Michel Doyon wrote:
>
> hi,
>
> Is there a way of completely locking a CPU with RTAI and for some
> particular operation completely dedicate one CPU out of a 2 CPU machine
> such that 1 cpu continuously poll some flag on a data acquisition card ?
>
> Thank you
>
> Michel
With both the SMP and MUP scheduler you can use rt_set_runnable_on_cpus
to lock a task to a specific CPU. In MUP the task is in fact already
assigned to a single default CPU, but you can change it. If the task
sucks all the time in polling for an event it will lock the CPU it is
on.
Ciao, Paolo.
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