[Barrelfish-users] Running benchmark on multiple cores

[lijl at umich.edu]

Hi Georgios,

Thank you for your reply. So you mean, by using Qemu, even barrelfish
claims that it is running on multiple cores, it is actually running only on
1 core?

Thanks,

Jialin


On Tue, 4 Oct 2011 07:24:59 +0000, Georgios Varisteas <yorgos at kth.se>
wrote:
> Hi
> 
> I assume you are using Qemu. The downside with this emulator is that it
> will only use one core from the underlying system, even though you can
ask
> it to emulate up to 255. Also, you can not use the host OS' monitoring
> tools to check on any emulator's load, as they will constantly appear as
> using 100% of the core(s) they run on.
> 
> I have tested BOMP myself and it runs correctly. I propose to use a
> different emulator. I have found VirtualBox to be a very good tool for
> quick and easy trials.
> 
> Best regards,
> Georgios Varisteas
> 
> 
> ________________________________________
> From: Baumann  Andrew [andrewb at inf.ethz.ch]
> Sent: Tuesday, October 04, 2011 05:26
> To: lijl at umich.edu; barrelfish-users at lists.inf.ethz.ch
> Subject: Re: [Barrelfish-users] Running benchmark on multiple cores
> 
> Hi,
> 
> Can you paste the menu.lst file or fish command you used to run the
> benchmark? Did you pass the number of threads to use as the command-line
> argument to the benchmark programs?
> 
> What do you mean by "when I check the system monitor"?
> 
> Andrew
> 
>> -----Original Message-----
>> From: lijl at umich.edu [mailto:lijl at umich.edu]
>> Sent: Monday, 3 October 2011 19:27
>> To: barrelfish-users at lists.inf.ethz.ch
>> Subject: [Barrelfish-users] Running benchmark on multiple cores
>>
>>
>> Hi,
>>
>> I was trying to run the bomp benchmarks (with multiple threads) on
>> barrelfish. However, no matter how many cores I turned on (or off), the
>> result is always similar to that of a single core. It seems that only 1
>> core is busy doing the job when I check the system monitor. I appreciate
>> if
>> anyone could tell me how to run these benchmarks simultaneously on
>> multiple
>> cores.
>>
>> Thanks,
>>
>> Jialin Li
>>
>> University of Michigan
>> Computer Engineering
>> Advanced Computer Architecture Lab
>>
>> _______________________________________________
>> Barrelfish-users mailing list
>> Barrelfish-users at lists.inf.ethz.ch
>> https://lists.inf.ethz.ch/mailman/listinfo/barrelfish-users
> 
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