LEON3 Multiprocessor support

[Gedare Bloom]

On Tue, Nov 19, 2013 at 6:06 AM, Sebastian Huber
<sebastian.huber at embedded-brains.de> wrote:
> On 2013-11-19 11:56, Leonard Bise wrote:
>>
>> Am I correct in thinking that this section of the RTEMS doc :
>>
>> http://rtems.org/onlinedocs/doc-current/share/rtems/html/c_user/Multiprocessing-Manager.html#Multiprocessing-Manager
>>
>> Talks about what I want or is that something else entirely? I'm a bit loss
>> with
>> your comment about multiprocessing support in RTEMS Sebastian.
>
>
> RTEMS_MULTIPROCESSING:
>
> Independent single-processor RTEMS instances share global objects.  State
> changes are exchanged by means of message passing.
>
Typical use for RTEMS_MULTIPROCESSING would be when attaching multiple
processors across a bus. You would reasonably use this option when the
communication between processors is on par with memory access, or
slower than accessing memory.

> RTEMS_SMP:
>
> One symmetric multi-processor RTEMS instance runs on multiple processors.
>
Use RTEMS_SMP when the communication between processors can be faster
than memory access, for example in a chip multicore.

If you're investigating RTEMS for a dual core, you'll probably want
the RTEMS_SMP if you can handle waiting for / helping production
quality to come

-Gedare

>
> --
> Sebastian Huber, embedded brains GmbH
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