On 12/08/18 00:41, Chris Johns wrote:
On 10/08/2018 22:30, Sebastian Huber wrote:
Hello Stavros,
you can do this with a custom clustered scheduler configuration:
https://docs.rtems.org/branches/master/c-user/configuring_a_system.html#clustered-scheduler-configuration
I had a brief look over the documentation you provided but could not see how to
achieve the result you are saying.
Stavros, asked for two things.
1. A way to change properties of the initialization task which are not covered
by configuration options
https://docs.rtems.org/branches/master/c-user/configuring_a_system.html#classic-api-initialization-tasks-table-configuration
before the initialization task runs. To do this some user provided code must
execute after the initialization task is created and before it runs. My
suggestion to use a device driver initialization function for this doesn't
work. The initialization task is created after the device driver
initialization. It can be done via a system initialization handler using the
undocumented RTEMS_SYSINIT_ITEM(). Maybe also a high priority constructor,
however, in this case the task already runs.
2. A way to pin a task to a particular processor. There are two options to do
this in RTEMS. One is a clustered scheduler configuration, the other is the use
of a thread to processor affinity.
Alternatively, on a recent version the default SMP scheduler supports a
one-to-one affinity. You can set it in a device driver.
Is there an example of how to do this?
Chris
----- Am 10. Aug 2018 um 14:10 schrieb Passas, Stavros stavros.pas...@intel.com:
Hi,
In my local SMP enabled RTEMS, I notice core1 starting the Init() function of
the user application.
Is there a way to enforce RTEMS to run the Init() in the boot processor, when
SMP is enabled?
Best Regards,
Stavros
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