.group(1)) 1644519Sgblack@eecs.umich.edu start_inst = int(match.group(2)) 1654519Sgblack@eecs.umich.edu weight_inst = float(match.group(3)) 1664519Sgblack@eecs.umich.edu interval_length = int(match.group(4)) 1674519Sgblack@eecs.umich.edu warmup_length = int(match.group(5)) 1684519Sgblack@eecs.umich.edu print "Resuming from", checkpoint_dir 1694519Sgblack@eecs.umich.edu simpoint_start_insts = [] 1704519Sgblack@eecs.umich.edu simpoint_start_insts.append(warmup_length) 1714519Sgblack@eecs.umich.edu simpoint_start_insts.append(warmup_length + interval_length) 1724519Sgblack@eecs.umich.edu testsys.cpu[0].simpoint_start_insts = simpoint_start_insts 1736345Sgblack@eecs.umich.edu if testsys.switch_cpus != None: 1744712Sgblack@eecs.umich.edu testsys.switch_cpus[0].simpoint_start_insts = simpoint_start_insts 1754519Sgblack@eecs.umich.edu 1764581Sgblack@eecs.umich.edu print "Resuming from SimPoint", 1774688Sgblack@eecs.umich.edu print "#%d, start_inst:%d, weight:%f, interval:%d, warmup:%d" % \ 1784581Sgblack@eecs.umich.edu (index, start_inst, weight_inst, interval_length, warmup_length) 1794519Sgblack@eecs.umich.edu 1804519Sgblack@eecs.umich.edu else: 1814519Sgblack@eecs.umich.edu dirs = listdir(cptdir) 1824519Sgblack@eecs.umich.edu expr = re.compile('cpt\.([0-9]+)') 1834519Sgblack@eecs.umich.edu cpts = [] 1844519Sgblack@eecs.umich.edu for dir in dirs: 1854519Sgblack@eecs.umich.edu match = expr.match(dir) 1866345Sgblack@eecs.umich.edu if match: 1874712Sgblack@eecs.umich.edu cpts.append(match.group(1)) 1884519Sgblack@eecs.umich.edu 1894581Sgblack@eecs.umich.edu cpts.sort(lambda a,b: cmp(long(a), long(b))) 1904688Sgblack@eecs.umich.edu 1914581Sgblack@eecs.umich.edu cpt_num = options.checkpoint_restore 1924519Sgblack@eecs.umich.edu if cpt_num > len(cpts): 1934519Sgblack@eecs.umich.edu fatal('Checkpoint %d not found', cpt_num) 1944519Sgblack@eecs.umich.edu 1954519Sgblack@eecs.umich.edu cpt_starttick = int(cpts[cpt_num - 1]) 1964519Sgblack@eecs.umich.edu checkpoint_dir = joinpath(cptdir, "cpt.%s" % cpts[cpt_num - 1]) 1974519Sgblack@eecs.umich.edu 1984519Sgblack@eecs.umich.edu return cpt_starttick, checkpoint_dir 1994951Sgblack@eecs.umich.edu 2004519Sgblack@eecs.umich.edudef scriptCheckpoints(options, maxtick, cptdir): 2014519Sgblack@eecs.umich.edu if options.at_instruction or options.simpoint: 2024519Sgblack@eecs.umich.edu checkpoint_inst = int(options.take_checkpoints) 2034519Sgblack@eecs.umich.edu 2044951Sgblack@eecs.umich.edu # maintain correct offset if we restored from some instruction 2054519Sgblack@eecs.umich.edu if options.checkpoint_restore != None: 2066345Sgblack@eecs.umich.edu checkpoint_inst += options.checkpoint_restore 2074712Sgblack@eecs.umich.edu 2084519Sgblack@eecs.umich.edu print "Creating checkpoint at inst:%d" % (checkpoint_inst) 2094581Sgblack@eecs.umich.edu exit_event = m5.simulate() 2104688Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2114581Sgblack@eecs.umich.edu print "exit cause = %s" % exit_cause 2124519Sgblack@eecs.umich.edu 2134519Sgblack@eecs.umich.edu # skip checkpoint instructions should they exist 2144519Sgblack@eecs.umich.edu while exit_cause == "checkpoint": 2154519Sgblack@eecs.umich.edu exit_event = m5.simulate() 2164951Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2174519Sgblack@eecs.umich.edu 2184519Sgblack@eecs.umich.edu if exit_cause == "a thread reached the max instruction count": 2196345Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, "cpt.%s.%d" % \ 2204712Sgblack@eecs.umich.edu (options.bench, checkpoint_inst))) 2214519Sgblack@eecs.umich.edu print "Checkpoint written." 2224581Sgblack@eecs.umich.edu 2234688Sgblack@eecs.umich.edu else: 2244581Sgblack@eecs.umich.edu when, period = options.take_checkpoints.split(",", 1) 2254519Sgblack@eecs.umich.edu when = int(when) 2264519Sgblack@eecs.umich.edu period = int(period) 2274519Sgblack@eecs.umich.edu num_checkpoints = 0 2284519Sgblack@eecs.umich.edu 2294519Sgblack@eecs.umich.edu exit_event = m5.simulate(when - m5.curTick()) 2305075Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2315075Sgblack@eecs.umich.edu while exit_cause == "checkpoint": 2325075Sgblack@eecs.umich.edu exit_event = m5.simulate(when - m5.curTick()) 2335075Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2345428Sgblack@eecs.umich.edu 2355428Sgblack@eecs.umich.edu if exit_cause == "simulate() limit reached": 2365674Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, "cpt.