How many cores does the ARM branch support?

How many cores does the ARM branch support?

[Michelle Konzack]

Hello OverGeeks and *,

I have gotten a new gadget which run only with 700MHz but has  32 cores.
Support 16 GE Interfaces a 50 Gbit universal interface and 4 PCIe ports,
SATA HDD and much more...

...and yes, this ARM microcontroller is a telecommunications controller.

However, I have the Evaluation  Kit  and  a  PCIe  graphiccard  and  now
installed Debian ARMEL.  Unfortunately I get only 2 cores working...

What must I do to get the other 30 cores?

(without them, my Marvel Discovery MV78200 us 5 times faster)

And is it possibel, to get 100 cores running?
(this is the bigger version of the microcontroller I have)

I like to transform the 32 and 100 core versions into PanelPCs with  the
ultimate super power...  :-D  ...even it will be only a gadget for me!

Thanks, Greetings and nice Day/Evening
    Michelle Konzack

-- 
##################### Debian GNU/Linux Consultant ######################
   Development of Intranet and Embedded Systems with Debian GNU/Linux
               Internet Service Provider, Cloud Computing
                <http://www.itsystems.tamay-dogan.net/>

itsystems at tdnet                     Jabber  linux4michelle at jabber.ccc.de
Owner Michelle Konzack

Gewerbe Strasse 3                   Tel office: +49-176-86004575
77694 Kehl                          Tel mobil:  +49-177-9351947
Germany                             Tel mobil:  +33-6-61925193  (France)

USt-ID:  DE 278 049 239

Linux-User #280138 with the Linux Counter, http://counter.li.org/
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.pgp
Type: application/pgp-signature
Size: 190 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20121002/32fc8ba9/attachment.sig>

How many cores does the ARM branch support?

[Gregory CLEMENT]

On 10/02/2012 06:31 AM, Michelle Konzack wrote:
> Hello OverGeeks and *,
> 

Hello Michelle,

> I have gotten a new gadget which run only with 700MHz but has  32 cores. Support 16 GE Interfaces a 50 Gbit universal interface and 4 PCIe ports, SATA HDD and much more...
> 
> ...and yes, this ARM microcontroller is a telecommunications controller.
> 
> However, I have the Evaluation  Kit  and  a  PCIe  graphiccard  and  now installed Debian ARMEL.  Unfortunately I get only 2 cores working...
> 
> What must I do to get the other 30 cores?

You have to check that your kernel was compiled with CONFIG_NR_CPUS = 32.
Checks also that you don't have "nr_cpus=2" in your kernel parameter.

> 
> (without them, my Marvel Discovery MV78200 us 5 times faster)
> 
> And is it possibel, to get 100 cores running? (this is the bigger version of the microcontroller I have)

Currently the maximum number of core supported is limited to 32.
the NR_CPUS range is from 2 to 32 for ARM.

Regards,
Gregory

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

How many cores does the ARM branch support?

[Jean-Christophe PLAGNIOL-VILLARD]

On 06:31 Tue 02 Oct     , Michelle Konzack wrote:
> Hello OverGeeks and *,
> 
> I have gotten a new gadget which run only with 700MHz but has  32 cores.
> Support 16 GE Interfaces a 50 Gbit universal interface and 4 PCIe ports,
> SATA HDD and much more...
> 
> ...and yes, this ARM microcontroller is a telecommunications controller.
> 
> However, I have the Evaluation  Kit  and  a  PCIe  graphiccard  and  now
> installed Debian ARMEL.  Unfortunately I get only 2 cores working...
> 
> What must I do to get the other 30 cores?
32 cores on arm? which soc is it

usualy the nr_cpus is set to 2 check it
> 
> (without them, my Marvel Discovery MV78200 us 5 times faster)
> 
> And is it possibel, to get 100 cores running?
> (this is the bigger version of the microcontroller I have)
> 
> I like to transform the 32 and 100 core versions into PanelPCs with  the
> ultimate super power...  :-D  ...even it will be only a gadget for me!
Best Regards,
J.
> 
> Thanks, Greetings and nice Day/Evening
>     Michelle Konzack
> 
> -- 
> ##################### Debian GNU/Linux Consultant ######################
>    Development of Intranet and Embedded Systems with Debian GNU/Linux
>                Internet Service Provider, Cloud Computing
>                 <http://www.itsystems.tamay-dogan.net/>
> 
> itsystems at tdnet                     Jabber  linux4michelle at jabber.ccc.de
> Owner Michelle Konzack
> 
> Gewerbe Strasse 3                   Tel office: +49-176-86004575
> 77694 Kehl                          Tel mobil:  +49-177-9351947
> Germany                             Tel mobil:  +33-6-61925193  (France)
> 
> USt-ID:  DE 278 049 239
> 
> Linux-User #280138 with the Linux Counter, http://counter.li.org/



> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

How many cores does the ARM branch support?

[Arnd Bergmann]

On Tuesday 02 October 2012, Michelle Konzack wrote:
> I have gotten a new gadget which run only with 700MHz but has  32 cores.
> Support 16 GE Interfaces a 50 Gbit universal interface and 4 PCIe ports,
> SATA HDD and much more...
> 
> ...and yes, this ARM microcontroller is a telecommunications controller.
> 
> However, I have the Evaluation  Kit  and  a  PCIe  graphiccard  and  now
> installed Debian ARMEL.  Unfortunately I get only 2 cores working...
> 
> What must I do to get the other 30 cores?

You have to be a little more specific with the configuration. The mainline
kernel supports no hardware that have more than 4 cores at the moment, so
whatever kernel you are running already has to have some out of tree patches
on it. The system you describe sounds interesting enough to make everyone
want to have another look, but there is no point without looking at those
patches first. Could you upload them to a public git tree?

I suspect that the system you have actually has 16 dual-core systems on
a chip (or on a board), so you could run up to 16 separate instances of
Linux on it, but not a single instance that sees all the cores.

	Arnd