Hi All,
I have tried with a multithreaded program which runs
on different cores. Initially I had two threads in my
program and I created 2 cores in the fs.py file.
That's working fine. But when I tried with three
threads running on 3 cores, the simulation gets
hanged. Below is my fs.py file. Please let me know
where I am doing wrong.
***************************************************
import optparse, os, sys
import m5
from m5.objects import *
m5.AddToPath('../common')
from FSConfig import *
from SysPaths import *
from Benchmarks import *
parser = optparse.OptionParser()
parser.add_option("-d", "--detailed",
action="store_true")
parser.add_option("-t", "--timing",
action="store_true")
parser.add_option("-m", "--maxtick", type="int")
parser.add_option("--maxtime", type="float")
parser.add_option("--dual", action="store_true",
help="Simulate two systems attached
with an ethernet link")
parser.add_option("-b", "--benchmark", action="store",
type="string",
dest="benchmark",
help="Specify the benchmark to run.
Available benchmarks: %s"\
% DefinedBenchmarks)
parser.add_option("--etherdump", action="store",
type="string", dest="etherdump",
help="Specify the filename to dump a
pcap capture of the ethernet"
"traffic")
(options, args) = parser.parse_args()
if args:
print "Error: script doesn't take any positional
arguments"
sys.exit(1)
if options.detailed:
cpu = DetailedO3CPU()
cpu2 = DetailedO3CPU()
mem_mode = 'timing'
elif options.timing:
cpu = TimingSimpleCPU()
cpu2 = TimingSimpleCPU()
mem_mode = 'timing'
else:
cpu = AtomicSimpleCPU()
cpu2 = AtomicSimpleCPU()
mem_mode = 'atomic'
cpu.clock = '2GHz'
cpu2.clock = '2GHz'
if options.benchmark:
if options.benchmark not in Benchmarks:
print "Error benchmark %s has not been
defined." % options.benchmark
print "Valid benchmarks are: %s" %
DefinedBenchmarks
sys.exit(1)
bm = Benchmarks[options.benchmark]
else:
if options.dual:
bm = [Machine(), Machine()]
else:
bm = [Machine()]
if len(bm) == 2:
s1 = makeLinuxAlphaSystem(mem_mode, bm[0])
s1.cpu = cpu
cpu.connectMemPorts(s1.membus)
cpu.mem = s1.physmem
s2 = makeLinuxAlphaSystem(mem_mode, bm[1])
s2.cpu = cpu2
cpu2.connectMemPorts(s2.membus)
cpu2.mem = s2.physmem
root = makeDualRoot(s1, s2, options.etherdump)
elif len(bm) == 1:
#root = Root(clock = '1THz',
# system =
makeLinuxAlphaSystem(mem_mode, bm[0]))
#root.system.cpu = cpu
#cpu.connectMemPorts(root.system.membus)
#cpu.mem = root.system.physmem
system = makeLinuxAlphaSystem(mem_mode, bm[0])
system.cpu = [AtomicSimpleCPU(clock = '1GHz'),
AtomicSimpleCPU(clock
= '1GHz'), AtomicSimpleCPU(clock = '1GHz')]
system.cpu[0].connectMemPorts(system.membus)
system.cpu[0].mem = system.physmem
system.cpu[1].connectMemPorts(system.membus)
system.cpu[1].mem = system.physmem
system.cpu[2].connectMemPorts(system.membus)
system.cpu[2].mem = system.physmem
root = Root(clock = '3GHz', system = system)
else:
print "Error I don't know how to create more than
2 systems."
sys.exit(1)
m5.instantiate(root)
if options.maxtick:
maxtick = options.maxtick
elif options.maxtime:
simtime = int(options.maxtime * root.clock.value)
print "simulating for: ", simtime
maxtick = simtime
else:
maxtick = -1
exit_event = m5.simulate(maxtick)
while exit_event.getCause() == "checkpoint":
m5.checkpoint(root, "cpt.%d")
exit_event = m5.simulate(maxtick - m5.curTick())
print 'Exiting @ cycle', m5.curTick(), 'because',
exit_event.getCause()
*************************************************
Regadrs-
Rajdeep
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