[PATCH] Rename CONFIGURE_SMP_MAXIMUM_PROCESSORS

[Chris Johns]

> On 1 Feb 2017, at 11:30 pm, Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:
> 
>> On 01/02/17 15:22, Joel Sherrill wrote:
>> 
>> 
>> On Feb 1, 2017 8:02 AM, "Sebastian Huber" <sebastian.huber at embedded-brains.de <mailto:sebastian.huber at embedded-brains.de>> wrote:
>> 
>>    On 01/02/17 14:53, Joel Sherrill wrote:
>> 
>>        The inclusion of SMP categorizes the option. Many, if not
>>        most, configure options have a second word which is the
>>        category. All the POSIX options include POSIX in the name,
>>        gnat, Go, etc.
>> 
>> 
>>    This is the only CONFIGURE_SMP_* option left, a category should
>>    consist of more than one member. The current pattern for the
>>    maximum defines is CONFIGURE_MAXIMUM[_CATEGORY]_*. A
>>    CONFIGURE_MAXIMUM_SMP_PROCESSORS is not really that great.
>> 
>> 
>> 
>>        All of our services are rtems_CATEGORY.
>> 
>>        It isn't about the shortest name with RTEMS. It is about the
>>        clearest name with grouping.
>> 
>>        I don't want to see this pattern violated and am opposed to
>>        this change.
>> 
>>        Otherwise, this would be CONF_MAX_CPUS or similar and we don't
>>        want that.
>> 
>> 
>>    In general I agree, however, SMP or non-SMP shouldn't be a
>>    category for the configuration. I think its like
>>    CONFIGURE_TICKS_PER_TIMESLICE or CONFIGURE_MICROSECONDS_PER_TICK a
>>    configuration option that sets up your application environment.
>> 
>> 
>> Are there any options without SMP which should have them?
>> 
>> If not, I agree.
> 
> I update currently the SMP chapter in the user manual. I thought that this would simplify the things a bit.
> 
> The clustered scheduler configuration uses the SCHEDULER category. I don't think we added anything SMP-specific except CONFIGURE_SMP_MAXIMUM_PROCESSORS (to be renamed) and CONFIGURE_SMP_APPLICATION (to be removed).
> 

In SMP is it the number of processors, cores, or CPUs? 

How does the setting relate to an MP system? What about an MP system of SMP "devices" (because processors is being overloaded in this context) ?

Chris