[Xenomai-help] Specifying/changing the number of CPU core's in xenomai:

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* [Xenomai-help] Specifying/changing the number of CPU core's in xenomai: - reg
@ 2012-03-06  6:46 SUBRAMANIAN NATESAN
  2012-03-06  9:25 ` Gilles Chanteperdrix
  0 siblings, 1 reply; 2+ messages in thread
From: SUBRAMANIAN NATESAN @ 2012-03-06  6:46 UTC (permalink / raw)
  To: xenomai

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Hi,

In a multi-core environment, is it possible in xenomai, to specify the cpu
cores which should or should not be used? Like if there are 4 cores, can we
specify, that core 2 need not be used at all, dynamically, during the
execution of a real time task?

-- 
Regards,
Subramanian.

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [Xenomai-help] Specifying/changing the number of CPU core's in xenomai: - reg
  2012-03-06  6:46 [Xenomai-help] Specifying/changing the number of CPU core's in xenomai: - reg SUBRAMANIAN NATESAN
@ 2012-03-06  9:25 ` Gilles Chanteperdrix
  0 siblings, 0 replies; 2+ messages in thread
From: Gilles Chanteperdrix @ 2012-03-06  9:25 UTC (permalink / raw)
  To: SUBRAMANIAN NATESAN; +Cc: xenomai

On 03/06/2012 07:46 AM, SUBRAMANIAN NATESAN wrote:
> Hi,
> 
> In a multi-core environment, is it possible in xenomai, to specify the cpu
> cores which should or should not be used? Like if there are 4 cores, can we
> specify, that core 2 need not be used at all, dynamically, during the
> execution of a real time task?

You can use sched_setaffinity to set the CPU on which a task should run.
-- 
                                                                Gilles.


^ permalink raw reply	[flat|nested] 2+ messages in thread

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2012-03-06  6:46 [Xenomai-help] Specifying/changing the number of CPU core's in xenomai: - reg SUBRAMANIAN NATESAN
2012-03-06  9:25 ` Gilles Chanteperdrix

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