%d")) 2375899Sgblack@eecs.umich.edu num_checkpoints += 1 2385936Sgblack@eecs.umich.edu 2395428Sgblack@eecs.umich.edu sim_ticks = when 2405678Sgblack@eecs.umich.edu max_checkpoints = options.max_checkpoints 2415678Sgblack@eecs.umich.edu 2425678Sgblack@eecs.umich.edu while num_checkpoints < max_checkpoints and \ 2435678Sgblack@eecs.umich.edu exit_cause == "simulate() limit reached": 2445678Sgblack@eecs.umich.edu if (sim_ticks + period) > maxtick: 2455678Sgblack@eecs.umich.edu exit_event = m5.simulate(maxtick - sim_ticks) 2465678Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2475678Sgblack@eecs.umich.edu break 2485678Sgblack@eecs.umich.edu else: 2495075Sgblack@eecs.umich.edu exit_event = m5.simulate(period) 2505075Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2515075Sgblack@eecs.umich.edu sim_ticks += period 2525075Sgblack@eecs.umich.edu while exit_event.getCause() == "checkpoint": 2535075Sgblack@eecs.umich.edu exit_event = m5.simulate(sim_ticks - m5.curTick()) 2545075Sgblack@eecs.umich.edu if exit_event.getCause() == "simulate() limit reached": 2555075Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, "cpt.%d")) 2565075Sgblack@eecs.umich.edu num_checkpoints += 1 2575075Sgblack@eecs.umich.edu 2585075Sgblack@eecs.umich.edu return exit_event 2595075Sgblack@eecs.umich.edu 2605075Sgblack@eecs.umich.edudef benchCheckpoints(options, maxtick, cptdir): 2615075Sgblack@eecs.umich.edu exit_event = m5.simulate(maxtick - m5.curTick()) 2625075Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2635075Sgblack@eecs.umich.edu 2645075Sgblack@eecs.umich.edu num_checkpoints = 0 2655075Sgblack@eecs.umich.edu max_checkpoints = options.max_checkpoints 2665075Sgblack@eecs.umich.edu 2675075Sgblack@eecs.umich.edu while exit_cause == "checkpoint": 2685075Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, "cpt.%d")) 2695075Sgblack@eecs.umich.edu num_checkpoints += 1 2705075Sgblack@eecs.umich.edu if num_checkpoints == max_checkpoints: 2715075Sgblack@eecs.umich.edu exit_cause = "maximum %d checkpoints dropped" % max_checkpoints 2725075Sgblack@eecs.umich.edu break 2735075Sgblack@eecs.umich.edu 2745075Sgblack@eecs.umich.edu exit_event = m5.simulate(maxtick - m5.curTick()) 2755075Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 2765075Sgblack@eecs.umich.edu 2775075Sgblack@eecs.umich.edu return exit_event 2785075Sgblack@eecs.umich.edu 2795075Sgblack@eecs.umich.edu# Set up environment for taking SimPoint checkpoints 2805075Sgblack@eecs.umich.edu# Expecting SimPoint files generated by SimPoint 3.2 2815075Sgblack@eecs.umich.edudef parseSimpointAnalysisFile(options, testsys): 2825075Sgblack@eecs.umich.edu import re 2835075Sgblack@eecs.umich.edu 2844519Sgblack@eecs.umich.edu simpoint_filename, weight_filename, interval_length, warmup_length = \ 2855040Sgblack@eecs.umich.edu options.take_simpoint_checkpoints.split(",", 3) 2865040Sgblack@eecs.umich.edu print "simpoint analysis file:", simpoint_filename 2875040Sgblack@eecs.umich.edu print "simpoint weight file:", weight_filename 2885040Sgblack@eecs.umich.edu print "interval length:", interval_length 2895040Sgblack@eecs.umich.edu print "warmup length:", warmup_length 2905040Sgblack@eecs.umich.edu 2915040Sgblack@eecs.umich.edu interval_length = int(interval_length) 2925040Sgblack@eecs.umich.edu warmup_length = int(warmup_length) 2935040Sgblack@eecs.umich.edu 2945040Sgblack@eecs.umich.edu # Simpoint analysis output starts interval counts with 0. 