[Barrelfish-users] set the number of cores
antoniob at vt.edu
Wed Nov 26 16:30:00 CET 2014
thank you very much! That worked!
I am now basically setting cores_on_boot variable in
usr/kaluga/start_cpu.c:watch_for_cores(void) function to the number of
cores I want.
On Wed, Nov 26, 2014 at 5:07 AM, Gerd Zellweger <gerd.zellweger at inf.ethz.ch>
> Hi Antonio,
> If you are running Kaluga it will automatically listen for new core events
> from ACPI and start the cores accordingly.
> Have a look at
> if you want to tune the behaviour or suppress cores being booted.
> If you want to directly modify the core discovery in ACPI, it is done here
> (line 182ff):
> Also note that we will shortly release a new core management
> infrastructure based on our work for OSDI this year that will make core
> management much simpler.
> Hope this helps,
> On 2014-11-26 00:44, Antonio Barbalace wrote:
>> Dear all,
>> I am trying to boot Barrelfish on a reduced number of cores.
>> The following line in the menu.lst does not have any effect:
>> module /barrelfish/x86_64/sbin/spawnd boot bootapic-x86_64=1-8
>> I also try to manually modify different source files but without any
>> For example I modified the macro MAX_COREID but it was giving a
>> compiler error,
>> I also modified usr/spawnd/bsp_bootup.c in different ways, again
>> any suggestion is very welcome!
>> Dr. Eng. Antonio Barbalace, PhD
>> Systems Software Research Group (SSRG)
>> Bradley Department of Electrical and Computer Engineering
>> Virginia Tech
>> 453 Durham Hall (0111)
>> Blacksburg, VA 24061
>> phone: +1 (540) 231-2494 
>> email: antoniob at vt.edu
>>  tel:%2B1%20%28540%29%20231-2494
>> Barrelfish-users mailing list
>> Barrelfish-users at lists.inf.ethz.ch
Dr. Eng. Antonio Barbalace, PhD
Systems Software Research Group (SSRG)
Bradley Department of Electrical and Computer Engineering
453 Durham Hall (0111)
Blacksburg, VA 24061
phone: +1 (540) 231-2494
email: antoniob at vt.edu
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