if you are running an AtomicSimpleCPU then yes, it is a 1 CPI machine
so what you are seeing is correct,
especially if you aren't assigning any caches to the CPUs to create
any kind of cache miss latency.
On Thu, Apr 3, 2008 at 1:41 AM, bipin kadel <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I am trying to run spec cpu benchmarks on 4 core CMP system in se
> mode. I am using ALPHA_SE. I have assigned 100 million
> for max_instrs_all_threads for each cpu. When I see the m5stats.txt
> file, it shows 100 million for number of cpu cycles simulated and
> also, 100 million for number of instructions executed on each cpu. That
> means, it is showing Intructions per cycle equals to 1. I think the value
> obtained is wrong. So could you please help me regarding this matter.
>
> The configuration file is :
>
> process1 = EioProcess()
> process1.file = "/speccpu2000/perlbmk/perlbmk.eio.gz"
>
> process2 =3D EioProcess()
> process2.file = "/speccpu2000/gap/gap.eio.gz"
>
> process3 =3D EioProcess()
> process3.file = "speccpu2000/vortex/vortex.eio.gz"
>
> process4 =3D EioProcess()
> process4.file = "/speccpu2000/twolf/twolf.eio.gz"
>
> system = System(cpu = [CPUClass(cpu_id=i) for i in xrange(np)],
> physmem = PhysicalMemory(range= AddrRange("512MB")),
> membus = Bus(), mem_mode = test_mem_mode)
>
> for i in xrange(np):
> system.cpu[i].max_insts_all_threads= 100000000
>
>
> system.cpu[0].workload =3D process1
> system.cpu[1].workload =3D process2
> system.cpu[2].workload =3D process3
> system.cpu[3].workload =3D process4
>
> The result obtained in m5stats.txt looks like:
>
> system.cpu0.not_idle_fraction 1 # Percentage of non-idle cycles
> system.cpu0.numCycles 100000000 # number of cpu cycles simulated
> system.cpu0.num_insts 100000000 # Number of instructions executed
> system.cpu0.num_refs 34901881 # Number of memory references
>
> .........
>
> system.cpu1.not_idle_fraction 1 # Percentage of non-idle cycles
> system.cpu1.numCycles 100000000 # number of cpu cycles simulated
> system.cpu1.num_insts 100000000 # Number of instructions executed
> system.cpu1.num_refs 32273950 # Number of memory references
>
> ...........
> system.cpu2.not_idle_fraction 1 # Percentage of non-idle cycles
> system.cpu2.numCycles 100000000 # number of cpu cycles simulated
> system.cpu2.num_insts 100000000 # Number of instructions executed
> system.cpu2.num_refs 38511760 # Number of memory references
> .......
> system.cpu3.not_idle_fraction 1 # Percentage of non-idle cycles
> system.cpu3.numCycles 100000000 # number of cpu cycles simulated
> system.cpu3.num_insts 100000000 # Number of instructions executed
> system.cpu3.num_refs 28610533 # Number of memory references
>
>
>
>
>
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--
----------
Korey L Sewell
Graduate Student - PhD Candidate
Computer Science & Engineering
University of Michigan
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