2955040Sgblack@eecs.umich.edu simpoints = [] 2965040Sgblack@eecs.umich.edu simpoint_start_insts = [] 2975040Sgblack@eecs.umich.edu 2985040Sgblack@eecs.umich.edu # Read in SimPoint analysis files 2995040Sgblack@eecs.umich.edu simpoint_file = open(simpoint_filename) 3005040Sgblack@eecs.umich.edu weight_file = open(weight_filename) 3015040Sgblack@eecs.umich.edu while True: 3025040Sgblack@eecs.umich.edu line = simpoint_file.readline() 3035040Sgblack@eecs.umich.edu if not line: 3045040Sgblack@eecs.umich.edu break 3055040Sgblack@eecs.umich.edu m = re.match("(\d+)\s+(\d+)", line) 3065040Sgblack@eecs.umich.edu if m: 3075040Sgblack@eecs.umich.edu interval = int(m.group(1)) 3085040Sgblack@eecs.umich.edu else: 3095040Sgblack@eecs.umich.edu fatal('unrecognized line in simpoint file!') 3105040Sgblack@eecs.umich.edu 3115040Sgblack@eecs.umich.edu line = weight_file.readline() 3125040Sgblack@eecs.umich.edu if not line: 3135040Sgblack@eecs.umich.edu fatal('not enough lines in simpoint weight file!') 3145040Sgblack@eecs.umich.edu m = re.match("([0-9\.e\-]+)\s+(\d+)", line) 3155062Sgblack@eecs.umich.edu if m: 3165062Sgblack@eecs.umich.edu weight = float(m.group(1)) 3175062Sgblack@eecs.umich.edu else: 3185062Sgblack@eecs.umich.edu fatal('unrecognized line in simpoint weight file!') 3195062Sgblack@eecs.umich.edu 3205062Sgblack@eecs.umich.edu if (interval * interval_length - warmup_length > 0): 3215062Sgblack@eecs.umich.edu starting_inst_count = \ 3225040Sgblack@eecs.umich.edu interval * interval_length - warmup_length 3235062Sgblack@eecs.umich.edu actual_warmup_length = warmup_length 3245062Sgblack@eecs.umich.edu else: 3255062Sgblack@eecs.umich.edu # Not enough room for proper warmup 3265062Sgblack@eecs.umich.edu # Just starting from the beginning 3275040Sgblack@eecs.umich.edu starting_inst_count = 0 3285040Sgblack@eecs.umich.edu actual_warmup_length = interval * interval_length 3295040Sgblack@eecs.umich.edu 3305040Sgblack@eecs.umich.edu simpoints.append((interval, weight, starting_inst_count, 3315040Sgblack@eecs.umich.edu actual_warmup_length)) 3325040Sgblack@eecs.umich.edu 3335040Sgblack@eecs.umich.edu # Sort SimPoints by starting inst count 3345040Sgblack@eecs.umich.edu simpoints.sort(key=lambda obj: obj[2]) 3355040Sgblack@eecs.umich.edu for s in simpoints: 3365239Sgblack@eecs.umich.edu interval, weight, starting_inst_count, actual_warmup_length = s 3375040Sgblack@eecs.umich.edu print str(interval), str(weight), starting_inst_count, \ 3385040Sgblack@eecs.umich.edu actual_warmup_length 3395040Sgblack@eecs.umich.edu simpoint_start_insts.append(starting_inst_count) 3405040Sgblack@eecs.umich.edu 3415040Sgblack@eecs.umich.edu print "Total # of simpoints:", len(simpoints) 3425040Sgblack@eecs.umich.edu testsys.cpu[0].simpoint_start_insts = simpoint_start_insts 3435040Sgblack@eecs.umich.edu 3445040Sgblack@eecs.umich.edu return (simpoints, interval_length) 3455061Sgblack@eecs.umich.edu 3465040Sgblack@eecs.umich.edudef takeSimpointCheckpoints(simpoints, interval_length, cptdir): 3475040Sgblack@eecs.umich.edu num_checkpoints = 0 3485061Sgblack@eecs.umich.edu index = 0 3495061Sgblack@eecs.umich.edu last_chkpnt_inst_count = -1 3505061Sgblack@eecs.umich.edu for simpoint in simpoints: 3515061Sgblack@eecs.umich.edu interval, weight, starting_inst_count, actual_warmup_length = simpoint 3525061Sgblack@eecs.umich.edu if starting_inst_count == last_chkpnt_inst_count: 3535061Sgblack@eecs.umich.edu # checkpoint starting point same as last time 3545061Sgblack@eecs.umich.edu # (when warmup period longer than starting point) 3555061Sgblack@eecs.umich.edu exit_cause = "simpoint starting point found" 3565040Sgblack@eecs.umich.edu code = 0 3575040Sgblack@eecs.umich.edu else: 3585040Sgblack@eecs.umich.edu exit_event = m5.simulate() 3595040Sgblack@eecs.umich.edu 3605040Sgblack@eecs.umich.edu # skip checkpoint instructions should they exist 3615040Sgblack@eecs.umich.edu while exit_event.getCause() == "checkpoint": 3625040Sgblack@eecs.umich.edu print "Found 'checkpoint' exit event...ignoring..." 3635040Sgblack@eecs.umich.edu exit_event = m5.simulate() 3645040Sgblack@eecs.umich.edu 3655040Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 3665040Sgblack@eecs.umich.edu code = exit_event.getCode() 3675040Sgblack@eecs.umich.edu 3685040Sgblack@eecs.umich.edu if exit_cause == "simpoint starting point found": 3695040Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, 3705040Sgblack@eecs.umich.edu "cpt.simpoint_%02d_inst_%d_weight_%f_interval_%d_warmup_%d" 3715040Sgblack@eecs.umich.edu % (index, starting_inst_count, weight, interval_length, 3725040Sgblack@eecs.umich.edu actual_warmup_length))) 3735040Sgblack@eecs.umich.edu print "Checkpoint #%d written. start inst:%d weight:%f" % \ 3745040Sgblack@eecs.umich.edu (num_checkpoints, starting_inst_count, weight) 3755040Sgblack@eecs.umich.edu num_checkpoints += 1 3765040Sgblack@eecs.umich.edu last_chkpnt_inst_count = starting_inst_count 3775040Sgblack@eecs.umich.edu else: 3785040Sgblack@eecs.umich.edu break 3795040Sgblack@eecs.umich.edu index += 1 3805040Sgblack@eecs.umich.edu 3814688Sgblack@eecs.umich.edu print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_cause) 3825040Sgblack@eecs.umich.edu print "%d checkpoints taken" % num_checkpoints 3834688Sgblack@eecs.umich.edu sys.exit(code) 3844688Sgblack@eecs.umich.edu 3854688Sgblack@eecs.umich.edudef restoreSimpointCheckpoint(): 3864688Sgblack@eecs.umich.edu exit_event = m5.simulate() 3875040Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 3884688Sgblack@eecs.umich.edu 3895040Sgblack@eecs.umich.edu if exit_cause == "simpoint starting point found": 3905040Sgblack@eecs.umich.edu print "Warmed up! Dumping and resetting stats!" 3915040Sgblack@eecs.umich.edu m5.stats.dump() 3925040Sgblack@eecs.umich.edu m5.stats.reset() 3935040Sgblack@eecs.umich.edu 3945040Sgblack@eecs.umich.edu exit_event = m5.simulate() 3955040Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 3965040Sgblack@eecs.umich.edu 3975040Sgblack@eecs.umich.edu if exit_cause == "simpoint starting point found": 3985040Sgblack@eecs.umich.edu print "Done running SimPoint!" 3995040Sgblack@eecs.umich.edu sys.exit(exit_event.getCode()) 4005040Sgblack@eecs.umich.edu 4015040Sgblack@eecs.umich.edu print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_cause) 4025040Sgblack@eecs.umich.edu sys.exit(exit_event.getCode()) 4035040Sgblack@eecs.umich.edu 4045040Sgblack@eecs.umich.edudef repeatSwitch(testsys, repeat_switch_cpu_list, maxtick, switch_freq): 4055040Sgblack@eecs.umich.edu print "starting switch loop" 4065040Sgblack@eecs.umich.edu while True: 4075040Sgblack@eecs.umich.edu exit_event = m5.simulate(switch_freq) 4085040Sgblack@eecs.umich.edu exit_cause = exit_event.getCause() 4095040Sgblack@eecs.umich.edu 4105040Sgblack@eecs.umich.edu if exit_cause != "simulate() limit reached": 4114688Sgblack@eecs.umich.edu return exit_event 4124688Sgblack@eecs.umich.edu 4135040Sgblack@eecs.umich.edu m5.switchCpus(testsys, repeat_switch_cpu_list) 4145040Sgblack@eecs.umich.edu 4155040Sgblack@eecs.umich.edu tmp_cpu_list = [] 4165040Sgblack@eecs.umich.edu for old_cpu, new_cpu in repeat_switch_cpu_list: 4174688Sgblack@eecs.umich.edu tmp_cpu_list.append((new_cpu, old_cpu)) 4184688Sgblack@eecs.umich.edu repeat_switch_cpu_list = tmp_cpu_list 4195040Sgblack@eecs.umich.edu 4205040Sgblack@eecs.umich.edu if (maxtick - m5.curTick()) <= switch_freq: 4215040Sgblack@eecs.umich.edu exit_event = m5.simulate(maxtick - m5.curTick()) 4225040Sgblack@eecs.umich.edu return exit_event 4235040Sgblack@eecs.umich.edu 4245040Sgblack@eecs.umich.edudef run(options, root, testsys, cpu_class): 4254519Sgblack@eecs.umich.edu if options.checkpoint_dir: 4264519Sgblack@eecs.umich.edu cptdir = options.checkpoint_dir 4275040Sgblack@eecs.umich.edu elif m5.options.outdir: 4284688Sgblack@eecs.umich.edu cptdir = m5.options.outdir 4294701Sgblack@eecs.umich.edu else: 4304688Sgblack@eecs.umich.edu cptdir = getcwd() 4314688Sgblack@eecs.umich.edu 4324688Sgblack@eecs.umich.edu if options.fast_forward and options.checkpoint_restore != None: 4334688Sgblack@eecs.umich.edu fatal("Can't specify both --fast-forward and --checkpoint-restore") 4344688Sgblack@eecs.umich.edu 4354688Sgblack@eecs.umich.edu if options.standard_switch and not options.caches: 4364688Sgblack@eecs.umich.edu fatal("Must specify --caches when using --standard-switch") 4374519Sgblack@eecs.umich.edu 4384519Sgblack@eecs.umich.edu if options.standard_switch and options.repeat_switch: 4395040Sgblack@eecs.umich.edu fatal("Can't specify both --standard-switch and --repeat-switch") 4405040Sgblack@eecs.umich.edu 4415040Sgblack@eecs.umich.edu if options.repeat_switch and options.take_checkpoints: 4425788Sgblack@eecs.umich.edu fatal("Can't specify both --repeat-switch and --take-checkpoints") 4435040Sgblack@eecs.umich.edu 4444688Sgblack@eecs.umich.edu np = options.num_cpus 4455040Sgblack@eecs.umich.edu switch_cpus = None 4464519Sgblack@eecs.umich.edu 4475040Sgblack@eecs.umich.edu if options.prog_interval: 4484519Sgblack@eecs.umich.edu for i in xrange(np): 4494519Sgblack@eecs.umich.edu testsys.cpu[i].progress_interval = options.prog_interval 4504519Sgblack@eecs.umich.edu 4514539Sgblack@eecs.umich.edu if options.maxinsts: 4524519Sgblack@eecs.umich.edu for i in xrange(np): 4535040Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = options.maxinsts 4544688Sgblack@eecs.umich.edu 4555040Sgblack@eecs.umich.edu if cpu_class: 4565040Sgblack@eecs.umich.edu switch_cpus = [cpu_class(switched_out=True, cpu_id=(i)) 4575115Sgblack@eecs.umich.edu for i in xrange(np)] 4585040Sgblack@eecs.umich.edu 4595040Sgblack@eecs.umich.edu for i in xrange(np): 4605040Sgblack@eecs.umich.edu if options.fast_forward: 4615115Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = int(options.fast_forward) 4625040Sgblack@eecs.umich.edu switch_cpus[i].system = testsys 4635040Sgblack@eecs.umich.edu switch_cpus[i].workload = testsys.cpu[i].workload 4644519Sgblack@eecs.umich.edu switch_cpus[i].clk_domain = testsys.cpu[i].clk_domain 4655040Sgblack@eecs.umich.edu switch_cpus[i].progress_interval = \ 4665040Sgblack@eecs.umich.edu testsys.cpu[i].progress_interval 4675040Sgblack@eecs.umich.edu switch_cpus[i].isa = testsys.cpu[i].isa 4685040Sgblack@eecs.umich.edu # simulation period 4694519Sgblack@eecs.umich.edu if options.maxinsts: 4705040Sgblack@eecs.umich.edu switch_cpus[i].max_insts_any_thread = options.maxinsts 4715040Sgblack@eecs.umich.edu # Add checker cpu if selected 4725040Sgblack@eecs.umich.edu if options.checker: 4735040Sgblack@eecs.umich.edu switch_cpus[i].addCheckerCpu() 4744519Sgblack@eecs.umich.edu 4755040Sgblack@eecs.umich.edu # If elastic tracing is enabled attach the elastic trace probe 4765040Sgblack@eecs.umich.edu # to the switch CPUs 4775083Sgblack@eecs.umich.edu if options.elastic_trace_en: 4784519Sgblack@eecs.umich.edu CpuConfig.config_etrace(cpu_class, switch_cpus, options) 4795063Sgblack@eecs.umich.edu 4805063Sgblack@eecs.umich.edu testsys.switch_cpus = switch_cpus 4815063Sgblack@eecs.umich.edu switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)] 4825063Sgblack@eecs.umich.edu 4835063Sgblack@eecs.umich.edu if options.repeat_switch: 4846345Sgblack@eecs.umich.edu switch_class = getCPUClass(options.cpu_type)[0] 4856345Sgblack@eecs.umich.edu if switch_class.require_caches() and \ 4865063Sgblack@eecs.umich.edu not options.caches: 4875063Sgblack@eecs.umich.edu print "%s: Must be used with caches" % str(switch_class) 4885063Sgblack@eecs.umich.edu sys.exit(1) 4895063Sgblack@eecs.umich.edu if not switch_class.support_take_over(): 4906345Sgblack@eecs.umich.edu print "%s: CPU switching not supported" % str(switch_class) 4916345Sgblack@eecs.umich.edu sys.exit(1) 4925063Sgblack@eecs.umich.edu 4935040Sgblack@eecs.umich.edu repeat_switch_cpus = [switch_class(switched_out=True, \ 4945040Sgblack@eecs.umich.edu cpu_id=(i)) for i in xrange(np)] 4954595Sgblack@eecs.umich.edu 4965040Sgblack@eecs.umich.edu for i in xrange(np): 4975040Sgblack@eecs.umich.edu repeat_switch_cpus[i].system = testsys 4984595Sgblack@eecs.umich.edu repeat_switch_cpus[i].workload = testsys.cpu[i].workload 4995040Sgblack@eecs.umich.edu repeat_switch_cpus[i].clk_domain = testsys.cpu[i].clk_domain 5005040Sgblack@eecs.umich.edu repeat_switch_cpus[i].isa = testsys.cpu[i].isa 5014732Sgblack@eecs.umich.edu 5025138Sgblack@eecs.umich.edu if options.maxinsts: 5035040Sgblack@eecs.umich.edu repeat_switch_cpus[i].max_insts_any_thread = options.maxinsts 5045040Sgblack@eecs.umich.edu 5055040Sgblack@eecs.umich.edu if options.checker: 5065040Sgblack@eecs.umich.edu repeat_switch_cpus[i].addCheckerCpu() 5074732Sgblack@eecs.umich.edu 5085138Sgblack@eecs.umich.edu testsys.repeat_switch_cpus = repeat_switch_cpus 5095040Sgblack@eecs.umich.edu 5105040Sgblack@eecs.umich.edu if cpu_class: 5115040Sgblack@eecs.umich.edu repeat_switch_cpu_list = [(switch_cpus[i], repeat_switch_cpus[i]) 5125040Sgblack@eecs.umich.edu for i in xrange(np)] 5135040Sgblack@eecs.umich.edu else: 5145040Sgblack@eecs.umich.edu repeat_switch_cpu_list = [(testsys.cpu[i], repeat_switch_cpus[i]) 5155040Sgblack@eecs.umich.edu for i in xrange(np)] 5165040Sgblack@eecs.umich.edu 5175040Sgblack@eecs.umich.edu if options.standard_switch: 5185040Sgblack@eecs.umich.edu switch_cpus = [TimingSimpleCPU(switched_out=True, cpu_id=(i)) 5195040Sgblack@eecs.umich.edu for i in xrange(np)] 