[Linux-ia64] Proc num on an MP plateform

[Linux-ia64] Proc num on an MP plateform

[gerard]

Hi
I am working on a MP system and I need to know on which
proc num I am running, is there a macro/function call to do this?(kernel
mode).

Thanks in advance.
Gerard LYONNAZ

Re: [Linux-ia64] Proc num on an MP plateform

[Alex Williamson]

Gerard,

   ia64_get_lid() returns the processor interrupt id and eid.  That
should be enough to uniquely identify which CPU you're one.

	Alex

gerard wrote:
> 
> Hi
> I am working on a MP system and I need to know on which
> proc num I am running, is there a macro/function call to do this?(kernel
> mode).
> 
> Thanks in advance.
> Gerard LYONNAZ
> 

--
Alex Williamson                                  Linux Development Lab
awilliam@fc.hp.com                                     Hewlett Packard
970-898-9173                                          Fort Collins, CO

Re: [Linux-ia64] Proc num on an MP plateform

[David Mosberger]

>>>>> On Tue, 04 Sep 2001 15:01:28 +0200, gerard <gerard@mylos.grenoble.hp.com> said:

  Gerard> Hi I am working on a MP system and I need to know on which
  Gerard> proc num I am running, is there a macro/function call to do
  Gerard> this?(kernel mode).

Depends on what number you want.  If you want the SAPIC id,
ia64_get_lid() is the way to go.  If you just want a unique number,
you can use smp_processor_id().  If you want a number in the range
from 0..smp_num_cpus-1, you can use cpu_number_map(smp_processor_id()).

	--david