Re: [Gems-users] Some questions about MOESI_CMP_directory

[Mike Marty <mikem@xxxxxxxxxxx>]

> OK, I see. Thank you , Mike. I just try to follow the general design
> and procedure of this protocol.
>
> What about the prioritized VNs I asked in last email? Do you have any
> idea about this?
>
>   
Yes, VN are prioritized.  I don't remember the exact reason for 
inverting the priorities, but I imagine it had to do with preventing 
starvation.  I believe Brad added this when working with FINITE_BUFFERING
--Mike

> > I am wondering has Ruby prioritized the different VNs? I remember that
> > the Throttle in the network source code satisfies the bandwidth
> > requirements from VN3 to VN0, which means the VN3 gets the highest
> > priority, but these priorities will be inverted if the variable
> > m_wakeups_wo_switch in Throttle exceeds a constant
> > PRIORITY_SWITCH_LIMIT. Is there anywhere else related to the
> > prioritized VNs? Why did you do that?
> >     
> Thanks,
> Lide
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