5205063Sgblack@eecs.umich.edu switch_cpus_1 = [DerivO3CPU(switched_out=True, cpu_id=(i)) 5215040Sgblack@eecs.umich.edu for i in xrange(np)] 5225063Sgblack@eecs.umich.edu 5235063Sgblack@eecs.umich.edu for i in xrange(np): 5246430Sgblack@eecs.umich.edu switch_cpus[i].system = testsys 5256430Sgblack@eecs.umich.edu switch_cpus_1[i].system = testsys 5266430Sgblack@eecs.umich.edu switch_cpus[i].workload = testsys.cpu[i].workload 5276430Sgblack@eecs.umich.edu switch_cpus_1[i].workload = testsys.cpu[i].workload 5286430Sgblack@eecs.umich.edu switch_cpus[i].clk_domain = testsys.cpu[i].clk_domain 5296430Sgblack@eecs.umich.edu switch_cpus_1[i].clk_domain = testsys.cpu[i].clk_domain 5306430Sgblack@eecs.umich.edu switch_cpus[i].isa = testsys.cpu[i].isa 5316430Sgblack@eecs.umich.edu switch_cpus_1[i].isa = testsys.cpu[i].isa 5326430Sgblack@eecs.umich.edu 5336430Sgblack@eecs.umich.edu # if restoring, make atomic cpu simulate only a few instructions 5346430Sgblack@eecs.umich.edu if options.checkpoint_restore != None: 5356430Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = 1 5366430Sgblack@eecs.umich.edu # Fast forward to specified location if we are not restoring 5376430Sgblack@eecs.umich.edu elif options.fast_forward: 5386430Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = int(options.fast_forward) 5395040Sgblack@eecs.umich.edu # Fast forward to a simpoint (warning: time consuming) 5405040Sgblack@eecs.umich.edu elif options.simpoint: 5415063Sgblack@eecs.umich.edu if testsys.cpu[i].workload[0].simpoint == 0: 5425040Sgblack@eecs.umich.edu fatal('simpoint not found') 5435063Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = \ 5444809Sgblack@eecs.umich.edu testsys.cpu[i].workload[0].simpoint 5456430Sgblack@eecs.umich.edu # No distance specified, just switch 5466430Sgblack@eecs.umich.edu else: 5475063Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = 1 5486430Sgblack@eecs.umich.edu 5495063Sgblack@eecs.umich.edu # warmup period 5505063Sgblack@eecs.umich.edu if options.warmup_insts: 5516430Sgblack@eecs.umich.edu switch_cpus[i].max_insts_any_thread = options.warmup_insts 5525063Sgblack@eecs.umich.edu 5535040Sgblack@eecs.umich.edu # simulation period 5545040Sgblack@eecs.umich.edu if options.maxinsts: 5555063Sgblack@eecs.umich.edu switch_cpus_1[i].max_insts_any_thread = options.maxinsts 5565063Sgblack@eecs.umich.edu 5575040Sgblack@eecs.umich.edu # attach the checker cpu if selected 5585063Sgblack@eecs.umich.edu if options.checker: 5595063Sgblack@eecs.umich.edu switch_cpus[i].addCheckerCpu() 5605063Sgblack@eecs.umich.edu switch_cpus_1[i].addCheckerCpu() 5615063Sgblack@eecs.umich.edu 5626345Sgblack@eecs.umich.edu testsys.switch_cpus = switch_cpus 5636345Sgblack@eecs.umich.edu testsys.switch_cpus_1 = switch_cpus_1 5645063Sgblack@eecs.umich.edu switch_cpu_list = [(testsys.cpu[i], switch_cpus[i]) for i in xrange(np)] 5655063Sgblack@eecs.umich.edu switch_cpu_list1 = [(switch_cpus[i], switch_cpus_1[i]) for i in xrange(np)] 5665063Sgblack@eecs.umich.edu 5675063Sgblack@eecs.umich.edu # set the checkpoint in the cpu before m5.instantiate is called 5685063Sgblack@eecs.umich.edu if options.take_checkpoints != None and \ 5695063Sgblack@eecs.umich.edu (options.simpoint or options.at_instruction): 5705063Sgblack@eecs.umich.edu offset = int(options.take_checkpoints) 5715062Sgblack@eecs.umich.edu # Set an instruction break point 5725075Sgblack@eecs.umich.edu if options.simpoint: 5735075Sgblack@eecs.umich.edu for i in xrange(np): 5745040Sgblack@eecs.umich.edu if testsys.cpu[i].workload[0].simpoint == 0: 5755075Sgblack@eecs.umich.edu fatal('no simpoint for testsys.cpu[%d].workload[0]', i) 5765075Sgblack@eecs.umich.edu checkpoint_inst = int(testsys.cpu[i].workload[0].simpoint) + offset 5775075Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = checkpoint_inst 5785075Sgblack@eecs.umich.edu # used for output below 5795075Sgblack@eecs.umich.edu options.take_checkpoints = checkpoint_inst 5805075Sgblack@eecs.umich.edu else: 5815075Sgblack@eecs.umich.edu options.take_checkpoints = offset 5825075Sgblack@eecs.umich.edu # Set all test cpus with the right number of instructions 5835075Sgblack@eecs.umich.edu # for the upcoming simulation 5845075Sgblack@eecs.umich.edu for i in xrange(np): 5855075Sgblack@eecs.umich.edu testsys.cpu[i].max_insts_any_thread = offset 5865075Sgblack@eecs.umich.edu 5875075Sgblack@eecs.umich.edu if options.take_simpoint_checkpoints != None: 5885075Sgblack@eecs.umich.edu simpoints, interval_length = parseSimpointAnalysisFile(options, testsys) 5895075Sgblack@eecs.umich.edu 5905040Sgblack@eecs.umich.edu checkpoint_dir = None 5914823Sgblack@eecs.umich.edu if options.checkpoint_restore: 5925075Sgblack@eecs.umich.edu cpt_starttick, checkpoint_dir = findCptDir(options, cptdir, testsys) 5935075Sgblack@eecs.umich.edu m5.instantiate(checkpoint_dir) 5945075Sgblack@eecs.umich.edu 5955075Sgblack@eecs.umich.edu # Initialization is complete. If we're not in control of simulation 5965075Sgblack@eecs.umich.edu # (that is, if we're a slave simulator acting as a component in another 5975075Sgblack@eecs.umich.edu # 'master' simulator) then we're done here. The other simulator will 5985075Sgblack@eecs.umich.edu # call simulate() directly. --initialize-only is used to indicate this. 5995075Sgblack@eecs.umich.edu if options.initialize_only: 6005075Sgblack@eecs.umich.edu return 6015075Sgblack@eecs.umich.edu 6025075Sgblack@eecs.umich.edu # Handle the max tick settings now that tick frequency was resolved 6035075Sgblack@eecs.umich.edu # during system instantiation 6045075Sgblack@eecs.umich.edu # NOTE: the maxtick variable here is in absolute ticks, so it must 6055075Sgblack@eecs.umich.edu # include any simulated ticks before a checkpoint 6065075Sgblack@eecs.umich.edu explicit_maxticks = 0 6075075Sgblack@eecs.umich.edu maxtick_from_abs = m5.MaxTick 6085075Sgblack@eecs.umich.edu maxtick_from_rel = m5.MaxTick 6095075Sgblack@eecs.umich.edu maxtick_from_maxtime = m5.MaxTick 6105075Sgblack@eecs.umich.edu if options.abs_max_tick: 6115075Sgblack@eecs.umich.edu maxtick_from_abs = options.abs_max_tick 6125075Sgblack@eecs.umich.edu explicit_maxticks += 1 6135075Sgblack@eecs.umich.edu if options.rel_max_tick: 6145075Sgblack@eecs.umich.edu maxtick_from_rel = options.rel_max_tick 6155075Sgblack@eecs.umich.edu if options.checkpoint_restore: 6165075Sgblack@eecs.umich.edu # NOTE: this may need to be updated if checkpoints ever store 6175075Sgblack@eecs.umich.edu # the ticks per simulated second 6185075Sgblack@eecs.umich.edu maxtick_from_rel += cpt_starttick 6195075Sgblack@eecs.umich.edu if options.at_instruction or options.simpoint: 6205075Sgblack@eecs.umich.edu warn("Relative max tick specified with --at-instruction or" \ 6215075Sgblack@eecs.umich.edu " --simpoint\n These options don't specify the " \ 6225075Sgblack@eecs.umich.edu "checkpoint start tick, so assuming\n you mean " \ 6235075Sgblack@eecs.umich.edu "absolute max tick") 6245075Sgblack@eecs.umich.edu explicit_maxticks += 1 6254732Sgblack@eecs.umich.edu if options.maxtime: 6265075Sgblack@eecs.umich.edu maxtick_from_maxtime = m5.ticks.fromSeconds(options.maxtime) 6275075Sgblack@eecs.umich.edu explicit_maxticks += 1 6285075Sgblack@eecs.umich.edu if explicit_maxticks > 1: 6295075Sgblack@eecs.umich.edu warn("Specified multiple of --abs-max-tick, --rel-max-tick, --maxtime."\ 6305075Sgblack@eecs.umich.edu " Using least") 6315040Sgblack@eecs.umich.edu maxtick = min([maxtick_from_abs, maxtick_from_rel, maxtick_from_maxtime]) 6325040Sgblack@eecs.umich.edu 6335040Sgblack@eecs.umich.edu if options.checkpoint_restore != None and maxtick < cpt_starttick: 6345040Sgblack@eecs.umich.edu fatal("Bad maxtick (%d) specified: " \ 6355040Sgblack@eecs.umich.edu "Checkpoint starts starts from tick: %d", maxtick, cpt_starttick) 6364732Sgblack@eecs.umich.edu 6375040Sgblack@eecs.umich.edu if options.standard_switch or cpu_class: 6385076Sgblack@eecs.umich.edu if options.standard_switch: 6395040Sgblack@eecs.umich.edu print "Switch at instruction count:%s" % \ 6404756Sgblack@eecs.umich.edu str(testsys.cpu[0].max_insts_any_thread) 6414823Sgblack@eecs.umich.edu exit_event = m5.simulate() 6425040Sgblack@eecs.umich.edu elif cpu_class and options.fast_forward: 6435076Sgblack@eecs.umich.edu print "Switch at instruction count:%s" % \ 6445076Sgblack@eecs.umich.edu str(testsys.cpu[0].max_insts_any_thread) 6455076Sgblack@eecs.umich.edu exit_event = m5.simulate() 6465076Sgblack@eecs.umich.edu else: 6475076Sgblack@eecs.umich.edu print "Switch at curTick count:%s" % str(10000) 6485076Sgblack@eecs.umich.edu exit_event = m5.simulate(10000) 6495076Sgblack@eecs.umich.edu print "Switched CPUS @ tick %s" % (m5.curTick()) 6505076Sgblack@eecs.umich.edu 6516441Sgblack@eecs.umich.edu m5.switchCpus(testsys, switch_cpu_list) 6526441Sgblack@eecs.umich.edu 6535076Sgblack@eecs.umich.edu if options.standard_switch: 6546441Sgblack@eecs.umich.edu print "Switch at instruction count:%d" % \ 6555076Sgblack@eecs.umich.edu (testsys.switch_cpus[0].max_insts_any_thread) 6565076Sgblack@eecs.umich.edu 6575076Sgblack@eecs.umich.edu #warmup instruction count may have already been set 6585076Sgblack@eecs.umich.edu if options.warmup_insts: 6595076Sgblack@eecs.umich.edu exit_event = m5.simulate() 6605076Sgblack@eecs.umich.edu else: 6615076Sgblack@eecs.umich.edu exit_event = m5.simulate(options.standard_switch) 6625076Sgblack@eecs.umich.edu print "Switching CPUS @ tick %s" % (m5.curTick()) 6635076Sgblack@eecs.umich.edu print "Simulation ends instruction count:%d" % \ 6645076Sgblack@eecs.umich.edu (testsys.switch_cpus_1[0].max_insts_any_thread) 6655076Sgblack@eecs.umich.edu m5.switchCpus(testsys, switch_cpu_list1) 6665040Sgblack@eecs.umich.edu 6675076Sgblack@eecs.umich.edu # If we're taking and restoring checkpoints, use checkpoint_dir 6685040Sgblack@eecs.umich.edu # option only for finding the checkpoints to restore from. This 6694756Sgblack@eecs.umich.edu # lets us test checkpointing by restoring from one set of 6704732Sgblack@eecs.umich.edu # checkpoints, generating a second set, and then comparing them. 6714732Sgblack@eecs.umich.edu if (options.take_checkpoints or options.take_simpoint_checkpoints) \ 6724732Sgblack@eecs.umich.edu and options.checkpoint_restore: 6734732Sgblack@eecs.umich.edu 6744823Sgblack@eecs.umich.edu if m5.options.outdir: 6755040Sgblack@eecs.umich.edu cptdir = m5.options.outdir 6765076Sgblack@eecs.umich.edu else: 6775076Sgblack@eecs.umich.edu cptdir = getcwd() 6785076Sgblack@eecs.umich.edu 6795076Sgblack@eecs.umich.edu if options.take_checkpoints != None : 6805076Sgblack@eecs.umich.edu # Checkpoints being taken via the command line at <when> and at 6815076Sgblack@eecs.umich.edu # subsequent periods of <period>. Checkpoint instructions 6825076Sgblack@eecs.umich.edu # received from the benchmark running are ignored and skipped in 6836442Sgblack@eecs.umich.edu # favor of command line checkpoint instructions. 6846442Sgblack@eecs.umich.edu exit_event = scriptCheckpoints(options, maxtick, cptdir) 6856442Sgblack@eecs.umich.edu 6865076Sgblack@eecs.umich.edu # Take SimPoint checkpoints 6876442Sgblack@eecs.umich.edu elif options.take_simpoint_checkpoints != None: 6885076Sgblack@eecs.umich.edu takeSimpointCheckpoints(simpoints, interval_length, cptdir) 6895076Sgblack@eecs.umich.edu 6905076Sgblack@eecs.umich.edu # Restore from SimPoint checkpoints 6915076Sgblack@eecs.umich.edu elif options.restore_simpoint_checkpoint != None: 6925076Sgblack@eecs.umich.edu restoreSimpointCheckpoint() 6935076Sgblack@eecs.umich.edu 6945076Sgblack@eecs.umich.edu else: 6955076Sgblack@eecs.umich.edu if options.fast_forward: 6965040Sgblack@eecs.umich.edu m5.stats.reset() 6975076Sgblack@eecs.umich.edu print "**** REAL SIMULATION ****" 6985040Sgblack@eecs.umich.edu 6994756Sgblack@eecs.umich.edu # If checkpoints are being taken, then the checkpoint instruction 7004732Sgblack@eecs.umich.edu # will occur in the benchmark code it self. 7014732Sgblack@eecs.umich.edu if options.repeat_switch and maxtick > options.repeat_switch: 7024732Sgblack@eecs.umich.edu exit_event = repeatSwitch(testsys, repeat_switch_cpu_list, 7036443Sgblack@eecs.umich.edu maxtick, options.repeat_switch) 7045032Sgblack@eecs.umich.edu else: 7054823Sgblack@eecs.umich.edu exit_event = benchCheckpoints(options, maxtick, cptdir) 7065040Sgblack@eecs.umich.edu 7075076Sgblack@eecs.umich.edu print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_event.getCause()) 7085076Sgblack@eecs.umich.edu if options.checkpoint_at_end: 7095076Sgblack@eecs.umich.edu m5.checkpoint(joinpath(cptdir, "cpt.%d")) 7105076Sgblack@eecs.umich.edu 7115076Sgblack@eecs.umich.edu if not m5.options.interactive: 7125076Sgblack@eecs.umich.edu sys.exit(exit_event.getCode()) 7135076Sgblack@eecs.umich.edu